淀粉—聚乙烯生物可降解塑料的研究

STUDY ON STARCH-POLYETHYLENE BIODEGRADABLE PLASTICS

分别采用聚合物胶乳、淀粉接校共聚物或变性淀粉作为相容剂,对淀粉与聚乙烯共混物的力学性能和可生物降解性进行了研究。实验结果表明,加入这三种物质均能明显地提高共混物的力学性能,用该共混物吹塑的薄膜也具有良好的生物可降解性。

The mechanical properties and biodegradability of the blend of starch and polyethylene have been investigated respectively with polymer latex,starch grafted copolymers and modified starches as compatibilzers.The experimental resnlts show that the mechanical properties of the blends can be increased obviously by adding these three compatibilizers, and meanwhile the blow films made from these blends are of good biodegradability.