单分散氢氧化钙/聚苯乙烯微球的制备与表征  

Preparation and characterization of monodisperse calcium hydroxide/polystyrene microspheres

作　　者：钟至荣[1] 李红[1] 黄浔[2] 

机构地区：[1]广东工业大学轻工化工学院,广东广州510090 [2]中山大学化学与化学工程学院

出　　处：《无机盐工业》2009年第8期27-29,共3页Inorganic Chemicals Industry

摘　　要：以葡萄糖水溶液为反应介质，在氧化钙消化成氢氧化钙的过程中，加入苯乙烯单体和引发剂，采用原位悬浮聚合法成功制备了聚苯乙烯（PS）包覆氢氧化钙[Ca（OH）2]形成Ca（OH）2／PS微球。考察了葡萄糖水溶液、苯乙烯、稳定剂聚乙烯醇以及反应温度对单分散Ca（OH）2／PS微球的粒径及粒子分散系数的影响，得出较佳合成条件。在较佳条件下制备的Ca（OH）2／PS微球平均粒径为30～40μm，粒子分散系数为0．08～0．10。扫描电镜照片表明，Ca（OH）2／PS具有良好的球形度，表面光滑、无破损。红外光谱表征显示，产物为Ca（OH）2／PS微球。Polystyrene { PS ） coated calcium hydroxide [ Ca { OH ）2 ], namely Ca （ OH ） 2/PS microspheres were successfully prepared by in - situ suspension polymerization method through adding initiator and styrene monomer into glucose-aqueous media when calcium oxide （ CaO） turning into Ca （ OH ） 2. Effects of glucose-aqueous solution, styrene, stabilizer - polyvinyl alcohol { PVA ）, and reaction temperature on particle size and dispersion coefficient of monodisperse Ca （ OH ） 2/PS microspheres were investigated and optimal synthesis conditions were obtained. Ca（ OH）2/PS microspheres with average particle size of 30 ~ 40μm and particle dispersion coefficient of 0.08 -0.10 were obtained under optimal conditions. SEM photos showed that Ca （OH）2/PS has good sphericity, smooth surface and no damage. Infrared spectroscopy （FT- IR） indicated that the products were Ca（ OH} 2/PS microspheres.

关 键 词：氢氧化钙/聚苯乙烯微球 葡萄糖水溶液 原位悬浮聚合 

分 类 号：TQ132.32[化学工程—无机化工]