摘要
热塑性弹性体(TPE)是一类应用领域非常广泛且极具发展潜力的高分子材料,然而目前TPE品种所选用的原料(包括单体或聚合物)绝大部分都是源于石油基不可再生资源。作为一种极具潜力替代石油基高分子的生物基脂肪族聚酯材料,聚乳酸(PLA)具有原料来源丰富并可再生、生物降解性良好、强度和模量高等优点,因此聚乳酸TPE的研究吸引了国内外学者广泛的关注。本文综述了PLA嵌段共聚物型TPE和PLA基动态硫化热塑性弹性体(TPV)的最近的研究进展,详细阐述了它们的制备路线以及材料的性能,最后指出了当前PLA热塑性弹性体研究中存在的不足。
Thermoplastic elastomers(TPEs)are a class of polymeric materials that have widespread applications and development potentials.However,the majority of raw materials(including monomers and polymers)used in the present commercial TPE grades are derived from non-renewable petroleum-base resources.As one kind of biobased aliphatic polyesters with the great potential to replace petroleum-based polymers,poly(lactic acid)(PLA)exhibits many advantages,such as abundant sources of raw materials,excellent biodegradability,and high strength/modulus,etc.Therefore,the research on PLA TPE has attracted extensive attentions from many domestic and foreign scholars.This paper reviewed the latest research progress in the fields of PLA block copolymer-type TPEs and PLA-based thermoplastic vulcanizates.And preparation routes and properties of both TPE materials were presented in detailed,and the existing problems in these TPE studies,was finally pointed out.
出处
《高分子通报》
CAS
CSCD
北大核心
2015年第5期21-35,共15页
Polymer Bulletin
基金
浙江农林大学科研发展基金人才启动项目(No.2013FR088)
关键词
热塑性弹性体
生物基
聚乳酸
嵌段共聚物
动态硫化
Thermoplastic elastomers
Biobased
Poly(lactic acid)
Block copolymers
Dynamic vulcanization