悬浮聚合聚甲基丙烯酸甲酯／蒙脱土纳米复合材料的制备及表征  

Preparation and Characterization of PMMA/Montmorillonite Nanocomposites by Suspension Polymerization

作　　者：高宏[1] 郑俊萍[1] 王建勋[1] 高珊[1] 姚康德[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《中国塑料》2005年第11期54-57,共4页China Plastics

摘　　要：采用悬浮聚合法制备了聚甲基丙烯酸甲酯／蒙脱土(PMMA／MMT)纳米复合材料,利用X射线衍射仪、透射电子显微镜和傅里叶变换红外光谱等手段表征了复合材料的结构,研究了不同改性剂对复合材料结构的影响。通过热重分析考察了复合材料的热性能。结果表明,通过悬浮聚合可以成功制备剥离型纳米复合材料,PMMA基体与 MMT可以产生较强的相互作用。MMT的加入可以显著提高复合材料的热稳定性。当MMT含量为10％(质量分数,下同)时,PMMA的最大分解温度提高了15℃。Poly （methyl methacrylate）/montmorillonite （PMMA/MMT） nanocomposites were prepared via suspension polymerization. The structure of the nanocomposites was studied using X-ray diffraction, transmission electron microscope, and Fourier transform infrared spectroscopy. The effects of modifiers on the structure of the nanocomposites were also discussed. The thermal stability of the nanocomposites was investigated using thermogravimetric analysis. XRD showed that the exfoliated nanocomposites were successfully prepared via suspension polymerization. PMMA had strong interaction with the modi- fied MMT and its thermal stability was improved.

关 键 词：悬浮聚合 聚甲基丙烯酸甲酯 蒙脱土 纳米复合材料 

分 类 号：TB383.1[一般工业技术—材料科学与工程]