摘要
研究了使用土埋法降解后,经聚乙二醇400改性前后的聚乳酸/热塑性淀粉复合材料其质量和力学性能的变化,进而分析聚乳酸生物复合材料的降解性能。结果表明:在改性前,样条的降解性能随着热塑性淀粉含量的增加而变得更好;经过PEG400改性后,样条的降解率随着PEG400含量的增加而增加,说明PEG400在一定程度上促进了复合材料的降解。
Aftersoil burial degradation,quality and performance changes of the PLA/thermoplastic starch（TPS）blends before and after modification with PEG400 were studied.Results show that：before the modification,degradation performance increases along with increase of TPS content.Afterthe modification with PEG400,degradation rate increases with increase of PEG400 concentration,which indicates that PEG400 can promote degradation of the compound materials in a certain extent.
出处
《当代化工》
CAS
2010年第4期353-356,共4页
Contemporary Chemical Industry
