纳米铜粉在无水乙醇中的分散稳定性  

Research on Dispersion and Stability of Cu Nano-particles in Ethanol

作　　者：邓晓臣[1,2] 罗江山[2] 唐永建[2] 李凯[2] 韩尚君[2] 张洪亮[1,2] 

机构地区：[1]西南科技大学材料科学与工程学院,四川绵阳621010 [2]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《中国粉体技术》2010年第3期54-57,共4页China Powder Science and Technology

基　　金：国家自然科学基金项目;编号:10804101

摘　　要：为了实现纳米颗粒的分级,研究影响纳米铜粉在无水乙醇中分散稳定性的因素。通过测定纳米铜粉分散在无水乙醇中形成的悬浮液的Zeta电位和吸光度,探讨悬浮液中分散剂的加入量和pH值对纳米Cu粉末在无水乙醇中的分散稳定性的影响。结果表明:当质量分数为0.01%的纳米铜粉分散在无水乙醇中,当分散剂加入量为0.008%(质量分数)时,分散稳定性最好。在此条件下,调节pH将降低其分散稳定性。In order to achieve for the classification of Cu nano-particles, the effect factors of dispersion and stability of Cu nano-particles in ethanol were researched. The dispersion and stability of Cu nano-particles in ethanol were studied under different pH values and dispersant concentration by the method of Zeta potential and absorbency. The results showed that when the mass fraction ofCu nano-particles was 0.01%, and the mass fraction of SDBS was 0.008%, the dispersion and stability ofCu nano-particles-ethanol suspension was the best, Under these conditions, regulation ofpH might reduced the dispersion stability.

关 键 词：纳米Cu粉末 分散 ZETA电位 吸光度 

分 类 号：O648[理学—物理化学]