高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (10): 1738.

• 研究简报 • 上一篇    下一篇

丙烯酸类共聚物对纳米Y-TZP水悬浮液性质的影响

刘阳桥, 高濂, 孙静, 郭景坤   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室, 上海 200050
  • 收稿日期:2000-08-28 出版日期:2001-10-24 发布日期:2001-10-24
  • 通讯作者: 高 濂(1945年出生),男,博士,研究员,博士生导师,从事纳米材料和高温结构陶瓷研究.E-mail:liangaoc@online.sh.cn E-mail:liangaoc@online.sh.cn
  • 基金资助:

    国家重点基础研究发展规划项目(G1999064506)资助

Effect of Acrylate Copolymer on the Properties of Nano-sized Y-TZP Suspension

LIU Yang-Qiao, GAO Lian, SUN Jing, GUO Jing-Kun   

  1. State Key Lab of High Performance Ceramics & Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2000-08-28 Online:2001-10-24 Published:2001-10-24

关键词: Y-TZP, 共聚物, 悬浮液, 吸附, 原子力显微镜

Abstract: An acrylic acid/acrylate ester copolymer was employed as a dispersant for Y-TZPaqueous suspensions. The adsorption of the copolymer on Y-TZPpowder was characterized by using the COD(chemical oxygen demand) method. The addition of this dispersant caused a dramatic increase of the ζ potential in alkaline region and broadened the stable pHregion. SEMand effective diameter analysis showed that the copolymer pronouncedly improved the stability of the suspension. The force-distance curve was measured by using the colloidal probe AFMmethod. The stabilizing mechanism of the dispersant was also discussed.

Key words: YTZP, Copolymer, Suspension, Adsorption, AFM

中图分类号: 

TrendMD: