物理化学学报 >> 1997, Vol. 13 >> Issue (01): 74-78.doi: 10.3866/PKU.WHXB19970116

研究简报 上一篇    下一篇

乳状液法制备憎液溶胶 I.BaCO3均匀粒子的制备

于洺,张玉亭   

  1. 天津纺织工学院材料科学系,天津 300160
  • 收稿日期:1996-06-07 修回日期:1996-09-27 发布日期:1997-01-15
  • 通讯作者: 张玉亭

Preparation of Hydrophobic Sols by Method of Emulsion

Yu Ming,Zhang Yu-Ting   

  1. Tianjin College of Textile Technology,Tianjin 300160
  • Received:1996-06-07 Revised:1996-09-27 Published:1997-01-15
  • Contact: Zhang Yu-Ting

关键词: 乳状液, 水池效应, 水相比, 碰撞聚集

Abstract:

Uniform colloidal particles of BaCO3 are produced in the system of n-octanol, BaCl2 and Na2CO3 aqueous solutions under the action of hexadecyltrimethyammonium bromide(CTAB) by the methods of single-emulsion, double-emulsion, solution and gas-blasting. The key factors, which determine the size, shape and uniformity of the particles, as well as the suitable methods to prepare uniform colloidal particles are figured out by comparing different (water-oil) phase ratios, kinetics of particles' growth and different methods of preparing hydrophobic sols.

Key words: Emulsion, Pool-effect, Phase ratio, Collision coagulation