Method for preparing microemulsion, aqueous emulsion and suspending agent contg. Dola-mycetin and Sala-mycetin
A technology of selamectin and doramectin, which is applied in the field of new pesticide formulations to achieve the effect of improving drug efficacy, good drug effect and reducing harm to human body
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[0042] Example 1 1.8% doramectin or selamectin microemulsion:
[0043] Take 3.6g of doramectin or seramectin (active ingredients of doramectin or seramectin ≥50%), dissolve it with 6g dimethylformamide and 7g acetone, and then add styrylphenol polyoxyethylene Ether and alkyl polyoxyethylene ether formaldehyde condensate mixed emulsifier 12g, azone 1g, ethylene glycol 1g, urea 1g, heated to 40-50℃ and stirred to dissolve, add the measured water into it, stir vigorously, Maintain for 15-20 minutes, and then return to room temperature to obtain a 1.8% doramectin or seramycin microemulsion.
Example Embodiment
[0044] Example 2 2.0% doramectin or selamectin water emulsion:
[0045] Formula: 4g doramectin or seramectin (average 50% of the active ingredients of doramectin or seramectin), 5g dimethylformamide, 6g acetone, vinylphenol polyoxyethylene ether and alkyl Polyoxyethylene ether formaldehyde condensate mixed emulsifier 6g, polyvinyl alcohol 1g, ethylene glycol 1g, silicone defoamer 0.5g, and the balance water.
[0046] Preparation steps
[0047]1. Put 5g of dimethylformamide and 6g of acetone into the reactor and mix well, add 4g of doramectin or selamectin, and keep stirring until the doramectin or selamectin is completely dissolved in it to make The oil is reserved.
[0048] 2. Put a good amount of water into the reactor, and then add 6g of mixed emulsifier of styrene-based phenol polyoxyethylene ether and alkyl polyoxyethylene ether formaldehyde condensate, 1g polyvinyl alcohol, 1g ethylene glycol, and defoaming 0.5g of organosilicone, keep stirring until all the substances are c...
Example Embodiment
[0050] Example 3 4.8% doramectin or serramectin suspension:
[0051] Grind 48g of doramectin or seramectin (50% of the active ingredients of doramectin or seramectin) to below 300 microns, add 10g of sodium dodecylbenzene sulfonate and 10g of Tween-80 , Arylphenol polyoxyethylene ether 10g, bentonite 10g, sodium carboxymethyl cellulose 15g, sodium lignosulfonate 15g, xanthan gum 15g, ethylene glycol 75g, sodium benzoate 0.5g, defoamer 0.5g, add water Stir to 500ml, superfinely pulverize by sand mill, and grind for 60 minutes to obtain suspension.
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