摘要
以过氧化二异丙苯为引发剂,甲基丙烯酸缩水甘油酯(GMA)为单体,通过熔融反应制备了聚己内酯(PCL)接枝甲基丙烯酸缩水甘油酯(PCL-g-GMA),用傅里叶红外光谱(FTIR)和核磁共振氢谱(1H-NMR)表征了接枝物的化学结构,并以PCL-g-GMA为增容剂,考察了其添加对竹纤维/聚己内酯(BF/PCL)复合材料结构与性能的影响。研究结果表明,FTIR和1H-NMR分析结果证实了GMA已成功接枝到PCL上。PCL-g-GMA添加后,竹纤维与PCL的界面相容性得到明显改善,复合材料力学性能显著提升,吸水率下降。在PCL-g-GMA添加质量分数为10%时,复合材料拉伸强度、断裂伸长率比未增容BF/PCL复合材料分别增大了80%和70%。
Polycaprolactone-graft-glycidyl methacrylate(PCL-g-GMA)was synthesized by blending the melted PLA with GMA with dicumyl peroxide as initiator.The grafting copolymer was characterized by FTIR and1H-NMR spectroscopic analyses.The effect of PCL-g-GMA addition on the structure and properties of bamboo fiber/polycaprolactone composite was investigated.The result showed that:the GMA was successfully grafted onto polycaprolactone,which was confirmed by FTIR and1H-NMR spectroscopic analyses.The interfacial compatibility,mechanical and water absorption properties were greatly improved by PCL-g-GMA.When10%content of PCL-g-GMA was addied,the bamboo fiber/polycaprolactone composite showed optimal mechanical properties,with an improvement of80%in tensile strength and70%in elongation at break,compared to those without PCL-g-GMA.
作者
龚新怀
赵升云
王兆礼
饶瑞晔
GONG Xinhuai;ZHAO Shengyun;WANG Zhaoli;RAO Ruiye(Bamboo Engineering Technology Research Center of Fujian Province,Fujian Provincial Key Laboratory of Eco-Industrial Green Technology,Ecology and Resources Engineering College,Wuyi University,Wuyishan 354300,Fujian,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2017年第11期4189-4193,共5页
Chemical Industry and Engineering Progress
基金
国家自然科学基金(51406141)
福建省科技厅平台项目(2014N2013)
福建省科技厅引导性项目(2016H0031)
南平市科技计划产业支撑项目(N2015H02)
