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Scratching-resistant low-gloss polypropylene composite material and preparation method thereof

A composite material, polypropylene technology, applied in the field of polymer modification and processing, can solve the problems of high gloss of materials, and achieve the effects of low surface gloss, simple preparation process and low production cost

Inactive Publication Date: 2015-04-29
SHANGHAI PRET COMPOSITES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to improve the scratch resistance of polypropylene composite materials and solve the problem of high gloss of materials caused by the addition of polysiloxane, the technical solution of the present invention is to add reactive high polysiloxane to the basic formula of polypropylene materials. Alkanes and fully vulcanized powder rubber, in the process of extrusion blending, reactive high polysiloxane and polypropylene material are cross-linked, fully vulcanized powder rubber is uniformly dispersed in polypropylene to form a gel, from the surface of the product to form a uniform bump shape

Method used

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  • Scratching-resistant low-gloss polypropylene composite material and preparation method thereof
  • Scratching-resistant low-gloss polypropylene composite material and preparation method thereof
  • Scratching-resistant low-gloss polypropylene composite material and preparation method thereof

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Embodiment Construction

[0027] Below in conjunction with embodiment, the present invention is described in further detail:

[0028] In the composite material formulations of Examples and Comparative Examples, the polypropylene used is a copolymerized polypropylene produced by Shanghai Petrochemical, and the trade name is M2600R. The inorganic filler is 5000-mesh talc powder with an average particle size of 2.5 microns. The reactive polysiloxane used is self-made polysiloxane containing vinyl reactive functional groups, and the molecular weight is between 10,000 and 30,000. The fully vulcanized powder rubber used is fully vulcanized powdered silicone rubber produced by Beijing Research Institute of Chemical Industry, the brand name VP-601 has an average particle size of 0.05-1 μm, and its gel content is 60 wt% or higher. The initiator used is 1,3,5-triisopropylbenzene from Shanghai Ethyl Chemical Co., Ltd., with a molecular formula of C15H24 and a molecular weight of 204.4. Used main antioxidant is ...

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Abstract

The invention discloses a scratching-resistant low-gloss polypropylene composite material and a preparation method thereof. The scratching-resistant low-gloss polypropylene composite material is prepared from the following raw materials in percentage by weight: 40-93% of polypropylene, 0-30% of an inorganic filler, 1-5% of reaction type high polysiloxane, 5-20% of fully vulcanizated powdered rubber, 0.1-1% of an initiator, 0.1-1% of an antioxidant, 0.1-1% of a light stabilizer, and 0-2% of other auxiliaries. According to the preparation method disclosed by the invention, the reaction type high polysiloxane and the fully vulcanizated powdered rubber are added to the basic formula, so that when the scratching resistance of the polypropylene material is improved, the high gloss problem of the product caused by addition of polysiloxane can be solved; the obtained polypropylene composite material is low in surface gloss, good in light extinction effect, and suitable for automobiles, household appliances and other fields.

Description

technical field [0001] The invention relates to a scratch-resistant low-gloss polypropylene composite material and a preparation method thereof. It is a polypropylene composite material with simple process, low cost and good comprehensive performance. It is mainly used in automotive interior parts and belongs to polymer modification. and processing technologies. Background technique [0002] Polypropylene is widely used in automotive interior and exterior trims because of its good processing performance, physical, mechanical and chemical properties, light weight and low price. It is currently the fastest growing general-purpose thermoplastic. However, due to the low surface hardness of polypropylene, automotive interior parts made of polypropylene materials have poor scratch resistance and the surface is easily scratched. At the same time, if the gloss of the cockpit interior parts is high, there will be strong light reflection, which will affect the comfort of the driver. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L53/00C08L83/07C08L83/04C08K13/02C08K3/34C08K3/26C08K3/30C08K5/01
CPCC08L53/00C08K2201/005C08L23/12C08L2205/02C08L2205/03C08L2207/10
Inventor 康兴宾张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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