中国塑料Issue(7)：46-50,5.
聚酰胺弹性体增韧聚乳酸改性研究
Study on Polyamide Elastomer Toughened Poly（lactic acid）
摘要
Abstract
Polyamide dastomer（polyamide-polyoxyethylene copolymer, PAE） was used to toughen PLA via melt blending. It was found that a brittle-ductile transition occurred when PAE content was between 20 %-30 %. The maximum impact strength was 67.6 J/m, but the tensile strength and modulus decreased sharply. When the PAE contents were between 5 % -10 %, the blends exhibited the maximal comprehensive strength and toughness with the elongation at break increased by 40 times. SEM micropgraphs showed the blend was phase separated, but the DSC data showed that Tg and Tm changed as PAE content was changed. All the behavior indicated that the blend was partial miscibility for somewhat specific interaction between the two phases. TG data showed that the degradation temperature of PLA increased with increasing PAE content.关键词
聚乳酸/聚酰胺弹性体/增韧/熔融共混Key words
poly(lactic acid)/polyamide elastomer toughening melt blending分类
化学化工引用本文复制引用
张伟,魏发云..聚酰胺弹性体增韧聚乳酸改性研究[J].中国塑料,2012,(7):46-50,5.基金项目
南通市生物技术和新医药计划项目 （）
