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A kind of polyamide resin composition and preparation method thereof

A technology of polyamide resin and composition, applied in the field of polymer chemistry, can solve the problems of high cost, poor heat-moisture aging resistance, decreased thermal-oxidative aging resistance, etc., and achieve the effect of excellent long-term thermal-oxidative aging resistance

Active Publication Date: 2020-03-17
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the amount of polyol added is high and the cost is high. Moreover, its heat and oxygen aging resistance will gradually decrease and be extended to 21 days when it is treated under more stringent test conditions (85°C and 90% relative humidity) for 14 days. It was found that its heat and oxygen aging resistance will be greatly reduced because of its poor long-term moisture and heat aging resistance under this condition
Therefore, its scope of application is limited

Method used

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  • A kind of polyamide resin composition and preparation method thereof
  • A kind of polyamide resin composition and preparation method thereof
  • A kind of polyamide resin composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-20 and comparative example 1-6

[0055] Preparation of polyamide resin composition:

[0056] According to Table 1, the dried polyamide resin, metal salt compound, ketone carbonyl polymer, filler and additives are blended, and then extruded through a twin-screw extruder at a temperature of 220°C-280°C, cooled, and pelletized. A polyamide resin composition was obtained.

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Abstract

Disclosed are a polyamide resin composition and a preparation method therefor. The polyamide resin composition comprises the following ingredients in parts by weight: 5-15 parts of polyamide resin, 0.1-5 parts of metal salt compound, 35-80 parts of ketone carbonyl polymer The preparation method comprises blending, extruding, cooling and granulating the dried polyamide resin, the metal salt compound, the ketone carbonyl polymer and the like. The composition can also be used in components such as an engine hood and the like.

Description

technical field [0001] The invention relates to the technical field of polymer chemistry, in particular to a polyamide resin composition and a preparation method thereof. Background technique [0002] Due to their excellent mechanical properties, chemical resistance, processability, and heat-oxidative aging resistance, polyamides are often used in the electronics and motor vehicle industries that have strict requirements on the working environment. Among them, the applications around the motor vehicle engine Very common. The demand for high temperature resistance of materials in the field of motor vehicles is becoming more and more obvious. This is based on the fact that the temperature in the surrounding area of ​​the automobile engine is usually higher than 150 ° C, especially for engines with turbocharged air intake, the temperature is even higher than 180 ° C or even High temperature above 200°C. As polyamide compositions are often used at such service temperatures, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L73/00C08L77/06C08K13/04C08K3/16C08K5/098C08K7/14
CPCC08L73/00C08L2201/08C08L77/06C08K13/04C08K7/14C08K5/098C08K3/16
Inventor 罗忠富黄险波叶南飚王大中杨波丁正亚林洁龙
Owner KINGFA SCI & TECH CO LTD
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