| 电解质和pH值对毒死蜱微乳液透明温度范围的影响 |
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| 引用本文： | 李丽芳,孔祥洁,代绍凯,王莉. 电解质和pH值对毒死蜱微乳液透明温度范围的影响[J]. 应用化学, 2010, 27(5): 558-562. DOI: 10.3724/SP.J.1095.2010.90436 |
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| 作者姓名： | 李丽芳 孔祥洁 代绍凯 王莉 |
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| 作者单位： | (山东农业大学1.化学与材料科学学院;2.植物保护学院 泰安 271018) |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金 |
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| 摘 要： | 研究了电解质和pH值对毒死蜱微乳剂透明温度范围的影响,表面活性剂采用特殊苯乙基酚甲醛树脂聚氧乙烯醚和十二烷基苯磺酸钙(DBSCa)(质量比为3:7)复合物,质量分数75%毒死蜱二甲苯溶液为油相。研究结果表明,电解质的加入对表面活性剂作用的微乳剂透明温度范围均有显著影响,使上限温度明显下降;随阳离子电解质质量分数增加,上限温度下降;随阴离子电解质价数增加,上限温度先略增加后下降。电解质及其价数对下限温度影响均不大。弱酸性介质有利于扩大体系的透明温度范围,使上限温度达到最大值;而强酸性和强碱性介质,均使体系的上限温度下降。体系下限温度随pH值的增加缓慢升高。
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| 关 键 词： | 毒死蜱 微乳液；透明温度范围 |
| 收稿时间： | 2009-07-01 |
| 修稿时间： | 2009-10-01 |
Effects of Electrolytes and pH on the Transparent Temperature Region of Chlorpyrifos Microemulsion Systems |
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| LI Li-Fang,KONG Xiang-Jie,DAI Shao-Kai,WANG Li. Effects of Electrolytes and pH on the Transparent Temperature Region of Chlorpyrifos Microemulsion Systems[J]. Chinese Journal of Applied Chemistry, 2010, 27(5): 558-562. DOI: 10.3724/SP.J.1095.2010.90436 |
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| Authors: | LI Li-Fang KONG Xiang-Jie DAI Shao-Kai WANG Li |
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| Affiliation: | (1.College of Chemistry and Material Science;2.College of Plant Protection,Shandong Agricultural University,Tai′an 271018) |
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| Abstract: | Nonionic surfactant of special phenylethyl phenol formaldehyde resin polyoxyethylene ether and anion surfactant of calcium dodecylbenzene sulfonate were used as mixed surfactants with mass ratio at 3 to 7,with chlorpyrifos xylene solusion at 75% mass percentage as oil phase,to form chlorpyrifos microemulsion.The transparent temperature region of the microemulsion was determained by turbidness phenomena when temerpature was slowly raised or desreased.Effects of electrolytes and pH on the transparent temperat... |
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| Keywords: | chlorpyrifos microemulsion transparent temperature region |
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