Adsorption of sodium polyacrylate at interface of dicalcium silicate-sodium aluminate solution

作者：Yu Hai yan^*; Pan Xiao lin; Ding Ting ting; Zhang Wu; Liu Han; Bi Shi wen

来源：Transactions of Nonferrous Metals Society of China, 2011, 21(10): 2323-2326.

DOI：10.1016/S1003-6326(11)61015-7

• sodium aluminate solution
• sodium polyacrylate
• dicalcium silicate
• interface
• adsorption

The adsorption isotherm of sodium polyacrylate on dicalcium silicate (2CaO center dot SiO(2)) in sodium aluminate solution at 80 degrees C was studied. The type of surface adsorption of sodium polyacrylate is saturated adsorption, and the adsorption behavior belongs to L-type, according with the monolayer adsorption model of Langmuir equation. The surface coverage of sodium polyacrylate is 1.06 mol/mu m(2). The relation curve between the surface pressure and the molecular area of adsorption film was obtained by Gibbs formula. The variation of interfacial energy caused by adsorption as well as the relationship between the relation curve and the type of adsorption was discussed.

• 出版日期2011-10
• 单位东北大学