A kind of preparation method of environment-friendly modified polypropylene material for automotive interior parts

Abstract

The invention discloses a method for preparing an environmentally friendly modified polypropylene material for automotive interior parts, which comprises the following steps: (1) preparing monomer graft modified polypropylene as a compatibilizer; (2) preparing polypropylene 100 parts of resin, 4-10 parts of compatibilizer, 0.1-0.5 part of anti-scratch agent, 0.1-0.5 part of antistatic agent, 0.1-0.5 part of anti-aging agent, 0.1-0.5 part of flavoring agent, mix well, add high-speed mixing Stir in the mixer, control the speed at 600-1000r / min, stir at 90-120°C, and stir for 10-20 minutes; (3) Extrude and granulate through a screw extruder at an extrusion temperature of 200-220°C, cool , to obtain plastic granules; (4) adding the plastic granules to an injection molding machine for injection molding to obtain the environmentally friendly modified polypropylene material for the automotive interior parts. The environmentally friendly modified polypropylene material for automotive interior parts prepared according to the method of the present invention has higher tensile strength, bending strength, flexural modulus and notched impact strength, good antistatic performance, good anti-aging performance, no smell.

Description

technical field [0001] The invention relates to a method for preparing plastics, in particular to a method for preparing an environmentally friendly modified polypropylene material for automotive interior parts. Background technique [0002] Polypropylene resin (PP) is a thermoplastic resin obtained by polymerizing propylene. According to the position of the methyl group, it is divided into three types: isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene. [0003] When the methyl groups are arranged on the same side of the molecular main chain, it is called isotactic polypropylene. If the methyl groups are arranged randomly on both sides of the molecular main chain, it is called atactic polypropylene. When the methyl groups are arranged alternately on both sides of the molecular main chain, it is called interstitial polypropylene. Regular polypropylene. In the polypropylene resin produced in general industry, the isotactic structure content is abo...

AI Technical Summary

Problems solved by technology

[0006] The current automotive interior parts with polypropylene as the main material usually have problems such as poor scratch resistance and impact resistance.

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