环氧树脂/有机蒙脱土纳米复合材料的制备与表征  

Preparation and Characterization of Epoxy/Organic-montmorillonite Nanocomposites

作　　者：郭宁[1] 张明艳[1] 张晓虹[2] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,哈尔滨150040 [2]哈尔滨理工大学电气与电子工程学院,哈尔滨150040

出　　处：《绝缘材料》2007年第1期4-7,共4页Insulating Materials

基　　金：国家自然科学基金资助项目(50377009)

摘　　要：分别采用熔融插层法与溶液插层法制备了环氧树脂/有机化蒙脱土纳米复合材料,并对不同工艺条件下制备的复合材料结构进行了表征。用X射线衍射法(XRD)测试了有机化蒙脱土在被插层前后片层间距的变化,用扫描电子显微镜(SEM)观察了复合材料冲击断面相态结构与蒙脱土在有机相中的分散情况。结果表明环氧树脂分子插入到经有机化改性的蒙脱土片层中,蒙脱土在环氧树脂固化过程中剥离成纳米级颗粒,无序的分散在环氧树脂基体中,且溶液插层法更有利于蒙脱土片层的剥离。通过热重分析(TGA)测试发现,溶液插层法制备的试样中残留的溶剂对复合材料的热性能影响很大。The epoxy/organic-montmorillonite （o-MMT） nanocomposite was prepared respectively through the process of melting intercalation and dissolving intercalation. The interlayer spacing of montmoril- lonite before/ after the intercalation treatment, the fracturemorphology of the nanocomposites and the dispersion condition of the o-MMT were investigated by X-ray diffraction （XRD） and scanning electron microscope （SEM）, with the results showing that there was a structure that the epoxy resin had been intercalated into the interlayer of the o-MMT, which dispersed in nano-scale disorderly and had been exfoliated sufficiently. The dissolving process is propitious to the exfoliation of the o-MMT. The thermal stability of the nanocomposites was characterized by thermo-gravimetric analysis （TGA） . The results showed that the solvent remained in the specimen prepared according to dissolve intercalation process changed the thermal performance seriously.

关 键 词：环氧树脂 蒙脱土 纳米复合材料 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]