中国塑料2017，Vol.31Issue(1)：29-35,7.DOI:10.19491/j.issn.1001-9278.2017.01.006
PLA／PHBV共混改性研究
Study on Blending Modification of PLA/PHBV
摘要
Abstract
Poly (L-lacticacid ) (PLA )/poly (3-hydroxybutyrate-co-3-hydroxyvalerate ) (PHBV ) blends were prepared by a melt-blending method.The effects of PLA/PHBV weight ratio and talc content on the properties of PLA/PHBV blends were investigated.With a continuous increase of PHBV content,the crystallinity degree of the blends showed a decrease at first and then began to increase.The blends achieved an increase by 35.9 % in impact strength and by 21.81 % in elongation at break,whereas the tensile strength was reduced.On the other hand,the crystallinity degree of the blends also increased with increasing talc content and their impact strength increased by 12.4 %,followed by a decrease in tensile strength and elongation at break.The mechanical properties of the blends achieved optimum values with addition of 20 wt %PHBV and 1 .5 wt %talc.关键词
聚乳酸/聚(3-羟基丁酸-共聚-3-羟基戊酸酯)/滑石粉/结晶性能/力学性能Key words
poly(L-lacticacid)/poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/talc/crystallization behavior/mechanical property分类
化学化工引用本文复制引用
段雨婷,许国志..PLA／PHBV共混改性研究[J].中国塑料,2017,31(1):29-35,7.基金项目
广州市科技计划项目（2014YZ-00009）；2016年北京工商大学研究科研能力提升计划项目 （）
