Lufenuron-containing aqueous emulsion and preparation method thereof
A technology of emulsion in water and lufenuron, applied in the field of emulsion in water containing lufenuron and its preparation
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[0044] The present invention also provides a preparation method of an emulsion in water containing lufenuron, comprising the following steps:
[0045] (1) Active ingredient A and active ingredient B are dissolved in a solvent, with or without an emulsifier with an HLB value of 5-7, and uniformly mixed to obtain an oil phase;
[0046] Mix an emulsifier with an HLB value > 10 with water, with or without adding antifreeze, defoamer, thickener, and antifungal agent, and mix evenly to obtain a water phase;
[0047] (2) Under high shear, the oil phase is added to the water phase or the water phase is added to the oil phase to obtain a water emulsion.
[0048] If the above-mentioned oil phase is added to the water phase, the high shear speed is 5000-10000 rpm, if the water phase is added to the oil phase, the high shear speed is 4000-10000 rpm, and the particle size can be obtained at 0.2 ~10 micron products.
[0049] The above-mentioned emulsifiers with an HLB value of 5-7, such a...
Embodiment 1
[0052] Table 1.20% Lufenuron·Imidacloprid Emulsion Formula (100g)
[0053]
[0054]
[0055] The oil phase was added to the water phase under high shear (5000-10000 rpm) to obtain sample 1a; conversely, the water phase was added to the oil phase under high shear (4000-10000 rpm) to obtain sample 1b.
Embodiment 2
[0057] Table 2.40% Lufenuron·Imidacloprid Emulsion Formula (100g)
[0058]
[0059] The oil phase was added to the water phase under high shear (5000-10000 rpm) to obtain sample 2a; conversely, the water phase was added to the oil phase under high shear (4000-10000 rpm) to obtain sample 2b.
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