Views: 473 Author: TH-CS1 Publish Time: 2018-05-15 Origin: Site
Biodegradable plastics synthesized by microorganisms, referred to as biodegradable plastics, include biological polyester, biological cellulose, polysaccharides and polyamino acids, etc., which can be completely degraded by microorganisms in nature.
1.PLA, also known as polylactide, is chemically synthesized from lactic acid, a microbial fermentation product. After use, it can be degraded automatically and won't pollute the environment.
2.Starch-plastics
Starch in more than 90%, the addition of other components can be completely degraded. The production principle of whole starch plastic is to make starch molecules textured and disordered, forming starch resin with thermoplastic energy, so it is also called thermoplastic starch plastic.
3.Photodegradable plastic
Photodegradable plastics can be divided into synthetic degradable plastics and additive degradable plastics according to the manufacturing method.
a.Ethylene/carbon monoxide copolymer (E/CO)
b.Polyvinyl/vinyl ketone copolyte
Additive photodegradable plastics
Better photodegradability can be obtained by adding ketones, amines and other photosensitizers to polymers such as PE and PP.
