Modified PA66 composite material and preparation method thereof

A composite material, PA66 technology, applied in the field of modified PA66 composite material and its preparation, can solve the problems of unfavorable application and promotion of PA66, poor product dimensional stability, poor resistance to strong acid and strong alkali, etc., and achieve good hiding power and good chemical stability , good friction resistance

Inactive Publication Date: 2018-09-28
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are still defects in the mechanical properties of PA66, such as high hygroscopicity, poor resistance to strong acids and strong alkalis, poor dimensional stability of products, poor light resistance, low elastic modulus, and poor low temperature impact resistance.
[0004] However, these modification methods are highly targeted, and many properties cannot be balanced
Moreover, the preparation process of the material is complicated and the price is high, which is not conducive to the application and promotion of PA66. Therefore, it is of great significance to find a formula that comprehensively improves the performance of PA66 and a simple preparation process.

Method used

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  • Modified PA66 composite material and preparation method thereof
  • Modified PA66 composite material and preparation method thereof
  • Modified PA66 composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A modified PA66 composite material, comprising the following components: PA66, polytrimethylene terephthalate, aramid pulp, nano TiO 2 , talcum powder, nano alumina, brucite, zinc stearate, antistatic agent and coupling agent.

[0027] Among them, the antistatic agent is sodium dodecylbenzenesulfonate; the coupling agent is γ-(2,3-epoxypropoxy)propyltrimethoxysilane; nano-TiO 2 The particle size is 50-300nm; the nano-alumina particle size is 500-800nm.

[0028] Preparation:

[0029] (1) get each component by weight and prepare materials;

[0030] (2) PA66, polytrimethylene terephthalate, aramid pulp, antistatic agent and coupling agent are mixed to prepare premix I through high mixer;

[0031] (3) Premix I is extruded through a co-rotating twin-screw extruder, and composite material I is obtained after water cooling, air cooling, and granulation;

[0032] (4) Composite material I, nano TiO 2 , talcum powder, nano-alumina, brucite, and zinc stearate are mixed by a h...

Embodiment 2

[0053] A modified PA66 composite material, comprising the following components in parts by weight: 80 parts of PA66, 12 parts of polytrimethylene terephthalate, 4 parts of aramid pulp, nano TiO 2 7 parts, 5 parts of talcum powder, 6 parts of nano-alumina, 8 parts of brucite, 10 parts of zinc stearate, 1 part of antistatic agent and 1 part of coupling agent.

[0054] Among them, the antistatic agent is sodium dodecylbenzenesulfonate; the coupling agent is γ-(2,3-epoxypropoxy)propyltrimethoxysilane; nano-TiO 2 The particle size is 50-300nm; the nano-alumina particle size is 500-800nm.

[0055] Preparation method 1:

[0056] (1) get each component by weight and prepare materials;

[0057] (2) PA66, polytrimethylene terephthalate, aramid pulp, antistatic agent and coupling agent are mixed to prepare premix I through high mixer;

[0058] (3) Premix I is extruded through a co-rotating twin-screw extruder, and composite material I is obtained after water cooling, air cooling, and ...

Embodiment 3

[0076] A modified PA66 composite material, comprising the following components in parts by weight: 77 parts of PA66, 16 parts of polytrimethylene terephthalate, 5 parts of aramid pulp, nano TiO 2 5 parts, 7 parts of talcum powder, 5 parts of nano-alumina, 10 parts of brucite, 12 parts of zinc stearate, 0.5 parts of antistatic agent and 2 parts of coupling agent.

[0077] Among them, the antistatic agent is sodium dodecylbenzenesulfonate; the coupling agent is γ-(2,3-epoxypropoxy)propyltrimethoxysilane; the particle size of nano-TiO2 is 50-300nm; nano-alumina The particle size is 500-800nm.

[0078] Preparation method 1:

[0079] (1) get each component by weight and prepare materials;

[0080] (2) PA66, polytrimethylene terephthalate, aramid pulp, antistatic agent and coupling agent are mixed to prepare premix I through high mixer;

[0081] (3) Premix I is extruded through a co-rotating twin-screw extruder, and composite material I is obtained after water cooling, air cooli...

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Abstract

The invention belongs to the technical field of high molecular material preparation, and particularly relates to a modified PA66 composite material and a preparation method thereof. The modified PA66composite material is prepared from PA66, polytrimethylene terephthalate, aramid fiber pulp, nanometer TiO2, talcum powder, nanometer aluminum oxide, brucite, zinc stearate, anti-static agents and coupling agents. The prepared composite material has the advantages of excellent mechanical property, good friction-resistant performance, high temperature resistance and aging resistance; the preparation method is simple, can be easily controlled, and can be widely applied to automobile industry, instruction casings and other products with anti-impact, high-intensity and high-wear-resistant requirements.

Description

technical field [0001] The invention belongs to the technical field of polymer material preparation, and in particular relates to a modified PA66 composite material and a preparation method thereof. Background technique [0002] PA66 is polyhexamethylene adipate, also known as nylon 66 and polyamide 66; it is a translucent or opaque milky white crystalline polymer with good comprehensive properties. Compared with other engineering plastics, it has excellent wear resistance, With the advantages of toughness and heat resistance, it is the earliest developed variety of thermoplastic resins with the largest output. It is also an excellent polymer material for chemical fibers. It has the widest range of applications and its output has increased year by year. It has ranked first among the top five engineering plastics. [0003] However, the mechanical properties of PA66 still have shortcomings, such as high hygroscopicity, poor resistance to strong acids and alkalis, poor dimensio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L67/02C08L77/10C08K13/04C08K7/00C08K3/22C08K3/34C08K5/098C08K5/42
CPCC08K2003/2224C08K2003/2227C08K2003/2241C08K2201/003C08K2201/011C08K2201/017C08L77/06C08L2201/02C08L2201/04C08L2201/08C08L2205/03C08L2205/16C08L67/02C08L77/10C08K13/04C08K7/00C08K3/22C08K3/34C08K5/098C08K5/42
Inventor 袁丽娟于浩林航代汝军韩杰
Owner HEILONGJIANG XINDA ENTERPRISE GRP
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