不同稳定机制对SiC颗粒分散稳定性的影响  

Effect of Different Stabilization Mechanism on Dispersion Stabilization of SiC Powders in Water

作　　者：邓斌[1] 李强国[1] 胡正水[2] 侯耀永[2] 

机构地区：[1]郴州师范高等专科学校化学系,湖南郴州423000 [2]青岛科技大学应用化学系,山东青岛266042

出　　处：《湖州师范学院学报》2003年第3期55-58,共4页Journal of Huzhou University

基　　金：湖南省教育厅科技处基金项目 (0 1C0 10 )

摘　　要：选用纳米级SiC颗粒为原料 ,分别采用单一静电稳定机制、加入PEG的空间位阻稳定机制和加入PMAA-NH4的电空间稳定机制 ,制备固相体积分数为 1vol%的SiC水悬浮液 ,通过Zeta电位、沉降实验和粘度测定及粒度分析等手段 ,最终分别获得了碱性条件下高分散、高稳定的SiC水悬浮液 .1vol% nano-SiC aqueous suspensions were obtained by different colloidal stabilization mechanism including singleekectrostatic, steric( by PEG ) and electrosteric( by PMAA-NH_4).These suspensions were studied by means of Zeta potential measurements. Sedimentation experiments viscosity measurements and particle-size analysis etc. At last, we obstained the highy dispersed and stabilized nano-SiC squeous suspensions in alkaline condition.

关 键 词：SiC水悬浮液 静电稳定 空间位阻稳定 电空间稳定性 

分 类 号：O614.411[理学—无机化学]