标题:Strong and thermally insulating polylactic acid/glass fiber composite foam fabricated by supercritical carbon dioxide foaming
作者:Wang, Jiachang; Chai, Jialong; Wang, Guilong; Zhao, Jinchuan; Zhang, Dongmei; Li, Bo; Zhao, Haibin; Zhao, Guoqun
作者机构:[Wang, Jiachang; Chai, Jialong; Wang, Guilong; Zhao, Jinchuan; Zhang, Dongmei; Li, Bo; Zhao, Haibin; Zhao, Guoqun] Shandong Univ, Minist Educ, Key Lab 更多
通讯作者:Wang, GL
通讯作者地址:[Wang, GL]Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China.
来源:INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
出版年:2019
卷:138
页码:144-155
DOI:10.1016/j.ijbiomac.2019.07.071
摘要:Environmental friendly and non-toxic polylactic acid (PLA) foam exhibits a promising perspective in many areas. However, PIA shows very poor foaming ability. Herein, silane-modified glass fiber (GF) was compounded with PIA to improve its foaming ability. Thanks to the increased melt viscoelasticity and melt strength, and the enhanced crystallization by adding GF, PLA/GF composites show dramatically improved foaming ability, characterized by widened processing window, increased expansion ratio, and improved cellular uniformity. Compared with pure PLA foam, PLA/GF composite foam shows dramatically enhanced mechanical properties in compressive strength and modulus. For foams with the same expansion ratio of 20-fold, the incorporation of 10 wt% GF led to increased compressive strength and modulus by 44.8% and 92.0%, respectively. The PLA/GF composite foam with an expansion ratio of 24.2-fold has a low thermal conductivity of 31.4 mW/m.K, which is comparable with the excellent thermal insulation performance of commercial polymer foams. (C) 2019 Elsevier B.V. All rights reserved.
收录类别:SCOPUS;SCIE
WOS核心被引频次:1
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85069005982&doi=10.1016%2fj.ijbiomac.2019.07.071&partnerID=40&md5=62fbb0ddf32cca4d8c35c6071c099cfb
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