摘要
日常用的饮料瓶是聚酯（ＰＥＴ）和高密度聚乙烯（ＨＤＰＥ）为原料而制成的，因而聚酯（ＰＥＴ）废塑料瓶是数量较多和回收价值高的一种塑料。本研究首先对聚酯（ＰＥＴ）废塑料瓶进行破碎，然后采用气流分选，清洗净化和水浮选组合工艺进行ＰＥＴ和ＨＤＰＥ及塑纸的分离回收。ＰＥＴ和ＨＤＰＥ的回收率分别为９７％和９５％，同时通过清洗净化可使回收的ＰＥＴ纯度达９６％以上，该ＰＥＴ是一种用途广的优良塑料原料。
The recycles of PET and high density polyethylene (HDPE)from the used plastic drinking bottles made of them were carried out by using a process eomprising steps of:smashing the used bottles into pieces,air seperation,cleaning,and floating.With this process, PET, HDPE and other plastic wastes were effectively seperated and recovered at a rate of 97%for PET and a rate of 95% for HDPE.The recovered PET had a purity of above 95% and could be recycled as a raw material of plastics having a high quality.
出处
《环境科学》
CAS
CSSCI
CSCD
北大核心
1994年第3期26-29,共4页
Environmental Science
关键词
聚酯塑料
聚乙烯
废塑料分离
回收
PET, HDPE, separation and revovery of plastic wastes.
