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Low-luster polypropylene composite material and preparation method thereof

A technology for composite materials and polypropylene, applied in the field of low-gloss polypropylene composite materials and its preparation, can solve the problems of reducing the surface gloss of composite materials, destroying structure and shape, and affecting the comprehensive performance of composite materials, so as to reduce gloss, mechanical Improved performance and lower production costs

Inactive Publication Date: 2010-06-30
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application number is CN200710171710.0, which discloses a method for reducing the surface gloss of composite materials by adding silica, but to a certain extent, the shearing of the screw will lead to the destruction of the structure of the filler itself, thereby affecting the comprehensive performance of the composite material.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Below in conjunction with embodiment, the present invention is described in further detail:

[0032] In the composite material formulations of Examples and Comparative Examples, the polypropylene is a block copolymer polypropylene with a melt flow rate of 8 g / 10 min (test condition: 230° C.×2.16 kg) produced by Shanghai Petrochemical, and its trade name is M700R. Other inorganic fillers are selected from talcum powder and barium sulfate with a particle size range of 10 microns. The toughening agent POE is a linear ethylene-octene copolymer produced by DuPont Company, the trade name is Engage 8180, and its melt index is 0.5g / 10min (test condition: 190°C×2.16kg). The wollastonite is white acicular wollastonite with an aspect ratio of 10:1. The main antioxidant is selected from the DSTP produced by British ICE company, the trade name is Negonox DSTP, the chemical name is stearyl thiodipropionate, and the 3114 produced by Ciba company, the trade name is Irganox 3114, and t...

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Abstract

The invention discloses a low-luster polypropylene composite material and a preparation method thereof, belonging to the field of polymer modifying and processing. The low-luster polypropylene composite material is prepared by the following raw materials with the weight percent in brackets: polypropylene (58 to 86%), wollastonite (13 to 30%), other inorganic padding (0 to 12%), flexibilizer POE (0 to 15%), antioxidant (0.1 to 2%), and other assistants (0 to 5%). The wollastonite (the inorganic padding) which can effectively lower the surface luster of a product is added to the basis formula of the polypropylene composite material, so as to prepare the low-luster polypropylene composite material with excellent performance.

Description

technical field [0001] The invention relates to a low-gloss polypropylene composite material and its preparation method. More specifically, the glossiness of the polypropylene composite material is reduced by adding an inorganic filler wollastonite in the way of side feeding, and the mechanical properties of the material are improved. The performance has been improved to a certain extent, meeting people's requirements for low gloss of automotive interior parts, and belongs to the field of polymer modification and processing. Background technique [0002] With the outbreak of the world oil crisis and the depletion of oil resources, with the development of society and science and technology, people put forward higher requirements for cars: light weight, energy saving, beautiful appearance, safety, environmental protection and so on. The amount of automotive plastic products in developed countries is increasing year by year in order to achieve the purpose of reducing vehicle we...

Claims

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Application Information

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IPC IPC(8): C08L23/10C08K13/04C08K7/10B29B9/00B29C47/92B29C47/10B29C48/40B29C48/92
CPCB29C48/04B29C48/40
Inventor 程文超张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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