增容剂对竹纤维/聚己内酯复合材料的界面增容及性能改善  

Compatibilizer improving the interfacial compatibility and properties of bamboo fiber/polycaprolactone composites

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)

机构地区：[1]武夷学院生态与资源工程学院,福建省竹材工程技术研究中心,福建省生态产业绿色技术重点实验室,福建武夷山354300

出　　处：《化工进展》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)

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.

关 键 词：聚己内酯 竹纤维 甲基丙烯酸缩水甘油酯 熔融反应 增容剂 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ327[化学工程—合成树脂塑料工业]