Polylactic acid fiber composite degradable material for automotive interior decoration and preparation method thereof

Abstract

The invention discloses a polylactic acid fiber composite degradable material for automotive interior decoration. The polylactic acid fiber composite degradable material is prepared from, by weight, 100-103 parts of polylactic acid, 3.5-4 parts of nano antimony trioxide, 10-11 parts of decabromodiphenyl ethane, 25-27 parts of SEBS, 60-62 parts of kenaf fiber, 2-3 parts of nano zinc lactate, 4-5 parts of graphene, 8-10 parts of carbonized coffee grounds, 2-3 parts of amino silicone oil, 2-3 parts of a melamine formaldehyde resin solution, 5-6 parts of polyvinyl alcohol, an appropriate amount of water and 2-3 parts of cellulose ether. By modifying the blend fiber through dipping slurry and adding the graphene, the carbonized coffee grounds, the melamine formaldehyde resin solution and the like into the dipping slurry, the specific surface area of the blend fiber is enlarged through a series of process modifications, and the polylactic acid fiber composite degradable material has an adsorption effect and further has a good waterproof effect. The modified blend fiber is made into a granular product, the strength and toughness of the product are improved, and meanwhile the product is safe and degradable.

Description

technical field [0001] The invention relates to the technical field of automobile interior materials, in particular to a polylactic acid fiber composite degradable material for automobile interior decoration 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 very important role in ...

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.