Pickering乳液在菊酯类农药水乳液中的应用  

Application of Pickering Emulsion in Pyrethroid Pesticide Water Emulsion

作　　者：宫楼楼 王晨昱 林伟强 孙萍 鲍淑榕 谢丹华 GONG Lou-lou;WANG Chen-yu;LIN Wei-qiang;SUN Ping;BAO Shu-rong;XIE Dan-hua(College of Chemistry and Materials, Ningde Nomal University, Fujian Ningde 352100, China)

机构地区：[1]宁德师范学院化学与材料学院

出　　处：《广州化工》2019年第13期80-82,共3页GuangZhou Chemical Industry

基　　金：大学生创新创业训练计划项目(201810398011);福建省教育厅中青年教师教育科研项目(JA15552)

摘　　要：通过十六烷基三甲基溴化铵(CTAB)对纳米二氧化硅(SiO2)进行原位疏水化,将其作为乳化剂,以正庚烷作为油相,成功制备了氯菊酯农药水乳液。通过表观照片、分水率、显微镜、流变仪等表征手段测试了Pickering乳液的稳定性和流动性。对制备过程中乳化剂用量、油水比等进行优化,确定了油水比(体积比)为7:3、CTAB浓度为0.1mM、SiO2浓度为0.7%为乳液最佳制备工艺。所制备的农药水乳液具有良好的应用性能。The permethrin pesticide aqueous emulsion was successfully prepared, in which cetyltrimethylammonium bromide (CTAB ) and nano-silica (SiO 2 ) were used as emulsifiers due to the in-situ hydrophobization, and n-heptane was used as the oil phase. The stability and fluidity of the Pickering emulsions were tested by means of apparent photos, water separation ratio, microscope, rheology and other characterization methods. For the optimization of emulsifier content and oil-water ratio, the optimum preparation process of emulsion was determined by oil-water ratio of 7 : 3, CTAB concentration of 0.1 mM and SiO 2 concentration of 0.7%. The aqueous emulsions prepared show implied application.

关 键 词：Pickering乳液 农药水乳液 菊酯 

分 类 号：O636.9[理学—高分子化学]