高效氯氰菊酯微乳化分散体系的电导性质  

Electrical conductivity properties of a beta-cypermethrin microemulsified dispersion system

作　　者：黄啟良[1] 张文吉[1] 折东梅[2] 李凤敏[2] 张春华[2] 卜小莉[2] 

机构地区：[1]中国农业大学理学院,北京100094 [2]农业部农药化学与应用技术重点开放实验室中国农业科学院植物保护研究所,北京100094

出　　处：《农药》2006年第8期522-524,共3页Agrochemicals

基　　金：国家自然科学基金资助项目(批准号:30370945);国家科技攻关项目(2004BA520A15-4)

摘　　要：为了明确农药有效成分、水质对农药制剂微乳化形成与稳定的影响,通过测定不同高效氯氰菊酯油-水-表面活性剂分散体系拟三元相图中固定SAA相/油相比例向水角稀释微乳液的电导率,研究了高效氯氰菊酯、水质对微乳液电导行为及结构类型的影响。结果表明:在一定范围内,高效氯氰菊酯原药加入油相中,不同程度地提高了微乳液的电导率,但对微乳液结构类型的影响不显著;与蒸馏水相比,在水量达到微乳液类型由油包水向双连续转变点以后,标准硬水不仅提高了微乳体系的导电能力,同时也使形成水包油型或双连续型微乳液所需水相的最低量明显增加。In order to evaluate the influence of pesticide active ingredient and water quality on pesticide microemulsification formation and stability, research was conducted on the effect of beta-cypermethrin and water quality on microemulsion structure and electrical conductivity behavior by determining the effect on electrical conductivity of dilute microemulsions of fixed SAA phase/oil phase proportions of different beta-cypermethrin oil-water-surfactant dispersion systems from the pseudo-ternary phase diagram. Within a certain range, beta-cypermethrin in the oil phase increased conductivity of the microemulsion to varying degrees, although effects on microemulsion structure were not significant. Compared with distilled water, after the proportion of water reached the water-in-oil bicontinuous conversion point, standard hard water not only increased electrical conductivity of the microemulsion system but also significantly increased the minimum amount of water phase required to form oil-in-water or bicontinuous phase microemulsions.

关 键 词：微乳化 分散体系 拟三元相图 电导率 高效氯氰菊酯 

分 类 号：TQ453[化学工程—农药化工]