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Special material for automobile bumper and preparation method thereof

A bumper and automobile technology, applied in the field of new materials, can solve the problems of low temperature resistance, dimensional stability, low heat resistance, etc., and achieve the effects of reducing crystallinity, increasing compatibility, and low cost

Active Publication Date: 2015-12-23
广西鑫深科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low temperature resistance, dimensional stability, and heat resistance of PP materials are low, and it needs to be modified to meet the requirements of automobile bumpers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The weight percentage of each component of the special material for automobile bumper produced by recycled polypropylene nonwoven fabric is:

[0023] 40% recycled polypropylene wet wipes, Yanshan Petrochemical Co., Ltd.’s grade K8303 copolymerized polypropylene 23.5%, American Dow Chemical Company’s grade ENGAGE8150 ethylene-octene copolymer 15%, Guiguang Talc Company’s talcum powder 15% , heat stabilizer 0.2%, carbon black 1%, PP grafted maleic anhydride 5%, white oil 0.3%.

[0024] The preparation steps are:

[0025] A, cleaning, crushing, dehydrating, drying, extruding and granulating the recovered polypropylene wet wipes to obtain pellets;

[0026] B. Mix the pellets obtained in step A with polypropylene copolymer, ethylene-octene copolymer, talcum powder, PP grafted maleic anhydride, heat stabilizer, carbon black and white oil, and stir at high speed for 3 to 5 minutes to obtain mixture;

[0027] C. Add the mixture obtained in step B to the twin-screw extruder f...

Embodiment 2

[0029] The weight percentage of each component of the special material for automobile bumper produced by recycled polypropylene nonwoven fabric is:

[0030] 35% recycled polypropylene shopping bags, 28.5% copolymerized polypropylene with brand K8003 from Yangzi Petrochemical Company, 15% ethylene-octene copolymer from Dow Chemical Company, 15% talcum powder from Guiguang Talc Company , heat stabilizer 0.2%, carbon black 1%, PP grafted maleic anhydride 5%, white oil 0.3%.

[0031] Its preparation method is identical with embodiment 1.

Embodiment 3

[0033] The weight percentage of each component of the special material for automobile bumper produced by recycled polypropylene nonwoven fabric is:

[0034] Polypropylene disposable work clothes recycled 30%, Maoming Petrochemical Company’s brand K8003 copolymerized polypropylene 20%, American Dow Chemical Company’s brand ENGAGE8150 ethylene-octene copolymer 15%, Guiguang Talc Company’s talcum powder 15% %, heat stabilizer 0.2%, carbon black 1%, PP grafted maleic anhydride 5%, white oil 0.3%.

[0035] Its preparation method is identical with embodiment 1.

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Abstract

The invention discloses a special material for automobile bumpers and a preparation method thereof, and relates to the technical field of new materials. 10% to 15% toughening agent, 15% to 20% talcum powder, 1% to 5% compatibilizer, and 1% to 5% auxiliary agent. The preparation method is to wash, crush, and Dehydration, drying, extruding and granulating to obtain pellets, and mixing the pellets with polypropylene copolymer, toughening agent, talcum powder, compatibilizer, and additives according to the proportion, and stirring at high speed for 3 to 5 minutes to obtain the mixture. The mixture is fed into a twin-screw extruder for kneading, melted and extruded, and granulated to obtain the product. The main base material of the invention has abundant sources and low cost, can reduce environmental pollution, realize resource recycling, and improve the dimensional stability of the material after the material components are blended.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a special material for automobile bumpers produced by using recycled polypropylene non-woven fabrics and a preparation method thereof. Background technique [0002] With the increasing use of plastics in our country, the number of plastic products eliminated every year is also increasing. In order to reduce the environmental pollution caused by improper disposal of waste plastics and realize the recycling of resources, people have paid great attention to the moderate and reasonable use of recycled plastics; Similarly, my country's spinning industry also produces a large amount of waste polypropylene nonwoven fabrics every year, but because the spinning industry has high requirements for the purity of materials, a large amount of waste polypropylene nonwoven fabrics cannot be processed in a timely manner. Recycling causes a great waste of resources. [0003] Automobile bumper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08L23/16C08L51/06
Inventor 杨开沈韦忠宇卓李传莫树高刘双仕
Owner 广西鑫深科技有限公司
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