文献类型：期刊文献

英文题名：Preparation and properties of flexible poly(lactic acid) blend foams

作者：Liu Wei He Shicheng Zhou Hongfu

第一作者：刘伟

通信作者：Liu, W[1];Zhou, HF[2]|[14440e1cfacde39bad4ab]刘伟;

机构：[1]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Beijing Technol & Business Univ, Beijing, Peoples R China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Beijing Technol & Business Univ, China Natl Light Ind Council, Key Lab Proc & Qual Evaluat Technol Green Plast, Beijing 100048, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2018

卷号：37

期号：4-6

起止页码：189-205

外文期刊名：CELLULAR POLYMERS

收录：;EI(收录号：20190306386561);Scopus(收录号：2-s2.0-85059952653);WOS:【SCI-EXPANDED(收录号:WOS:000450439100003)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by National Natural Science Foundation of China (grant number 51703039) and Key Laboratory of Processing and Quality Evaluation Technology of Green Plastics of China National Light Industry Council (Grant Number BS201710).

语种：英文

外文关键词：PLA; PBAT; NPCC; foam; toughening technology

摘要：High-performance poly(lactic acid) (PLA) foam has been recognized as a promising material because of its biodegradability. However, low flexibility and foamability of PLAs has limited its use in different fields. In this study, a blend-toughening technology was used to toughen PLA and prepare flexible foams. The mechanical properties of PLA blends were evaluated, and the cellular structure of these foaming blends was characterized. The results show that the blending components significantly affected the overall mechanical properties and foaming behavior of PLA. The toughness of PLA was enhanced by adding poly(butylene adipate-co-terephthalate) (PBAT) and rigid particles. The rheological behavior of PLA was also affected by adding PBAT. Therefore, the cellular structure of the PLA foams was affected. A constitutive model was also used to fit the experimental results of the compression property of the PLA foam.