Low VOC polypropylene composite material and preparation and application thereof

Abstract

The invention discloses a low VOC polypropylene composite material and a preparation method and an application thereof. The material is prepared by polypropylene, a filling agent, a smell removing agent, a scraping-proof agent, an antioxygen, a weather-proof agent and a lubricating agent according to part by weight, wherein the smell removing agent is a water-based solution of a polymer surfactant which is adsorbed on a polypropylene carrier; the used smell removing agent is a novel smell removing agent, the melting point of the smell removing agent is 160 DEG C, the boiling point is higher than 100 DEG C; the smell removing agent has the characteristic that the dispersion is uniform, lots of foam of the fused smell removing agent is generated in an extrusion mixing process, the vacuum devolatilization is clean, residue is not generated and the like. The prepared low VOC polypropylene composite material has the characteristics of being UV resistant, scraping resistant, light in smell, less in the VOC residual volume and the like, and is mainly used on automotive trim materials such as an instrument desk, a door plate and a stand column of an automobile.

Description

technical field [0001] The invention relates to the field of automotive modified materials, in particular to a low-VOC polypropylene composite material and its preparation and application. [0002] Background technique [0003] Polypropylene modified materials are widely used in automotive interior parts, including main and auxiliary instrument panels, door panels and pillars, due to their good physical and mechanical properties and processing properties. However, polypropylene modified materials will produce volatile organic compounds (VOC) such as benzene, aldehydes and amines during the synthesis of raw materials, processing and aging, which are harmful to human health. Therefore, in order to reduce the VOC content in special materials for automotive interior decoration, it is necessary to control the raw materials and processing technology. [0004] Patent CN101691435B prepares a low-VOC high-performance PP composite material for automotive interior parts by selecting ...

AI Technical Summary

Problems solved by technology

[0004] Patent CN101691435B prepares a low-VOC high-performance PP composite material for automotive interior parts by selecting low-VOC hydrogen-tuned polypropylene, but it limits the application of polypropylene materials and is not conducive to the elimination of VOC generated during the preparation process

Patent CN101817953B adds an inorganic porous odor adsorbent to prepare a low-emission modified polypropylene composite material, but this method has analysis and balance problems and is not conducive to the elimination of VOC

Patent CN101255252B discloses a low-emission special material for automotive interiors, using low-molecular-weight carbonates as organic repellants, but it is difficult to be compatible with polypropylene resin, and VOC removal is poor

Patent CN102875895A discloses a low-emission polypropylene material and its preparation method and application, using low-boiling VOC detergent and N 2 Air stripping agent, due to the low boiling point and short mixing time, it is difficult for the detergent to be uniform during the mixing process, which is not conducive to the elimination of VOC