Studies on Adsorption of Polyacrylamide on Surface of Silica Gel and the Inhibition of the Adsorption

Abstract

Abstract: In this work an analytical measurement method was established for determining PAM adsorption isothermal curves in the extremely diluted solution, diluted solution and relatively concentrated solution respectively. The adsorption mechanism was also investigated preliminarily. The effects of several organic compounds and an inorganic salt (NaNO₃) as the adsorption inhibitors on the adsorption of PAM on the surface of silica gel were studied. The results indicate that (1) PAM is strongly adsorbed on the surface of silica gel; (2) aminoethyl alcohol, morpholine and sodium nitrate are effective adsorption inhibitors.

Key words: Polyacrylamide, Silica gel, Adsorption, Adsorption inhibitor

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Chen Jiushun, Tan Zhanjie, Meng Xiansheng . Studies on Adsorption of Polyacrylamide on Surface of Silica Gel and the Inhibition of the Adsorption[J]. Chem. J. Chinese Universities, 1990, 11(8): 915.

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Studies on Adsorption of Polyacrylamide on Surface of Silica Gel and the Inhibition of the Adsorption

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