Micro-emulsion for killing Monilinia fructicola and preparation method thereof
A technology of peach brown rot fungus and microemulsion, which is applied in the direction of fungicides, botanical equipment and methods, biocides, etc., can solve problems such as agglomeration and affect the use effect, achieve high transfer efficiency, reduce the amount of bacteria, and low price Effect
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Embodiment 1
[0040] Embodiment 1 kills the preparation of the microemulsion of peach brown rot fungus
[0041] 1. Selection of preparation process
[0042] The present invention selects direct emulsification method to prepare O / W type emulsion, and concrete process flow is as follows figure 1 Shown:
[0043] Mix the original drug, co-solvent, emulsifier, etc. into the oil phase; water or part of the emulsifier into the water phase. In the microemulsion preparation apparatus, the water phase is added to the oil phase. Features: From the beginning to the end of the whole process, although the proportion of the two phases changes continuously, the oil phase dominates at the beginning, and the proportion of the two phases is balanced as the amount of the water phase increases to 50%. The main body of Zhongzhan is not the oil phase, but the water phase.
[0044] In the present invention, colorless, odorless, economical and environment-friendly water is selected as the main body, wherein the...
Embodiment 2
[0104] The quality detection of embodiment 2 microemulsions
[0105] Select the following parameters to be prepared into the microemulsion to be tested for the quality inspection experiment test mentioned later:
[0106] Solvent: 95% ethanol, the dosage is 75mL;
[0107] Dissolving heating temperature is 50°C;
[0108] Emulsifier: Tween 80, the dosage is 15mL;
[0109] The heating temperature for emulsification and stirring is 50°C, and the stirring time is 25 minutes;
[0110] Antifreeze: 5% (g / mL) ethylene glycol aqueous solution, dosage 60mL.
[0111] 1. Determination of transparent temperature range
[0112] The detection method is as described above, and the detection result is: the transparent temperature range of the microemulsion to be tested is -7-105°C.
[0113] 2. Emulsion Stability Test
[0114] Refer to the test method for emulsion stability stipulated in the national standard of pesticide emulsifiable concentrate. Prepare the sample according to the microemu...
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