首页|The Crystallization Behavior of L-Poly(lactic acid)/Polypropylene Blends:The Acceleration for Both L-Poly(lactic acid)and Polypropylene

The Crystallization Behavior of L-Poly(lactic acid)/Polypropylene Blends:The Acceleration for Both L-Poly(lactic acid)and Polypropylene

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For a polymer/polymer dismissible blend with two crystallizable components,the crystallization behavior of different components and the reciprocal influences between different crystals are interesting and important,but did not investigate in detail.In this study,the L-poly(lactic acid)/polypropylene(PLLA/PP)blends with different weight ratios were prepared by melt mixing and the crystallization behavior of the blends were investigated.Results showed that the crystalline structures of PLLA and PP were not altered by the composition.For the crystallization of PLLA,both the diffusion of chain segments and crystallization rate were enhanced under the existence of PP crystals.For the crystallization of PP,its crystallization rate was depressed under the existence of amorphous PLLA molecular chains.When the PP crystallized from the existence of PLLA crystals,although the diffusion rate of PP was reduced by PLLA crystals,the nucleation positions were obviously enhanced,which accelerat-ed the formation of PP crystals.This investigation would supply more basic data for the application of PLLA/PP blend.

L-poly(lactic acid)PolypropyleneBlendsCrystallization behaviorCrystallization acceleration

Shuang-Cheng Li、Wei-Jia Zhou、Wen-Jie Wu、Jun Shao、Shui-Liang Chen、Hao-Qing Hou、Sheng Xiang

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College of Chemistry & Chemical Engineering and Nanofiber Engineering Center of Jiangxi Province,Jiangxi Normal University,Nanchang 330022,China

National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education,Jiangxi Normal University,Nanchang 330022,China

Wenzhou Institute,University of Chinese Academy of Sciences,Wenzhou 325001,China

国家自然科学基金国家自然科学基金Major Special Projects of Jiangxi Provincial Department of Science and TechnologyProject of Jiangxi Provincial Department of Education中国博士后科学基金Postdoctoral Science Foundation of Jiangxi ProvinceTechnology Plan Landing Project of Jiangxi Provincial Department of Education

514030892157406020114ABF05100GJJ1702292019M6522822018KY37GCJ2011-243

2024

10.1007/S10118-024-3104-x

高分子科学(英文版)
中国化学会　中国科学院化学研究所

高分子科学(英文版)

CSTPCD
影响因子：0.721
ISSN：0256-7679
年,卷(期)：2024.42(6)