水基型氯氰菊酯微乳剂的性质和铺展动力学

引用本文: 张龙, 韩晶晶, 李佳佳, 刘天晴. 水基型氯氰菊酯微乳剂的性质和铺展动力学[J]. 物理化学学报, 2013, 29(02): 346-350. doi: 10.3866/PKU.WHXB201211302 shu

Citation: ZHANG Long, HAN Jing-Jing, LI Jia-Jia, LIU Tian-Qing. Properties and Spreading Kinetics of Water-Based Cypermethrin Microemulsions[J]. Acta Physico-Chimica Sinica, 2013, 29(02): 346-350. doi: 10.3866/PKU.WHXB201211302 shu

水基型氯氰菊酯微乳剂的性质和铺展动力学

基金项目:
国家自然科学基金(20573091) (20573091)

江苏省高校优势学科建设工程资助项目

摘要:

采用乳化水加油法, 以正丁酸乙酯为溶剂, 曲拉通X-100 (TX-100)、十二烷基苯磺酸钠(SDBS)为表面活性剂, 正丁醇为助表面活性剂, 制备水基型氯氰菊酯微乳剂. 通过相图法、负染电镜、电导率、表面张力法、动态光散射、表面接触角测定等手段对所制备的氯氰菊酯微乳剂的结构和性质进行了表征, 研究了该微乳剂在杨福麦叶面的铺展动力学. 结果表明所制备的氯氰菊酯微乳剂为水包油型(O/W), 该微乳剂对氯氰菊酯有较好的增溶效应, 具有较低的接触角和表面张力, 液滴半径在45 nm左右; 微乳剂在杨福麦叶面的铺展动力学恰好符合二级动力学方程, 速率常数分别为0.1090 (°)^-1·min^-1 (20℃)和0.1572 (°)^-1·min^-1 (30℃), 活化能为27.03 kJ·mol^-1.

关键词:

English

Properties and Spreading Kinetics of Water-Based Cypermethrin Microemulsions

1.
1 School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu Province, P. R. China;
2 Jiangsu Animal Husbandry and Veterinary College, Taizhou 225300, Jiangsu Province, P. R. China
Received Date: 16 September 2012
Available Online: 14 January 2013
Fund Project:
国家自然科学基金(20573091)

江苏省高校优势学科建设工程资助项目

Abstract:

Water-based cypermethrin microemulsions were prepared by adding oil to emulsified water, with ethyl butyrate as the solvent, TritonX-100 (TX-100) and sodium dodecyl benzene sulfonate (SDBS) as surfactants, and n-butyl alcohol (n-C₄H₉OH) as a co-surfactant. The structure and properties of the microemulsions were investigated by determining the phase diagram, and using negative-staining transmission electron microscopy, and conductivity, surface tension, dynamic light scattering, and contact angle measurements. The spreading kinetics of the microemulsions on the leaf surface of Youngfu wheat was also studied. The results showed that the cypermethrin microemulsions followed the oil-in-water model, and had a strong solubilizing effect on cypermethrin. The microemulsions showed a low contact angle, and low surface tension, and the droplet radius was about 45 nm. The kinetics for the spreading of the microemulsions on the leaf surface of Youngfu wheat fitted a second-order kinetic equation. The kinetic rate constants were 0.1090 (°)^-1·min^-1 (20℃) and 0.1572 (°)^-1·min^-1 (30℃), and the activation energy was 27.03 kJ·mol^-1.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

水基型氯氰菊酯微乳剂的性质和铺展动力学

English

Properties and Spreading Kinetics of Water-Based Cypermethrin Microemulsions

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

水基型氯氰菊酯微乳剂的性质和铺展动力学

English

Properties and Spreading Kinetics of Water-Based Cypermethrin Microemulsions

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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