Glass fiber enhanced PA66 base plate material for high speed rail and preparation method thereof

A high-speed rail and track technology, applied in the field of glass fiber reinforced PA66 high-speed rail substrate material and its preparation, can solve the problem that the product is difficult to meet the requirements of safety and high stability, reduce material rigidity, aging resistance, and extrude granulation is easy to fluctuate and other problems, to achieve the effect of high appearance quality, improved water absorption and dimensional stability, excellent processing performance and mechanical properties

Active Publication Date: 2019-01-11
GUANGDONG SHUNDE SHUNYAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ability of additives to improve the surface problems of products is limited, and the addition of too many low-molecular-weight substances will reduce the rigidity and aging resistance of the material. Differences, easy to fluctuate during extrusion and granulation, these many unstable factors make it difficult for the product to meet the requirements of safety and high stability
The adoption of special production techniques and equipment will lead to higher production costs

Method used

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  • Glass fiber enhanced PA66 base plate material for high speed rail and preparation method thereof
  • Glass fiber enhanced PA66 base plate material for high speed rail and preparation method thereof
  • Glass fiber enhanced PA66 base plate material for high speed rail and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, glass fiber reinforced PA66 high-speed rail track substrate material of the present invention and its preparation

[0030] formula:

[0031] PA66 resin (relative viscosity 2.0-2.2) 29.1kg, PA6T resin (relative viscosity 2.6-2.8) 10.0kg, antioxidant (composed of antioxidant 1010 and antioxidant 1098 in a weight ratio of 2:1) 0.6kg , 0.3 kg of silicone, 8.0 kg of 2000-mesh glass beads, 1.0 kg of toughening agent POE, 51.0 kg of alkali-free chopped glass fibers (5.0-8.0 mm in length, 10-14 μm in diameter).

[0032] Preparation:

[0033] S1. Put the PA66 resin and PA6T resin of the formula into the high mixer, and stir for 10 minutes at a rotation speed of 500r / min to obtain a mixed resin;

[0034]S2. Premix the antioxidant, silicone, glass microspheres, toughening agent POE and alkali-free chopped glass fiber for 5 minutes, then put it into the mixed resin, and stir for 10 minutes at a speed of 1000r / min , get the premix;

[0035] S3. Transfer the premixe...

Embodiment 2

[0036] Embodiment 2, glass fiber reinforced PA66 high-speed rail track substrate material of the present invention and its preparation

[0037] formula:

[0038] PA66 resin (relative viscosity 2.0-2.2) 33.5kg, PA6T resin (relative viscosity 2.6-2.8) 5.0kg, antioxidant (composed of antioxidant 1010 and antioxidant 1098 in a weight ratio of 3:1) 1.0kg , 0.5 kg of OP wax, 9.0 kg of 2000-mesh glass beads, 2.0 kg of toughening agent POE, 49.0 kg of alkali-free chopped glass fibers (5.0-8.0 mm in length, 10-14 μm in diameter).

[0039] Preparation:

[0040] S1. Put the PA66 resin and PA6T resin of the formula into the high mixer, and stir for 5 minutes at a rotation speed of 800r / min to obtain a mixed resin;

[0041] S2. Premix the antioxidant, OP wax, glass microspheres, toughening agent POE and alkali-free chopped glass fiber for 10 minutes, then put them into the mixed resin, and stir for 15 minutes at a speed of 1500r / min , get the premix;

[0042] S3. Transfer the premixed ...

Embodiment 3

[0043] Embodiment 3, glass fiber reinforced PA66 high-speed rail track substrate material of the present invention and its preparation

[0044] formula:

[0045] PA66 resin (relative viscosity 2.0-2.2) 32.3kg, PA6T resin (relative viscosity 2.6-2.8) 8.0kg, antioxidant (composed of antioxidant 1010 and antioxidant 1098 at a weight ratio of 2.5:1) 0.8kg , 0.4 kg of OP wax, 7.0 kg of 2000-mesh glass beads, 1.5 kg of toughening agent POE, 50.0 kg of alkali-free chopped glass fibers (5.0-8.0 mm in length, 10-14 μm in diameter).

[0046] Preparation:

[0047] S1. Put the PA66 resin and PA6T resin of the formula into the high mixer, and stir for 10min at a speed of 600r / min to obtain a mixed resin;

[0048] S2. Premix the antioxidant, OP wax, glass microspheres, toughening agent POE and alkali-free chopped glass fiber for 10 minutes, then put them into the mixed resin, and stir for 10 minutes at a speed of 1500r / min , get the premix;

[0049] S3. Transfer the premixed material in...

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Abstract

The invention belongs to the technical field of high molecular materials and in particular relates to a glass fiber enhanced PA66 base plate material for a high speed rail and a preparation method thereof. The glass fiber enhanced PA66 base plate material for the high speed rail is prepared from the following preparation raw materials in percent by weight: 28.0-34.0% of PA66 resin, 6.0-10.0% of PA6T resin, 0.6-1.0% of an antioxidant, 0.3-0.5% of a lubricant, 6.0-10.0% of inorganic filler, 1.0-2.0% of a flexibilizer and 49.0-51.0% of glass fibers. The material is low in water absorption and stable in dimension, considers good processing property and mechanical property, is good in toughness, high in strength, good in impact resistance, resistant to ageing, high temperature, high humidity and low temperature and excellent in comprehensive property, and meets the high standard demand of the high speed rail base plate.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a glass fiber reinforced PA66 high-speed rail track substrate material and a preparation method thereof. Background technique [0002] The rapid development of China's high-speed rail, and the successful signing of some foreign projects, this is an opportunity for the development of China's high-speed rail. At the same time, high-speed railway has become an important part of the national economy due to its advantages of low energy consumption, high-speed safety, comfort and energy saving. Although the railway system has carried out several large-scale speed increases, the overall railway transport capacity cannot meet people's needs. An important way to solve this bottleneck is to speed up the construction of high-speed railways. An important way to speed up the development of high-speed rail is to use new materials to improve it. Polymer materials with li...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L23/08C08K13/04C08K7/14C08K7/20C08J5/04
CPCC08J5/043C08J2377/06C08J2423/08C08J2477/06C08K7/14C08K7/20C08K13/04C08K2201/003C08K2201/004
Inventor 魏毅张钊鹏吴培新张平肖雄伟
Owner GUANGDONG SHUNDE SHUNYAN NEW MATERIALS
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