Studies on the Dynamic Surface Tension of Dynol-604

Abstract

Abstract: The dynamic surface tension(DST) of Dynol-604 was measured by using the maximum bubble pressure method. At first the curves of DST with lgt were obtained, then the parameters(t_i, t^*, t_m, γ_m) were obtained from the curves above and R_1/2 can be calculated out. The effects of the concentration of Dynol-604 and temperature on the dynamic surface tension of Dynol-604 have been investigated. The results showed that the dynamic surface activity and adsorption energy of Dynol-604 increased with the increase of temperature and their concentration, and the diffusion energy decreased with the increasing of temperature and Dynol-604 concentration. In a word, the transient and equilibrium surface activities of Dynol-604 are very high.

Key words: Dynol-604, Dynamic surface tension, Temperature, Concentration

CLC Number:

O647.1

TrendMD:

LI Gan-Zuo, CHEN Wen-Jun, GU Qiang, LI Ying, GE Shang-Zheng . Studies on the Dynamic Surface Tension of Dynol-604[J]. Chem. J. Chinese Universities, 2002, 23(11): 2117.

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Studies on the Dynamic Surface Tension of Dynol-604

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