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Composite reinforced modified polypropylene composition for vehicle parts, and preparation method thereof

A polypropylene composition and composite reinforcement technology, applied in the field of polypropylene composition, can solve the problems of poor fluidity, impact strength and other mechanical properties, inconvenience, and weak structural strength of polypropylene composition

Inactive Publication Date: 2014-06-18
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Though this invention makes polypropylene composition be used for automobile interior parts by adding maleic anhydride grafted polypropylene in polypropylene composition, its notched impact strength KJ / m average value is only 18.74, and tensile strength (MPa) The average value is only 1517, and the average value of the flexural modulus (MPa) is only 1517. These data show that the fluidity, impact strength and other mechanical properties of the polypropylene composition added with maleic anhydride grafted polypropylene are poor, and the structural strength is weak. Can not be used to prepare automotive thin-walled interior parts and components
[0006] Therefore known modified polypropylene compositions have above-mentioned inconveniences and problems in the preparation of automotive thin-walled interior parts and parts

Method used

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  • Composite reinforced modified polypropylene composition for vehicle parts, and preparation method thereof
  • Composite reinforced modified polypropylene composition for vehicle parts, and preparation method thereof
  • Composite reinforced modified polypropylene composition for vehicle parts, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A composite reinforced modified polypropylene material for automobile parts, its composition and the weight percentage of each composition are as follows:

[0045] Polypropylene resin (PP) 60.6%,

[0046] Polyolefin Elastomer 17%,

[0047] Talc 16%,

[0048] Magnesium Sulfate Whiskers 6%,

[0049] Antioxidant 0.2%,

[0050] Processing aid 0.2%,

[0051] Among them: polypropylene resin (PP), the brand is BX3920, produced by SK Company of South Korea; polyolefin elastomer, the brand is DF640, produced by Mitsui Corporation of Japan; the inorganic filler is basic magnesium sulfate whisker, the brand is WS-1S, produced by Produced by Wesker Chemical Co., Ltd. in Yingkou City, Liaoning; talcum powder is commercially available; the antioxidant is IRGANOX 1010, produced by Swiss Ciba Fine Chemical Company; the processing aid is plastic processing aid EBS, produced by Zibo Zhoucun Lubo Chemical Co., Ltd. Ltd. production.

[0052] In the present embodiment, the inorganic f...

Embodiment 2

[0059] In the present embodiment, except that the inorganic filler adopts talcum powder 12% and magnesium sulfate whisker 10%, all the other are the same as embodiment 1.

Embodiment 3

[0061] In this example, except for 18% of polyolefin elastomer, 15% of talcum powder and 6% of magnesium sulfate whiskers as inorganic fillers, the rest are the same as in Example 1.

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Abstract

The invention relates to a composite reinforced modified polypropylene composition for vehicle parts. The composite reinforced modified polypropylene composition is characterized by comprising, by weight, 50-78% of a polypropylene resin, 15-25% of a toughening agent, 6-22% of an inorganic filler, 0.1-1% of an antioxidant, and 0.1-1.5% of a processing auxiliary agent, wherein the melting index of the polypropylene resin at a temperature of 230 DEG C under a test condition of load of 2.16 kg is 30-40 g / 10 min, the toughening agent is a polyolefin elastomer, the inorganic filler is magnesium sulfate crystal whisker, talc powder, or a combination of the magnesium sulfate crystal whisker and the talc powder, the antioxidant is selected from butylated toluene or a combination thereof, and the processing auxiliary agent is selected from a fatty acid ester, a metal soap, or a combination of the fatty acid ester and the metal soap. The composite reinforced modified polypropylene composition has characteristics of excellent flexural modulus, excellent impact strength and excellent fluidity, wherein the mechanical property can meet requirements of practicality and safety of the vehicle part when the thickness of the vehicle part is reduced by 1 / 3.

Description

technical field [0001] The invention relates to a polypropylene composition, in particular to a composite reinforced modified polypropylene composition for automobile parts and a preparation method thereof. Background technique [0002] Polypropylene is a general-purpose plastic with a wide range of uses. It is polymerized from propylene monomer. Ordinary PP resin is difficult to meet the application requirements of various industries. The application range of modified polypropylene materials is already very wide. However, in industries such as automobiles, the technical level requirements for modified PP are increasing day by day, and the processing characteristics of materials are also raised. Some higher requirements. [0003] Cars, as one of the main means of transportation in modern society, are large energy consumers. According to statistics, 50% of the oil resources in western developed countries are consumed in automobiles. In recent years, my country's automobile...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/02C08K3/30C08K3/34C08K3/26C08K5/101C08K5/103C08K5/098C08K5/20B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08L23/12C08L23/00C08K13/04C08K7/08C08K2003/3063C08K3/34B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29C48/04B29C48/40B29C48/911B29C2948/92266B29C2948/92485B29C2948/92514B29C2948/92561B29C2948/9259B29C2948/92695B29C2948/92761B29C2948/92828B29C2948/92885B29C2948/92895B29C2948/9298
Inventor 王传新丁超陈延安孙刚
Owner SHANGHAI KINGFA SCI & TECH
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