Synthesis and properties of hyper-dispersants  

作　　者：张宝华 杨青 潜飞 叶俊丹 毛志平 徐红 

机构地区：[1]College of Environmental and Chemical Engineering,Shanghai University [2]Key Laboratory of Science and Technology of Eco-Textile, Donghua University

出　　处：《Journal of Shanghai University(English Edition)》2009年第4期283-286,共4页上海大学学报（英文版）

基　　金：supported by the Shanghai Leading Academic Disciplines (Grant No.T0105);the Key Laboratory of Science & Technology of Eco-Textile (Donghua University), Ministry of Education of China

摘　　要：The synthesis and properties of three kinds of hyper-dispersants are studied in this paper, which are non-terminated, carboxyl-terminated and polyethylene imine grafted poly（hydroxyl carboxylic acid） ester. The hyper-dispersants are synthesized by the materials of 12-hydroxy-stearic acid, stearic acid and polyethylene imine, which are used to improve the dispersion properties of nano titanium dioxide （nano-TiO2） in low-concentration resin solution system. The influences of hyper-dispersants on the viscosity and stability of the system are studied. It is found that polyethylene imine grafted hyper-dispersant has the best dispersion performance in nano-TiO2 dispersion system, and the optimal content of the hyper-dispersant is 4%.The synthesis and properties of three kinds of hyper-dispersants are studied in this paper, which are non-terminated, carboxyl-terminated and polyethylene imine grafted poly（hydroxyl carboxylic acid） ester. The hyper-dispersants are synthesized by the materials of 12-hydroxy-stearic acid, stearic acid and polyethylene imine, which are used to improve the dispersion properties of nano titanium dioxide （nano-TiO2） in low-concentration resin solution system. The influences of hyper-dispersants on the viscosity and stability of the system are studied. It is found that polyethylene imine grafted hyper-dispersant has the best dispersion performance in nano-TiO2 dispersion system, and the optimal content of the hyper-dispersant is 4%.

关 键 词：12-hydroxy-stearic acid polyethylene imine hyper-dispersant NANO-TIO2 disperse 

分 类 号：TB383.1[一般工业技术—材料科学与工程]