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PP composite material for high-performance automobile instrument boards

A technology for automobile instrument panels and composite materials, which is applied in the field of PP composite materials for high-performance automobile instrument panels, and achieves the effects of suitable specifications, firm welding and high blast resistance.

Inactive Publication Date: 2014-03-26
QINGDAO DADU NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is still a relatively low variety in plastic materials, and its tensile strength can only reach 30 MPa or a slightly higher level.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in combination with specific embodiments.

[0018] The technical solution of this embodiment is: a high-performance PP composite material for automobile instrument panel, which is composed of the following components in mass percentage: homopolymer PP 15%-25%, copolymer PP 30%-50%, talcum powder 15% %-25%, toughening agent 12%-20%, other processing aids 1%-2%, said other processing aids are a mixture of coupling agent, antioxidant, weather resistance agent and lubricant.

[0019] Wherein, the particle size of the talcum powder is 1000-1500 mesh.

[0020] Wherein, the toughening agent adopts ethylene-butadiene-styrene terpolymer.

[0021] Wherein, the coupling agent is a silane coupling agent.

[0022] The preparation method of the above-mentioned high-performance PP composite material for automobile instrument panels provided in this embodiment includes the following steps: first, mix each component...

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PUM

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Abstract

The invention relates to the technical field of plastic modification, and especially relates to a PP composite material for high-performance automobile instrument boards. The PP composite material is composed of the following compositions in percent by mass: 15%-25% of homopolymerized PP, 30%-50% of copolymerized PP, 15%-25% of talcum powder, 12%-20% of a flexibilizer and 1%-2% of other processing auxiliary agent, wherein the other processing auxiliary agent is a mixture of a coupling agent, an anti-oxidant, a weather resistant agent and a lubricant. The preparation method of the PP composite material comprises mixing, extrusion and injection moulding. The PP composite material provided by the invention has relatively high bursting resistant strength, is capable of satisfying the usage requirements of middle / high sedans and is suitable for being used as a material special for the high-performance automobile instrument boards.

Description

technical field [0001] The invention relates to the technical field of plastic modification, in particular to a PP composite material for a high-performance automobile instrument panel. Background technique [0002] Polypropylene (PP) is a plastic with a wide range of sources. It has high crystallinity and regular structure, so it has excellent mechanical properties. The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is still a relatively low variety in plastic materials, and its tensile strength can only reach 30 MPa or a slightly higher level. Polypropylene with a larger isotactic index has higher tensile strength, but as the isotactic index increases, the impact strength of the material decreases, but it does not change after falling to a certain value. Due to the above properties, PP is widely used, especially in automotive plastics, PP is used in the largest amount and has the fastest growth rate, and it has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L23/08C08K3/34C08K5/54
CPCC08L23/14C08K2201/003C08L2205/03
Inventor 赵成方
Owner QINGDAO DADU NEW MATERIAL TECH