聚甲基丙烯酸甲酯/Laponite复合材料制备及表征  

Preparation and Properties of PMMA/Laponite Nanocomposites

作　　者：董志[1] 吴文涛[1] 余坚[2] 李妍妍[1] 卢茂骥 

机构地区：[1]合肥工业大学资源与环境管理学院,安徽合肥230009 [2]中国科学院化学研究所工程塑料实验室,北京100190

出　　处：《广东化工》2014年第13期98-99,共2页Guangdong Chemical Industry

基　　金：安徽省自然科学研究重大项目(项目编号:KJ2014ZD23)

摘　　要：通过溶剂交换法将Laponite从水中转移到N,N二甲基乙酰胺(DMAC)中,辅助以超声波作用使Laponite与聚甲基丙烯酸甲酯(PMMA)溶液进行共混复合制备PMMA/Laponite复合材料,并表征其相关性能。A serious of PMMA/Laponite nanocomposites were prepared by following two steps： （1） solvent-exchange approach to efficiently exfoliate Laponite into DMAC. （2） Laponit insert into PMMA by ultrasound. The structure and properties of the nanocomposites were characterized by SEM, UV-Vis, TGA, DSC and DMA. The results of SEM shows that the PMMA/Laponite nanocomposites have a layer structure, and the XRD results indicated that Laponite was exfoliated into individual layers and uniformly dispersed in the PMMA. The TGA results show that the Tdmax increased from 406 ℃to 419 ℃, When the mass ration of PMMA/Laponite is 100/8. The Laponite also improved the glass transition and storage modulus which confirmed by DSC and DMA.

关 键 词：聚甲基丙烯酸甲酯 LAPONITE 溶剂交换 

分 类 号：TS543[轻工技术与工程—皮革化学与工程]