丝绸2021，Vol.58Issue(10)：28-35,8.DOI:10.3969/j.issn.1001-7003.2021.10.006
热塑性聚氨酯增韧聚乳酸及其熔喷非织造材料研究
Study on toughened polylactic acid and its meltblown nonwovens by thermoplastic polyurethane
摘要
Abstract
Polylactic acid ( PLA ) biodegradable meltblown nonwovens show superior market competitiveness due to its ultrafine fiber structure and environmental friendliness. However, the lack of mechanical toughness of PLA has limited its application. In this paper, high-fluidity thermoplastic polyurethane ( TPU ) was used as the toughening material of PLA to fabricate the PLA/TPU composite masterbatch for the use of melt-blown nonwovens through melt blending method, and its phase structure, thermal-crystallization performance, thermal stability, and the changes in the crystal structure changes were studied, and PLA/TPU meltblown nonwovenswere further prepared. The results show that PLA and TPU are incompatible systems, and although TPU almost has no effect on the crystallization process and crystal structure of PLA, it can reducethe thermal stability of PLA. The mass ratio of TPU blending was less than 20％, and PLA/TPU showed a good the meltblown fabricability. PLA/TPU meltblown nonwovensexhibited superior strength and tensile ductility than single PLA meltblown material.关键词
聚乳酸/热塑性聚氨酯/增韧/熔喷/非织造Key words
polylactic acid/thermoplastic polyurethane/toughening/meltblown/nonwoven分类
化学化工引用本文复制引用
Md Obaidur Rahman,朱斐超,杨潇东,黄瑞杰,汪伦合,刘蕊,徐晓天,于斌..热塑性聚氨酯增韧聚乳酸及其熔喷非织造材料研究[J].丝绸,2021,58(10):28-35,8.基金项目
浙江省自然科学基金项目(LQ21E030013) （LQ21E030013）
浙江理工大学科研启动基金项目(20202293-Y) （20202293-Y）
