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High-performance polypropylene for automobile bumper

A technology of automobile bumper and polypropylene, which is applied in the field of polymer materials, can solve the problems of single modification effect and poor comprehensive performance of PP products, and achieve the effects of good dimensional stability, excellent fluidity and low thermal shrinkage rate

Inactive Publication Date: 2016-08-24
SUZHOU HAOSHUN PLASTIC RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modification effect of these modification methods is single, and the overall performance of the obtained PP product is not good.

Method used

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  • High-performance polypropylene for automobile bumper

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Effect test

Embodiment 1

[0021] A high-performance polypropylene for automobile bumper, comprising the following components in parts by weight:

[0022] 50 parts of polypropylene;

[0023] 30 parts of polypropylene-EPDM copolymer;

[0024] 10 parts of ethylene / octene random copolymer;

[0025] 5 parts polyethylene;

[0026] 5 parts polyamide;

[0027] 20 parts of filler, including fiber filler and particle filler with a mass ratio of 2:5, wherein the fiber filler includes nylon fiber and glass fiber with a mass ratio of 1:3, and the particle filler is a mass ratio of 1:3:0.3:2 White carbon black, talc, nano-titanium dioxide and microsilica;

[0028] 5 parts of bis(p-hydroxyphenyl)phenylphosphine oxide;

[0029] Functional additives, specifically including: 1 part of antioxidant, which is a mixture of dilauryl thiodipropionate and antioxidant 1010 in a mass ratio of 2:1; 0.5 part of polyethylene wax, used as a dispersant; silane 3 parts of coupling agent; 0.5 parts of ultraviolet absorber and 3 p...

Embodiment 2

[0031] A high-performance polypropylene for automobile bumper, comprising the following components in parts by weight:

[0032] 60 parts of polypropylene;

[0033] 35 parts of polypropylene-EPDM copolymer;

[0034] 15 parts of ethylene / octene random copolymers;

[0035] 10 parts polyethylene;

[0036] 10 parts polyamide;

[0037] 30 parts of filler, including fiber filler and particle filler with a mass ratio of 3:5, wherein the fiber filler includes nylon fiber and glass fiber with a mass ratio of 2:3, and the particle filler is a mass ratio of 2:5:0.5:3 White carbon black, talc, nano-titanium dioxide and microsilica;

[0038] 8 parts of bis(p-hydroxyphenyl)phenylphosphine oxide;

[0039] Functional additives, specifically include: 3 parts of antioxidant, which is a mixture of dilauryl thiodipropionate and antioxidant 1010 in a mass ratio of 2:1; 2.0 parts of polyethylene wax, used as a dispersant; silane 5 parts of coupling agent; 1.5 parts of ultraviolet absorber and ...

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Abstract

The invention discloses high-performance polypropylene for an automobile bumper. The high-performance polypropylene comprises, by weight, 50-60 parts of polypropylene, 30-35 parts of polypropylene-ethylene propylene diene monomer copolymer, 10-15 parts of ethylene / octylene random copolymer, 5-10 parts of polyethylene, 5-10 parts of polyamide, 20-30 parts of filler, 1-3 parts of antioxidant, 0.5-2.0 parts of polyethylene wax, 3-5 parts of a silane coupling agent, 0.5-1.5 parts of ultraviolet light absorber, 5-8 parts of p-(p-hydroxyphenyl) phenyl-phosphine oxide and 3-5 parts of a bulking agent. According to the high-performance polypropylene, raw material selection and formula design are conducted, the high-performance polypropylene has excellent fluidity, high mechanical strength, good impact toughness and the high thermal deformation temperature and meanwhile has the performance of being low in low hot-shrinkage rate and easy to coat and the like, is easy to process and short in formation cycle and can meet the injection molding requirement of the automobile bumper, an obtained product is good in dimension stability and excellent in comprehensive performance.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-performance polypropylene for automobile bumpers. Background technique [0002] The bumper is one of the largest exterior parts on the car. It is installed on the car as an independent assembly and is an important part of the whole car. It has a great impact on the safety protection, styling effect and aerodynamic performance of the car. . Therefore, the material used to make the bumper must have a sufficiently high high-temperature modulus and a sufficiently low low-temperature modulus. [0003] Polypropylene (PP) is one of the five general-purpose plastics. Due to its rich source of raw materials, low price, easy molding and processing, and excellent product comprehensive performance, it is currently an ideal material for making automobile bumpers. However, PP has defects such as poor cold resistance, low temperature brittleness, large shrinkage, poor creep resistance,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L23/06C08L77/00C08L53/00C08L51/06C08K13/04C08K7/14C08K3/22C08K3/36C08K3/34B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/9259B29C2948/92704C08K2201/011C08K2201/014C08L2201/08C08L2205/025C08L2205/035C08L2205/08C08L2205/16C08L23/0815C08L23/06C08L77/00C08L53/00C08L51/06C08K13/04C08K7/14C08K2003/2241C08K3/36C08K3/34
Inventor 邹晓明
Owner SUZHOU HAOSHUN PLASTIC RUBBER CO LTD
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