Preparation And Properties Of Tebuconazole Water-dispersible Granules And Aqueous Suspensions

Pesticides as the control of agricultural and forestry pests chemical agents,agricultural production is an indispensable part.The pesticide itself can not directly act on the farmland,need to be prepared into a variety of pesticide formulations and then use.Since the 21 st century,people pay more and more attention to environmental problems,so water-based environmentalpesticide formulations become a hot spot for people to develop.(SC)and pesticide water suspension granule(WDG)are favored by more and more people because of their high efficiency,low energy consumption and environmental protection.Pesticides in the course of the use of decomposition forvarious reasons,thereby reducing the utilization of pesticides,increased use of pesticides.How to improve the use of pesticides in the use of the process has become the object of study.In this paper,three kinds of environmental protection dosage forms of tebuconazole were preparedThe experimental content of this subject mainly includes the following three parts:(1)Preparation of 80% tebuconazole WDG.According to the formulation requirements of water suspension granules and the physicochemical properties of tebuconazole,the optimal dosage of 80% tebuconazole WDG was screened through the screening of dispersant,wetting agent,disintegrating agent and carrier,Formulation: 82.5% tebuconazole(Dongbao),2% SD-819(polycarboxylate dispersant),5% SD-661(sulfonate dispersant),2% SR-05 Agent,light calcium make up.80% tebuconazole WDG formula selected,in accordance with the national standard method of determination of water dispersible granules of the performance indicators were measured,are in line with the requirements.80% tebuconazole WDG to solve the problem of low tebuconazole suspension rate,poor disintegration(2)Preparation of 25% tebuconazole sc.The optimal formulation of 25% tebuconazole sc was screened through the screening of dispersant,antifreezing agent,thickener and preservative,and the cost of adjuvant according to the formulation requirements of water suspension agent and the physicochemical properties of tebuconazole alcohol.25.69% of tebuconazole(Shanxi West Walter),2% of SD-816(polycarboxylate dispersant),4% of ethylene glycol,1% of magnesium aluminum silicate,10% of xanthan gum aqueous solution And deionized water.25% tebuconazole sc solution tebuconazole after heat storage grain size becomes larger problem.(3)Development of 40% tebuconazole sc.According to the formulation requirements of water suspending agent and the physicochemical properties of tebuconazole,the optimal dosage of 40% tebuconazole sc was screened through the screening of dispersant,antifreezing agent,thickener and preservative,41.2% of tebuconazole(Shanxi West Walter),4% SD-816(polycarboxylate dispersant),4% ethylene glycol,1% magnesium aluminum silicate,5% xanthan gum glue,Solution and deionized water.40% tebuconazole sc solution tebuconazole after the heat storage of serious problems of decomposition.