摘要
采用柠檬酸三丁酯(TBC)、聚乙二醇(PEG)增塑聚乳酸(PLA)/热塑性淀粉(TPS)共混体系,调节PLA的流变性能,改善PLA与TPS相容性、熔融共混特性和共混物的微观结构和力学性能。结果表明:TBC的改性效果比PEG更佳;TBC能增加TPS分散均匀性,相分散尺寸明显变小;TBC改性PLA/TPS的拉伸强度和断裂伸长率明显提高,吸水率较小。
Two plasticizers, tributyl citrate （TBC） and polyethylene glycol （ PEG）, were employed to plasticize poly （ lactic acid） （PLA） blend/thermoplastic starch （ TPS）, regulated the rheological properties, improved the compatibility of PLA and TPS, melt blending properties, microstructure and mechanical properties. The results indicated that： the modification effectiveness of TBC was remarkabler than that of PEG; TBC could increase better TBC dispersion, and the disperse size phase became smaller; The tensile strength and the elongation at break of the PLA/TPS blend modified by TBC improved obviously, but the water absorp- tion was smaller.
出处
《塑料工业》
CAS
CSCD
北大核心
2009年第11期51-54,共4页
China Plastics Industry
关键词
聚乳酸
热塑性淀粉
增塑剂
柠檬酸三丁酯
聚乙二醇
结构
性能
Poly （lactic acid ）
Thermoplastic Starch
Plasticizer
Tributyl Citrate
Polyethylene Glycol
Structure
Property
