Full biological degradable composition and its preparing method and use

Abstract

The fully biodegradable composition consists of modified starch, biodegradable polymer, nanometer reinforcer, plasticizer, lubricant, reactive bulking agent, crosslinking agent and biodegradation promoter. The preparation process includes drying starch and fining modification and plasticizing treatment, mixing with supplementary material, and extrusion and pelletizing in reciprocating single-screw extruder and electric mixer. The composition is completely biodegradable, has high adaptability, easy use, wide use range and low cost, and may be used directly as resin or mixed with other resin.

Description

Technical field

[0001] The present invention relates to a completely biodegradable composition, as well as a preparation method and use of the composition. Specifically, it is a fully biodegradable composition using starch and biodegradable polymers as basic and main raw materials and its preparation method and use. Background technique

[0002] In the current increasingly widespread use of plastic materials and products, as well as the environmental protection problems caused by the traditional plastic industry and the resource shortage problems based on the petroleum industry, out of considerations of environmental protection and the search for alternative resources and resource recycling, research and The application of biodegradable materials has become an inevitable trend and focus in the development of the plastics industry.

[0003] The development of degradable plastics has generally gone through two stages: the first stage is the stage of photodegradable plastics a...