Hydrolysis-resistant glass fiber reinforced polyamide 66 (PA66) composite material and preparation method thereof

A technology of PA66 and composite materials, applied in the field of preparation of hydrolysis-resistant glass fiber reinforced PA66 composite materials, can solve the problem of easy water absorption of PA66, and achieve the effect of improving hydrolysis resistance, enhancing physical and mechanical properties, and enhancing tensile strength

Inactive Publication Date: 2012-07-18
上海聚威新材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of PA66 easy to absorb water, improve the wear resistance of PA66 at the same time, and provide a glass fiber reinforced PA66 composite material resistant to hydrolysis

Method used

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  • Hydrolysis-resistant glass fiber reinforced polyamide 66 (PA66) composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Below in conjunction with example, the present invention is described in further detail:

[0023] PA66 is used as matrix, aromatic amines are used as hydrolysis-resistant agent, surface-treated alkali-free glass fiber is used as reinforcement, antioxidant 2921 is used as antioxidant, and EBO is used as lubricant. The specific ratio is shown in Table 1 below.

[0024] Table 1 Experimental Proportion Table (parts by weight)

[0025] Raw material name

comparative example

Example 1

Example 2

Example 3

Example 4

PA66

64

61

56

56

56

Anti-hydrolysis agent

0

2

2

2

2

EBO

0

0

2

2

2

2921

1

1

1

0

1

glass fiber

30

30

40

30

30

nanoparticles

3

3

3

2

1

[0026] Prepare PA66 composite materials according to the specific formula i...

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PUM

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Abstract

The invention relates to the field of modification of polymer engineering plastic, in particular to a method for preparing a hydrolysis-resistant glass fiber reinforced polyamide 66 (PA66) composite material. The composite material is characterized by consisting of the following materials in part by weight: 55 to 65 parts of PA66, 0.1 to 2 parts of hydrolysis-resistant agent, 30 to 40 parts of glass fibers, 1 to 3 parts of nanoparticles, 0.5 to 2 parts of antioxidant and 0.5 to 2 parts of lubricating agent. According to the preparation method, extrusion granulation is performed by a double screw extruder. By introducing the high-efficiency hydrolysis-resistant agent, the hydrolysis resistance of the PA66 is improved, and the physical and mechanical properties of the glass fiber reinforced PA66 in a high-humidity environment are enhanced; and meanwhile, by introducing the nanoparticles, the mechanical properties such as tensile strength, hardness and the like of the PA66 are further enhanced, the wear resistance of the PA66 is enhanced, and the application range of the PA66 is further expanded.

Description

technical field [0001] The invention relates to the field of modification of polymer engineering plastics, in particular to the preparation of a hydrolysis-resistant glass fiber reinforced PA66 composite material. Background technique [0002] PA66, also known as nylon 66, is chemically called polyhexamethylene adipate. It is a translucent or opaque milky white crystalline polymer with excellent mechanical properties, abrasion resistance, chemical resistance and processing performance. The disadvantage of PA66 is that it is easy to absorb water, and the equilibrium water absorption rate is about 2.5%. It is difficult to control the shrinkage rate of the product after molding, it is prone to warping and deformation, and the dimensional stability of the product is poor, which cannot meet the requirements of environmental stress resistance and high processing accuracy. In order to expand the application of PA66, PA66 needs to be strengthened and modified to enhance its hydroly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/06C08K9/06C08K7/14C08K3/36C08K5/20C08K5/29
Inventor 王晶王凯张天荣郭清张陆旻
Owner 上海聚威新材料股份有限公司
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