摘要
综述了聚乳酸(PLA)发泡材料在包装领域、汽车领域和生物医疗领域的多种应用现状,概括了釜压发泡法、连续挤出发泡法、注塑发泡法以及其他发泡成型法制备PLA发泡材料的成型机理及泡孔结构特点,重点介绍了分子链结构改性、共混改性和微米/纳米级填充改性等较为有效的PLA改性方法,以及各种改性方法所制备的PLA发泡材料的泡孔形态特征。
The wide array of applications for PLA foams,such as packaging,automobiles,and tissue engineering,were introduced.And,various PLA foaming technologies,such as solid-state foaming,extrusion foaming,injection foaming,and other foaming methods,as well as their foaming mechanism,were also listed.Some advanced and effective modification methods,including chain branching of PLA molecular,blending with other polymers,and filling with micror/nano-size particles,were dealt with.And,the cellular structures induced by the modifications of PLA were also introduced.
出处
《中国塑料》
CSCD
北大核心
2015年第6期13-23,共11页
China Plastics
基金
贵州省科技厅贵州理工学院联合基金(黔科合LH字[2014]7372号)
高层次人才科研启动基金(XJGC20141103)
关键词
聚乳酸
泡沫
生物降解
发泡技术
超临界二氧化碳
poly(lactic acid)
foam
biodegradable
foaming
supercritical carbon dioxide
