不同因素对高效氯氟氰菊酯微乳液相图的影响

通过电导率的测定研究了高效氯氟氰菊酯微乳液的结构及结构转变, 绘制了不同条件下高效氯氟氰菊酯微乳体系的拟三元相图, 讨论了十二烷基苯磺酸钠(SDBS)摩尔分数、电解质浓度、温度等因素对各类型微乳区形成的影响. 结果表明: ①随着SDBS摩尔分数增大, W/O型微乳区面积先减小后增大, BC和O/W型面积先增大后减小; ②随着电解质浓度增大, W/O、BC和O/W型微乳区面积均先增大后减小; ③随着温度升高, W/O型微乳区面积增大, BC和O/W型面积均减小.

Effect of Different Factors on Phase Behavior in Cyhalothrin Microemulsion

The microstructure of cyhalothrin microemulsion was studied by means of conductivity measurement, and pseudo ternary phase diagrams were presented. The formation mechanism of cyhalothrin microemulsion was studied, with particular emphasis on the effects of molar fraction of sodium dodecylbenzene sulfonate(SDBS), electrolyte mass concentration and tempreture on cyhalothrin microemulsion. It has been found that: ①with the increase of molar fraction of SDBS, the areas of BC and O/W type microemulsion region increased first and decreased afterwards, while the W/O type decreased first and increased afterwards; ②with the increase of electrolyte mass concentration, the areas of W/O , BC and O/W type microemulsion region all increased first and decreased afterwards; ③with the increase of tempreture, the areas of BC and O/W type microemulsion region decreased, while the W/O type increased.