氧化铝水合物在聚苯乙烯上的覆盖  

Covering of Aluminum Hydrous Oxide on Polystyrene Particles

作　　者：张玉亭[1] 郭明林[1] 

机构地区：[1]天津纺织工学院材料科学系,天津300160

出　　处：《物理化学学报》1997年第4期366-369,共4页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金

摘　　要：The prerequisite of covering of aluminum hydrous oxide, obtained by the hydrolysis of acldic alumimum salts in the present of urea, on pre-existing spheric polystyrene particles is that surface of pre-existing particles must be modified by anionic surfactants. Meanwhile, modifiers also accelerate the hydrolysis of aluminum salt, which will induce independent nucleation of aluminum hydrous oxide. Therefore, in order to prevent the formation of aluminum hydrous oxide particles, the amount of surf hce modifier should be correctly contolled.The prerequisite of covering of aluminum hydrous oxide, obtained by the hydrolysis of acldic alumimum salts in the present of urea, on pre-existing spheric polystyrene particles is that surface of pre-existing particles must be modified by anionic surfactants. Meanwhile, modifiers also accelerate the hydrolysis of aluminum salt, which will induce independent nucleation of aluminum hydrous oxide. Therefore, in order to prevent the formation of aluminum hydrous oxide particles, the amount of surf hce modifier should be correctly contolled.

关 键 词：聚苯乙烯 表面改性 覆盖 氧化铝水合物 胶体粒子 

分 类 号：O632.13[理学—高分子化学] O614.31[理学—化学]