High-performance resin special for automobile exterior trimming and preparation method thereof

A high-performance, automotive technology, applied in the field of modified materials, can solve the problems of severe weather resistance, difficult weather resistance, aesthetics and cost balance, achieve excellent rigidity and toughness, reduce poor process and post-processing technology, and material costs. low effect

Pending Publication Date: 2021-07-02
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the weather resistance of materials for automotive exterior decoration is relatively strict, and at the same time requires a high appearance, it is difficult to balance weather resistance, aesthetics and cost in the selection of automotive exterior materials among ordinary polymer materials

Method used

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  • High-performance resin special for automobile exterior trimming and preparation method thereof
  • High-performance resin special for automobile exterior trimming and preparation method thereof
  • High-performance resin special for automobile exterior trimming and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 50 parts of copolymerized polypropylene with a crystallinity of 65-70%, 30 parts of AES plastic, 10 parts of talcum powder, 10 parts of POE-g-MAH, and 0.5 parts of antioxidant into a high-mixer and mix for 15 minutes; The materials are put into the twin-screw extruder, kneaded, extruded, cooled and pelletized to obtain a high-performance automotive exterior resin; the extrusion temperature of each extrusion section in the twin-screw extruder is 190°C and 190°C respectively , 200°C, 210°C, 220°C, 230°C, 230°C, 240°C, 240°C, 240°C. The performance test results are shown in Table 1.

Embodiment 2

[0026] Add 60 parts of copolymerized polypropylene with a crystallinity of 65-70%, 20 parts of AES plastic, 15 parts of talcum powder, 8 parts of POE-g-MAH, and 0.5 parts of antioxidant into a high-mixer and mix for 10 minutes; then mix evenly The materials are put into the twin-screw extruder, kneaded, extruded, cooled and pelletized to obtain a high-performance automotive exterior resin; the extrusion temperature of each extrusion section in the twin-screw extruder is 185°C and 185°C respectively , 195°C, 205°C, 215°C, 225°C, 225°C, 235°C, 235°C, 235°C. The performance test results are shown in Table 1.

Embodiment 3

[0028] Add 70 parts of copolymerized polypropylene with a crystallinity of 65-70%, 10 parts of AES plastics, 15 parts of talc powder, 5 parts of POE-g-MAH, and 0.5 parts of antioxidant into a high-mixer and mix for 5 minutes; then mix evenly The materials are put into the twin-screw extruder, kneaded, extruded, cooled and pelletized to obtain a high-performance automotive exterior resin; the extrusion temperature of each extrusion section in the twin-screw extruder is 180°C and 180°C respectively , 190°C, 200°C, 210°C, 220°C, 220°C, 230°C, 230°C, 230°C. The performance test results are shown in Table 1.

[0029] Table 1

[0030]

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Abstract

The invention discloses high-performance resin special for automobile exterior trimming and a preparation method thereof. The high-performance resin is prepared from 50-70 parts of polypropylene, 10-30 parts of AES plastic, 10-15 parts of talcum powder, 5-10 parts of POE-g-MAH and 0.5 part of antioxidant. The antioxidant is a mixture of at least three of beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecanol propionate, tri-(2, 4-di-tert-butylphenyl) phosphite ester, N-phenyl-N '-cyclohexyl p-phenylenediamine and dioctadecanol thiodipropionate. According to the present invention, the talcum powder and the POE-g-MAH are added to the polypropylene and AES plastic composite base material, such that the overall weather resistance level of the material is high, the defect of the common polypropylene or ABS material in the weather resistance can be made up, the problem of poor compatibility of the blending material is avoided by optimizing the formula design, and the obtained material has high mechanical strength and excellent rigidity and toughness.

Description

technical field [0001] The invention belongs to the technical field of modified materials, and in particular relates to a special resin for high-performance automobile exterior decoration and a preparation method thereof. Background technique [0002] Among automotive system components, exterior parts use the most plastic materials. Usually, the automotive exterior parts we define include car bumpers, car lights, car exterior mirrors, pull-out door handles, air intake grilles, car sunroofs, etc. Automobile exterior plastic parts are mostly completed by injection molding, and then painted or textured after molding. For the exterior trim parts that use the painting process, the color and quality of the parts and the body are required to be consistent, and a high-temperature baking spraying system will be used. For exterior parts using leather texture technology, the focus of design should be to consider color and durability. The plastic materials of automotive exterior part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L51/06C08K13/02C08K3/34C08K5/134C08K5/526C08K5/18C08K5/372
CPCC08L23/14C08L2205/03C08L51/04C08L51/06C08K13/02C08K3/34C08K5/1345C08K5/526C08K5/18C08K5/372
Inventor 杨桂生赵鑫姚晨光邹冲朱敏
Owner HEFEI GENIUS NEW MATERIALS
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