CN101530076A - Preparation method of myclobutanil micro-emulsion - Google Patents
Preparation method of myclobutanil micro-emulsion Download PDFInfo
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- CN101530076A CN101530076A CN200810101924A CN200810101924A CN101530076A CN 101530076 A CN101530076 A CN 101530076A CN 200810101924 A CN200810101924 A CN 200810101924A CN 200810101924 A CN200810101924 A CN 200810101924A CN 101530076 A CN101530076 A CN 101530076A
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- myclobutanil
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Abstract
The invention aims at providing a preparation method of a myclobutanil micro-emulsion. By screening and researching a plurality of solvents, emulsifiers and preparation processes and adopting water in place of a plurality of organic solvents, the method decreases the environmental pollution caused by agricultural chemicals; the myclobutanil micro-emulsion prepared by adopting suitable surfactants and additives through ultra-fine refinement process is good in physicochemical stability, strong in emulsion dispersion and is a pollution-free fungicide with high efficiency, broad spectrum and low toxicity. The fungicide is characterized in that the myclobutanil micro-emulsion comprises 1 to 20 percent of myclobutanil, 5 to 30 percent of solvent, 5 to 10 percent of stabilizing agent, 5 to 10 percent of synergistic agent, 5 to 30 percent of emulsifier and 20 to 70 percent of water. The myclobutanil micro-emulsion products are obtained by dissolving the technical product of myclobutanil in the solvents, adding the emulsifiers, then adding the synergistic agent and the stabilizing agent, fully and uniformly stirring the agents, then putting the mixed agents into a viscolizer filled with the dispersed medium water and strongly mixing and homogenizing the mixture.
Description
Technical field
The present invention relates to a kind of agriculture chemicals fungicide, specifically relate to a kind of preparation method of myclobutanil micro-emulsion.This invention is by screening and research to multiple solvent, emulsifier, preparation technology, replaces a large amount of organic solvents with water, has reduced the pollution of agricultural chemicals to environment.
Background technology
Nitrile bacterium azoles; chemical name: 2-(4-chlorphenyl)-2-(1H; 1,2,4-triazole-1-methyl) own nitrile; belong to triazole bactericidal agent; be sterol demethylation inhibitor, have the systemic fungicide of protection and therapeutic action, characteristics such as it has efficiently, wide spectrum, low toxicity; to Ascomycotina, Basidiomycotina, the microbial multiple diseases of Deuteromycotina cause of disease have good preventing and result of treatment.Powdery mildew, rust, the smut that can be widely used in wheat; The scab of pears, apple, powdery mildew, brown spot, graywall; Melon powdery mildew; The leaf spot of banana and peanut; The powdery mildew of grape; The powdery mildew of vegetables and flowers, rust etc.Characteristics such as it is few to have consumption, and the lasting period is long, and is safe in utilization, good market prospects.
Agricultural chemicals is traditional to account for 80% as missible oil, pulvis and wetting powder etc. in China's preparation total amount, along with the development of processing formulation, the shortcoming of conventional dosage forms is apparent more outstanding.Contain organic solvents such as a large amount of dimethylbenzene, toluene in the missible oil, not only environment has been caused than severe contamination, and the petrochemical industry resource has been caused waste.Wetting powder often occurs dust from flying because its granularity is very thin in production and use, not only endanger people's health, also can cause environmental pollution, and low amounts of dust is flown upward and is easy to make crops to produce poisoning.Pulvis subject matter is the dust drift, and volume is big, is difficult for metering, existing arid area and some particular places of only being used for." water base replacement oil base ", greatly develop water base property pesticides new formulation, reduce consumption of organic solvent, walk the road for development of the Environmental compatibility formulations of pesticide, become the trend of world's formulations of pesticide development.Microemulsion be liquid or be dispersed in the aqueous solution that contains the exhibiting high surface activating agent with the former medicine of liquid pesticidal that solvent is mixed with after, formed transparent or translucent solution.Because microemulsion has added the exhibiting high surface activating agent, general field efficacy is higher by 5～10% than missible oil.
At present the main formulation of the myclobutanil fungicide product of using on the agricultural chemicals market has missible oil and wetting powder, and efficient, low toxicity, environment amenable myclobutanil micro-emulsion are effectively used as yet.
Summary of the invention
The preparation method who the objective of the invention is to a kind of myclobutanil micro-emulsion.
Another object of the present invention is to overcome the shortcoming of prior art, provide a kind of with nitrile bacterium azoles be that the preparation of former medicine is efficient, low toxicity, environment amenable nuisanceless micro emulsion bactericide.
Purpose of the present invention is achieved through the following technical solutions:
1, a kind of myclobutanil micro-emulsion, it is characterised in that, by weight percentage, nitrile bacterium azoles 1-20%, solvent 5-30%, stabilizing agent 5-10%, synergist 5-10%, emulsifier 5-30%, water 20-70%.
2, described solvent is selected from N-Methyl pyrrolidone, ethanol, isopropyl alcohol, n-butanol, n-amyl alcohol, acetone, cyclohexanone or has any one or two or more combinations in the material of similar features.
3, described emulsifier is meant 33#, 34#, 500#, 600#, 700#, NP-10, PNP-10, EL-40,1601#, 2000#, PF-690, BY-130, soil temperature-120 or has in the material of similar features one or more combination.
4, described stabilizing agent is one or more among ethylene glycol, polyethylene glycol, urea, the glycerine.
5, described synergist is one or more among piperonyl butoxide, Octachlorodipropyl Ether, the azone.Described myclobutanil micro-emulsion manufacturing process is:
Bulk myclobutanil is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and mix strongly in the homogenizer that dispersion medium water is housed and homogenize, promptly get the myclobutanil micro-emulsion product.
The advantage of this invention
Compared with prior art, myclobutanil micro-emulsion of the present invention has following advantage:
1, reduces environmental pollution.Aromatic organic solvent content is generally at 60-90% in the conventional nitrile bacterium azoles missible oil formulation, and only contains 1～20% in the microemulsion, reduced the usage amount of aromatic organic solvent, reduced environmental pollution.
2, improved drug effect.The soup oil droplet fineness that conventional cream preparation is mixed with when spraying emulsion is the 0.1-1.0 micron, and the oil droplet fineness of the sprinkling missible oil that microemulsion is joined is the 0.001-0.01 micron.
3, microemulsion of the present invention does not have oil slick and precipitation, and preparation is nonflammable, storing safety.
4, fungicide preparation preparing process of the present invention is simpler, easy to use, is suitable for large scale application.
Embodiment
For a better understanding of the present invention, the invention will be further described below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope that embodiment represents.
Embodiment 1:
9% myclobutanil micro-emulsion.Nitrile bacterium azoles 9.5g, cyclohexanone 6g, 34#5g, polyethylene glycol 4g, piperonyl butoxide 5g, water 70.5g.Bulk myclobutanil is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and mix strongly in the homogenizer that dispersion medium water is housed and homogenize, promptly get the myclobutanil micro-emulsion product.
Embodiment 2
12.5% myclobutanil micro-emulsion.Nitrile bacterium azoles 14g, cyclohexanone 8g, 34#6g, polyethylene glycol 6g, piperonyl butoxide 5g, water 61g.Bulk myclobutanil is dissolved in the solvent, drops into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and mix strongly in the homogenizer that dispersion medium water is housed and homogenize, promptly get the myclobutanil micro-emulsion product.
Claims (6)
1, a kind of preparation method of myclobutanil micro-emulsion, it is characterised in that, by weight percentage, contains nitrile bacterium azoles 1-20%, solvent 5-30%, stabilizing agent 5-10%, synergist 5-10%, emulsifier 5-30%, water 20-70%.
2, myclobutanil micro-emulsion according to claim 1 is characterized in that described cosolvent is meant dimethyl formamide, ethanol, isopropyl alcohol, n-butanol, n-amyl alcohol, acetone, cyclohexanone or has any one or two or more combinations in the material of similar features.
3, myclobutanil micro-emulsion according to claim 1 is characterized in that described emulsifier is meant 33#, 34#, 500#, 600#, 700#, NP-10, PNP-10, EL-40,1601#, 2000#, PF-690, BY-130, soil temperature-120 or has in the material of similar features one or more combination.
4, myclobutanil micro-emulsion according to claim 1 is characterized in that described stabilizing agent is one or more among ethylene glycol, polyethylene glycol, urea, the glycerine.
5, myclobutanil micro-emulsion according to claim 1 is characterized in that described synergist is one or more among piperonyl butoxide, Octachlorodipropyl Ether, the azone.
6, myclobutanil micro-emulsion according to claim 1, it is characterized in that nitrile bacterium azoles crude oil is dissolved in the solvent, drop into emulsifier, drop into synergist and stabilizing agent again, stir, put into then and mix strongly in the homogenizer that dispersion medium water is housed and homogenize, promptly get the myclobutanil micro-emulsion product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810101924A CN101530076A (en) | 2008-03-14 | 2008-03-14 | Preparation method of myclobutanil micro-emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810101924A CN101530076A (en) | 2008-03-14 | 2008-03-14 | Preparation method of myclobutanil micro-emulsion |
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| Publication Number | Publication Date |
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| CN101530076A true CN101530076A (en) | 2009-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810101924A Pending CN101530076A (en) | 2008-03-14 | 2008-03-14 | Preparation method of myclobutanil micro-emulsion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105123798A (en) * | 2015-07-28 | 2015-12-09 | 魏琦 | Method for preventing and treating loquat gray spot |
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2008
- 2008-03-14 CN CN200810101924A patent/CN101530076A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105123798A (en) * | 2015-07-28 | 2015-12-09 | 魏琦 | Method for preventing and treating loquat gray spot |
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Application publication date: 20090916 |