40%硝磺草酮悬浮剂的研制  

Preparation of Mesotrione 40% Suspension Concentrate

作　　者：任帅臻 李新忠[1] 张振兵[1] 史雅丽[1] 何炼[1] 任天瑞[1] 

机构地区：[1]上海师范大学生命与环境科学学院教育部资源化学重点实验室,上海200234

出　　处：《农药科学与管理》2017年第8期19-24,共6页Pesticide Science and Administration

摘　　要：本文通过对润湿分散剂、增稠剂和pH调节剂等助剂的筛选,最终确定了40%硝磺草酮悬浮剂的最佳配方:硝磺草酮原药40.0%、SD-813为2.0%、SD-208为3.0%、乙二醇4.0%、硅酸镁铝1.0%、黄原胶5.0%、柠檬酸2.0%、AFE-3168 0.2%、去离子水补足。实验结果表明:该配方制备的悬浮剂平均粒径<4μ,悬浮率95%以上,其它各项指标均达到悬浮剂的要求。In this paper, mesotrione 40% suspension concentrate was prepared by optimizing the major formulants such as wetting and dispersing agents, thickening agents as well as pH controlling agents. The optimum formula was determined as follows： mesotrione 40. 0%, SD -813 2. 0%, SD- 208 3.0%, ethylene glycol 4. 0%, magnesium aluminum silicate 1.0%, xanthan gum 5.0%, citric acid 2. 0%, AFE -3168 0. 2% and water added to 100%. The resuhs showed that the average particle size of SC product with the optimum formula was less than 4 μm and the suspen- sion rate was over 95%. All the other parameters complied with the requirements for suspension concentrate formulation.

关 键 词：硝磺草酮 悬浮剂 配方 

分 类 号：TQ457[化学工程—农药化工]