A kind of dinotefuran oil-based seed coating agent and preparation method thereof
A dinotefuran and oil-based technology, which is applied to the field of dinotefuran oil-based seed coating and its preparation, can solve the problems of low efficacy, large particle size of dinotefuran particles, introduction of mechanical impurities and the like, and achieves high efficacy , the diffusion speed is fast, and the effect of reducing environmental pollution
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[0017] A kind of preparation method of dinotefuran oil-based seed coating agent of the present invention comprises:
[0018] a) under heating conditions, dinotefuran, the first emulsifier, dispersant and water are mixed and dissolved to obtain dinotefuran aqueous solution;
[0019] b) mixing the second emulsifier, thickener, film-forming agent, colorant and oil base to obtain a mixed oil;
[0020] c) Under high-speed stirring, add the dinotefuran water solution in step a) to the mixed oil in step b), stir at high speed, and emulsify to obtain a W / O emulsion.
[0021] In the above technical solution, the solubility of dinotefuran in water at 25°C is only 40g / L, and when the water temperature is greater than 60°C, the solubility is greater than 2000g / L. In the embodiments of the present invention, the solubility of dinotefuran in hot water is sharply increased With great characteristics, water is used as a solvent to dissolve dinotefuran, which is green and environmentally frie...
Embodiment 1
[0067] The present embodiment provides a kind of dinotefuran oil-based seed coating, its formula is as follows table 1:
[0068] Table 1
[0069] components content Remark dinotefuran 5％ first active ingredient Deionized water 5％ solvent Fatty alcohol polyoxyethylene ether 8％ first emulsifier Alkylbenzenesulfonate 3％ Second emulsifier lignosulfonate 2％ Dispersant polyethylene glycol 4％ Film former Alkaline rose essence 2％ Colorant Organic bentonite 1％ thickener Silica 2％ thickener methyl oleate Top up 100% oil base
[0070] Its preparation includes the following steps:
[0071] S11. Mix dinotefuran and deionized water, heat to 56° C. under stirring at 1000 rpm, so that dinotefuran is completely dissolved in deionized water; add the first emulsifier and dispersant and continue stirring to obtain dinotefuran aqueous solution;
[0072] S12. Mix the second emulsifier, film forming ag...
Embodiment 2
[0075] This embodiment provides a kind of dinotefuran oil-based seed coating agent, its formula is as follows table 2:
[0076] Table 2
[0077] components content Remark dinotefuran 5％ first active ingredient Emamectin Benzoate 1％ second active ingredient Deionized water 5％ solvent Fatty alcohol polyoxyethylene ether 8％ first emulsifier Alkylbenzenesulfonate 3％ Second emulsifier lignosulfonate 2％ Dispersant polyethylene glycol 3％ Film former Alkaline rose essence 2％ Colorant Organic bentonite 1％ thickener Silica 2％ thickener BHT 1％ stabilizer sec-butyl acetate 5％ oil base methyl oleate Top up 100% oil base
[0078] Its preparation includes the following steps:
[0079] S21. Mix dinotefuran and deionized water, heat to 56° C. under stirring at 500 rpm, so that dinotefuran is completely dissolved in deionized water; add the first emulsifier and dispersant an...
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