摘要
采用溶剂共混的方法制备了聚乳酸(PLA)、聚乙二醇(PEG)、聚己内酯(PCL)共混材料,研究了不同比例的PLA、PEG、PCL共混材料的亲水性、热性能和降解特性。结果表明制备的共混材料为部分相容体系;PEG的加入改善了共混膜的亲水性和加工性;当PEG的质量分数从5%升到20%,共混膜接触角由73.8°下降到66°;PCL的加入能够调节共混膜的降解时间。
Polylactic acid （PLA）/polyglycol（PEG）/polycaprolactone （PCL） blends were prepared by solution blending, and the hydrophilic, thermal properties and degradation of the blends were investigated. The results showed that the blends were partly compatible systems, and the hydrophitie and processing of the blend films could be improved by adding PEG. The contact angle of the blend films decreased from 73.8° to 66° when PEG concentration increased from 5% to 20%. The degradation of the blend films were regulated by the increasing of PCL content.
出处
《大连工业大学学报》
CAS
北大核心
2017年第3期198-200,共3页
Journal of Dalian Polytechnic University
基金
国家自然科学基金项目(21204007)
辽宁省高等学校优秀人才支持计划基金项目(LJQ2014054)
关键词
聚乳酸
聚乙二醇
聚己内酯
共混材料
3D打印
polylactic acid
polyglycol
polycaprolactone
blend
three-dimensional printing
