Bactericide composition and preparation and application thereof
A fungicide composition and preparation technology, applied in the directions of fungicides, applications, biocides, etc., can solve the problems of loss of plants in the postharvest stage, infestation of field crops, etc., and achieves remarkable control effect, good crop safety, and is not easy to produce. resistance effect
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preparation example Construction
[0043] The preparation method of the above-mentioned emulsifiable concentrate preparation may include, for example, mixing and stirring each active component, solvent, co-solvent and emulsifier to form a uniform transparent oil phase to obtain an emulsifiable concentrate preparation.
[0044] Preferably, the aqueous emulsion or microemulsion consists of 1-95% active ingredient, 1-30% emulsifier, 0-30% co-solvent, 1-30% solvent, and 0-10% antifreeze , Thickener 0-10%, water make up to 100%.
[0045] Preferably, the preparation method of the water emulsion may include, for example, mixing the active ingredient, emulsifier, co-solvent and solvent to make it a uniform oil phase; mixing water, thickener, antifreeze, etc. to make it a uniform water phase. Mutually. Under high-speed shear, add the water phase to the oil phase or add the oil phase to the water phase to form a water emulsion with good dispersibility.
[0046] Preferably, the microemulsion is prepared by mixing and st...
preparation example 1
[0086] This preparation example is used to illustrate the preparation of suspending agent
[0087] Weigh 32% Y12196, 2% pyrimethanil, 2% TERSPERSE2500 (purchased from Huntsman, the same below), 3% TERSPERSE4896 (purchased from Huntsman, the same below), 0.2% xanthan gum, 3% White carbon black, 5% ethylene glycol, 0.3% benzoic acid, 0.1% silicone defoamer (trade name: s-29, purchased from Nanjing Sixin Applied Chemicals Company), and deionized water were added to 100%.
[0088] Preparation method: Mix the active ingredients, wetting agent, dispersant, antifreeze, etc. evenly, add to a sand mill and grind to a certain particle size, then filter. Then add the prepared xanthan gum and stir until uniform to obtain 34% Y12196-pyrimethanil suspension concentrate Y1.
preparation example 2
[0090] This preparation example is used to illustrate the preparation of suspending agent
[0091] Weigh 24% Y12196, 3% pyrimethanil, 2% diffusing agent NNO (alkyl naphthalene sulfonate formaldehyde condensate, purchased from Shanghai Tiantan Auxiliary Co., Ltd., the same below), 2% TERSPERSE2500, 0.1% xanthan gum , 3% white carbon black, 5% propylene glycol, 0.5% sodium benzoate, 0.5% silicone defoamer, deionized water added to 100%.
[0092] Preparation method: Mix the active ingredients, wetting agent, dispersant, antifreeze, etc. evenly, add to a sand mill and grind to a certain particle size, then filter. Then add the prepared xanthan gum and stir until uniform to obtain 27% Y12196-pyrimethanil suspension concentrate Y2.
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