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Long carbon fiber Reinforced Polyamide nylon PA6

/Injection grade PA6 Long Carbon Fiber40 high strength Nylon6 for manufacturing helmets

Injection grade PA6 Long Carbon Fiber40 high strength Nylon6 for manufacturing helmets

Fiber filling: 20%-60%

Feature: High toughness, Light weight, High strength, Wear reisistance, Corrosion resistance, Creep resistance, Conduction, Heat transfer.

  • item no.:

    PA6-NA-LCF40
  • Payment:

    T/T or L/C (other payment ways also can be di
  • product origin:

    Xiamen, China
  • Color:

    Original color (also can be customized)
  • shipping port:

    Xiamen, China
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Product Detail

Introduction of PA6


Nylon 6(PA6), also known as polyamide 6, has good mechanical strength and crystallization, and has the characteristics of corrosion resistance, wear resistance, etc., in the automobile industry, rail transit, film packaging, electronic appliances and textile and other major fields to achieve a wide range of applications.

Although its comprehensive performance is excellent, it also has a series of shortcomings, such as PA6 does not have strong acid and alkali resistance, low impact strength at low temperature and dry state, and its hydrophilic base will cause a high water absorption rate, and the elastic modulus, creep resistance, impact strength and so on will be greatly reduced after water absorption, thus affecting the dimensional stability of products and the electrical properties of products.

Therefore, modification research on pa6 is needed.



The drying treatment of PA6 for injection molding is easy to absorb water, so it must be attached great importance to the drying treatment before the actual processing. If the material is exposed to the air for at least 8h, it should be dried at 105℃ for more than 8h.



■ Study on modification of PA6


1. Enhanced modification

Due to the existence of hydrogen bonds in PA6 molecules, its flexibility and strength will inevitably be affected. With the increase of hydrogen bond density, the mechanical strength of PA6 will be correspondingly increased.

The more carbon atoms there are, the longer the flexible chain, the more resilient it is. The mechanical properties of PA6 composites can be enhanced by adding glass fiber.

The tetragonal zno whisker has a very high tidiness. Based on this, the results of the study on the enhancement effect of the zno whisker on the casting PA show that the composite has the highest tensile strength when the whisker content is 5%, and increasing the whisker content will reduce the heat resistance and water absorption of the material.

The fly ash was treated with silane coupling agent and then filled into the cast PA6 product for modification. The final product had better thermal stability, shrinkage rate and water absorption.




2. Flame retardant modification

The oxygen index of PA6 is 26.4, which is flammable material.

National laws and regulations clearly require the flame retardancy of polymer materials, so it is necessary to attach great importance to the flame retardancy modification of PA6 when it is used in electricity-related products.

The flame retardancy of aluminum hypophosphate is relatively good in the materials prepared by blending various metal hypophosphate salts with PA6. When the content of aluminum hypophosphate is 18%, the burning loss of the material can reach 25, and UL94 can reach V-0 grade.

Melamine cyanuric acid (MCA) modified with red phosphorus can be used as the flame retardant of PA6. Red phosphorus can hinder the formation of large planar hydrogen bond network between melamine and cyanuric acid, thus refining MCA, and MCA can form carbon under the action of red phosphorus. Therefore, modified MCA can play a flame retardant role in the condensation phase and gas phase, which is conducive to the improvement of flame retardant property of PA6.

The limiting oxygen index (LOI) of the composite was improved by adding guanidine sulfonic acid into PA6 matrix by melt blending method. The vertical combustion test showed that the yield of molten droplets was significantly reduced compared with that of pure PA6 when the addition of guanidine sulfonic acid was 3%, and the grade of UL94 was increased to V-0 when the addition of Guanidine sulfonic acid was not less than 5%.




3. Toughening modification

The toughened and modified PA can be obtained by adding the ductile resin or elastomer to the PA resin and then blending and extrusion.

When the toughening agent is polarized SBS, the toughening blend system of polarized SBS and PA6 is obtained by mechanical melting blending method. When the amount of polarized SBS is increased, the notch impact strength of the system and the flexibility of the material will also be improved.

Compared with PA6 and EPDM composites, EPDM grafted with maleic anhydride has better rubber and plastic compatibility and higher toughness.

When the dosage of EPDM grafted with maleic anhydride was 15%, the blended material had 9 times more notched impact strength than PA6 material.




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