详细信息
高分子PVP吸附对胶体Zeta电位的影响
Effect of Polymer Adsorption on ζ Potential and Adsorption Layer Thickness of Silica Gels
文献类型:期刊文献
中文题名:高分子PVP吸附对胶体Zeta电位的影响
英文题名:Effect of Polymer Adsorption on ζ Potential and Adsorption Layer Thickness of Silica Gels
作者:刘梅堂[1];韦园红[1];史济斌[1];刘洪来[1]
机构:[1]华东理工大学化学系,上海200237
年份:2001
卷号:7
期号:2
起止页码:1
中文期刊名:中国粉体技术
外文期刊名:China Powder Science and Technology
收录:CSTPCD
基金:国家自然科学基金! (编号 :2 9736 170 );教育部博士点基金资助项目! (编号 :19990 2 5 10 3)
语种:中文
中文关键词:高分子PVP;二氧化硅胶体;吸附;吸附层;电位法;稳定性
外文关键词:adsorption;polymers;stability;potential
摘要:高分子聚合物PVP在SiO2 胶体颗粒上的吸附将直接影响胶体的稳定性质 ,其中最重要的包括Zeta电位、吸附层厚度等。从温度、pH值、聚合物浓度以及电解质浓度 4个方面考察了以上两方面的变化 ,初步探索了胶体表面Zeta电位变化的一般规律 。
The adsorption of polyvinylpyrroidone(PVP)on SiO 2 particles can affect the stability of silica suspension through ζ potential,adsorption layer thickness and so on.A thoroughly investigation of these factors has been carried out from temperature T,pH values,polymer concentration,electrolyte concentration and molecular weight of adsorbed polymer.The adsorption layer thickness is calculated from ζ potential through the correlation based on stern electric double-layer theory.The variation the of ζ potential and adsorption layer thickness under different conditions is thus obtained.
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