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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Wettability, adhesion, adsorption and interface tension in the polymer/surfactant aqueous solution system: II. Work of adhesion and adsorption of surfactant at polymer-solution and solution-air interfaces
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Wettability, adhesion, adsorption and interface tension in the polymer/surfactant aqueous solution system: II. Work of adhesion and adsorption of surfactant at polymer-solution and solution-air interfaces

机译：聚合物/表面活性剂水溶液体系中的润湿性，附着力，吸附和界面张力：II。表面活性剂在聚合物-溶液和溶液-空气界面的粘附和吸附作用

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The values of the surface tension of aqueous solutions of Triton X-100, Triton X-114, Triton X-165, sodium dodecylsulfate, sodium hexadecylsulfonate, cetyltrimethylammonium bromide, cetylpyridinium bromide, sodium N-lauryl sarcosinate, dodecyldimethyethylammonium bromide, tetradecyltrimethylammonium bromide and benzyldimethyldodecylammonium bromide and those of contact angle measured in the polytetrafluoroethylene (polymethyl methacrylate, nylon 6)-solution-air system were applied for the studies of correlation between the adsorption of surfactants at the solution-air and polymer-solution interfaces, critical surface tension of polymer wetting and work of adhesion of aqueous solutions of these surfactants to the above mentioned polymer surfaces. On the basis of the surface tension of aqueous solutions of surfactants studied and polymer-solution interface tension the Gibbs surface excess concentration at the polymer-solution interface was calculated and compared to that at the solution-air one. Using the Gibbs surface excess concentration data the molar fraction of surfactants at the polymer-solution interface was determined and compared to that at the solution-air one. The values of the activity of surfactants at the polymer-solution interface obtained from the Sprow and Prausnitz equation were also compared to those at the solution-air one and next used for calculations of the work of adhesion of solution to the polymer surface. The obtained values were compared to those determined from the Young-Dupree equation.
机译：Triton X-100，Triton X-114，Triton X-165，十二烷基硫酸钠，十六烷基磺酸钠，十六烷基三甲基溴化铵，十六烷基吡啶溴化物，N-月桂基肌氨酸钠，十二烷基二甲基甲基甲基溴化铵和十四烷基十二烷基磺酸铵的水溶液的表面张力值溴化物和在聚四氟乙烯（聚甲基丙烯酸甲酯，尼龙6）-溶液-空气系统中测得的接触角被用于研究表面活性剂在溶液-空气和聚合物-溶液界面的吸附，聚合物的临界表面张力之间的相关性。这些表面活性剂的水溶液润湿并粘附到上述聚合物表面上。根据研究的表面活性剂水溶液的表面张力和聚合物-溶液界面张力，计算出聚合物-溶液界面处的吉布斯表面过量浓度，并将其与溶液-空气界面处的吉布斯表面过量浓度进行比较。使用吉布斯表面过量浓度数据，确定了聚合物-溶液界面上表面活性剂的摩尔分数，并将其与溶液-空气界面上的表面活性剂进行了比较。还将从Sprow和Prausnitz方程获得的表面活性剂在聚合物-溶液界面的活性值与溶液-空气的表面活性值进行了比较，然后将其用于计算溶液对聚合物表面的粘附功。将获得的值与从Young-Dupree方程确定的值进行比较。

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