【作者】 周震； 张建青；

【Author】 ZHOU Zhen, ZHANG Jian-qing(1. Dept. Printing & Packing Engineering, Beijing Institute ofPritning, Beijing 102600, China; 2. Inner Mongolia School of Light Industries, Baoto, Inner Mongolia 014045, China)

【机构】 北京印刷学院印刷与包装工程系； 内蒙古轻工业学校；

【摘要】 对炭黑颗粒在壬基酚聚氧乙烯醚琥珀酸磺酸钠-醇类溶液中的稳定性问题作了研究,结果发现壬基酚聚氧乙烯醚琥珀酸磺酸钠浓度在某个区间内,炭黑颗粒的稳定性可以得到改善,这是由于表面活性剂分子与醇类分子存在竞争吸附。表面活性剂分子的亲油端吸附在炭黑颗粒表面,醇类分子穿插在表面活性剂分子之间,降低了炭黑颗粒与醇类之间的界面张力,又产生扩散双电层,对炭黑颗粒起到很好的稳定作用。更多还原

【Abstract】 The stability of carbon black particles in the surfactant-alcohol solutions have been researched. A concentration range of the surfactant has been found for well stable carbon black particles solutions. It is due to the adsorption of the surfactant molecules on the surfaces of the carbon black particles. The adsorptions reduces the interfacial energy between particles and the solution and generates diffuse layer, both of which help the stability of carbon black particles in the solutions.更多还原