On-line light backscattering tracking of the transitional phase inversion of emulsions☆
On-line light backscattering tracking of the transitional phase inversion of emulsions☆
复制标题
DOI：
10.1016/j.colsurfa.2008.05.041
复制
发表时间：
2009-04
期刊：
影响因子：
--
通讯作者：
A. Pizzino;M. Catté;E. Hecke;J. Salager;J. Aubry
中科院分区：
文献类型：
--
作者：
A. Pizzino;M. Catté;E. Hecke;J. Salager;J. Aubry
搅拌表面活性剂/油/水体系（Brij 30/癸烷/盐水），同时连续改变温度，以诱导乳液形态从O/W到W/O的交换，反之亦然。通过用Turbiscan（在线）设备监测电导率和光背散射来检测过渡相转化。光学技术精确定位的反转，并表现出几个优点的电导率测量：（i）它不需要在水相中添加任何电解质，（ii）它提供了一些关于液滴大小的信息，（iii）它的作品与O/W和W/O形态，而电导率是盲目的后一种情况。
A surfactant/oil/water system (Brij 30/decane/brine) is stirred while continuously changing the temperature in order to induce the swap of the emulsion morphology from O/W to W/O or vice versa. The transitional phase inversion is detected by monitoring both the electrical conductivity and the light backscattering with a Turbiscan (on line) equipment. The optical technique pinpoints the inversion and exhibits several advantages over the conductivity measurement: (i) it does not require any addition of electrolyte in the aqueous phase, (ii) it provides some information on the drop size, and (iii) it works with both O/W and W/O morphologies whereas conductimetry is blind for the latter case.