Nylon was developed by Carothers, an outstanding American scientist, and a research team under his leadership. It is the first synthetic fiber in the world. The emergence of nylon has given textiles a new look. Its synthesis is a major breakthrough in the synthetic fiber industry and a very important milestone in polymer chemistry. In 1935, a polymer was made from adipic acid and hexamethylenediamine. Since both components contain 6 carbon atoms, it was called polymer 66 at the time. He melted the polymer and squeezed it out through an injection needle, and stretched it under tension to call it fiber. This fiber is polyamide 66 fiber. After industrialization in 1939, it was named Nylon. It is the earliest synthetic fiber variety to achieve industrialization. English name: Polyamide6 or Nylon6, referred to as PA6; Nylon 6, also known as polyamide 6, is polycaprolactam, which is obtained by ring-opening polycondensation of caprolactam. It is a translucent or opaque milky white resin with excellent mechanical properties, stiffness, toughness, wear resistance and mechanical shock absorption, good insulation and chemical resistance. Widely used in automotive parts, electronic and electrical parts and other fields. English name: Polyamide66 or Nylon6; PA66 for short; Nylon 66, also known as polyamide 66, is polyhexamethylene adipamide. Compared with nylon 6, its mechanical strength, stiffness, heat resistance, wear resistance, and creep resistance are better, but its impact strength and mechanical shock absorption performance are reduced. It is widely used in automobiles, drones, electronic and electrical, etc.

Haiyang Technology Co., Ltd. insists that every product has excellent quality, and quality control adopts internal control enterprise standards that meet national and industry standards.   "Haiyang" brand nylon 6 chips are produced with liquid materials and solid materials imported from the United States, the Netherlands, Japan and other countries. They adopt VK continuous polymerization, underwater pelletizing, airflow continuous drying, DCS control and other process technologies. The polymerization monomer recovery adopts the PE company's oligomer high-pressure cracking process route, and the matting agent and additives are pure imported products. The molecular weight distribution, terminal amino group, monomer content and other indicators of "Haiyang" brand nylon 6 chips are better.   Quality Assurance   "Haiyang" brand nylon 6 chips are sampled and tested in batches 24 hours a day for all incoming materials. Strict "self-inspection, mutual inspection, and full-time inspection" three-inspection management is implemented for process inspection and finished product delivery. All quality abnormalities can be traced back to specific personnel and machines.   The company has not only established a modern quality inspection center, but also physical and chemical testing equipment has reached the domestic excellent level. Jiangsu Haiyang Chemical Fiber New Material Testing Base has been successfully listed in the China Fine Chemicals Testing Center, providing a more powerful guarantee for the company's quality control.   The company carries out on-site quality improvement activities every week from grassroots to middle and senior management. The quality improvement and innovation have made the "Haiyang" brand nylon 6 chips as beautiful as its name, winning the favor of industry benchmark companies such as Kingfa Technology, Julong T

Nylon "6" chips are polymer compounds made from caprolactam as raw material, adding a certain amount of additives, polymerizing under certain process conditions, and going through processes such as tape injection, pelletizing, extraction and vacuum drying. Nylon 6 slices (nylon 6 slices) are sheet-shaped granulated products obtained by using the pelletizing method due to their low melt strength in nylon production. The product is colorless, transparent, cylindrical particles with no mechanical impurities and uniform particle size.          Regarding physical properties: polyamide 6 slices, commonly known as nylon 6 slices and nylon 6 slices. Because the macromolecule contains amide bonds (-CO-NH-), it is called polyamide. Nylon 6 slices are usually in the form of white cylindrical particles, with a melting point of 210-220°C and a decomposition temperature of about 300°C. Soluble in phenol and hot concentrated sulfuric acid, it has excellent electrical insulation properties, good alkali resistance and corrosion resistance.   The slices made from nylon as raw material are nylon slices. Such as polyamide 6 slices, commonly known as nylon 6 slices and nylon 6 slices. Nylon 6 slices are usually in the form of white cylindrical particles, with a melting point of 210-220°C and a decomposition temperature of about 300°C. Soluble in phenol and hot concentrated sulfuric acid, it has excellent electrical insulation properties, good alkali resistance and corrosion resistance. Nylon is a fiber with the best wear resistance among synthetic fibers.          The production of nylon 6 slices adopts two-end polymerization, continuous extraction, connected drying and DCS distribution system control. The product is colorless, transparent, cylindrical particles with no mechanical impurities and uniform particle size. Nylon 6 slices are corrosion-resistant and wear-resistant, sol

The temperature resistance range of nylon is generally between -40℃ and 120℃. Different types of nylon materials have different temperature resistance properties. The following is a detailed introduction: 1. Nylon 6 (Nylon 6) and nylon 66 (Nylon 66), their maximum operating temperatures are usually 80°C and 120°C respectively. 2. Urethane nylon (PA6T) and polyamide 11 (PA11). These materials have higher temperature resistance, and the maximum operating temperature can reach about 150℃ and 170℃. 3. Glass fiber reinforced nylon (GFN) and carbon fiber reinforced nylon (CFN). These reinforced nylon materials have very high strength and rigidity, as well as excellent durability. Chemical resistance and high temperature resistance. Under normal use conditions, their temperature resistance range can reach -40℃ to 150℃.    Nylon is a common synthetic fiber with excellent resistance to abrasion, chemicals, and heat. The temperature resistance range of nylon refers to the temperature range it can withstand. This range depends on the type and use of nylon. Generally speaking, the temperature resistance range of nylon is between 60℃ and 120℃. Among them, nylon 6 and nylon 66 are the two most common nylons, and their temperature resistance ranges are respectively 80℃ to 100℃ and 120℃ to 150℃. In addition, there are some special nylons, such as nylon 11 and nylon 12, whose temperature resistance range can reach more than 200℃. The temperature range of nylon is very important for its application. In high temperature environments, nylon will soften, deform or even melt, affecting its performance and service life. therefore, When selecting nylon materials, its temperature resistance range needs to be determined based on specific usage conditions.

As the global economy develops and technology advances, the demand for polyamide 6 chips is expected to continue to grow. Polyamide 6 chips have excellent wear resistance, high temperature resistance and chemical stability, and are widely used in automotive parts, electronic products, aerospace and other fields. As these industries continue to develop and expand, the demand for polyamide 6 chips will continue to increase. At the same time, as environmental awareness increases, the demand for recyclable materials is also increasing. As a recyclable material, polyamide 6 chips will be favored by more markets. Therefore, the demand for polyamide 6 chips in the future market will show a steady growth trend.

The domestic carbon fiber industry has experienced a long cold winter, but in the past three years since the outbreak of the global new crown epidemic, it has ushered in spring unexpectedly. In 2022, under the background of sluggish demand in the textile downstream market, severe overall chemical fiber market conditions, prices running at low levels throughout the year, an obvious lack of industry operating rates, and heavy pressure on corporate profits, domestic carbon fiber continues to perform a unique "drama." Although some carbon fiber companies briefly suspended production in the first half of the year, and poor logistics in many places also intermittently affected the shipments of many companies, the price of large tows this year has declined to a certain extent based on the high level last year. However, in the face of the hot market , these small twists and turns seem not worth mentioning. This year, the production lines were basically running at full capacity, product production and sales were booming and even supply exceeded demand, companies generally made "a lot of money", and multiple new projects were racing against time to meet the deadline... This is the "main theme" of the domestic carbon fiber industry. Stable supply of small tows to major areas Aerospace has always been the dominant application area of carbon fiber, and the products used are small tows. Directed supply orders to major customers in the aerospace field are the "ballast stone" and "stabilizer" that enable my country's carbon fiber industry to maintain stable operation every year. Weihai Guangwei Composite Materials Co., Ltd. (hereinafter referred to as "Guangwei Composite Materials") is my country's main supplier of carbon fiber for national defense and military industry. At the end of last year, Guangwei Composite Materials signed a 10-quarter shaped fiber sales contract totalin

In recent years, with the continuous development of 3D printing technology, more and more materials have been used in this field. Among many 3D printing materials, bright nylon 6 slices have attracted much attention due to their excellent performance and high quality. Bright nylon 6 slice is a slice based on nylon 6 material, which is characterized by smooth and delicate surface, good wear resistance and high temperature resistance. Compared with traditional nylon materials, the surface of bright nylon 6 slices is smoother and has no obvious layering, making the printed model more detailed and realistic. At the same time, bright nylon 6 slices have good wear resistance and can handle long-term use and friction, making printed parts more durable. In addition to its smooth surface and wear resistance, bright nylon 6 slices also have excellent high temperature resistance. In high-temperature environments, traditional nylon materials are prone to deformation or loss of mechanical properties, while bright nylon 6 slices can maintain their stability and strength and are suitable for more application scenarios. This makes bright nylon 6 slices an ideal choice for aerospace, automobile manufacturing, machinery manufacturing and other fields. The application of bright nylon 6 slices is not limited to traditional manufacturing fields, it also plays an important role in the medical field. Bright nylon 6 slices have good biocompatibility and can be used to make medical devices, human tissue models, etc. Its smooth surface and fine printing effect make medical devices easier to clean and disinfect, reducing the risk of infection. At present, bright nylon 6 slices have gained wide recognition and application in the market. More and more manufactu

In recent years, the application of nylon 6 chips in the textile industry has received more and more attention and recognition. Nylon 6 chips are a high-performance synthetic fiber with excellent physical properties and chemical stability. They are widely used in clothing, home textiles, automotive interiors and other fields. One of the advantages of nylon 6 chips is its high strength and wear resistance. Compared to other synthetic fibers, nylon 6 chips have higher tensile strength and abrasion resistance, giving them a longer service life and better durability in textile manufacturing. This makes nylon 6 chips ideal for making high-quality sportswear, outdoor gear and workwear. In addition, nylon 6 slices also have excellent hygroscopicity and breathability. The structure of nylon 6 sliced fibers enables it to quickly absorb and release moisture, keeping the human body dry and comfortable. This makes nylon 6 slices an ideal material for products that require good breathability, such as underwear, socks and sportswear. Nylon 6 slices also have good dyeing properties. Nylon 6 slice fiber can be dyed to have rich colors and bright appearance, making textiles made with nylon 6 slice more attractive and fashionable. Nylon 6 chips are also widely used in the field of automotive interiors. The high strength and abrasion resistance of nylon 6 slices make it ideal for use in car seat fabrics and headliners. In addition, nylon 6 chips also have flame retardant properties and high temperature resistance, making them a safe and reliable option for making automotive interior materials. As people pay more and more attention to environmental protection and sustainable development, the recyclability and reusability of nylon 6 slices have also become one of the reasons for its popularity. Nylon 6 chips can be recycled and reprocessed to make new textiles, reducing the demand for raw materials, reducing reso

In recent years, nylon 6 chips have attracted widespread attention as a sustainable material. Nylon 6 chips are fiber chips made from regenerated nylon 6 material, which have the same properties and uses as traditional nylon 6, but are more environmentally friendly and recyclable. Recently, a leading nylon 6 chip manufacturer announced the launch of a new nylon 6 chip product made from 100% recycled nylon 6 material. This innovation means that virgin nylon 6 materials no longer need to be used, reducing reliance on limited resources while also reducing negative environmental impact. This new nylon 6 chip product is equivalent in performance to traditional nylon 6 chips and can be widely used in automobiles, textiles, household products and other fields. Compared with traditional nylon 6 chips, this regenerated nylon 6 chip has a lower carbon footprint and higher sustainability, so it is sought after by many businesses and consumers. According to the manufacturer, the regenerated nylon 6 material they use comes from the recycling and reprocessing of discarded nylon products. Through advanced recycling technology, they are able to convert these wastes into high-quality regenerated nylon 6 chips, achieving effective utilization and recycling of resources. This innovation is of great significance in promoting sustainable development and increasing environmental awareness. As a widely used material, the production process of nylon 6 chips usually generates a large amount of waste and emissions. By using recycled nylon 6 materials, the need for virgin materials can be reduced, environmental pollution reduced, and the service life of resources extended. With the increasing awareness of su

Haiyang Chemical Fiber Company has announced the launch of a new environmentally friendly fiber product that will help reduce environmental impact and provide more sustainable textile solutions. This new fiber product is made from renewable materials and offers excellent performance and sustainability. The new fiber produces lower greenhouse gas emissions during production than traditional synthetic fibers and reduces reliance on limited resources. In addition, the product offers excellent softness, wrinkle resistance and durability, making it suitable for a variety of textile applications. Haiyang Chemical Fiber Company stated that they are committed to promoting the sustainable development of the textile industry and reducing negative impacts on the environment through innovative products and technologies. They hope this new eco-friendly fiber product will help customers achieve their sustainability goals and provide them with a greener choice. The product has passed a series of rigorous environmental and quality tests and obtained relevant certifications. Haiyang Chemical Fiber Company stated that they will ensure that the quality and performance of their products meet customer needs and provide comprehensive technical support and services. Haiyang Chemical Fiber Company plans to promote this new environmentally friendly fiber product globally and work with partners from all walks of life to promote sustainable development. They believe that through innovation and collaboration, the textile industry can achieve a greener and sustainable future. As soon as the news was released, it immediately attracted widespread attention and appreciation. Many textile companies expressed that

As people's attention to healthy eating continues to increase, dehydrated vegetables, as a substitute for fresh ingredients, are gradually becoming the new favorite of healthy living. Dehydrated vegetables are favored by more and more people in modern society due to their convenience, rich nutrition and long-term preservation. Dehydrated vegetables are made by removing the water from fresh vegetables, a process that retains their nutrients and extends their shelf life. Nutrients such as vitamins, minerals and fiber in dehydrated vegetables are not lost due to dehydration, so compared with fresh vegetables, dehydrated vegetables also have rich nutritional value. In addition, dehydrated vegetables can maintain their original flavor and texture during long-term storage, allowing people to enjoy the delicious taste of fresh vegetables at any time. The process of making dehydrated vegetables is relatively simple. You only need to wash, slice or dice fresh vegetables, and then remove the water through dehydration equipment. Dehydrated vegetables are made without any preservatives or additives, making them healthier and safer. The prepared dehydrated vegetables can be eaten directly or used in cooking, making soups, salads and other dishes, adding more choices to people's diets. The market demand for dehydrated vegetables is growing. In busy modern life, the convenience of dehydrated vegetables has become an important factor in people's choice. Whether it is outdoor sports, traveling or working in the office, people can enjoy the delicious taste of dehydrated vegetables anytime and anywhere. In addition, dehydrated vegetables can also be used as emergency food reserves in case of emergencies. In order to meet market demand, more and more f

Recently, a new semi-matt nylon 6 slice has attracted widespread attention in the textile industry. This kind of slice has become an innovation in the industry with its special semi-matte effect and excellent performance. Semi-matt nylon 6 slices are a specially treated textile material with a micro-concave-convex structure on the surface that can effectively scatter incident light, thereby achieving a semi-matt effect. This slice has a soft, low-gloss appearance in color, giving it an upscale, stylish feel. Compared with traditional nylon 6 slices, semi-matt nylon 6 slices have better optical performance and tactile feel, providing a better visual experience and comfort. Semi-matt nylon 6 slices not only have a breakthrough in appearance, but their performance has also been significantly improved. First of all, this kind of slice has high wear resistance and durability, and can withstand long-term use and washing without losing its original characteristics. Secondly, semi-matt nylon 6 slices have good air permeability and moisture permeability, and can effectively wick away sweat and keep you dry. In addition, this kind of slice also has good anti-wrinkle and anti-static properties, which can reduce discomfort and static electricity when wearing. It is reported that semi-dull nylon 6 slices have been widely used in clothing, home textiles and other fields. In terms of clothing, this kind of slice is used to make high-end fashion shirts, dresses and other products, giving people a comfortable and atmospheric feeling. In terms of home textiles, semi-matt nylon 6 slices are used in curtains, bedding and other products, which can effectively control light and provide a better sleeping environment and privacy. Industry insiders said tha

In today's materials technology industry news, a new type of bright nylon 6 slice has attracted widespread attention in the industry. Launched by a leading chemical materials manufacturer, this product is exciting for its unique performance and wide range of application prospects. Bright nylon 6 slices are a new type of engineering plastic. Its main features are high gloss, wear resistance, corrosion resistance, strong aging resistance, and excellent molding and processing properties. The launch of this product not only meets the market's demand for high-quality materials, but also provides new solutions for related industries. It is understood that this bright nylon 6 slice adopts advanced manufacturing technology and strict quality control during the production process to ensure the high quality of the product. At the same time, its unique glossiness and durability make it widely used in many fields such as automobiles, electronics, home appliances, and machinery. The manufacturer stated that the launch of bright nylon 6 slices is the company's positive response to market demand and its persistence in material technology innovation. They expect this product to be successful in the market and provide high-quality products and services to more businesses and consumers. The launch of bright nylon 6 slices has undoubtedly brought new vitality to the materials technology industry. We look forward to its future market performance and how it will promote the development of related industries. In general, the emergence of bright nylon 6 slices is a major breakthrough in material science and technology. Its application prospects are broad and will provide more possibilities for all walks of life. This is a new product worthy of our attention and anticipation.

Bright Nylon 6 Slice is a high-performance textile material with excellent strength and abrasion resistance. Compared with traditional nylon materials, it has higher tensile strength and better wear resistance, and can maintain good performance in harsh environments. This makes bright nylon 6 slices ideal for many fields such as automotive, aerospace, sports equipment, etc. In addition, bright nylon 6 chips also have excellent temperature resistance and chemical stability. It can maintain stable performance in high temperature environment, and it is not easy to deform or melt. At the same time, it has good corrosion resistance to many chemical substances and can be used in various harsh chemical environments. The glossiness of bright nylon 6 slices is also unique. It has a very smooth surface that reflects light, giving it an excellent glossy finish. This makes bright nylon 6 slices widely used in fashion and decoration fields, such as clothing, bags, household items, etc. With the continuous advancement of technology, the production process of bright nylon 6 chips is also continuously improved. Now, manufacturers can control the thickness and width of slices to meet different needs. This allows bright nylon 6 slices to be used flexibly in a variety of applications. Overall, Bright Nylon 6 slices, as an innovative textile material, has many unique features and advantages. Its strength, abrasion resistance, temperature resistance and chemical stability make it ideal for many industries. At the same time, its luster also makes it very popular in the field of fashion and decoration. With the continuous advancement of technology, the application prospect of bright nylon 6 slices will be broader.

Low-viscosity R.V2.0 Nylon 6 resin is a high-performance engineering plastic with extremely low viscosity and excellent fluidity. Compared with traditional nylon 6 resin, its melt viscosity is reduced by about 30%, thus improving the efficiency of injection molding. This means faster production speed and higher production efficiency, saving time and cost for enterprises. In addition, the low viscosity R.V2.0 nylon 6 resin also has excellent mechanical properties and chemical stability. It has high strength and rigidity, as well as good wear resistance and corrosion resistance. This makes it widely used in automotive, electronics, aerospace and other fields. For example, in automobile manufacturing, low-viscosity R.V2.0 nylon 6 resin can be used to manufacture engine parts, seat components and body structures to improve the performance and safety of automobiles. In addition, low viscosity R.V2.0 nylon 6 resin also has good high temperature resistance and weather resistance. It can maintain stable performance in high temperature environment, not easy to deform or lose strength. At the same time, it can also resist the erosion of ultraviolet radiation and chemicals, maintaining a long service life. The advent of low-viscosity R.V2.0 nylon 6 resin has brought new development opportunities for the plastics industry. It not only improves production efficiency and product quality, but also provides more possibilities for innovation in all walks of life. With the continuous advancement of technology and the expansion of application fields, it is believed that low-viscosity R.V2.0 nylon 6 resin will play a greater role in the future development and contribute to the sustainable development of society.

Plastic, one of the greatest inventions of mankind, imagines how difficult and expensive our life would be without plastic. Plastic is actually a general term for man-made plastic chemical products. In the big family of plastics, nylon is the earliest chemical synthetic fiber product. After the birth of nylon, it completely changed people's habit of using fabrics, allowing clothing and fashion to evolve in various forms, and practical and beautiful clothing also flew into the homes of ordinary people. In our impression today, flexible nylon is the darling of the women's world, but in fact its application in military and industry has also set off a storm of the times. In 1928, DuPont of the United States hired young Harvard scientist Wallace Hume Carothers (Wallace Hume Carothers) to lead a research and development team to create an organic polymer to replace natural silk. On February 28, 1935, they synthesized polyamide polymer compound. After countless attempts, Carothers finally chose to develop this polyamide polymer compound. Carothers named it "polyamide 66" (the first 6 represents the number of carbon atoms in the diamine, and the second 6 represents the number of carbon atoms in the diacid), which is the world's first synthetic fiber. Later, when it was commercially produced, it had today's name - nylon. Until today, nylon is still the fabric raw material that is often used in our daily life, and the industrial application of nylon is constantly being developed and expanded. Finding alternatives to Japanese silk raw materials Before nylon was invented, people's clothes and socks were mainly made of cotton or silk.

According to the China Securities Journal, it is reported that the public participation in the environmental impact assessment of the 100,000-ton/year nylon 66 project of PetroChina Liaoyang Petrochemical Branch is the first information disclosure. At the end of August, INVISTA joined hands with domestic companies to increase the production capacity of nylon 66 by 400,000 tons. It can be seen that the expansion of PA66 production capacity has accelerated significantly. The Securities Times pointed out that the domestic PA66 industry will usher in a window of opportunity for rapid development. According to reports, adiponitrile is the core raw material for the production of nylon 66 and a key link in the polyamide and special polyurethane industry chain. At the end of July, the 200,000-ton/year adiponitrile plant of Sinochem successfully opened up the whole process, successfully started the operation and produced high-quality adiponitrile products, which indicates that the problem of adiponitrile neck stuck is expected to become history and fills the gap in domestic technology and industry. , which complements the shortcomings of the industrial chain, and is of great significance to promoting the long-term, safe and healthy development of my country's high-end polyamide industry. The nylon 66 industry chain is expected to follow the localization of raw materials to usher in rapid expansion, and the new supply will drive the overall price center of the industry chain to move down, driving the rapid growth of downstream demand. According to the industry, the technological breakthrough of domestic nylon 66 raw material adiponitrile will be similar to the localization process of caprolactam, the main raw material of nylon 6 more than 10 years ago, and it is expected to usher in a rapid expansion of consumption after localization. In the past, caprolactam

Cailian News Agency, July 31st, my country's first set of butadiene-based adiponitrile industrial production projects using its own technology - China Chemical Tianchen Qixiang Nylon New Material Industrial Base Phase I key device recently successfully opened up the whole process. Drive successfully and produce premium products. On July 31, China National Chemical Engineering Group Co., Ltd. held a ceremony for the successful commissioning of the project in Zibo, Shandong. Experts believe that the industrialized production of self-owned butadiene-based adiponitrile is of great significance to complement the shortcomings of the industrial chain and promote the long-term, safe and healthy development of my country's high-end polyamide industry. As the first landmark project in China that adopts its own technology, solves the "stuck neck" problem of my country's high-end polyamide new material industry chain, and initiates industrial production, Sinochem has overcome many difficulties, continuously optimized technical solutions, and implemented technologies ranging from R&D, The whole life cycle management of project planning, design, investment, construction, operation and sales has achieved the successful start of the project, completely broke the foreign technology blockade and monopoly on my country's adiponitrile, filled the domestic technology and industry gap, and made up the industry The short link in the chain is of great significance to promoting the long-term, safe and healthy development of my country's high-end polyamide industry. The company has further taken solid steps in the journey of building a "comprehensive solution service provider in the field of industrial engineering, a supplier of high-end chemicals and advanced materials". . Public information shows that adiponitrile is the core raw material for the production of nylon 66,

Nylon as a gear has the advantages of light weight, fatigue resistance, impact absorption and good self lubrication. For parts that are afraid of being contaminated by lubricant or cannot be lubricated frequently, use cast nylon gear to fit. Moreover, it does not damage the corresponding gear or connecting parts, and has low noise. It has achieved remarkable results in textile, paper making, printing, machinery and other industrial applications. MC nylon (casting) or PA nylon (injection molding) is usually used to make nylon gear. MC nylon, oil-bearing nylon, with high mechanical strength, better abrasion resistance, rust resistance, aging resistance, self-lubricating, light weight, sound absorption and shock absorption, etc. The comprehensive mechanical properties are far better than ordinary engineering plastics, and it is an ideal material to replace copper, stainless steel and other non-ferrous metals. Physical properties of PA nylon: tough, abrasion resistant, oil resistant, water resistant, mildew resistant, but high water absorption Nylon 6 has good elasticity, high impact and high water absorption. The properties of nylon 66 are better than nylon 6, with high degree and good abrasion resistance. Nylon 610 is similar to nylon 66, but has low water absorption and stiffness Nylon 1010 is translucent, with small water absorption and good cold resistance. It is suitable for making general mechanical parts, antifriction parts, transmission parts and chemical, electrical, instrument and other parts.

How to choose and buy nylon sleeves and nylon tiles is still a headache? Today, the insiders of our nylon bearing manufacturers will introduce the identification methods of nylon products such as nylon sleeves and nylon bearing shells. 1. Look at the gloss first. If the material is poor, the gloss is correspondingly poor. 2. Look at the section. If the cut surface is different, the material is poor. 3. Look at the forming. The surface is not beautiful, uneven, with fiber added, which is poor material. 4. Use fire to burn, and add flame retardant if it is incombustible. Or the wave fiber exceeds 30%. It is poor material. 5. Smell the smell after burning out, 6, 66. There is little difference. If there is too much difference between the new material ratio and the new material ratio, the material quality is also correspondingly poor. 6. For wire drawing, 6 that can be drawn but does not shrink, 66 that shrinks, and poor material that cannot. 7. In case of foaming during combustion, remember that it is the foaming material that will have an impact on the re modification. Pay attention to this material. 8. Some materials contain composite materials. Please check more when looking at the large version. It is mainly identified from smell. 9. Some materials contain high temperature materials. Please try your best to get some materials for trial run, because the melting point of high temperature materials is different from that of ordinary materials, and the machine may be blocked during production, which is a poor material.

According to the report of China Securities News, it is reported that the public participation in the environmental impact assessment of the 100000 t/a nylon 66 project of PetroChina Liaoyang Petrochemical Company has been made public for the first time recently. At the end of August, Invista joined hands with domestic enterprises to increase the production capacity of nylon 66 by 400000 tons. It can be seen that PA66 capacity expansion has been significantly accelerated. Securities Times pointed out that the domestic PA66 industry will usher in a window opportunity period of rapid development. It is reported that adiponitrile is the core raw material for the production of nylon 66 and a key link in the industrial chain of polyamide and special polyurethane. At the end of July, the 200000 t/a adiponitrile unit of ChemChina successfully completed the whole process, successfully started up and produced superior adiponitrile products, which indicates that the adiponitrile neck problem is expected to become a history, filling the domestic technology and industry gap, complementing the short board of the industrial chain, and is of great significance for promoting the long-term, safe and healthy development of China's high-end polyamide industry. The nylon 66 industrial chain is expected to welcome rapid expansion following the localization of raw materials, drive the overall price center of the industrial chain to move down with new supply, and drive the rapid growth of downstream demand. According to the industry, the technical breakthrough of adipic nitrile, the raw material of nylon 66 in China, will be similar to the localization process of caprolactam, the main raw material of nylon 6 more than 10 years ago, and is expected to usher in rapid expansion of consumption after localization. In the past, caprolactam has been largely imported, which has be

Weilinna modified plastic knits today share the characteristics and processing requirements of polyamide nylon 66. Typical application range: Compared with PA6, PA66 is widely used in the automotive industry, instrument housings and other products with impact resistance and high strength requirements. Chemical and physical properties: PA66 has a high melting point. It is a semi crystalline crystalline material. PA66 can also maintain strong strength and stiffness at higher temperatures. PA66 still has hygroscopicity after molding, and its degree mainly depends on the composition of materials, wall thickness of products and environmental conditions. In product design, the influence of moisture absorption on the geometric stability of the product must be considered. In order to improve the mechanical properties of PA66, modifiers are often added. Glass fiber is the most common additive. Sometimes synthetic rubber, such as EDPM and SBR, is added to improve impact resistance. The viscosity of PA66 is low, so its fluidity is good (but not as good as PA6). This property can be used to process very thin components. Its viscosity is very sensitive to temperature changes. The shrinkage of PA66 is 1-2%, and the shrinkage can be reduced to 0.2-1% by adding glass fiber additive. The shrinkage rate has a large difference in the process direction and the vertical direction of the process. PA66 is resistant to many solvents, but is less resistant to acids and other chlorinating agents. The process conditions of the injection mold are as follows: Drying: If the material is sealed before processing, it is unnecessary to dry. If the storage container is opened, it is recommended to dry it in hot air at 85 ℃. If the humidity is greater than 0.2%, vacuum drying at 105 ℃ for 12h is also required. Melting temperature: 260-290 ℃, 275-280 ℃ for products added with glass fiber. The melting temperature shall not be higher than 300 ℃.

In terms of origin, the situation of epidemic prevention and control in Shanxi and Inner Mongolia after the festival was severe. In addition to the guaranteed supply, the turnover rate of surrounding local sales and long-distance truck transportation decreased significantly, and the synchronous transportation of Xinjiang coal was limited. At the same time, an important meeting was held. Some small and medium-sized mines in Yulin have suspended production, and the overall supply has decreased; In particular, the supply of coal in the market further contracted, and the market bullish sentiment was supported. During the centralized maintenance of Datong Qinhuangdao Line, the efficiency of cargo gathering port decreased, and the function of the port reservoir was weak. During the first half of the centralized maintenance, the daily average traffic volume of Daqin Line remained at the level of 1 million tons. Since last Friday, affected by the epidemic situation in northern Shanxi, Hudong Locomotive Depot has experienced epidemic control. As we all know, the ten thousand ton and twenty thousand ton large trains pulled by the Harmony Unit are transported back and forth between the northern Shanxi and the Qinjing Cao Port Group, becoming the bridge link between the west coal to the east and the north coal to the south; However, the crew of Harmony was not enough, which caused difficulty in personnel allocation and decreased transportation efficiency. To this end, Taiyuan Bureau set up a crew reinforcement team and a locomotive repair team to rush to the front line. The day before yesterday, the Bohai Rim Port transferred 558000 tons of coal relying on the Datong Qinhuangdao Line and the Zhangjiakou Tangshan Line, a reduction of 57% compared with the normal transport volume; Among them, there are 12 trains on the large alignment, and only one train is loaded. It is also understood that it takes a long

1. Type composition of hazardous chemical warehouse in China: 7 basic types There are seven basic types of dangerous chemical warehouse in China, namely, flat warehouse, building warehouse, three-dimensional warehouse, storage tank, cargo shed, freight yard and underground semi underground warehouse. Closing positions accounted for a large proportion, accounting for more than 50% of the total. Because of its low cost and convenient operation, it is favored by the owner; Stereoscopic warehouse is a type of warehouse that meets the requirements of modern warehousing, but the number is small at present, accounting for only about 5%; Storage tank (warehouse) is a type of warehouse that has developed rapidly in recent years in China, accounting for about 38% of the total; Cargo sheds and freight yards account for a small proportion, about 6%. Most of them are built in stations, wharves and transit warehouses, and the storage of goods is mainly chemical raw materials; Due to the safety conditions of dangerous chemicals, the number of building warehouses and underground warehouses is very small, less than 1% of the total. According to the data of the Chinese Chemical Society, there are 5000 hazardous chemical storage enterprises in China by 2020, of which 55% are mainly storage tanks, 25% are three-dimensional warehouses, 15% are closed warehouses, and 5% are other types of warehouses. 2. Development of dangerous chemicals storage technology: application of RFID technology in dangerous chemicals storage Because hazardous chemicals have flammable, explosive, toxic, harmful components corrosion and other dangerous characteristics, if they are not properly controlled in the storage process, accidents are very likely to occur. The application of RFID technology in hazardous chemicals storage improves the management ef