聚乳酸/纳米纤维素复合材料的制备与性能研究进展  

Progress in Preparations and Properties of PLA/Nanocellulose Composites

作　　者：阳思思 吴红枚[1] 刘玉媛 赵紫薇 吴经芝 陈健 YANG Si-si;WU Hong-mei;LIU Yu-yuan;ZHAO Zi-wei;WU Jing-zhi;CHEN Jian(College of Chemistry and Chemical Engineering,University of South China,Hengyang 421000,China;Hengyang Lidakang Medical Equipment Co.Ltd.,Hengyang 421000,China)

机构地区：[1]南华大学化学化工学院,湖南衡阳421000 [2]衡阳力达康医疗器械有限公司,湖南衡阳421000

出　　处：《塑料科技》2022年第7期124-128,共5页Plastics Science and Technology

基　　金：湖南省2020年度教育厅科学研究项目(20C589);湖南省研究生科学研究创新项目(QL20210219)。

摘　　要：由于聚乳酸(PLA)存在脆性大、韧性低的缺陷,通过纳米纤维素(NC)可改善PLA的力学性能。介绍了NC增强PLA复合材料的制备方法,并总结了NC在界面相容性、力学性能、热稳定性等方面对PLA的影响。研究指出采用熔融共混法制备PLA/NC复合材料,需注意共混时间和温度,NC在PLA中的分散性。采用溶液浇铸法,需注意溶剂的选择。静电纺丝法制备PLA/NC复合材料,需提升电纺效率。探索简单高效的制备方法和绿色加工生产技术,是未来PLA/NC复合材料研究重点关注的方向。Due to the high brittleness and low toughness of polylactic acid(PLA), the mechanical properties of PLA can be improved by nanocellulose(NC). The preparation methods of NC reinforced PLA composites were introduced, and the effects of NC on interfacial compatibility, mechanical properties and thermal stability of PLA are summarized. It is pointed out that the preparation of PLA/NC composites by melt blending method should pay attention to the blending time and temperature, and the dispersion of NC in PLA. The choice of solvent should be paid attention to in solution casting. For the preparation of PLA/NC composites by electrospinning, the electrospinning efficiency needs to be improved. Exploring simple and efficient preparation methods and green processing technology is the focus of future research on PLA/NC composites.

关 键 词：纳米纤维素 聚乳酸 熔融共混 力学性能 

分 类 号：TQ321.2[化学工程—合成树脂塑料工业]