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本文用滴体积法测定了吐温80和海藻酸钠及其混合水溶液的表面张力,求取了临界胶团浓度(CMC)。由CMC与温度关系曲线求出了标准自由能变化、标准焓变化和标准熵变化。
In this paper, the drop volume method was used to determine the surface tension of Tween 80 and sodium alginate and their mixed aqueous solution, and the critical micelle concentration (CMC) was obtained. The standard free energy change, standard enthalpy change and standard entropy change were obtained from the relationship between CMC and temperature.