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High-strength, high-weather-resistance and good-appearance PA6 composition and preparation method thereof

A technology with high weather resistance and composition, applied in the field of polymer materials, can solve problems such as low water absorption PA6 composition

Pending Publication Date: 2021-03-12
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no PA6 composition with excellent comprehensive properties such as high strength, high rigidity, good appearance, high weather resistance, low water absorption, and low warpage to meet the requirements of lightweight

Method used

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  • High-strength, high-weather-resistance and good-appearance PA6 composition and preparation method thereof
  • High-strength, high-weather-resistance and good-appearance PA6 composition and preparation method thereof

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Effect test

Embodiment 1-6

[0041] Weigh the raw materials according to the ratio shown in Table 1, premix the dried PA6 (drying condition 120°C, 6H), amorphous nylon, carbon black, fluidity improver, antioxidant, lubricant and weathering agent, It is plasticized by twin-screw, and glass fiber and mineral powder are fed in sequence from both sides in proportion. After traction, cooling, pelletizing and drying, pellets are obtained. The twin-screw extruder is set at a temperature of 220-240° C. and a screw speed of 300-400 rpm according to the conventional practice in the field such as the operation manual.

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Abstract

The invention relates to a high-strength, high-weather-resistance and good-appearance PA6 composition and a preparation method thereof. The high-strength, high-weather-resistance and good-appearance PA6 composition comprises the following components in parts by weight: 25-45 parts of PA6 resin; 5 -10 parts of amorphous nylon and 20 to 50 parts of glass fiber; 10-40 parts of mineral powder; 0.3-0.8part of carbon black; 0.3-0.8 part of a fluidity improver; 0.3-0.8 part of an antioxidant; 0.3-0.8 part of a lubricant; 0.5-1 part of weather-resistant agent. The PA6 composition disclosed by the invention has good comprehensive performance, and can be used for preparing a high-performance composite material to replace a traditional metal material to be used in automobile functional parts and structural parts.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PA6 composition with high strength, high weather resistance and good appearance and a preparation method thereof. Background technique [0002] Lightweight is an important trend in the development of the global automobile industry. The overall plan for automobile development in "Made in China 2025" emphasizes that lightweight is still the top priority. Replacing steel with plastic is one of the important ways to realize the lightweight of automobiles. Its implementation is to replace traditional metal materials with high-performance composite materials in functional and structural parts of automobiles. Nylon is an engineering plastic widely used in automobiles. It has the characteristics of high strength, high heat resistance, good chemical resistance, and excellent electrical insulation. It is very mature to replace metal materials with nylon materials in auto parts...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08K13/06C08K9/04C08K7/14C08K3/04C08K5/092
CPCC08L77/02C08L2205/02C08L2201/08C08L77/06C08K13/06C08K9/08C08K7/14C08K3/04C08K5/092
Inventor 叶士兵张超丁正亚肖军华付大炯邱志强安朋王飞林洁龙夏建盟
Owner SHANGHAI KINGFA SCI & TECH
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