CN102177889A - Difenoconazole water emulsion and preparation method thereof - Google Patents
Difenoconazole water emulsion and preparation method thereof Download PDFInfo
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- CN102177889A CN102177889A CN2011100617690A CN201110061769A CN102177889A CN 102177889 A CN102177889 A CN 102177889A CN 2011100617690 A CN2011100617690 A CN 2011100617690A CN 201110061769 A CN201110061769 A CN 201110061769A CN 102177889 A CN102177889 A CN 102177889A
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- difenoconazole
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Abstract
The invention discloses a difenoconazole water emulsion and a preparation method thereof. The difenoconazole water emulsion comprises the following components in percentage by weight: 1 to 25 percent of difenoconazole, 1 to 20 percent of a solvent and a cosolvent, 1 to 15 percent of emulsifying agent, 0.5 to 2 percent of dispersant, 1 to 5 percent of stabilizer, 1 to 5 percent of antifreeze and the balance of deionized water. The preparation method comprises: dissolving the difenoconazole in the solvent and cosolvent, and adding the emulsifying agent, the stabilizing agent and the water dispersant to prepare an oil phase; and mixing the antifreeze and deionized water to obtain a water phase, and slowing adding the oil phase into the water phase or the water phase into the oil phase under a high-shearing condition to prepare the difenoconazole water emulsion. The difenoconazole water emulsion is efficient, low in toxicity, environment-friendly and safe for human beings and livestock.
Description
Technical field
The present invention relates to a kind of pesticidal preparations and preparation method thereof, a kind of specifically Difenoconazole aqueous emulsion and preparation method thereof.
Background technology
Difenoconazole belongs to azoles fungicide; has interior absorption; it is sterol demethylation inhibitor; fungicidal spectrum is wide, to Ascomycetes, Basidiomycetes and comprise that Alternaria, Ascochyta, the mould genus of tail spore, Colletotrichum, ball seat Pseudomonas, Phoma, Ramularia, septoria musiva are looked steadily, the imperfect fungus of Venturia, Erysiphaceae, Uredinales and some plant and pass pathogen lasting protection and therapeutic activity are arranged.
Difenoconazole is mainly based on missible oil at present, and the modern formulations of pesticide are towards water baseization, ultramicronising, no efflorescence and the development of sustained release aspect, promptly be the formulations of pesticide of matrix with water, wherein aqueous emulsion be a kind of organic solvent can be less with in addition the novel pesticide formulation of no, good drug efficacy, environmentally-friendly water-basedization, also be a kind of good liquid dosage form that replaces emulsifiable concentrates for agricultural chemicals.
Summary of the invention
The objective of the invention is to overcome the environmental pollution that exists in the prior art, harm is healthy and defective such as manufacturing cost height and a kind of efficient, the low toxicity developed, environmentally friendly, person poultry safety and easily produce and the Difenoconazole aqueous emulsion that uses and the method for producing aqueous emulsion of Difenoconazole.
Technical scheme of the present invention: for achieving the above object, the invention provides a kind of Difenoconazole aqueous emulsion, each component is as follows by weight percentage: Difenoconazole 1-25%; Solvent and cosolvent 1-20%; Emulsifier 1-15%; Dispersant 0.5-2%; Stabilizing agent 1-5%; Antifreezing agent 1-5%; Surplus is a deionized water.
Wherein: solvent and cosolvent are one or more the mixing among dimethylbenzene, methyl alcohol, ethanol, n-butanol, ethyl acetate, N-octylpyrrolidone, repefral, diethyl phthalate, dibutyl phthalate, aromatic hydrocarbon solvent Solvesso100, aromatic hydrocarbon solvent Solvesso150, the aromatic hydrocarbon solvent Solvesso200.
Emulsifier is an alkylphenol polyoxyethylene, the styryl phenol polyethenoxy ether, alkylaryl polyoxyethylene polyoxypropylene ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, polyoxyethylene sorbitan fatty acid ketone, sorbitan ester, fatty alcohol-polyoxyethylene ether, maleic acid di-sec-octyl sodium sulfonate, polyol fatty acid ester and ethylene oxide adduct thereof, castor oil, the mixing of one or more in the lauryl sodium sulfate.
Dispersant is an alkyl phenol formaldehyde resin polyoxyethylene ether sulphate.
Stabilizing agent is one or more the mixing in peanut oil, antioxidant 264, epoxidized soybean oil, epoxy linseed oil, epoxy fat, pentaerythrite, xylitol, the pyrogallic acid.
Antifreezing agent is one or more the mixing in ethylene glycol, propane diols, glycerine, the diethylene glycol.
A kind of Difenoconazole method for producing aqueous emulsion: Difenoconazole is dissolved in solvent and the cosolvent, adds emulsifier, stabilizing agent and dispersant again, make oil phase; Antifreezing agent mixed obtaining water with deionized water, under shear conditions, oil phase slowly joined aqueous phase or water is slowly joined in the oil phase, make the Difenoconazole aqueous emulsion.
Difenoconazole aqueous emulsion provided by the invention has following advantage.
1, compared with prior art, Difenoconazole aqueous emulsion provided by the invention is as a kind of water base chemical preparation, has efficient, low toxicity, environmentally friendly, person poultry safety, and characteristics such as be difficult for developing immunity to drugs.Adopt the solvent and the emulsifier of low toxicity, stable performance, easily degraded, active high to corps diseases, environmental pollution is very little.The technological process of production is simple, and the investment of production equipment expense is low, is easy to processing.
2, Difenoconazole aqueous emulsion provided by the invention substitutes most organic solvent with deionized water; reduce environmental pollution; help ecological environmental protection; also can reduce production costs greatly, save a large amount of petrochemical industry resources, and adopt the solvent of low toxicity; significantly reduce organic solvent to the pollution of human body and environment and residual; produce pollution, explosive and poisoning problem in avoiding producing, make pesticide processing produce low poisoning, ensure people and animals' safety and health.
3, Difenoconazole aqueous emulsion provided by the invention not only has crop and well adheres to and permeability, and properties of product are stable, and is higher to the disease activity, improved drug effect, reduces the dosage of medicament simultaneously.
4, Difenoconazole aqueous emulsion provided by the invention can be used as the desirable public nuisance-free agricultural chemicals bactericide of integrated pest control in agriculture fully.
Description of drawings
Fig. 1 is preparation method's of the present invention process chart.
Embodiment
The present invention describes by following specific embodiment, but the invention is not restricted to following specific embodiment.In these embodiments, unless otherwise indicated, all percentages all are weight percentage.
Embodiment 1: Difenoconazole 10%, methyl alcohol 5%, dimethylbenzene 10%, the three mixes, fully dissolving adds castor oil polyoxyethylene ether 3%, fatty alcohol-polyoxyethylene ether 2%, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1%, pyrogallic acid 2%, peanut oil 2% again and obtains oil phase; Ethylene glycol 4% is thrown in the surplus deionized water, makes water after fully stirring in the preparation still, stirs the back oil phase is slowly joined aqueous phase, shears 30 minutes, and makes 10% Difenoconazole aqueous emulsion for 6000 rev/mins.
Embodiment 2: Difenoconazole 15%, and ethyl acetate 3%, aromatic hydrocarbon solvent Solvesso200 15%(aromatic hydrocarbon solvent Solvesso200 is an Exxon Mobil company product), the three mixes, fully dissolving; Add alkylphenol polyoxyethylene 2%, polyol fatty acid ester and ethylene oxide adduct 1.5% thereof, maleic acid di-sec-octyl sodium sulfonate 2%, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1%, antioxidant 264 2%, peanut oil 3% again, obtain oil phase; Glycerine 4% is thrown in the surplus deionized water, makes water after fully stirring in the preparation still, opens the stirring back oil phase is slowly joined aqueous phase, shears 15 minutes, and makes 15% Difenoconazole aqueous emulsion for 6000 rev/mins.
Embodiment 3: Difenoconazole 25%, ethanol 3%, aromatic hydrocarbon solvent Solvesso150 17%(aromatic hydrocarbon solvent Solvesso150 is an Exxon Mobil company product), the three mixes, add again castor oil polyoxyethylene ether 4%, polyoxyethylene sorbitan fatty acid ketone 2%, fatty alcohol-polyoxyethylene ether 1%, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1%, epoxidized soybean oil 5% fully dissolving obtain oil phase; Glycerine 4% is thrown in the surplus deionized water, makes water after fully stirring in the preparation still, opens the stirring back oil phase is slowly joined aqueous phase, shears 20 minutes, and makes 25% Difenoconazole aqueous emulsion for 6000 rev/mins.
Embodiment 4: Difenoconazole 1%, ethanol 3%, dibutyl phthalate 15%, the three mixes, add again castor oil polyoxyethylene ether 3%, polyoxyethylene sorbitan fatty acid ketone 2%, fatty alcohol-polyoxyethylene ether 1%, alkyl phenol formaldehyde resin polyoxyethylene ether sulphate 1%, epoxidized soybean oil 4% fully dissolving obtain oil phase; Glycerine 3% is thrown in the surplus deionized water, makes water after fully stirring in the preparation still, opens the stirring back oil phase is slowly joined aqueous phase, shears 20 minutes, and makes 1% Difenoconazole aqueous emulsion for 6000 rev/mins.
Claims (7)
1. Difenoconazole aqueous emulsion, it effectively becomes Difenoconazole, it is characterized in that, and each component is as follows by weight percentage: Difenoconazole 1-25%, solvent and cosolvent 1-20%,
Emulsifier 1-15%, dispersant 0.5-2%, stabilizing agent: 1-5%, antifreezing agent 1-5%, surplus is a deionized water.
2. a kind of Difenoconazole aqueous emulsion according to claim 1 is characterized in that: described solvent and cosolvent are one or more the mixing among dimethylbenzene, methyl alcohol, ethanol, n-butanol, ethyl acetate, N-octylpyrrolidone, repefral, diethyl phthalate, dibutyl phthalate, aromatic hydrocarbon solvent Solvesso100, aromatic hydrocarbon solvent Solvesso150, the aromatic hydrocarbon solvent Solvesso200.
3. a kind of Difenoconazole aqueous emulsion according to claim 1, it is characterized in that: described emulsifier is an alkylphenol polyoxyethylene, the styryl phenol polyethenoxy ether, alkylaryl polyoxyethylene polyoxypropylene ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, polyoxyethylene sorbitan fatty acid ketone, sorbitan ester, fatty alcohol-polyoxyethylene ether, maleic acid di-sec-octyl sodium sulfonate, polyol fatty acid ester and ethylene oxide adduct thereof, castor oil, the mixing of one or more in the lauryl sodium sulfate.
4. a kind of Difenoconazole aqueous emulsion according to claim 1 is characterized in that: described dispersant is an alkyl phenol formaldehyde resin polyoxyethylene ether sulphate.
5. a kind of Difenoconazole aqueous emulsion according to claim 1 is characterized in that: described stabilizing agent is one or more the mixing in peanut oil, antioxidant 264, epoxidized soybean oil, epoxy linseed oil, epoxy fat, pentaerythrite, xylitol, the pyrogallic acid.
6. a kind of Difenoconazole aqueous emulsion according to claim 1 is characterized in that: described antifreezing agent is one or more the mixing in ethylene glycol, propane diols, glycerine, the diethylene glycol.
7. a Difenoconazole method for producing aqueous emulsion is characterized in that: Difenoconazole is dissolved in solvent and the cosolvent, adds emulsifier, stabilizing agent and dispersant again, make oil phase; Antifreezing agent mixed obtaining water with deionized water, under shear conditions, oil phase slowly joined aqueous phase or water is slowly joined in the oil phase, make the Difenoconazole aqueous emulsion.
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Cited By (6)
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CN102674953A (en) * | 2012-04-23 | 2012-09-19 | 赵国彬 | Bactericide for controlling plant gray mold and leaf mold |
CN102763645A (en) * | 2012-06-30 | 2012-11-07 | 广东中迅农科股份有限公司 | Benthiavalicarb-isopropyl emulsion in water and preparation method thereof |
CN104255726A (en) * | 2014-08-29 | 2015-01-07 | 广东省农业科学院植物保护研究所 | Emulsion in water containing methoprene and preparation method thereof |
CN105638660A (en) * | 2015-12-20 | 2016-06-08 | 广东中迅农科股份有限公司 | Pesticide emulsion in water and preparation process thereof |
CN115104619A (en) * | 2022-07-26 | 2022-09-27 | 安徽富田农化有限公司 | Pesticide emulsion in water for preventing and treating corn borers and rust diseases and preparation method thereof |
CN115251070A (en) * | 2022-08-05 | 2022-11-01 | 南京工业大学 | Difenoconazole synergistic aqueous emulsion as well as preparation method and application thereof |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102674953A (en) * | 2012-04-23 | 2012-09-19 | 赵国彬 | Bactericide for controlling plant gray mold and leaf mold |
CN102763645A (en) * | 2012-06-30 | 2012-11-07 | 广东中迅农科股份有限公司 | Benthiavalicarb-isopropyl emulsion in water and preparation method thereof |
CN102763645B (en) * | 2012-06-30 | 2015-09-16 | 广东中迅农科股份有限公司 | Aqueous emulsion of a kind of benzene metsulfovax and preparation method thereof |
CN104255726A (en) * | 2014-08-29 | 2015-01-07 | 广东省农业科学院植物保护研究所 | Emulsion in water containing methoprene and preparation method thereof |
CN105638660A (en) * | 2015-12-20 | 2016-06-08 | 广东中迅农科股份有限公司 | Pesticide emulsion in water and preparation process thereof |
CN115104619A (en) * | 2022-07-26 | 2022-09-27 | 安徽富田农化有限公司 | Pesticide emulsion in water for preventing and treating corn borers and rust diseases and preparation method thereof |
CN115251070A (en) * | 2022-08-05 | 2022-11-01 | 南京工业大学 | Difenoconazole synergistic aqueous emulsion as well as preparation method and application thereof |
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Application publication date: 20110914 |