Lightweight noise-reduction modified ABS (Acrylonitrile Butadiene Styrene) material and preparation method thereof

Abstract

The invention relates to a lightweight noise-reductio modified ABS (Acrylonitrile Butadiene Styrene) material which comprises the following raw materials in percentage by weight: 39-93.5% of ABS resin, 5-45% of inorganic filler, 1-10% of dispersing agent, 0.3-5% of coupling agent and 0.2-1% of antioxygen, wherein the inorganic filler is a hollow inorganic particle. Since the hollow inorganic particle is added to the formula of the material, the low density of the material is maintained while the mechanical property of the material is improved; meanwhile, the material is endowed with a certainnoise reduction function because of the special hollow particle structure, therefore, the material has a very high application value in lightweight automobile manufacture, damping and noise reductionand the like. The lightweight noise-reduction modified ABS material is prepared by the step of processing the inorganic filler fed into a screw extruder respectively from multiple lateral feeding ports arranged at different positions, so that the hollow structure of the inorganic filler is not damaged when the inorganic filler is melt and extruded, the inorganic filler can be dispersed more evenly in a substrate, and the prepared material is endowed with better properties.

Description

technical field [0001] The invention relates to a lightweight noise-reducing modified ABS material and a preparation method thereof, which can be applied in the field of automobile manufacturing. Background technique [0002] Acrylonitrile (A)-butadiene (B)-styrene (S) terpolymer (hereinafter referred to as ABS) has many advantages as a very widely used resin: [0003] Acrylonitrile (A) imparts chemical resistance and surface hardness to the material; butadiene (B) imparts toughness; and styrene (S) imparts rigidity and some flow to the polymer. [0004] In the plastic modification industry, inorganic minerals such as talcum powder, mica, calcium carbonate, glass beads, wollastonite, glass fiber, etc. are generally used as filling reinforcement components to improve the rigidity of ABS materials through blending modification , heat resistance, molding shrinkage, chemical resistance, surface gloss, flammability and other properties to meet the requirements of the final plast...

AI Technical Summary

Problems solved by technology

However, since the density of these inorganic mineral fillers is often higher than that of plastics, adding mineral fillers to plastics will relatively increase the weight of the final product (see Table 1 for the impact of inorganic mineral filler content on the density of ABS materials)

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