植物生长调节剂25%调环酸钙油悬浮剂的研制

Preparation of Oil Flowable Concentrate of Plant Growth Regulator 25% Prohexadione Calcium

[目的]对25%调环酸钙油悬浮剂配方中的助剂进行筛选,优化配方。[方法]以调环酸钙为原药,按照油悬浮剂生产工艺流程,对配方中的润湿分散剂、增稠剂、防冻剂进行筛选,并且测定各项质量技术指标。[结果]优化配方为:调环酸钙原药25%,助剂EL-105.0%,NP-7 10.0%,尿素4.0%,有机膨润土1.2%,用油酸甲酯补至100%。[结论]该配方制剂外观无明显分层,水中分散性良好,颗粒细度达到要求。各项指标均符合油悬浮剂的相关标准。

[ Objective ] The research aimed to determine the optimum formula of flowable concentrate of 25% prohexadione calcium through the screening test of the main adjuvants. [ Method] According to the production process, the oil suspension agent, the wetting dispersing agent, the thickening agent and the anti freezing agent were selected, and the quality and the technical indexes were determined. [ Result ] The optimized formula was as follows： prohexadione calcium 25%, EL-10 5.0%, NP-7 10.0%, urea 4.0%, and organobentouite 1.2%, and methyl oleate made up to 100%. [ Conclusion] Physical and chemical properties of the preparation has no obvious stratification, good dispersion property in water, and all indexes of the preparation conform with the related standard of suspending agent.