CN102177888A - Micellar emulsion of dimethomorph and method for preparing same - Google Patents
Micellar emulsion of dimethomorph and method for preparing same Download PDFInfo
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- CN102177888A CN102177888A CN2011100616861A CN201110061686A CN102177888A CN 102177888 A CN102177888 A CN 102177888A CN 2011100616861 A CN2011100616861 A CN 2011100616861A CN 201110061686 A CN201110061686 A CN 201110061686A CN 102177888 A CN102177888 A CN 102177888A
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Abstract
The invention discloses a micellar emulsion of dimethomorph and a method for preparing the same. The micellar emulsion of dimethomorph comprises the following components in percentage by weight: 1 to 20 percent of dimethomorph, 1 to 45 percent of solvent and cosolvent, 1 to 25 percent of emulsifier, 0.5 to 8 percent of anti-freezing agent, 0.5 to 8 percent of stabilizer, 0.5 to 5 percent of defoaming agent, and the balance of deionized water. The preparation method comprises the following steps of: completely dissolving raw materials of dimethomorph into solvents and cosolvents, adding the mixed solution into a mixing kettle, adding the emulsifier, the anti-freezing agent and the stabilizer in a certain ratio, and fully mixing and uniformly stirring the mixed solution to obtain the micellar emulsion of dimethomorph. The preparation method has the advantages of high efficiency, low toxicity, environmentally friendliness, safety for people and animals and convenient for production and use.
Description
Technical field
The present invention relates to a kind of disinfectant use in agriculture and preparation method thereof, a kind of specifically dimethomorph microemulsion and preparation method thereof.
Background technology
Dimethomorph is a kind of bactericide of preventing and treating the Oomycete fungi, its effect characteristics are to destroy the formation of cell envelope, all there is effect in each stage to oomycetes history of life, and particularly responsive in the formation stage of sporangiophore and egg spore, (＜0.25 μ g/ml) promptly is suppressed under extremely low concentration.There is not cross resistance with the phenylamide medicament.Be widely used in control vegetables downy mildew, eqpidemic disease, seedling stage damping off, black shank etc. by the fungus-caused disease of Mastigomycotina Oomycete, have systemic activity.
The formulations of pesticide such as missible oil, pulvis have been brought into play important function in China's pesticide industry development course, in Pesticidal products, also occupy very big ratio, then, these fall behind formulation and have fatal defectives such as environmental pollution is big, manufacturing cost height, can not satisfy the demand of agricultural sustainable development.
The modern formulations of pesticide promptly are the formulations of pesticide of matrix with water to water baseization, ultramicronising, no efflorescence and the development of sustained release aspect, replace backward formulations such as missible oil as water baseization pesticidal preparations such as suspending agent, microemulsion, aqueous emulsions.Wherein microemulsion 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 the good liquid dosage form that a kind of alternative missible oil etc. falls behind formulation.Public nuisance-free agricultural chemicals formulation for the Development and Production green agricultural product helps the sustainable development of environmental protection and agricultural production, and the inventor develops the water base chemical preparation of dimethomorph, and then has finished the present invention.
Summary of the invention
The present invention is directed to the environmental pollution that exists in the prior art, harm is healthy and shortcomings such as manufacturing cost height, a kind of efficient, low toxicity, environmentally friendly, person poultry safety be provided and easily produce and the dimethomorph microemulsion that uses and preparation method thereof.
Technical scheme: for achieving the above object, the invention provides a kind of dimethomorph microemulsion, each component is as follows by weight percentage: dimethomorph 1-20%; Solvent and cosolvent 1-45%; Emulsifier 1-25%; Antifreezing agent 0.5-8%; Stabilizing agent 0.5-8%; Defoamer 0.5%-5%; Surplus is a deionized water.
Wherein: solvent and cosolvent are one or more the mixing in dimethylbenzene, cyclohexanone, ethyl acetate, dimethyl formamide, N-Methyl pyrrolidone, acetic acid, dichloroethane, dimethyl sulfoxide (DMSO), diethyl phthalate, the dibutyl phthalate.
Emulsifier is one or more the mixing in alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, maleic acid di-sec-octyl sodium sulfonate, polyol fatty acid ester and ethylene oxide adduct thereof, castor oil, the lauryl sodium sulfate.
Antifreezing agent is a higher alcohols, mineral salt, the mixing of one or more in the urea.
Stabilizing agent is one or more the mixing in antioxidant 264, epoxidized soybean oil, epoxy linseed oil, epoxy fat, pentaerythrite, xylitol, the pyrogallic acid.
Defoamer is one or more the mixing in organic silicone oil, the epoxidized soybean oil.
Dimethomorph microemulsion preparation method is: after with solvent and cosolvent the former medicine of dimethomorph all being dissolved, be added in the compounding kettle, add certain proportion emulsifier, antifreezing agent, stabilizing agent, defoamer and deionized water again and fully mix, obtain the dimethomorph microemulsion after stirring.
Dimethomorph microemulsion provided by the invention has the following advantages.
1, efficient, the low toxicity of dimethomorph microemulsion provided by the invention, environmentally friendly, person poultry safety, the dimethomorph microemulsion formulation that is 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, dimethomorph microemulsion 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, dimethomorph microemulsion provided by the invention not only has crop and well adheres to and permeability, and properties of product are stable, and bactericidal activity is higher, has improved drug effect, reduces the dosage of medicament simultaneously.
4, dimethomorph microemulsion provided by the invention can be used as the desirable public nuisance-free agricultural chemicals bactericide of integrated pest control fully.
Description of drawings
Fig. 1 is a 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: dimethomorph 1%, dichloroethane 2%, acetic acid 1.5%, enter compounding kettle behind the abundant mixed dissolution of three, add alkaryl phenol polyethenoxy ether phosphate 5%, polyol fatty acid ester and ethylene oxide adduct 4% thereof, glycerine 4% to compounding kettle again, pyrogallic acid 1%, organic silicone oil 1%, fully after the stirring and dissolving, deionized water complements to 100%, continue to be stirred to transparent, make 1% dimethomorph microemulsion.
Embodiment 2: dimethomorph 5%, dimethyl sulfoxide (DMSO) 15%, diethyl phthalate 10%, enter compounding kettle behind the abundant mixed dissolution of three, add maleic acid di-sec-octyl sodium sulfonate 2%, polyol fatty acid ester and ethylene oxide adduct 10% thereof, urea 2% to compounding kettle again, antioxidant 264 2%, organic silicone oil 2%, fully after the stirring and dissolving, deionized water complements to 100%, continue to be stirred to transparent, obtain 5% dimethomorph microemulsion.
Embodiment 3: dimethomorph 10%, dichloroethane 20%, acetic acid 15%, enter compounding kettle behind the abundant mixed dissolution of three, add castor oil polyoxyethylene ether 10%, polyol fatty acid ester and ethylene oxide adduct 4% thereof, glycerine 4% to compounding kettle again, pyrogallic acid 2%, epoxidized soybean oil 2%, fully after the stirring and dissolving, deionized water complements to 100%, continue to be stirred to transparent, obtain 10% dimethomorph microemulsion.
Embodiment 4: dimethomorph 20%, diethyl phthalate 35% fully enters compounding kettle behind the mixed dissolution, adds alkylphenol polyoxyethylene 12% to compounding kettle again, castor oil polyoxyethylene ether 10%, urea 2%, epoxidized soybean oil 6%, organic silicone oil 1.5%, fully after the stirring and dissolving, deionized water complements to 100%, continues to be stirred to transparent, obtains 20% dimethomorph microemulsion.
Claims (7)
1. dimethomorph microemulsion, its active ingredient is dimethomorph, it is characterized in that: each component is as follows by weight percentage: dimethomorph 1-20%, solvent and cosolvent 1-45%, emulsifier 1-25%, antifreezing agent 0.5-8%, stabilizing agent 0.5-8%, defoamer 0.5%-5%, surplus is a deionized water.
2. a kind of dimethomorph microemulsion according to claim 1 is characterized in that: described solvent and cosolvent are one or more the mixing in dimethylbenzene, cyclohexanone, ethyl acetate, dimethyl formamide, N-Methyl pyrrolidone, acetic acid, dichloroethane, dimethyl sulfoxide (DMSO), diethyl phthalate, the dibutyl phthalate.
3. a kind of dimethomorph microemulsion according to claim 1 is characterized in that: described emulsifier is one or more the mixing in alkylphenol polyoxyethylene, styryl phenol polyethenoxy ether, alkaryl phenol polyethenoxy ether phosphate, castor oil polyoxyethylene ether, alkylbenzenesulfonate, alkylphenol-polyethenoxy phosphate, maleic acid di-sec-octyl sodium sulfonate, polyol fatty acid ester and ethylene oxide adduct thereof, castor oil, the lauryl sodium sulfate.
4. a kind of dimethomorph microemulsion according to claim 1, it is characterized in that: described antifreezing agent is a higher alcohols, mineral salt, the mixing of one or more in the urea.
5. a kind of dimethomorph microemulsion according to claim 1 is characterized in that: described stabilizing agent is one or more the mixing in antioxidant 264, epoxidized soybean oil, epoxy linseed oil, epoxy fat, pentaerythrite, xylitol, the pyrogallic acid.
6. a kind of dimethomorph microemulsion according to claim 1 is characterized in that: described defoamer is one or more the mixing in organic silicone oil, the epoxidized soybean oil.
7. dimethomorph microemulsion preparation method, it is characterized in that: after with solvent and cosolvent the former medicine of dimethomorph all being dissolved, be added in the compounding kettle, add certain proportion emulsifier, antifreezing agent, stabilizing agent, defoamer and deionized water again and fully mix, obtain the dimethomorph microemulsion after stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100616861A CN102177888A (en) | 2011-03-15 | 2011-03-15 | Micellar emulsion of dimethomorph and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100616861A CN102177888A (en) | 2011-03-15 | 2011-03-15 | Micellar emulsion of dimethomorph and method for preparing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102177888A true CN102177888A (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100616861A Pending CN102177888A (en) | 2011-03-15 | 2011-03-15 | Micellar emulsion of dimethomorph and method for preparing same |
Country Status (1)
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|---|---|
| CN (1) | CN102177888A (en) |
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2011
- 2011-03-15 CN CN2011100616861A patent/CN102177888A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20110914 |