CN1860885A - High efficiency microemulsion of Cyhalothrin and its prepn. method - Google Patents
High efficiency microemulsion of Cyhalothrin and its prepn. method Download PDFInfo
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- CN1860885A CN1860885A CN 200510043517 CN200510043517A CN1860885A CN 1860885 A CN1860885 A CN 1860885A CN 200510043517 CN200510043517 CN 200510043517 CN 200510043517 A CN200510043517 A CN 200510043517A CN 1860885 A CN1860885 A CN 1860885A
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- betacyfluthrin
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Abstract
An effective insecticiding and miticiding microemulsion is proportionally prepared from beta-cyfluthrin, emulsifier, solvent, synergistic assistant, stabilizer and water through dissolving, adding others, and stirring while slowly adding residual water until it becomes transparent.
Description
Technical field
The present invention relates to a kind of agricultural chemicals betacyfluthrin microemulsion novel form, specifically betacyfluthrin microemulsion and production method thereof.
Background technology
Betacyfluthrin has another name called hundred and sets, English name Naythroid, CA subject index name and CAS accession number: cyano (4-fluoro-3-phenoxyphenyl) methyl-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate (9CI) [68359-37-5].
Chemical formula:
Molecular weight: 434.3.Pure product are that white crystal is tasteless.The betacyfluthrin microemulsion belongs to the transposition product of cyfloxylate, and is therefore more efficient than cyfloxylate.This product has efficiently, wide spectrum, moderate toxicity, low-residual, hold the characteristics such as long, that quick-acting is good, resistance is little of imitating, insect, evil mite had extremely strong stomach toxicity and action of contace poison, can be widely used in various crop pests such as root, cotton, fruits and vegetables, cigarette, tea, the control of evil mite, the first-selected kind of Ceng Zuowei pyrethroid pesticide.Being used for the control of insects such as cotton bollworm, also is to prevent and treat wheat aphid one of pyrethrin pesticide kind the most efficiently at present.
At present the main formulation of betacyfluthrin preparation be 2.5% protect missible oil.Active ingredient and auxiliary agent account for 10% in this product, and all the other compositions of nearly 90% are benzene class organic solvent.A large amount of uses of benzene kind solvent, not only unfavorable to reducing this production cost of products, and also have a negative impact to producing storing safety and environmental protection etc.Along with the public to the enhancing of environmental consciousness and to the requirement of environmental protection agricultural chemicals, some are the important trend that the aqueous pesticide of solvent becomes formulations of pesticide development from now on water.
Microemulsion is to be matrix with water, and by former medicine dissolving, the microemulsified process forms the homogeneous stability system.The micella particle diameter is less than optical wavelength in the system, so the microemulsion appearance transparent is like missible oil.Because its auxiliary agent content height, emulsified particles is little, and the opening up of its soup, wetting, infiltration and filming function are better than cream preparation, so the effective rate of utilization of its soup is higher, and its drug effect is 1.2～1.5 times of cream preparation under identical effective dose.Primary solvent is a water in the microemulsion, has not only saved a large amount of organic solvents, has reduced production cost, and the also favourable pressure that alleviates environmental pollution to the development green agriculture, is kept the Agro-ecology balance and is significant.
Summary of the invention
The purpose of this invention is to provide a kind of is the microemulsion formulation and the production method thereof of active ingredient with the betacyfluthrin.
The technical solution used in the present invention is: by experiment sieving and the research to cosolvent, emulsifier, builder etc., substitute a large amount of poisonous inflammable benzene kind solvents with water, reduce product toxicity and production cost, reduce environmental pollution, improve and produce and the storing safety; Microemulsion emulsifier large usage quantity, it is little to convert water dilution back active ingredient particle, the opening up of soup, wetting permeability are strong, the utilization rate of active components height, builder reduces the active ingredient actual amount, improves preventive effect and reduces the purpose of preventing and treating cost thereby play favourable with the body surface resistance in the body of elimination pest in addition.
Betacyfluthrin microemulsion formulation of the present invention is made up of the former medicine of betacyfluthrin, cosolvent, emulsifier, builder (add or do not add), stabilizing agent (add or do not add) and water, and wherein each weight percentages of components is:
Betacyfluthrin 1～10%
Emulsifier 5～20%
Cosolvent 1～20%
Builder 0～10%
Stabilizing agent 0～10%
Water adds to 100%
Cosolvent described in the above-mentioned betacyfluthrin microemulsion is selected from aromatic solvent such as toluene, dimethylbenzene etc., C
1～5Monohydric alcohol such as methyl alcohol, ethanol etc., acetone, cyclohexanone, dimethyl formamide, methyl-sulfoxide have similar features or the material of performance in any one or two kinds of above combinations.
Above-mentioned emulsifier is selected from produces agricultural chemicals with one or both or two or more compounds in known emulsifier such as alkylphenol polyoxyethylene series, agricultural emulsifier NO series, castor oil polyoxyethylene ether series, phenethyl phenol polyethenoxy ether formaldehyde condensation products, the dodecyl benzene sulfonate.(as the QK-7 emulsifier).
Above-mentioned builder be selected from Butacide, synergy phosphorus, Octachlorodipropyl Ether, azone, thiophene ketone, JK, AEO-5, fast penetrant T have similar features or the surface reactive material of performance in one or more combination.
Above-mentioned stabilizing agent be selected from ethylene glycol, polyethylene glycol, propane diols, urea, glycerine have similar features or the material of performance in one or more combination.
This efficient betacyfluthrin microemulsion formulation can be with known method production, betacyfluthrin is dissolved with cosolvent, add emulsifier, add or do not add builder, add or do not add stabilizing agent, after stirring, slowly add excess water under stirring, be stirred well to homogeneous phase transparent liquid at last and promptly get betacyfluthrin microemulsion of the present invention.The preferred using method of this microemulsion is spraying, can be used for protecting the various insects of missible oil control, the evil mite.
Advantage of the present invention and good effect are:
1. microemulsion appearance transparent of the present invention, dilution back emulsion does not have precipitation and oil slick, and auxiliary agent is nonflammable, produces and storing safety.
2. reduced environmental pollution, aromatic solvent content is high by 50～70% in the conventional cream preparation, and only contains 5～30% in the microemulsion, and poisonous, inflammable organic solvent amount significantly reduces, thereby has reduced the pollution to environment.
3. reduce production and use cost, improved drug effect.Microemulsion is compared with missible oil, it is little more than 10 times to convert water dilution back active ingredient particle diameter, penetrability to target increases substantially, the opening up of soup, wetability and utilization rate of active components are also than big many of missible oil, therefore, the effective dose that reaches identical preventive effect microemulsion is few than missible oil, add and reduced consumption of organic solvent in the production, its produce and use cost all lower.Through test 2.5% betacyfluthrin microemulsion and contrast agents 2.5% protect missible oil all dilute 2500 times the control wheat aphids, after 1 day preventive effect the former be 98.3%, the latter is 91.0%.Microemulsion of the present invention preventive effect to wheat aphid under same dose obviously is better than its cream preparation.Below in conjunction with embodiment the present invention is made more specific description, but embodiment does not limit the present invention, the percentage among the embodiment is percetage by weight.
Experimental example 1
Select following prescription:
Betacyfluthrin 1%
Toluene 2%
N-butanol 4%
OP-7 2％
QK-7 10％
Water adds to 100%
During production,, add OP-7 and QK-7 emulsifier, slowly add excess water after stirring evenly, continue stirring and got homogeneous phase transparent liquid in 15～20 minutes, promptly get 1% betacyfluthrin microemulsion former medicinal toluene of betacyfluthrin and n-butanol dissolving.1000 times of liquid of microemulsion dilution of the present invention, 1 day preventive effect 95.8% behind the control wheat ear aphid medicine.
Embodiment 2
Select following prescription:
Betacyfluthrin 2.5%
Toluene 5%
Ethanol 5%
Azone 1.5%
Butacide 5%
Butanols 5%
QK-7 15％
No. 700 2%
Water adds to 100%
The preparation method gets 2.5% betacyfluthrin microemulsion with embodiment 1.3 days preventive effect 94.1%. behind 2000 times of controls of microemulsion dilution of the present invention diamond-back moth medicine
Embodiment 3
Select following prescription:
Betacyfluthrin 5%
Toluene 8%
Ethanol 4%
N-butanol 5%
Fast penetrant T 5%
QK-7 emulsifier 17%
No. 601 2%
Urea 5%
Water adds to 100%
The preparation method gets 5% betacyfluthrin microemulsion with embodiment 1.5 days preventive effects are 96.0% behind 5000 times of controls of microemulsion dilution of the present invention cabbage caterpillar medicine.
Embodiment 4
Select following prescription:
Betacyfluthrin 10%
Toluene 15%
Cyclohexanone 5%
No. 700 2%
QK-7 emulsifier 18%
OP-8 2％
Ethylene glycol 4%
Water adds to 100%
The preparation method gets 10% betacyfluthrin microemulsion with embodiment 1.10000 times of controls of microemulsion dilution of the present invention apple yellow aphid, 1 day preventive effect reaches 98.4% behind the medicine.
Claims (6)
1. betacyfluthrin microemulsion is characterized in that comprising following composition and content (by weight):
Betacyfluthrin 1～10%
Emulsifier 5～20%
Cosolvent 1～20%
Builder 0～10%
Stabilizing agent 0～10%
Surplus is a water.
2. betacyfluthrin microemulsion according to claim 1 is characterized in that described cosolvent is selected from aromatic solvent such as toluene, dimethylbenzene etc., C
1～5Monohydric alcohol such as methyl alcohol, ethanol etc., acetone, cyclohexanone, dimethyl formamide, methyl-sulfoxide have similar features or the material of performance in any one or two kinds of above combinations.
3. betacyfluthrin microemulsion according to claim 1, it is characterized in that described emulsifier is selected from one or both or the two or more compounds in alkylphenol polyoxyethylene series, agricultural emulsifier NO series, castor oil polyoxyethylene ether series, phenethyl phenol polyethenoxy ether formaldehyde condensation products, the dodecyl benzene sulfonate.(as the QK-7 emulsifier).
4. betacyfluthrin microemulsion according to claim 1, it is characterized in that, described builder be selected from Butacide, synergy phosphorus, Octachlorodipropyl Ether, azone, thiophene ketone, fast penetrant T, fatty alcohol-polyoxyethylene ether have similar features or the surface reactive material of performance in one or more combination.
5. betacyfluthrin microemulsion according to claim 1 is characterized in that, described stabilizing agent be selected from ethylene glycol, polyethylene glycol, propane diols, urea, glycerine have similar features or the material of performance in one or more combination.
6. the production method of betacyfluthrin microemulsion according to claim 1, it is characterized in that the former medicine of betacyfluthrin is dissolved in the cosolvent, add emulsifier, add or do not add builder, add or do not add stabilizing agent, stir, slowly add excess water, be stirred well to homogeneous phase transparent liquid, promptly get the betacyfluthrin microemulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043517 CN1860885A (en) | 2005-05-12 | 2005-05-12 | High efficiency microemulsion of Cyhalothrin and its prepn. method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510043517 CN1860885A (en) | 2005-05-12 | 2005-05-12 | High efficiency microemulsion of Cyhalothrin and its prepn. method |
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| Publication Number | Publication Date |
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| CN1860885A true CN1860885A (en) | 2006-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510043517 Pending CN1860885A (en) | 2005-05-12 | 2005-05-12 | High efficiency microemulsion of Cyhalothrin and its prepn. method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102907420A (en) * | 2012-10-30 | 2013-02-06 | 姜燕 | Insect aerosol synergist |
-
2005
- 2005-05-12 CN CN 200510043517 patent/CN1860885A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102907420A (en) * | 2012-10-30 | 2013-02-06 | 姜燕 | Insect aerosol synergist |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |