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Emulsion in water containing methoprene and preparation method thereof
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A technology of methoprene and emulsion in water, which is applied in the field of emulsion in water containing methoprene and its preparation, can solve the problems of consumption of large petrochemical resources, environmental pollution, and high cost of granule processing, and achieve saving of petrochemical resources and resistance to rain erosion , Low storage and transportation costs
Active Publication Date: 2015-01-07
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI +2
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Abstract
Description
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Problems solved by technology
Since the emulsifiable concentrate preparation is mainly prepared with aromatic organic solvents, a large amount of aromatic organic solvents such as toluene, xylene, mixed toluene, etc. not only pollute the environment to a certain extent, but also consume a large amount of petrochemical resources; the processing cost of granules is relatively high
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Embodiment 1
[0037] In this embodiment, a water emulsion containing methoprene is composed of the following raw materials in mass percentage:
[0038]
[0039] The preparation method of the above-mentioned aqueous emulsion containing methoprene, comprises the steps:
[0040] Dissolve methoprene in the solvent, then add emulsifier, wetting agent, stabilizer and dispersant, and mix well to obtain the oil phase;
[0041] Dissolve the antifreeze in deionized water to obtain the water phase;
[0042] Under high shear conditions (6000 rpm for 30 minutes), the oil phase is slowly added to the water phase to obtain a milky white water emulsion containing methoprene.
Embodiment 2
[0044] In this embodiment, a water emulsion containing methoprene is composed of the following raw materials in mass percentage:
[0045]
[0046] The preparation method of the above-mentioned aqueous emulsion containing methoprene, comprises the steps:
[0047] Dissolve methoprene in the solvent, then add emulsifier, wetting agent, stabilizer and dispersant, and mix well to obtain the oil phase;
[0048] Dissolve the antifreeze in deionized water to obtain the water phase;
[0049] Under high-shear conditions (5000 rpm for 15 minutes), the oil phase is slowly added to the water phase to obtain a milky white water emulsion containing methoprene.
Embodiment 3
[0051] In this embodiment, a water emulsion containing methoprene is composed of the following raw materials in mass percentage:
[0052]
[0053]
[0054] The preparation method of the above-mentioned aqueous emulsion containing methoprene, comprises the steps:
[0055] Dissolve methoprene in the solvent, then add emulsifier, wetting agent, stabilizer and dispersant, and mix well to obtain the oil phase;
[0056] Dissolve the antifreeze in deionized water to obtain the water phase;
[0057] Under high-shear conditions (6000 rpm for 20 minutes), the oil phase is slowly added to the water phase to obtain a milky white water emulsion containing methoprene.
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Abstract
The invention discloses an emulsion in water containing methoprene and a preparation method thereof. The emulsion in water comprises the following raw materials in percentage by mass: 0.1-20% of methoprene, 0.1-10% of a solvent, 0.1-10% of an emulsifying agent, 1-5% of a wetting agent, 1-5% of a stabilizing agent, 0.5-2% of a dispersant, 1-5% of an anti-freezing agent and the balance of de-ionized water, wherein the stabilizing agent is selected from one or more out of peanut oil, epoxysoybean oil, epoxylinseed oil and soybean oil. By adopting plant oil as the stabilizing agent, the methoprene in the emulsion in water, disclosed by the invention, is more stable, and efficacy release of the methoprene is not affected; the emulsion in water, disclosed by the invention, is stable in dosage performance, easy to degrade, simple in production process, and low in investment and equipment cost.
Description
technical field [0001] The invention relates to the technical field of pesticides, in particular to a water emulsion containing methoprene and a preparation method thereof. Background technique [0002] Methoprene is a light yellow liquid with a density of 0.9261g / mL, a boiling point of 100°C, and a melting point of -20°C. The solubility in water is 1.4mg / L, and it can be miscible with organic solvents; the acute oral LD50 of rats is >34600mg / kg, low toxicity; it is a protective agent for tobacco leaves, which interferes with the molting process of insects. It can interfere with the growth and development process of tobacco beetle and tobacco powder borer, and make adults lose their ability to reproduce, thereby effectively controlling the growth of pest populations in stored tobacco leaves; It is effective for a variety of insects of the order Homoptera, and is used to control tobacco storage pests such as mealy borers and beetles. [0003] Currently, pesticide prepar...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/36A01N25/04A01N25/22A01P7/04
Inventor 章玉苹王龙江劳传忠曾伶朱天圣
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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