文献类型：期刊文献

英文题名：Preparation of Organo-Montmorillonite Modified Poly(lactic acid) and Properties of Its Blends with Wood Flour

作者：Liu, Ru[1] Yin, Xiaoqian[1] Huang, Anmin[1] Wang, Chen[1] Ma, Erni[2]

第一作者：刘如

通信作者：Huang, AM[1];Ma, EN[2]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, MOE Key Lab Wooden Mat Sci & Applicat, Qinghua East Rd 35, Beijing 100083, Peoples R China

年份：2019

卷号：11

期号：2

外文期刊名：POLYMERS

收录：;EI(收录号：20190506441368);Scopus(收录号：2-s2.0-85060534361);WOS:【SCI-EXPANDED(收录号:WOS:000460296000018)】；

基金：This study was financially supported by the National Key Research and Development Program of China (No. 2016YFD0600706) and the Fundamental Research Funds for the central Universities of China (Grant No. 2015ZCQ-CL-01).

语种：英文

外文关键词：Dispersion; exfoliated silicate layers; interfacial adhesion; montmorillonite; wood-plastic composites

摘要：In this study, poly(lactic acid) (PLA)/wood flour (WF) composites were prepared by first blending PLA with organo-montmorillonite (OMMT) at different contents (0.5, 1, 1.5, and 2 wt %). The physical and mechanical properties of the virgin and OMMT modified PLA and its WF composites were tested. The results showed that: (1) at low OMMT content (<1 wt %), OMMT can uniformly disperse into the PLA matrix with highly exfoliated structures. When the content increased to 1.5 wt %, some aggregations occurred; (2) after a second extruding process, the aggregated OMMT redistributed into PLA and part of OMMT even penetrated into the WF cell wall. However, at the highest OMMT content (2 wt %), aggregates still existed; (3) the highly exfoliated OMMT was beneficial to the physical and mechanical properties of PLA and the WF composites. The optimal group of OMMT-modified PLA was found at an OMMT content of 0.5 wt %, while for the PLA/WF system, the best properties were achieved at an OMMT content of 1.5 wt %.