静电纺丝法加速聚乳酸水解机理研究  

The Mechanism Investigation of Electrospinning-accelerated Hydrolysis of Polylactic Acid

作　　者：莫锦鹏 李林松 王盈 王靖容 何继银 孙晓伟 马春平 MO Jin-peng;LI Lin-song;WANG Ying;WANG Jing-rong;HE Ji-yin;SUN Xiao-wei;MA Chun-ping(School of Textile Materials and Engineering,Wuyi University,Jiangmen 529050,Guangdong,China;School of Materials and Energy Engineering,Guizhou Institute of Technology,Guiyang 550003,Guizhou,China)

机构地区：[1]五邑大学纺织材料与工程学院,广东江门529050 [2]贵州理工学院材料与能源工程学院,贵州贵阳550003

出　　处：《合成材料老化与应用》2022年第3期30-32,共3页Synthetic Materials Aging and Application

基　　金：江门市基础与理论科学研究类科技计划项目(项目编号:2021030101710004851);广东省科技厅大专项项目(项目编号:2019-252);贵州省教育厅科技拔尖人才支持计划项目(项目号:黔教合KY字[2018]059)。

摘　　要：本研究通过静电纺丝法将聚乳酸制成纳米纤维材料,并通过X射线衍射、红外光谱等手段研究其在中性、酸性及碱性水相环境下的水解机理。结果表明,静电纺丝技术确实可以加快PLA的水解速率。研究分析可知,PLA样品的水解过程包括水解-溶胀-进一步水解等三个阶段,且会导致PLA样品结晶度增大。In this research, polylactic acid nanofi ber was prepared via electrospinning, and hydrolyzed in neutral, acidic and alkaline water environment. The hydrolysis mechanism was investigated via X-ray dif fraction, and infrared spectroscopy. The results show that the electrospinning can indeed accelerate the hydrolysis rate of PLA. Furthermore, this research revealed that the hydrolysis process of PLA samples in three water environment includeds three stages: hydrolysis-swelling-further hydrolysis, which an increase the crystallinity of PLA.

关 键 词：聚乳酸 生物可降解塑料 水解机理 

分 类 号：TQ342[化学工程—化纤工业]