化工学报Issue(10)：4197-4202,6.DOI:10.3969/j.issn.0438-1157.2014.10.059
聚乳酸/环氧大豆油共混物的性能
Properties of poly(lactic acid)/epoxidized soybean oil blends
摘要
Abstract
Poly(lactic acid) (PLA) and epoxidized soybean oil (ESO) was melt blended to prepare the PLA/ESO blends with high toughness. The effects of ESO contents on the phase morphologies, mechanical and rheological properties of the prepared PLA/ESO blends were investigated. The introduction of ESO significantly decreased melt viscosity and improved toughness of PLA. The PLA/ESO blend with low ESO content (10%) was a partially miscible system, whereas that with high ESO content (20% and 30%) exhibited distinct phase separation. Elongation at break and impact strength of the blends increased firstly and then decreased with increasing ESO content. The former reached the maximum value (17 times that of PLA) at ESO content of 20%, and the latter reached the maximum value (2.9 times that of PLA) at ESO content of 15%. Tensile strength of the blends decreased with increasing ESO content.关键词
聚乳酸/环氧大豆油/熔融共混/力学性能/流变学性能/相形态Key words
poly(lactic acid)/epoxidized soybean oil/melt blended/mechanical properties/rheological properties/phase morphology分类
化学化工引用本文复制引用
赵永青,陈福泉,冯彦洪,瞿金平..聚乳酸/环氧大豆油共混物的性能[J].化工学报,2014,(10):4197-4202,6.基金项目
广州市科技计划项目（2014J4100012）；聚合物成型加工工程教育部重点实验室开放课题（2013006）；制浆造纸工程国家重点实验室开放基金项目（201373）；中央高校基本科研业务费项目（2014ZB0019）。 （）
