Synthesis and properties of hyper-dispersants

• Published in: Journal of Shanghai University Vol. 13; no. 4; pp. 283 - 286
• Main Author: 张宝华 杨青 潜飞 叶俊丹 毛志平 徐红
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai University Press 01.08.2009; College of Environmental and Chemical Engineering,Shanghai University,Shanghai 201800,P.R.China; Key Laboratory of Science and Technology of Eco-Textile,Donghua University,Shanghai 201620,P.R.China%College of Environmental and Chemical Engineering,Shanghai University,Shanghai 201800,P.R.China%Key Laboratory of Science and Technology of Eco-Textile,Donghua University,Shanghai 201620,P.R.China
• Subjects: Classical Mechanics; Engineering; Environment; Environmental and Chemical Engineering; Life Sciences; Materials Science; Mathematical and Computational Engineering; Mechatronics; 分散性能; 合成材料; 系统稳定性; 纳米二氧化钛; 羟基羧酸; 聚乙烯亚胺; 色散特性; 超分散剂; disperse; polyethylene imine; hyper-dispersant; nano-TiO; 12-hydroxy-stearic acid; nano-TiO2
• ISSN: 1007-6417; 1863-236X
• DOI: 10.1007/s11741-009-0406-1

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%.