横晶层对天然纤维增强聚合物复合材料力学性能影响的研究进展  

Research Progress on Effect of Transcrystallinity on Mechanical Properties of Natural Fiber Reinforced Polymer Composites

作　　者：栾玉 任丹 徐丹[1] LUAN Yu;REN Dan;XU Dan(College of Food Science,Southwest University,Chongqing 400715,China)

机构地区：[1]西南大学食品科学学院,重庆400715

出　　处：《材料导报》2021年第5期5195-5198,共4页Materials Reports

基　　金：西南大学博士基金项目(SWU117060);中央高校基本科研业务费(XDJK2019D028)。

摘　　要：天然纤维增强聚合物复合材料被认为是21世纪最有发展前景的材料之一,其中天然纤维作为一种异相成核剂改变了聚合物基质的结晶方式,从而在界面形成横晶层(Transcrystallinity,TC)结构。晶体结构的改变会直接影响复合材料的界面性能及宏观力学性能。许多研究者对TC的生长机制以及TC对复合材料的性能影响进行了深入研究,力求通过结构分析和机理探究对提高天然纤维/热塑性高分子复合材料(Natural fiber/thermoplastic polymer composites,NFTPC)的力学性能提出建设性方案。但由于该结构较为特殊,作用机制较为复杂,目前研究者们对TC的形成机制以及对NFTPC力学性能影响的机理还存在许多分歧。因此,本文重点针对TC对NFTPC力学性能影响的研究进展进行归纳综述和简要分析,对该研究的前景提出展望。Natural fiber reinforced polymer composites are considered to be one of the most promising materials in the 21st century.As a heterogeneous nucleating agent,natural fibers change the crystallization mode of the polymer matrix and form a transcrystallinity(TC)at the interface.The change of crystal structure affects directly the interface properties and macro-mechanical properties of the composites.Many researchers have studied the growth mechanism of TC and the effect of TC on the properties of composites.They tried to put forward constructive proposals for improving the mechanical properties of natural fiber/thermoplastic polymer composites(NFTPC)through the analysis of TC structure and the exploration of theory.However,due to the particularity of structure and the complexity of mechanism,there are still many divergences on the growth mechanism of TC and the mechanism of its effect on the mechanical properties of NFTPC.The research progress of the effect of TC on mechanical properties of NFTPC was summarized and briefly analyzed,and the prospect of the research was putted forward in this paper.

关 键 词：横晶层 天然纤维 热塑性高分子材料 

分 类 号：TB332[一般工业技术—材料科学与工程]