摘要
以自制的纳米锑掺杂氧化锡(ATO)为原料,采用阴离子、阳离子以及非离子型表面活性剂为分散剂制备了分散稳定的纳米ATO浆料,考察了分散剂用量、悬液pH值对纳米锑掺杂氧化锡(ATO)悬液分散稳定性的影响,将纳米ATO悬液球磨40min后对悬液纳米ATO的粒径、介质pH值、Zeta电位、沉降性能、分散机理进行了研究并通过透射电镜(TEM)进行了观察.研究表明:在pH=6.5～8.5时,添加0.6(wt)%聚丙烯酸钠(SPA),纳米ATO颗粒在水中呈现良好的分散状态,悬液分散稳定性能好,静置120h以上悬液没有发生明显的沉降.
In this study, a dispersed stable suspension of nano-sized antimony doped tin oxide（ATO） was prepared by dispersing nano-siezed ATO with anion, cationic or nonionic surfactants. According to the theory of dispersion stability, ball mill was carried out by about 40 min on the ATO dispersion with different dispersants. The influence of the sort and concentration of dispersants,pH, zeta potential, and dispersed mechanism were investigated. The results showed that stable ATO suspension can be obtained after being milled for 40 min by adding about 0.6wt% anionic dispersant of sodium polyacrylate, keeping pH value at 6.5～8.5 in deionic water. The particles of nano-sized ATO was dispersed well, and no obvious changes were observed after the suspension was settled for 120 h.
出处
《陕西科技大学学报（自然科学版）》
2010年第3期35-39,共5页
Journal of Shaanxi University of Science & Technology
