Long carbon chain nylon is nylon with an amide group in the main chain repeating unit of nylon molecule, and the length of methylene between the two amide groups is greater than 10. We call it long carbon chain nylon, including nylon 11, nylon 12, etc. PA12 is nylon 12, also known as polydodecactam, polylauractam, is a long carbon chain nylon. The basic material for its polymerization is butadiene, a semi-crystalline - crystalline thermoplastic material. Nylon 12 is the most widely used long carbon chain nylon, in addition to most of the general properties of nylon, low water absorption, and has high dimensional stability, high temperature resistance, corrosion resistance, good toughness, easy processing and other advantages. Compared with PA11, another long carbon chain nylon material, the price of butadiene, the raw material of PA12, is only one third of the price of castor oil, the raw material of PA11. It can replace PA11 and be applied in most scenes, and has a wide range of applications in automobile fuel pipe, air brake hose, submarine cable, 3D printing and many other fields. In long chain nylon, compared with other nylon materials, PA12 has great advantages, such as the lowest water absorption rate, the lowest density, low melting point, impact resistance, friction resistance, low temperature resistance, fuel resistance, good dimensional stability, good anti-noise effect. PA12 has the properties of PA6, PA66 and polyolefin (PE, PP) at the same time, achieving the combination of lightweight and physical and chemical properties, and has advantages in performance. There are a large number of non-polar methylene groups in nylon 12, which makes nylon 12 molecular chain more compliant. The amide group in nylon 12 is polar, and the cohesion energy is very large, it can form hydrogen bonds between the molecules, so that the molecular arrangement is regular. Therefore, nylon 12 has high crystallinity and high strength. Nylon 12 has low water absorption, good low temperature resistance, good air tightness, excellent alkali and oil resistance, medium resistance to alcohol, inorganic dilute acid and aromatic hydrocarbons, good mechanical and electrical properties, and is a self-flameout material. 1) Density The relative density of nylon 12 is only 1.01-1.03, which is the smallest among all engineering plastics, which has a certain effect on reducing the quality of vehicles and reducing fuel consumption. When compared by unit volume, nylon 12 has advantages in price and performance. 2) Melting point The melting point of nylon 12 is 172-178℃, slightly lower than nylon 11, can fully meet the requirements of automobile fuel pipe and brake pipe working environment temperature. 3) Water absorption As we all know, the biggest disadvantage of nylon products is large water absorption, dimensional stability is difficult to ensure. And PA12 has the lowest water absorption rate of nylon products, this is due to the methylene molecules in nylon 12 greatly reduce the hydrophilic groups, which makes nylon 12 has a great advantage. 4) Impact strength Impact strength is an important technical index, especially for nylon 12 pipe often exposed to air. Nylon 12 under -20℃ and -40℃ according to the standard test, no fracture phenomenon, fully meet the requirements of use. Nylon 12 has excellent impact resistance. 5) Low temperature performance Nylon 12 has the lowest brittleness temperature of -70 degrees Celsius, so it can be widely used in low-temperature resistant parts. 6) Flexibility The influence of plasticizer on the physical properties of nylon 12 is concentrated on the elastic modulus of resin. Nylon 12 has three basic types of resin, their main difference is due to the plasticizer content of different forms of flexibility. The elastic modulus of resin decreases with the increase of extractable component content of plasticizer. 7) Low wear and low friction performance Nylon 12 has excellent low abrasion and low friction properties and self lubricating properties, so the friction noise of nylon 12 products is very low. 8) Fuel resistance In automobiles, the mixture of oxygenated fuel, high aromatic fuel and alcohol currently used can cause the breakdown of many hose materials. After the test, only nylon 11, nylon 12 and fluorocarbon resin elastomers can be used in this environment. Almost other types of nylon melt under the action of automobile fuel, resulting in a change in size. 9) Resistance to zinc chloride solution Zinc chloride is found under the car. Under certain temperature and humidity, the salt on the road reacts with galvanized steel plate or zinc-containing primer to form the corrosive zinc chloride. In addition, ozone aging, ultraviolet radiation, temperature conditions and so on, will bring different degrees of damage to the parts, reduce the service life. Nylon 12 is very resistant to zinc chloride solution. Because there is no unsaturated double bond in nylon 12 which is susceptible to ozone attack, ozone ...

polyamide (PA), usually called Nylon, is a hetero-chain polymer containing amide group (-NHCo -) in the main chain. It can be divided into aliphatic group and aromatic group. It is the earliest developed and the most used thermoplastic engineering material.

PA6 material PA6 is one of the most widely used materials in the current field, and PA6 is a very good engineering plastic with balanced and good performance. The raw materials for the manufacture of nylon 6 engineering plastic are extensive and inexpensive, and it is not restricted by the technological monopoly of foreign companies. However, in order to make good use of this inexpensive and excellent material, we must first understand it. Today, we will start with glass fiber reinforced PA6 engineering plastics, because it is the most important category of PA6 engineering plastics. Just like any other engineering plastics, PA6 has advantages and disadvantages, such as high water absorption, low temperature impact toughness and dimensional stability is relatively poor. So engineers will use different methods to make PA6 better, which we call modification. At present, the most common method is to blend and modify PA6 with glass fiber (GF). Today, we will take a look at the mechanical properties of PA6 engineering plastics under the glass fiber GF system for reference and help us select materials. PA6-LGF 1. Influence of glass fiber content on PA6 engineering plastics We can find from the application and experiment that the content index is often one of the biggest influencing factors in fiber reinforced composites. As the glass fiber content increases, the number of glass fibers per unit area of the material will increase, which means that the PA6 matrix between the glass fibers will become thinner. This change determines the impact toughness, tensile strength, bending strength and other mechanical properties of glass fiber reinforced PA6 composites. In terms of impact performance, the increase of glass fiber content will greatly increase the notch impact strength of PA6. Taking long glass fiber (LGF) filling PA6 as an example, when the filling volume increases to 35%, the notch impact strength will increase from 24.8J/m to 128.5J/m. But the glass fiber content is not more is better, short glass fiber (SGF) filling volume reached 42%, the impact strength of the material reached the highest 17.4kJ/㎡, but continue to add will let the gap impact strength showed a downward trend. In terms of bending strength, the increase of the amount of glass fiber will make the bending stress can be transferred between the glass fiber through the resin layer; At the same time, when the glass fiber is extracted from the resin or broken, it will absorb a lot of energy, thus improving the bending strength of the material. The above theory is verified by experiments. The data show that the bending elastic modulus increases to 4.99GPa when the LGF (long glass fiber) is filled to 35%. When the content of SGF (short glass fiber) is 42%, the bending elastic modulus reaches 10410MPa, which is about 5 times that of pure PA6. 2. Influence of glass fiber retention length on PA6 composites The fiber length of the glass fiber also has an obvious effect on the mechanical properties of the material. When the length of the glass fiber is less than the critical length (the length of the fiber when the material has the tensile strength of the fiber), the interface binding area of the glass fiber and the resin increases with the increase of the length of the glass fiber. When the composite material is broken, the resistance of the glass fiber from the resin is also greater, so as to improve the ability to withstand the tensile load. When the length of glass fiber exceeds the critical, the longer glass fiber can absorb more impact energy under impact load. In addition, the end of the glass fiber is the initiation point of crack growth, and the number of long glass fiber ends is relatively less, and the impact strength can be significantly improved. The experimental results show that the tensile strength of the material increases from 154.8MPa to 164.4MPa when the glass fiber content is kept at 40% and the length of the glass fiber increases from 4mm to 13mm. The bending strength and notched impact strength increased by 24% and 28%, respectively. Moreover, the research shows that when the original length of the glass fiber is less than 7mm, the material performance increases more obviously. Compared with short glass fiber, long glass fiber reinforced PA6 material has better appearance warping resistance, and can better maintain mechanical properties under high temperature and humidity conditions. TDS for your reference PA6 can be made into long glass fiber reinforced material by adding 20%-60% long glass fiber according to the characteristics of the product. PA6 with long glass fiber added has better strength, heat resistance, impact resistance, dimensional stability and warping resistance than without glass fiber added. Following TDS show the data of PA6-LGF30. Application PA6-LGF has the largest proportion of applications in the automotive industry, by electronic and electrical applications, and also involving machinery and engineering ...

What is the PPS? Polyphenylene sulfide (PPS) is a new thermoplastic resin with high performance. By filling, modified with excellent high temperature resistance, corrosion resistance, wear resistance, flame retardant, balanced physical and mechanical properties and excellent dimensional stability and excellent electrical properties and other characteristics of the new high performance thermoplastic resin, as well as high mechanical strength, chemical resistance, flame resistance, good thermal stability, excellent electrical properties and other advantages. It has the advantages of hard and brittle, high crystallinity, inflammability, good thermal stability, high mechanical strength, excellent electrical properties, strong chemical corrosion resistance and so on. The mechanical properties of pure PPS are not high, especially the impact strength is relatively low. Good creep resistance under load, high hardness; High wear resistance, the wear at 1000 RPM is only 0.04g, and will be further improved after filling F4 and molybdenum disulfide; It also has a certain degree of self-moistening. The mechanical properties of PPS are less sensitive to temperature. What is the PPS-LGF? PPS is one of the best varieties of heat resistance in the engineering plastic department. The thermal deformation temperature of the material modified by glass fiber is generally greater than 260 degrees, and the chemical resistance is second only to PTFE. In addition, it also has small shrinkage, low water absorption, good fire resistance. Good resistance to vibration fatigue, strong resistance to arc, especially at high temperature. Excellent electrical insulation in high humidity. But its disadvantages are brittleness, toughness, low impact strength, after modification, can overcome the above shortcomings, obtain very excellent comprehensive performance. As a plastic, its properties and uses far exceed those of ordinary plastics, and in many ways it is as good as metal materials. Excellent material PPS has the advantages of high temperature corrosion resistance, excellent mechanical properties, can replace metal including stainless steel, copper, aluminum, alloy, etc., is considered to be the best substitute for metal, copper. What is the application of PPS-LGF? PPS is now widely used in automotive, aerospace, household appliances, mechanical construction and chemical industry for a variety of structural parts, transmission parts, insulation parts, corrosion resistant parts and seals. Under the condition of ensuring sufficient strength and other properties, the weight of the product is greatly reduced. Datasheet for reference Details Number Color Length MOQ Package Sample Delivery time Port of Loading PPS-NA-LGF30 Original color (can be customized) 5-25mm above 25kg 25kg/bag Available 7-15 days after shipment Xiamen Poer Production process Trademarks and patents Teams and customers We will offer you: 1. LFT & LFRT material technical parameters and leading edge design 2. Mold front design and recommendations 3. Provide technical support such as injection molding and extrusion molding.

PEEK plastic PEEK is a comprehensive performance of excellent special engineering plastics, with excellent heat resistance, chemical resistance, radiation resistance, electrical properties, flame retardant properties, etc.. Its molecular chain is a polymer composed of a benzene ring and connected ketone and ether groups, and the benzene ring ensures that PEEK materials have good rigidity, and the ether bond ensures that PEEK has good toughness, so that PEEK is a comprehensive material with both toughness and rigidity. PEEK has the following outstanding properties: (1) Extremely high heat resistance. Can be used at 250 ° C for a long time, instantaneous use of the temperature up to 300 ° C, at 400 ° C for a short period of time almost no decomposition. (2) excellent mechanical properties and dimensional stability. PEEK can maintain high strength at high temperatures, bending strength at 200°C is still up to 24 MPa, 250°C bending strength and compression strength of up to 12-13 MPa, especially suitable for manufacturing at high temperatures can work continuously in the components. In addition, PEEK also has good creep resistance, can be used in the period of great stress, not due to the extension of time to produce significant extension. (3) Excellent chemical resistance. Even at high temperatures PEEK resists corrosion of most chemicals very well, with corrosion resistance similar to that of nickel steel. The only thing that can dissolve PEEK under normal conditions is concentrated sulfuric acid. (4) Good resistance to hydrolysis. Can resist chemical damage from water or high-pressure water vapor. Under high temperature and pressure conditions, PEEK components can work continuously in aqueous environments while still maintaining good mechanical properties. If immersed in water at 100 ° C for 200 days, the strength remains almost unchanged. (5) Good flame retardant properties. It can reach UL 94 V-0 level, has self-extinguishing property, and releases less smoke and toxic gas under flame condition. (6) Good electrical properties. In a wide range of frequencies and temperatures, PEEK can maintain the same electrical properties. (7) High radiation resistance. PEEK has a very stable chemical structure, in high doses of ionizing radiation PEEK parts can also work properly. (8) Good toughness. Fatigue resistance to alternating stress is the most outstanding of all plastics, comparable to alloy materials. (9) Excellent resistance to friction and wear. It can maintain high wear resistance and low friction coefficient at 250°C. (10) Good processing performance. Easy to injection molding and high molding efficiency. PEEK-LCF compounds Long carbon fiber modified PEEK materials at room temperature, the tensile strength doubled compared to unreinforced, reaching three times at 150°C. At the same time, the reinforced composites also received a substantial increase in impact strength, flexural strength and modulus, with a dramatic reduction in elongation and heat deflection temperatures that can exceed 300°C. The impact energy absorption rate of the composites directly affects the performance of the composites when subjected to impact, and carbon fiber-reinforced peek composites show a specific energy absorption capacity of up to 180 kJ/kg. Application Long carbon fiber modified peek materials are widely used in the fields of aerospace, automotive manufacturing, electrical and electronics, medical and food processing. For example, applied to orthopedic medical devices, thanks to carbon fiber-reinforced PEEK used in orthopedics five major performance advantages: light weight and strength, wear resistance, good biocompatibility, corrosion resistance, good X-ray permeability, it can be done intramedullary nailing PEEK aiming rod bracket, distal locking with PEEK aiming frame, external fixation bracket with X-ray permeable PEEK heel linkage (spark surface), minimally invasive PEEK guided tail (aiming rod), etc. TDS for reference Different properties with different fiber specification The content of long fiber is not more is better. The suitable content is just to meet the requirements of each products. Produce process Our materials are suitable for injection molding and extrusion molding. Parts of Certifications Quality Management System ISO9001/16949 Certification National Laboratory Accreditation Certificate Modified Plastics Innovation Enterprise Honorary Certificate Heavy metal REACH & ROHS testing Q & A Q. Does long glass fiber and long carbon fiber injection have special requirements for injection molding machines and molds? A. There are certainly requirements. Especially from the product design structure, as well as the injection molding machine screw nozzle and mold structure injection molding process must consider the requirements of long fiber. Q. What are the differences and advantages of long fiber materials and thermosets and staple fibers? A. Compared with the short fiber, is has more excellent performanc...

PA6 material PA6 is one of the most widely used materials in the current field, and PA6 is a very good engineering plastic with balanced and good performance. The raw materials for the manufacture of nylon 6 engineering plastic are extensive and inexpensive, and it is not restricted by the technological monopoly of foreign companies. However, in order to make good use of this inexpensive and excellent material, we must first understand it. Today, we will start with glass fiber reinforced PA6 engineering plastics, because it is the most important category of PA6 engineering plastics. Just like any other engineering plastics, PA6 has advantages and disadvantages, such as high water absorption, low temperature impact toughness and dimensional stability is relatively poor. So engineers will use different methods to make PA6 better, which we call modification. At present, the most common method is to blend and modify PA6 with glass fiber (GF). Today, we will take a look at the mechanical properties of PA6 engineering plastics under the glass fiber GF system for reference and help us select materials. PA6-LGF 1. Influence of glass fiber content on PA6 engineering plastics We can find from the application and experiment that the content index is often one of the biggest influencing factors in fiber reinforced composites. As the glass fiber content increases, the number of glass fibers per unit area of the material will increase, which means that the PA6 matrix between the glass fibers will become thinner. This change determines the impact toughness, tensile strength, bending strength and other mechanical properties of glass fiber reinforced PA6 composites. In terms of impact performance, the increase of glass fiber content will greatly increase the notch impact strength of PA6. Taking long glass fiber (LGF) filling PA6 as an example, when the filling volume increases to 35%, the notch impact strength will increase from 24.8J/m to 128.5J/m. But the glass fiber content is not more is better, short glass fiber (SGF) filling volume reached 42%, the impact strength of the material reached the highest 17.4kJ/㎡, but continue to add will let the gap impact strength showed a downward trend. In terms of bending strength, the increase of the amount of glass fiber will make the bending stress can be transferred between the glass fiber through the resin layer; At the same time, when the glass fiber is extracted from the resin or broken, it will absorb a lot of energy, thus improving the bending strength of the material. The above theory is verified by experiments. The data show that the bending elastic modulus increases to 4.99GPa when the LGF (long glass fiber) is filled to 35%. When the content of SGF (short glass fiber) is 42%, the bending elastic modulus reaches 10410MPa, which is about 5 times that of pure PA6. 2. Influence of glass fiber retention length on PA6 composites The fiber length of the glass fiber also has an obvious effect on the mechanical properties of the material. When the length of the glass fiber is less than the critical length (the length of the fiber when the material has the tensile strength of the fiber), the interface binding area of the glass fiber and the resin increases with the increase of the length of the glass fiber. When the composite material is broken, the resistance of the glass fiber from the resin is also greater, so as to improve the ability to withstand the tensile load. When the length of glass fiber exceeds the critical, the longer glass fiber can absorb more impact energy under impact load. In addition, the end of the glass fiber is the initiation point of crack growth, and the number of long glass fiber ends is relatively less, and the impact strength can be significantly improved. The experimental results show that the tensile strength of the material increases from 154.8MPa to 164.4MPa when the glass fiber content is kept at 40% and the length of the glass fiber increases from 4mm to 13mm. The bending strength and notched impact strength increased by 24% and 28%, respectively. Moreover, the research shows that when the original length of the glass fiber is less than 7mm, the material performance increases more obviously. Compared with short glass fiber, long glass fiber reinforced PA6 material has better appearance warping resistance, and can better maintain mechanical properties under high temperature and humidity conditions. TDS for your reference PA6 can be made into long glass fiber reinforced material by adding 20%-60% long glass fiber according to the characteristics of the product. PA6 with long glass fiber added has better strength, heat resistance, impact resistance, dimensional stability and warping resistance than without glass fiber added. Following TDS show the data of PA6-LGF30. Application PA6-LGF has the largest proportion of applications in the automotive industry, by electronic and electrical applications, and also involving machinery and engineering ...

What is the PPS? Polyphenylene sulfide (PPS) is a new thermoplastic resin with high performance. By filling, modified with excellent high temperature resistance, corrosion resistance, wear resistance, flame retardant, balanced physical and mechanical properties and excellent dimensional stability and excellent electrical properties and other characteristics of the new high performance thermoplastic resin, as well as high mechanical strength, chemical resistance, flame resistance, good thermal stability, excellent electrical properties and other advantages. It has the advantages of hard and brittle, high crystallinity, inflammability, good thermal stability, high mechanical strength, excellent electrical properties, strong chemical corrosion resistance and so on. The mechanical properties of pure PPS are not high, especially the impact strength is relatively low. Good creep resistance under load, high hardness; High wear resistance, the wear at 1000 RPM is only 0.04g, and will be further improved after filling F4 and molybdenum disulfide; It also has a certain degree of self-moistening. The mechanical properties of PPS are less sensitive to temperature. What is the PPS-LGF? PPS is one of the best varieties of heat resistance in the engineering plastic department. The thermal deformation temperature of the material modified by glass fiber is generally greater than 260 degrees, and the chemical resistance is second only to PTFE. In addition, it also has small shrinkage, low water absorption, good fire resistance. Good resistance to vibration fatigue, strong resistance to arc, especially at high temperature. Excellent electrical insulation in high humidity. But its disadvantages are brittleness, toughness, low impact strength, after modification, can overcome the above shortcomings, obtain very excellent comprehensive performance. As a plastic, its properties and uses far exceed those of ordinary plastics, and in many ways it is as good as metal materials. Excellent material PPS has the advantages of high temperature corrosion resistance, excellent mechanical properties, can replace metal including stainless steel, copper, aluminum, alloy, etc., is considered to be the best substitute for metal, copper. What is the application of PPS-LGF? PPS is now widely used in automotive, aerospace, household appliances, mechanical construction and chemical industry for a variety of structural parts, transmission parts, insulation parts, corrosion resistant parts and seals. Under the condition of ensuring sufficient strength and other properties, the weight of the product is greatly reduced. Datasheet for reference Details Number Color Length MOQ Package Sample Delivery time Port of Loading PPS-NA-LGF30 Original color (can be customized) 5-25mm above 25kg 25kg/bag Available 7-15 days after shipment Xiamen Poer Production process Trademarks and patents Teams and customers We will offer you: 1. LFT & LFRT material technical parameters and leading edge design 2. Mold front design and recommendations 3. Provide technical support such as injection molding and extrusion molding.

What is the PPS? Polyphenylene sulfide (PPS) is a new thermoplastic resin with high performance. By filling, modified with excellent high temperature resistance, corrosion resistance, wear resistance, flame retardant, balanced physical and mechanical properties and excellent dimensional stability and excellent electrical properties and other characteristics of the new high performance thermoplastic resin, as well as high mechanical strength, chemical resistance, flame resistance, good thermal stability, excellent electrical properties and other advantages. It has the advantages of hard and brittle, high crystallinity, inflammability, good thermal stability, high mechanical strength, excellent electrical properties, strong chemical corrosion resistance and so on. The mechanical properties of pure PPS are not high, especially the impact strength is relatively low. Good creep resistance under load, high hardness; High wear resistance, the wear at 1000 RPM is only 0.04g, and will be further improved after filling F4 and molybdenum disulfide; It also has a certain degree of self-moistening. The mechanical properties of PPS are less sensitive to temperature. What is the PPS-LGF? PPS is one of the best varieties of heat resistance in the engineering plastic department. The thermal deformation temperature of the material modified by glass fiber is generally greater than 260 degrees, and the chemical resistance is second only to PTFE. In addition, it also has small shrinkage, low water absorption, good fire resistance. Good resistance to vibration fatigue, strong resistance to arc, especially at high temperature. Excellent electrical insulation in high humidity. But its disadvantages are brittleness, toughness, low impact strength, after modification, can overcome the above shortcomings, obtain very excellent comprehensive performance. As a plastic, its properties and uses far exceed those of ordinary plastics, and in many ways it is as good as metal materials. Excellent material PPS has the advantages of high temperature corrosion resistance, excellent mechanical properties, can replace metal including stainless steel, copper, aluminum, alloy, etc., is considered to be the best substitute for metal, copper. What is the application of PPS-LGF? PPS is now widely used in automotive, aerospace, household appliances, mechanical construction and chemical industry for a variety of structural parts, transmission parts, insulation parts, corrosion resistant parts and seals. Under the condition of ensuring sufficient strength and other properties, the weight of the product is greatly reduced. Datasheet for reference Details Number Color Length MOQ Package Sample Delivery time Port of Loading PPS-NA-LGF30 Original color (can be customized) 5-25mm above 25kg 25kg/bag Available 7-15 days after shipment Xiamen Poer Production process Trademarks and patents Teams and customers We will offer you: 1. LFT & LFRT material technical parameters and leading edge design 2. Mold front design and recommendations 3. Provide technical support such as injection molding and extrusion molding.

PA6 material PA6 is one of the most widely used materials in the current field, and PA6 is a very good engineering plastic with balanced and good performance. The raw materials for the manufacture of nylon 6 engineering plastic are extensive and inexpensive, and it is not restricted by the technological monopoly of foreign companies. However, in order to make good use of this inexpensive and excellent material, we must first understand it. Today, we will start with glass fiber reinforced PA6 engineering plastics, because it is the most important category of PA6 engineering plastics. Just like any other engineering plastics, PA6 has advantages and disadvantages, such as high water absorption, low temperature impact toughness and dimensional stability is relatively poor. So engineers will use different methods to make PA6 better, which we call modification. At present, the most common method is to blend and modify PA6 with glass fiber (GF). Today, we will take a look at the mechanical properties of PA6 engineering plastics under the glass fiber GF system for reference and help us select materials. PA6-LGF 1. Influence of glass fiber content on PA6 engineering plastics We can find from the application and experiment that the content index is often one of the biggest influencing factors in fiber reinforced composites. As the glass fiber content increases, the number of glass fibers per unit area of the material will increase, which means that the PA6 matrix between the glass fibers will become thinner. This change determines the impact toughness, tensile strength, bending strength and other mechanical properties of glass fiber reinforced PA6 composites. In terms of impact performance, the increase of glass fiber content will greatly increase the notch impact strength of PA6. Taking long glass fiber (LGF) filling PA6 as an example, when the filling volume increases to 35%, the notch impact strength will increase from 24.8J/m to 128.5J/m. But the glass fiber content is not more is better, short glass fiber (SGF) filling volume reached 42%, the impact strength of the material reached the highest 17.4kJ/㎡, but continue to add will let the gap impact strength showed a downward trend. In terms of bending strength, the increase of the amount of glass fiber will make the bending stress can be transferred between the glass fiber through the resin layer; At the same time, when the glass fiber is extracted from the resin or broken, it will absorb a lot of energy, thus improving the bending strength of the material. The above theory is verified by experiments. The data show that the bending elastic modulus increases to 4.99GPa when the LGF (long glass fiber) is filled to 35%. When the content of SGF (short glass fiber) is 42%, the bending elastic modulus reaches 10410MPa, which is about 5 times that of pure PA6. 2. Influence of glass fiber retention length on PA6 composites The fiber length of the glass fiber also has an obvious effect on the mechanical properties of the material. When the length of the glass fiber is less than the critical length (the length of the fiber when the material has the tensile strength of the fiber), the interface binding area of the glass fiber and the resin increases with the increase of the length of the glass fiber. When the composite material is broken, the resistance of the glass fiber from the resin is also greater, so as to improve the ability to withstand the tensile load. When the length of glass fiber exceeds the critical, the longer glass fiber can absorb more impact energy under impact load. In addition, the end of the glass fiber is the initiation point of crack growth, and the number of long glass fiber ends is relatively less, and the impact strength can be significantly improved. The experimental results show that the tensile strength of the material increases from 154.8MPa to 164.4MPa when the glass fiber content is kept at 40% and the length of the glass fiber increases from 4mm to 13mm. The bending strength and notched impact strength increased by 24% and 28%, respectively. Moreover, the research shows that when the original length of the glass fiber is less than 7mm, the material performance increases more obviously. Compared with short glass fiber, long glass fiber reinforced PA6 material has better appearance warping resistance, and can better maintain mechanical properties under high temperature and humidity conditions. TDS for your reference PA6 can be made into long glass fiber reinforced material by adding 20%-60% long glass fiber according to the characteristics of the product. PA6 with long glass fiber added has better strength, heat resistance, impact resistance, dimensional stability and warping resistance than without glass fiber added. Following TDS show the data of PA6-LGF30. Application PA6-LGF has the largest proportion of applications in the automotive industry, by electronic and electrical applications, and also involving machinery and engineering ...

PA6 material PA6 is one of the most widely used materials in the current field, and PA6 is a very good engineering plastic with balanced and good performance. The raw materials for the manufacture of nylon 6 engineering plastic are extensive and inexpensive, and it is not restricted by the technological monopoly of foreign companies. However, in order to make good use of this inexpensive and excellent material, we must first understand it. Today, we will start with glass fiber reinforced PA6 engineering plastics, because it is the most important category of PA6 engineering plastics. Just like any other engineering plastics, PA6 has advantages and disadvantages, such as high water absorption, low temperature impact toughness and dimensional stability is relatively poor. So engineers will use different methods to make PA6 better, which we call modification. At present, the most common method is to blend and modify PA6 with glass fiber (GF). Today, we will take a look at the mechanical properties of PA6 engineering plastics under the glass fiber GF system for reference and help us select materials. PA6-LGF 1. Influence of glass fiber content on PA6 engineering plastics We can find from the application and experiment that the content index is often one of the biggest influencing factors in fiber reinforced composites. As the glass fiber content increases, the number of glass fibers per unit area of the material will increase, which means that the PA6 matrix between the glass fibers will become thinner. This change determines the impact toughness, tensile strength, bending strength and other mechanical properties of glass fiber reinforced PA6 composites. In terms of impact performance, the increase of glass fiber content will greatly increase the notch impact strength of PA6. Taking long glass fiber (LGF) filling PA6 as an example, when the filling volume increases to 35%, the notch impact strength will increase from 24.8J/m to 128.5J/m. But the glass fiber content is not more is better, short glass fiber (SGF) filling volume reached 42%, the impact strength of the material reached the highest 17.4kJ/㎡, but continue to add will let the gap impact strength showed a downward trend. In terms of bending strength, the increase of the amount of glass fiber will make the bending stress can be transferred between the glass fiber through the resin layer; At the same time, when the glass fiber is extracted from the resin or broken, it will absorb a lot of energy, thus improving the bending strength of the material. The above theory is verified by experiments. The data show that the bending elastic modulus increases to 4.99GPa when the LGF (long glass fiber) is filled to 35%. When the content of SGF (short glass fiber) is 42%, the bending elastic modulus reaches 10410MPa, which is about 5 times that of pure PA6. 2. Influence of glass fiber retention length on PA6 composites The fiber length of the glass fiber also has an obvious effect on the mechanical properties of the material. When the length of the glass fiber is less than the critical length (the length of the fiber when the material has the tensile strength of the fiber), the interface binding area of the glass fiber and the resin increases with the increase of the length of the glass fiber. When the composite material is broken, the resistance of the glass fiber from the resin is also greater, so as to improve the ability to withstand the tensile load. When the length of glass fiber exceeds the critical, the longer glass fiber can absorb more impact energy under impact load. In addition, the end of the glass fiber is the initiation point of crack growth, and the number of long glass fiber ends is relatively less, and the impact strength can be significantly improved. The experimental results show that the tensile strength of the material increases from 154.8MPa to 164.4MPa when the glass fiber content is kept at 40% and the length of the glass fiber increases from 4mm to 13mm. The bending strength and notched impact strength increased by 24% and 28%, respectively. Moreover, the research shows that when the original length of the glass fiber is less than 7mm, the material performance increases more obviously. Compared with short glass fiber, long glass fiber reinforced PA6 material has better appearance warping resistance, and can better maintain mechanical properties under high temperature and humidity conditions. TDS for your reference PA6 can be made into long glass fiber reinforced material by adding 20%-60% long glass fiber according to the characteristics of the product. PA6 with long glass fiber added has better strength, heat resistance, impact resistance, dimensional stability and warping resistance than without glass fiber added. Following TDS show the data of PA6-LGF30. Application PA6-LGF has the largest proportion of applications in the automotive industry, by electronic and electrical applications, and also involving machinery and engineering ...