【摘要】 以测量较小流点法为标准,采用优化组合法对适宜加工10亿PIB/mL斜纹夜蛾核型多角体病毒悬浮剂的润湿分散剂、增稠剂、防腐剂、防冻剂等助剂进行筛选,确定其最佳配方组成为:SpltNPV 10亿PIB/mL、农乳500#2.0%、SP-2700 1.5%、白炭黑3%、黄原胶0.1%、硅酸铝镁1.5%、苯甲酸钠0.3%、乙二醇3%、有机硅消泡剂0.2%,余量水。结果表明:采用以上配方经湿法研磨3 h后,产品悬浮率90%以上,冷热贮等各项指标合格,产品质量稳定。更多还原

【Abstract】 Regarding the less flowpoint as standard,wetting and dispersing agents,thickeners,preservatives,antifreeze and other additives were selected by optimization grouping method to prepare 1.0 ×109 PIB/mL SpltNPV suspension concentrate.An optimized formula was achieved as follows: SpltNPV(1.0×109 PIB/mL),agricultural emulsifier 500#(2.0%),SP-2700(1.5%),silica hydrated(3%),xanthan gum(0.1%),magnesium alumino silicate(1.5%),sodium benzoate(0.3%),ethylene glycol(3%),silicone antifoaming agent(0.2%) and water.Experimental results of using the formula above showed that the product suspension rate was over 90%,and all the indexes including a stability were qualified by wet grinding for 3 h.更多还原