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报道了消泡剂ＴＢＰ（Ｔｒｉｂｕｔｙｌｐｈｏｓｐｈａｔｅ）对起泡剂Ｃ１２Ｅ８（Ｏｃｔａｅｔｈｙｌｅｎｅｇｌｙｃｏｌｍｏｎｏｄｏ－ｄｅｃｙｌｅｔｈｅｒ）表面吸附性质和表面弹性的影响．文中通过对理想表面模型－Ｌａｎｇｍｕｉｒ－Ｓｚｙｓｚｋｏｗｓｋｉ吸附等温线和非理想表面模型－Ｆｒｕｍｋｉｎ吸附方程的研究，得出起泡剂Ｃ１２Ｅ８溶液表面吸附－脱附活化能与吸附量有关的结果，并且阐明了Ｃ１２Ｅ８浓度小于ｃｍｃ时消泡剂ＴＢＰ的消泡机理．可以认为ＴＢＰ降低了Ｃ１２Ｅ８的表面吸附量以及表面吸附和脱附活化能，有利于表面张力梯度的修复是通过变形表面下溶液分子的直接吸附，从而削弱其表面弹性，降低泡沫的稳定性
The effect of TBP (Tributylphosphate) on the surface adsorption properties and surface elasticity of C12E8 (Octaethyleneglycolmonodo-decylether) was reported. In this paper, through the study of the Langmuir-Szyszkowski adsorption isotherm and the non-ideal surface model-Skinkin adsorption equation, the adsorption-desorption activation energy of the surface of the C12E8 solution was obtained, and the results of C12E8 Defoaming mechanism of defoamer TBP when the concentration is less than cmc. TBP can be considered to reduce the surface adsorption of C12E8 and the surface adsorption and desorption activation energy is conducive to the repair of surface tension gradient molecules through direct adsorption of molecules under the surface of the deformation, thereby weakening the surface elasticity and reduce the foam stability