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Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof

A technology of polytetrafluoroethylene and aramid fiber, applied in the field of polytetrafluoroethylene and aramid fiber wear-resistant reinforced modified PA66 material and its preparation, can solve the problems of easy water absorption, affecting dimensional stability and electrical properties, etc. Achieve excellent wear resistance

Inactive Publication Date: 2015-03-18
ANHUI KEJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it is easy to absorb water, which affects dimensional stability and electrical properties, and generally requires fiber or mineral filling reinforcement to improve

Method used

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  • Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof
  • Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof
  • Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of polytetrafluoroethylene and aramid fiber wear-resisting reinforced modified PA66 material of this embodiment, by weight percentage, consist of the following components:

[0026] 74% PA66 resin; 10% aramid fiber; 3% compatibilizer; 5% toughening agent; 1% coupling agent; 5% polytetrafluoroethylene; 2% plastic processing aid.

[0027] Its preparation method is as follows:

[0028] Step 1, weighing each component according to the above-mentioned weight percentage, and carrying out drying treatment on each component taken;

[0029] Step 2. Put the dried PA66 resin, compatibilizer and coupling agent in a high-speed mixer or blender and pre-mix for 3-5 minutes, then add PTFE resin powder, toughener and plastic processing aids to continue Mix for 10-20min;

[0030] Step 3. While performing Step 2, place the aramid chopped fiber roll in the coupling agent for pre-soaking treatment for 3-5 minutes;

[0031] Step 4: Put the mixed material into the hopper of the twin-...

Embodiment 2

[0033] A kind of polytetrafluoroethylene and aramid fiber wear-resisting reinforced modified PA66 material of this embodiment, by weight percentage, consist of the following components:

[0034] 60% PA66 resin; 15% aramid fiber; 4% compatibilizer; 7% toughening agent; 2% coupling agent; 10% polytetrafluoroethylene; 2% plastic processing aid.

[0035] Its preparation method is as follows:

[0036] Step 1, weighing each component according to the above-mentioned weight percentage, and carrying out drying treatment on each component taken;

[0037] Step 2. Put the dried PA66 resin, compatibilizer and coupling agent in a high-speed mixer or blender and pre-mix for 3-5 minutes, then add PTFE resin powder, toughener and plastic processing aids to continue Mix for 10-20min;

[0038] Step 3. While performing Step 2, place the aramid chopped fiber roll in the coupling agent for pre-soaking treatment for 3-5 minutes;

[0039] Step 4: Put the mixed material into the hopper of the twin...

Embodiment 3

[0041] A kind of polytetrafluoroethylene and aramid fiber wear-resisting reinforced modified PA66 material of this embodiment, by weight percentage, consist of the following components:

[0042] 48% PA66 resin; 20% aramid fiber; 5% compatibilizer; 8% toughening agent; 2% coupling agent; 15% polytetrafluoroethylene; 2% plastic processing aid.

[0043] Its preparation method is as follows:

[0044] Step 1, weighing each component according to the above-mentioned weight percentage, and carrying out drying treatment on each component taken;

[0045]Step 2. Put the dried PA66 resin, compatibilizer and coupling agent in a high-speed mixer or blender and pre-mix for 3-5 minutes, then add PTFE resin powder, toughener and plastic processing aids to continue Mix for 10-20min;

[0046] Step 3. While performing Step 2, place the aramid chopped fiber roll in the coupling agent for pre-soaking treatment for 3-5 minutes;

[0047] Step 4: Put the mixed material into the hopper of the twin-...

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Abstract

The invention discloses an abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and a preparation method thereof. The polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material comprises the following components in percentage by weight: 40-80% of PA66 resin, 3-5% of a compatibilizer, 5-9% of a toughening agent, 1-3% of a coupling agent, 5-15% of polytetrafluoroethylene resin, 5-25% of aramid chopped fiber and 1-3% of other plastics processing additives. PA66 resin is adopted as matrix resin, polytetrafluoroethylene resin and aramid chopped fibers are adopted as filling base materials, the additives having suitable types and proportions are adopted and processed under proper process conditions, the prepared abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material has performance indicators, such as tensile strength, flexural strength, flexural modulus, impact strength and thermal stability, which are far superior to those of the traditional fiberglass reinforced-modified PA66 as well as excellent abrasion resistance and excellent chemical resistance and has road market and application prospects in such industries as automobile, aerospace, petrochemical engineering, electromechanics and electronic and electric appliances.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a polytetrafluoroethylene and aramid fiber wear-resistant reinforced modified PA66 material and a preparation method thereof. Background technique [0002] The full name of aramid fiber is "poly-p-phenylene terephthalamide", which is Aramidfiber in English. It is a new type of high-tech synthetic fiber with ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, Good wear resistance and other excellent properties, the strength of aramid fiber is 5 to 6 times that of steel wire, the modulus is 2 to 3 times that of steel wire or glass fiber, the toughness is 2 times that of steel wire, and the weight is only about 1 / 5 of steel wire , at a temperature of 560 degrees, it does not decompose and does not melt. It has good insulation and anti-aging performance, and has a long life cycle. [0003] Aramid fibers are mainly divided into t...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L27/18C08L77/00B29C47/92B29C48/92
CPCC08L77/06B29C48/92B29C2948/9259B29C2948/92619B29C2948/92704C08J5/046C08J5/06C08J2377/06C08J2427/18C08J2477/10C08L2205/035C08L2205/16C08L77/10C08L27/18
Inventor 徐东文胜徐永
Owner ANHUI KEJU NEW MATERIALS
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