Sound-absorbing and heat-preserving composite environment-friendly material for automotive upholstery and preparing method of sound-absorbing and heat-preserving composite environment-friendly material

Abstract

The invention discloses a sound-absorbing and heat-preserving composite environment-friendly material for an automotive upholstery. The sound-absorbing and heat-preserving composite environment-friendly material is prepared from, by weight, 100-103 parts of polylactic acid, 3.5-4 parts of nanometer antimonous oxide, 10-11 parts of decabromodiphenyl ethane, 25-27 parts of SEBS, 60-62 parts of hibiscus cannabinus fibers, 10-12 parts of banana fiber paste, 8-9.2 parts of cotton pulp, 2-2.5 parts of epoxy butyl oleate, 7-9 parts of expanded vermiculite, 5-6 parts of cork wood, 5-6 parts of arabic gum and a proper amount of water. According to the sound-absorbing and heat-preserving composite environment-friendly material, the banana fiber paste, the cork wood, the expanded vermiculite and other ingredients are adopted to be prepared into modified powder through a series of processes to be added into preparation of a steeping paste, treated mixed fibers maintain the good bending property, meanwhile, the heat-preserving, sound-insulating and vibration-reducing performance is further improved, and thus the sound-absorbing and heat-preserving composite environment-friendly material can meet the requirement of the functional automotive upholstery and is suitable for producing an instrument table top, a ceiling and the like of an automobile.

Description

technical field [0001] The invention relates to the technical field of automotive interior materials, in particular to a sound-absorbing and heat-preserving composite environmental protection material for automotive interior parts and a preparation method thereof. Background technique [0002] The interior parts of a car generally refer to parts and materials such as partitions, door trim panels, instrument panel assemblies, armrests, and carpets in the car compartment. Compared with other parts on the car, they have little effect on the running performance of the car, but their face can be seen at a glance, representing the image of the whole car, which one is better, determines the reputation and grade of the car, and determines the choice of people. car intent. In addition, for cars, although the interior parts are only some auxiliary parts, they have to undertake functions such as vibration reduction, heat insulation, sound absorption and sound insulation, which play a ...

AI Technical Summary

Problems solved by technology

However, due to the slow crystallization rate of polylactic acid resin, large shrinkage rate of molded products, brittleness, poor thermal stability during processing, and poor durability of products, its application as engineering plastics is limited.