Lightweight, wear-resistant and spraying-free ASA composite material for noise reduction automobile and preparation method of ASA composite material

Abstract

The invention discloses a lightweight, wear-resistant, spraying-free and noise-reducing ASA composite material for automobiles and a preparation method of the ASA composite material. The ASA compositematerial is prepared from the following raw materials in percentage by weight: 41-86% of acrylonitrile-styrene copolymer; 10%-60% of an acrylic styrene acrylate grafted copolymer; 3%-40% of vinyl fluoride micro powder; 2%-8% of a compatilizer; 1%-25% of hollow glass beads; 0.3%-5% of a coupling agent; 0.2%-1% of an antioxidant; 0.2%-1% of light stabilizer. The method comprises the steps: dividingthe hollow glass beads into three equal parts, putting 1 / 3 of the hollow glass beads and the other raw materials into a high-speed stirrer, and stirring for 5-10 minutes at the rotating speed of 500-1,800 revolutions per minute to obtain a premix; putting the premix into a double-screw extruder, adding the other two equal parts of hollow glass beads into the double-screw extruder from a side feeding hole respectively, and carrying out melt extrusion and granulation. The lightweight, wear-resistant, spraying-free and noise-reducing ASA composite material can be used for automotive interior andexterior plastic parts such as stand columns, grids, decorative strips and scratch-resistant strips.

Description

technical field

[0001] The invention relates to an ASA resin composite material, in particular to an ASA composite material for lightweight, wear-resistant, spray-free and noise-reducing automobiles and a preparation method thereof, belonging to the technical field of polymer modification and processing. Background technique

[0002] ASA resin is also called AAS resin, it is a terpolymer obtained by copolymerization of acrylonitrile (Acrylonitrile), styrene (Styrene) and acrylate (Acrylate), AS is a kind of acrylonitrile (Acrylonitrile) and styrene (Styrene) is a binary copolymer obtained by copolymerization. ASA raw materials have excellent product characteristics, especially their excellent UV resistance, and can withstand long-term exposure through appropriate modification, and their mechanical properties are basically not reduced. They will not be like typical ABS (even adding Ashing phenomenon occurs like ABS with UV stabilizer, so automobile manufacturers directly use...

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