Cellulose modified polypropylene expanded acoustic material of a kind of acetylation rice straw and preparation method thereof

The cellulose modified polypropylene expanded acoustic material of a kind of acetylation rice straw, it is characterised in that soaked first by alkali, sodium chlorite oxidation, acidleach and high-pressure homogeneous prepare rice straw cellulose；Secondly, acetylation rice straw cellulose is prepared；Then, kaolin is cleaned, microwave radiation activates kaolin surface, obtains the kaolin of surface active；Finally; acetylation rice straw cellulose, the kaolin of surface active, polypropylene, polyvinyl chloride, foaming agent and other auxiliary agents are kneaded together, extruding pelletization, injection compression molding, obtain a kind of cellulose modified polypropylene expanded acoustic material of acetylation rice straw.The polypropylene expanded acoustic material of the present invention, it is cellulose modified using acetylation rice straw, reduce production cost while improving acoustic material mechanical property.