PMMA基稀土发光母料的制备及其性能研究  

Preparation and Properties of PMMA-based Rare Earth Luminescent Masterbatch

作　　者：王振华[1,2] 王佩璋[1] 

机构地区：[1]北京工商大学材料科学与工程系,北京100048 [2]合肥圆融新材料有限公司,安徽芜湖241009

出　　处：《中国塑料》2009年第9期16-20,共5页China Plastics

摘　　要：采用硅烷偶联剂对稀土发光材料进行表面改性。将甲基丙烯酸甲酯、改性后的稀土发光材料和引发剂加入到聚合反应装置中,进行原位乳液聚合,制备聚甲基丙烯酸甲酯(PMMA)基稀土发光母料。红外光谱、热失重、扫描电镜分析表明,PMMA已经成功接枝到稀土发光材料表面,并以片状均匀地包覆于稀土发光材料表面。荧光光谱分析表明,乳液聚合过程中PMMA基稀土发光母料没有改变稀土发光材料的基质,PMMA基稀土发光母料的发光中心与稀土发光材料的相同,激发波长在可见光范围之内。A rare earth luminescent material was modified with silane coupling agent, which was further encapsulated with a layer of poly（methyl methacrylate ） （PMMA） via in-situ emulsion polymerization. FT-IR, TG and SEM showed that PMMA was uniformly grafted on the surface of rare earth luminescence materials forming a thin layer. Such PMMA coated rare earth luminescence materials maintained good fluorescence performance and their original luminescence centers.

关 键 词：聚甲基丙烯酸甲酯 稀土发光材料 母料 硅烷偶联剂 

分 类 号：TQ320.4[化学工程—合成树脂塑料工业]