可控-生物降解塑料的研究  

Study on the Controlled Biodegradable Plastics

作　　者：刘永丰[1] 刘伟[1] 

机构地区：[1]辽阳市东华塑料电子研究所,辽宁辽阳111003

出　　处：《精细与专用化学品》2008年第21期30-31,共2页Fine and Specialty Chemicals

摘　　要：聚乙烯塑料薄膜是人们不可缺少的生产、生活资料，它与人们的生产、生活息息相关，也是社会发展和进步的具体体现，由于长时期大量依赖性越来越大的使用薄膜，聚乙烯塑料薄膜危害逐渐从量的积累引起质的变化，已在世界范围内给人类造成了严重后果。This article introduced a kind of master-batch for plastics of controllable bio-degradation, the masterbatch was prepared based on a type of low molecular weight hydrocarbon as biodegradation agent, a thermal oxidative degradation promoter as biodegradation promoter, and a kind of catalyst as enzyme activating agent.The blow moulding film manufactured based on polyethylene containing 20 wt% of this master-batch had been tested by the Inspection Center of Liaoning Environmental Protection Bureau, the results showed that the rate of weight loss of the biodegraded film was 6.0%~6.8% on 28 days exposure in environment while retention rate of breaking elongation of the biodegraded was 0%.The degraded rate would be improved significantly if the amount of used master-batch was up to 40%.The same biodegradation effect was seen in the results of degradation of foamed fast-food tableware made from polystyrene contained 30%~40% of master-batch.

关 键 词：生物降解塑料 聚乙烯塑料薄膜 可控 社会发展 世界范围 依赖性 生产 生活 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]