关于水系超细(含纳米)YSZ粉体颗粒的表面聚合及分散研究  

Surface Polymerization and Dispersion of Aqueous Ultrafine(Including Nanosized) YSZ Particles

作　　者：沈国阳[1] 吴也凡[1] 

机构地区：[1]景德镇陶瓷学院,江西景德镇333001

出　　处：《中国陶瓷工业》2011年第5期4-7,共4页China Ceramic Industry

基　　金：国家自然科学基金(编号:51162014);科技部国际科技合作计划(编号:2009DFA51210);江西省科技支撑计划(编号:2009ZDG05200);江西省自然科学基金(编号:2010GZH0083)

摘　　要：提出的在陶瓷粉体颗粒表面吸附有机物单体(如丙烯酸、甲基丙烯酸、丙烯胺、丙烯酰胺、乙烯吡咯烷酮等单体)分子,然后加入适当的引发剂,在球磨分散过程中,由于球磨子的碰撞,可将能量传递给吸附在颗粒表面的引发剂,从而引发单体在颗粒表面的聚合,形成只有链轨构象而没有链环构象的分散方式,不会造成桥连及絮凝,并消除粉体颗粒的个体表面差异,从而有利于制备高固含量的稳定均匀分散的流延浆料。Organic monomers of acrylic acid,methacrylic acid,allylamine,acrylamide,vinypyrrolidone,etc.were adsorbed onto the surface of the ceramic particles.Then an appropriate initiator was added.In the dispersion process by ball-milling,energy could be transferred to the initiator adsorbed on the particle surface due to the collision of the balls,thus initiating the polymerization of monomers on the surface.With conformations of caterpillars and none of chains formed in the process,bridging and flocculation would not occur,the surface difference between the individual particles could be eliminated,and a uniformly dispersed stable casting slurry with high solid content could be obtained.

关 键 词：YSZ 表面聚合 构象 

分 类 号：TQ174.1[化学工程—陶瓷工业] TB383.3[化学工程—硅酸盐工业]