期刊论文

Wu, Y.-Q.

中文

功能材料

1001-9731

2013

44

2

253-257

湖南省科技重大专项资助项目（2011FJ1006） 湖南省市校产学研合作产业化培育资助项目（11cy027） 引进国际先进林业科学技术计划资助项目（2009-451）

本校为第一且通讯机构

分别采用碱(NaOH)处理、异氰酸酯(MDI)处理以及NaOH+MDI处理的界面调控方法对竹纤维/聚乳酸复合材料界面进行调控。结果表明,3种界面调控均改善了竹纤维/聚乳酸复合材料界面粘接性能、拉伸强度、冲击强度和防水性能;界面调控后,复合材料的粘流活化能增加,而热流动性因竹纤维与聚乳酸交联变得困难;复合材料玻璃转化温度和结晶温度升高,熔融峰变窄;复合材料热降解温度升高,热稳定性增加。NaOH+MDI联合对竹纤维/聚乳酸复合材料界面调控效果最好,对复合材料的性能影响最显著。

In this study, three interface treatments of alkali (NaOH), isocyanate (MDI) and the combination of alkali and isocyanate were used as control methods on the composites interface of the bamboo fibers (BF) and polylactic acid (PLA), respectively. The results showed that all of the three kinds of the interface control methods could improve the interface adhesion properties, tensile strength, impact strength and water resistance of BF/PLA composites; after interface control, viscous flow activation energy of composites increased, but thermal flow became somewhat difficult due to crosslinking betw...