CN101518228A - Aqueous emulsion with pyridaben as active component and preparation method thereof - Google Patents
Aqueous emulsion with pyridaben as active component and preparation method thereof Download PDFInfo
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- CN101518228A CN101518228A CN200810101134A CN200810101134A CN101518228A CN 101518228 A CN101518228 A CN 101518228A CN 200810101134 A CN200810101134 A CN 200810101134A CN 200810101134 A CN200810101134 A CN 200810101134A CN 101518228 A CN101518228 A CN 101518228A
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Abstract
The invention relates to an agricultural preparation, in particular to an aqueous emulsion with pyridaben as an active component and a preparation method thereof. The aqueous emulsion comprises components with the following weight percentages: 1) 1 percent to 40 percent of pyridaben; 2) 0.5 percent to 20 percent of cosolvent; 3) 0.5 percent to 12 percent of emulsifier; 4) 0.5 percent to 15 percent of dispersing agent; 5) 1.0 percent to 10.0 percent of stabilizing agent; and 6) 1 percent to 10 percent of antifreeze and the balance of water.
Description
Technical field
The present invention relates to a kind of pesticidal preparations, relating in particular to a kind of active ingredient is aqueous emulsion of pyridaben and preparation method thereof.
Background technology
Pyridaben (Pyridaben) has another name called pyridaben.It is the agent for killing mite and pest that Nissan Chemical Ind Ltd released in 1988.Pyridaben is tagging property of a low toxicity miticide, and it is all effective that the evil mite is respectively given birth to worm attitude (ovum, young mite, if mite, become mite), do not inhale conduction in not having.Control crop evil mite, particularly prevent and treat tetranychus telarius, Panonychus citri, rust mite, knurl mite killing rate 〉=95.1% of orange tree.Harmful mite crops such as cotton, apple, tea tree, wheats is all obtained satisfied control efficiency.The pyridaben test of pesticide effectiveness and field demonstration test show to have following characteristics: the 1 full property of killing: to ovum, the young mite of the whole growth process of mite with become mite that favorable effect is arranged; 2 high acaricidal activities: various harmful mites are all had high activity, kill the mite spectrum extensively; 3 quick-acting; Can act on harmful mite rapidly, thereby the density of mite is descended rapidly; 4 lasting effects: a dispenser can suppress the generation of mite in 30-45 days time; 5 no cross resistances: and can use with common insecticide; 6 non-responses to temperature: pyridaben is subjected to temperature, and environmental influence is little, and resistance of rainwater washing against.
Along with the continuous reinforcement of people's environmental consciousness, and to the demand of pollution-free food, the toxicity of agricultural chemicals and residual effect have caused that people pay close attention to greatly.In developed countries such as the U.S., the organic solvent restriction increasingly stringent to using in the pesticidal preparations cause the use of emulsifiable concentrates for agricultural chemicals to be restricted gradually, and the low-pollution water agricultural chemicals is the new leading formulation of agricultural chemicals development in recent years.Therefore, water-based pesticides such as development microemulsion, aqueous emulsion, for the structure that changes China's formulations of pesticide, and the protection environment, all be significant.
Summary of the invention
The purpose of this invention is to provide a kind of active ingredient is aqueous emulsion of pyridaben and preparation method thereof.
Another object of the present invention is to substitute most of organic solvent with water, in order to reducing environmental pollution, saves resource, reduces production costs, and is convenient to the user, the producer promotes the use of.
A kind of pyridaben aqueous emulsion, it is an effective ingredient with the pyridaben, has following component in percentage by weight formulated:
1) 1-40% pyridaben by weight;
2) by weight the 0.5-20% cosolvent
3) 0.5-12% emulsifier by weight;
4) 0.5-15% dispersant by weight;
5) 1.0-10.0% stabilizing agent by weight;
6) 1-10% antifreezing agent by weight;
7) water surplus
The preferred weight percent of each composition of pyridaben aqueous emulsion of the present invention:
1) 5-30% pyridaben by weight;
2) by weight the 1-15% cosolvent
3) 1.0-12% emulsifier by weight;
4) 1.0-15% dispersant by weight;
5) 1.0-4.0% stabilizing agent by weight
6) 2-10% antifreezing agent by weight;
7) water surplus
Emulsifier of the present invention is aliphatic acid polyethenoxy phosphoric acid ester, aralkyl phenol polyethenoxy ether phosphoric acid ester, alkyl polyoxyethylene ether phosphoric acid ester, alkyl phenyl polyoxyethylene ether phosphate class, alkylphenol polyoxyethylene phosphoric acid ester.
Dispersant of the present invention is Sodium Polyacrylate, maleic anhydride/acrylic copolymer and acrylic acid/hydroxypropyl acrylate copolymer, and polyacrylic acid, molecular weight are 1000-10000.
Antifreezing agent of the present invention is an ethylene glycol, glycerine, propane diols, urea.
Cosolvent of the present invention is methyl alcohol, dimethylbenzene, toluene, solvent naphtha.
Stabilizing agent of the present invention is epoxidized soybean oil, epoxy linseed oil, epoxy castor oil or epoxychloropropane.
Water of the present invention is deionized water, distilled water or running water.
The preparation technology of pyridaben aqueous emulsion of the present invention, its preparation process is as follows:
Get above-mentioned raw materials by weight percent, at first pyridaben and organic solvent are mixed under mechanical agitation, form oil phase; Water and stabilizing agent, antifreezing agent, emulsifier are dropped in the emulsification Scattered Kettle, and begin to stir under 1000-20000 rev/min rotating speed, its optimum speed is 5000-15000 rev/min; Then oil phase is dropped in the emulsification Scattered Kettle, stirred 20-120 minute, the best stirring 30-60 minute makes it to become even emulsion.
Specific embodiments
The present invention describes for example with following enforcement.
Example 1 5.0% pyridaben aqueous emulsion
Pyridaben 5.0%
Dimethylbenzene 3.0%
Aliphatic acid polyethenoxy phosphate 6.0%
Sodium Polyacrylate 3.0%
Epoxidized soybean oil 1.0%
Ethylene glycol 3.0%
Deionized water to 100%
When process water emulsion, in the emulsification Scattered Kettle, carry out, at first load weighted pyridaben and organic solvent are mixed under mechanical agitation, form oil phase; Water and stabilizing agent, antifreezing agent, emulsifier, dispersant are put in the emulsification Scattered Kettle, and under 5000 rev/mins rotating speed, begun to stir; Then oil phase is dropped in the emulsification Scattered Kettle, stirred 30-50 minute, make it to become even emulsion.
Example 2 10.0% pyridaben aqueous emulsions
Pyridaben 10.0%
Dimethylbenzene 6.0%
Alkyl phenyl polyoxyethylene ether phosphate 8.0%
Polyacrylic acid 3.0%
Epoxidized soybean oil 2.0%
Glycerine 4.0%
Deionized water to 100%
When process water emulsion, in the emulsification Scattered Kettle, carry out, at first load weighted pyridaben and dimethylbenzene are mixed under mechanical agitation, form oil phase; Water and epoxidized soybean oil, glycerine, alkyl phenyl polyoxyethylene ether phosphate, polyacrylic acid are put in the emulsification Scattered Kettle, and under 8000 rev/mins rotating speed, begun to stir; Then oil phase is dropped in the emulsification Scattered Kettle, stirred 30-45 minute, make it to become even emulsion.
Example 3 15.0% pyridaben aqueous emulsions
Pyridaben 15.0%
Dimethylbenzene 10.0%
Aralkyl phenol polyethenoxy ether phosphate 10.0%
Hydroxypropyl acrylate copolymer 3.0%
Epoxychloropropane 3.0%
Propane diols 4.0%
Deionized water to 100%
When process water emulsion, in the emulsification Scattered Kettle, carry out, at first load weighted pyridaben and dimethylbenzene are mixed under mechanical agitation, form oil phase; Deionized water and epoxychloropropane, propane diols, aralkyl phenol polyethenoxy ether phosphate, polyacrylic acid are put in the emulsification Scattered Kettle, and under 6000 rev/mins rotating speed, begun to stir; Then oil phase is dropped in the emulsification Scattered Kettle, stirred 30-40 minute, make it to become even emulsion.
Example 4 25.0% pyridaben aqueous emulsions
Pyridaben 15.0%
Methyl alcohol 10.0%
Alkyl polyoxyethylene ether phosphate 10.0%
Polyacrylic acid 3.0%
Epoxychloropropane 3.0%
Urea 4.0%
Deionized water to 100%
When process water emulsion, in the emulsification Scattered Kettle, carry out, at first load weighted pyridaben and methyl alcohol are mixed under mechanical agitation, form oil phase; Deionized water and epoxychloropropane, urea, alkyl polyoxyethylene ether phosphate, polyacrylic acid are put in the emulsification Scattered Kettle, and under 8000 rev/mins rotating speed, begun to stir; Then oil phase is dropped in the emulsification Scattered Kettle, stirred 30-40 minute, make it to become even emulsion.
Claims (8)
1. active ingredient aqueous emulsion that is pyridaben and preparation method thereof, it comprises
1) 1-40% pyridaben by weight;
2) by weight the 0.5-20% cosolvent
3) 0.5-12% emulsifier by weight;
4) 0.5-15% dispersant by weight;
5) 1.0-10.0% stabilizing agent by weight;
6) 1-10% antifreezing agent by weight;
7) water surplus
2. according to the aqueous emulsion of claim 1, wherein
1) weight meter 5-30% pyridaben;
2) by weight the 1-15% cosolvent;
3) 1.0-12% emulsifier by weight;
4) 1.0-15% dispersant by weight;
5) 1.0-4.0% stabilizing agent by weight;
6) 2-10% antifreezing agent by weight;
7) water surplus
3. according to the aqueous emulsion of claim 1 or 2, wherein emulsifier is selected from aliphatic acid polyethenoxy phosphoric acid ester, aralkyl phenol polyethenoxy ether phosphoric acid ester, alkyl polyoxyethylene ether phosphoric acid ester, alkyl phenyl polyoxyethylene ether phosphate class, alkylphenol polyoxyethylene phosphoric acid ester.
4. according to the aqueous emulsion of claim 1 or 2, wherein dispersant is selected from Sodium Polyacrylate, maleic anhydride/acrylic copolymer and acrylic acid/hydroxypropyl acrylate copolymer, and polyacrylic acid, molecular weight are 1000-10000.
5. feel the aqueous emulsion of claim 1 or 2, wherein stabilizing agent is selected from epoxidized soybean oil, epoxy linseed oil, epoxy castor oil or epoxychloropropane.
6. according to the aqueous emulsion of claim 1 or 2, wherein cosolvent is selected from methyl alcohol, dimethylbenzene, toluene, solvent naphtha.
7. according to the aqueous emulsion of claim 1 or 2, wherein antifreezing agent is selected from ethylene glycol, glycerine, propane diols, urea.
8. according to the aqueous emulsion of claim 1 or 2, wherein wet concentration is from deionized water, distilled water or running water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101011347A CN101518228B (en) | 2008-02-28 | 2008-02-28 | Aqueous emulsion with pyridaben as active component and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101011347A CN101518228B (en) | 2008-02-28 | 2008-02-28 | Aqueous emulsion with pyridaben as active component and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101518228A true CN101518228A (en) | 2009-09-02 |
| CN101518228B CN101518228B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101011347A Expired - Fee Related CN101518228B (en) | 2008-02-28 | 2008-02-28 | Aqueous emulsion with pyridaben as active component and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113488A (en) * | 2010-12-30 | 2011-07-06 | 青岛泰生生物科技有限公司 | Cyflumetofen-containing insecticidal/acaricidal composition |
| CN102177889A (en) * | 2011-03-15 | 2011-09-14 | 广东中迅农科股份有限公司 | Difenoconazole water emulsion and preparation method thereof |
| IT202100026528A1 (en) * | 2021-10-06 | 2023-04-06 | Workem Srl | USE OF EPOXIDIZED VEGETABLE OILS AS TANNING AGENTS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442979C (en) * | 2005-09-23 | 2008-12-17 | 四川省化学工业研究设计院 | Sulfur-phosphor/ pyridazinone acaricides compound insect-killing mite-killing agent |
-
2008
- 2008-02-28 CN CN2008101011347A patent/CN101518228B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113488A (en) * | 2010-12-30 | 2011-07-06 | 青岛泰生生物科技有限公司 | Cyflumetofen-containing insecticidal/acaricidal composition |
| CN102177889A (en) * | 2011-03-15 | 2011-09-14 | 广东中迅农科股份有限公司 | Difenoconazole water emulsion and preparation method thereof |
| IT202100026528A1 (en) * | 2021-10-06 | 2023-04-06 | Workem Srl | USE OF EPOXIDIZED VEGETABLE OILS AS TANNING AGENTS |
| WO2023057944A1 (en) * | 2021-10-06 | 2023-04-13 | Workem S.R.L. Unipersonale | Use of epoxidized vegetable oils as tanning agents |
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| Publication number | Publication date |
|---|---|
| CN101518228B (en) | 2012-05-23 |
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