不同软段类型聚氨酯的土埋法生物降解性能研究  

The Biodegradability Study on Different Soft Segment Types of Polyurethane

作　　者：董飞逸 沈兰萍[1] 何源[1] 

机构地区：[1]西安工程大学,西安710048

出　　处：《聚氨酯工业》2015年第6期38-40,共3页Polyurethane Industry

摘　　要：分别选择以聚左旋乳酸、聚ε-己内酯、聚碳酸亚丙酯、聚己二酸丁二醇酯、聚四氢呋喃为软段原料合成的聚氨酯弹性体材料为对象,用土埋法,通过SEM测试及质量保留率表征其生物降解性能。结果表明,5种聚氨酯材料生物降解性能差异明显,聚左旋乳酸型聚氨酯和聚ε-己内酯型聚氨酯的生物降解能力最高,聚碳酸亚丙酯型聚氨酯和聚己二酸丁二醇酯型聚氨酯次之,聚四氢呋喃型聚氨酯最低。Five different polyurethane elastomer materials made from the soft segment of polylactic acid, poly-ε-caprolactone, polypropylene carbonate, polyadipate terephthalate, polytetrahydrofuran diol were chosen as subjects to test the biodegradability of them in the way of soil burial, with SEM and mass retaining ratio. The results showed that the biodegradability of five polyurethanes varied greatly, biodegradability of PLLA-PU and PCL-PU was the highest, followed by PPC-PU and PBA-PU, PTMEG-PU was the lowest.

关 键 词：低聚物多元醇 可降解聚氨酯 土埋法 生物降解能力 质量保留率 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]