塑料科技2024，Vol.52Issue(6)：138-143,6.DOI:10.15925/j.cnki.issn1005-3360.2024.06.026
聚乳酸耐热改性的研究进展
Research Progress on Heat Resistant Modification of Polylactic Acid
摘要
Abstract
Polylactic acid(PLA)is a biodegradable material with good degradability,mechanical properties and processing properties.However,PLA still has some problems such as poor heat resistance,which limits its application and development in the fields with high heat resistance requirements.Heat resistant modification of PLA has become a hot topic in academia and industry.In this paper,the thermal deformation process and modification mechanism of PLA were introduced,and the research progress of thermal modification of PLA was systematically described,including physical blending modification,processing field control,nucleation crystallization optimization,chemical long chain branching and other methods.The current research status of improving thermal resistance of PLA through nucleation crystallization optimization was emphatically discussed,and the advantages and disadvantages of different thermal modification methods were summarized.According to the properties of PLA material and its needs in actual use,it is predicted that its future development direction will focus on high efficiency and environmental protection,long-term stability,composite function and so on.关键词
聚乳酸/耐热性能/物理共混/晶体结构/长链支化Key words
Polylactic acid/Heat resistance/Physical blending/Crystal structure/Long chain branching分类
化学化工引用本文复制引用
陈中碧,郭盛,张秀刚,俞森龙,相恒学,周哲,朱美芳..聚乳酸耐热改性的研究进展[J].塑料科技,2024,52(6):138-143,6.基金项目
中央高校基本科研业务费专项资金资助(2232021D-03),山东省重点研发计划(重大科技创新工程)项目(2023CXGC010611),河南省重大科技专项(231100320200) （2232021D-03）
