Friberg Stig E
Chemistry Department, Yangzhou University, Jiangsu 225002, PR China.
J Colloid Interface Sci. 2009 Aug 15;336(2):786-92. doi: 10.1016/j.jcis.2009.04.093. Epub 2009 May 12.
The evaporation path for emulsions of phenethyl alcohol stabilized by a non-ionic surfactant, Laureth 4, a commercial ethoxy adduct, approximately C(12)(EO)(4), was estimated by calculations using the phase diagram. The results for emulsions with an O/W ratio equal to or greater than 1/3 showed the relative humidity only in excess of 90% to have a significant effect on the evaporation path. In fact the path was not significantly modified for relative humidities from 0% to 90%, but in the range 90-100% the modification of the evaporation path was most pronounced; not only altering the path, but causing entirely different phases to appear in the emulsion. On the other hand, for emulsions with lower O/W ratios these effects were substantial for relative humidities down to the level of 40%.
通过使用相图进行计算，估算了由非离子表面活性剂月桂醇聚醚4（一种商业乙氧基加合物，近似为C(12)(EO)(4)）稳定的苯乙醇乳液的蒸发路径。对于油/水比等于或大于1/3的乳液，结果表明仅相对湿度超过90%时才会对蒸发路径产生显著影响。实际上，对于0%至90%的相对湿度，蒸发路径没有明显改变，但在90 - 100%的范围内，蒸发路径的改变最为显著；不仅改变了路径，还导致乳液中出现完全不同的相。另一方面，对于油/水比更低的乳液，这些影响在相对湿度低至40%时就很显著。
