Starchlike biological degradatable plastic mother material and its preparation method

Abstract

The present invention is biodegradable plastic mother material and its preparation process, and has the features of simple production process, low cost, etc. The biodegradable plastic mother material is prepared with material including starch, starch grafting modifier, bonding resin, bonding resin grafting modifier, bonding resin grafting initiator, lubricating plasticizer, stabilizer, dispersant and degradation assistant. The preparation process includes starch grafting modification, bonding resin grafting modification and other steps. The biodegradable plastic mother material has excellent biocompatibility, high starch content and high biodegrading performance.

Description

Technical field:

[0001] The invention relates to a starch biodegradable plastic masterbatch and a preparation method thereof. Background technique:

[0002] At present, the disclosed starch-based biodegradable plastic masterbatches such as 99100726.3 and 00119372.4 and 01134820.8 and other patents require homogenate impregnation of starch, liquid dehydration, slurry refinement, coupling and high-mix reformation. Sexuality, twin-screw extrusion granulation and other treatments require a large investment in equipment, many processes, and a long production cycle. Moreover, it is only a modified treatment of starch, so that the amount of starch added is small, the hygienic performance is poor, and the cost is high. Invention content:

[0003] The invention solves the defects of large investment, many processes, long production cycle, poor hygienic performance and high cost in the prior art, and provides a starch-based biodegradable plastic masterbatch with simple production pr...