Polylactic acid-starch foaming material and preparation method thereof

Abstract

The invention discloses a polylactic-starch epispastic material and preparing method, which comprises the following steps: melting the polylactic and starch; mixing up with sparkle to form foam article with water resisting property and high frothing percentage. The invention can reduce the retrogradation of the polylactic, which improves the frothing percentage of the polylactic-starch.

Description

technical field

[0001] The invention relates to the field of foaming materials, in particular to a polylactic acid-starch foaming material and a preparation method thereof. Background technique

[0002] With the development of society, people use more and more disposable packaging, decoration materials, tableware and other disposable materials. The foam packaging materials developed in the early stage are all based on petrochemical products. Although they are cheap, they are not degradable. Very poor, causing so-called white pollution. In order to eliminate white pollution, people have developed photodegradable packaging materials on the basis of petroleum-based polymer materials. Under the action of light, photodegradable materials can be degraded into fine fragments to eliminate visual pollution, but it still takes decades or even hundreds of years for these fragments to be degraded by microorganisms, and the refractory polymer fragments caused by photodegradation Block ...