摘要
将纳米TiO2和有机蒙脱石加入到环氧树脂中,成功地制备出一种在多项性能上都有大幅提高的纳米复合材料。力学性能测试和热分析表明：所得的纳米复合材料在拉伸、冲击、玻璃化转变温度和热分解温度等多项性能上都比纯环氧树脂和有机蒙脱石/环氧树脂纳米复合材料有大幅提高。X射线衍射谱和透射电镜结果表明,在环氧树脂中纳米TiO2与有机蒙脱石同时存在,使蒙脱石层高度剥离,所得的二维蒙脱石纳米单片与零维纳米TiO2颗粒交错分布于树脂基体中,形成了新的微观结构。
A versatile high-performance epoxy nano-composite was prepared via co-incorporating organo-montmorillonite（o-MMT） and nano-sized titanium dioxide（TiO2）into epoxy matrix. Based on the analysis by X-ray diffraction and transmission electron microscopy, The MMT layers in the nano-composite are exfoliated into nano-sized MMT mono-platelets due to the intense interactions among o-MMT, nano-sized TiO2 and epoxy, and the 2-dimensional MMT mono-platelets have an interlacing arrangement with the 0-dimensional nano-sized TiO2 particles in epoxy matrix. Also, the resultant epoxy/o-MMT/nano-sized TiO2 nano-composite has the improved mechanical thermal properties, compared to the pure epoxy and epoxy/o-MMT nano-composites. It is indicated that the co-incorporation of proper, dimensionally different nano-sized particles into polymer matrix could be an effective way for the preparation of versatile high-performance polymer nanocomposites.
作者
李曦
LI Xi(Department of Chemistry and Material,Naval University of Engineering,Wuhan 430033,China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2018年第10期1408-1413,共6页
Journal of The Chinese Ceramic Society
基金
“十三五”装备预先研究项目(10204010307)
海军工程大学理学院基础研究基金项目(HGDLXY17ZK004)
关键词
纳米二氧化钛
有机蒙脱石
环氧树脂
纳米复合材料
维度
nano-sized titanium dioxide
organo-montmorillonite
epoxy
nano-composite
dimensionality
