CN102696661A - Tefluthrine-containing microemulsion and preparation method thereof - Google Patents
Tefluthrine-containing microemulsion and preparation method thereof Download PDFInfo
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- CN102696661A CN102696661A CN201210218882XA CN201210218882A CN102696661A CN 102696661 A CN102696661 A CN 102696661A CN 201210218882X A CN201210218882X A CN 201210218882XA CN 201210218882 A CN201210218882 A CN 201210218882A CN 102696661 A CN102696661 A CN 102696661A
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Abstract
The invention belongs to the technical field of pesticides and particularly relates to a tefluthrine-containing microemulsion and a preparation method thereof. The tefluthrine-containing microemulsion provided by the invention comprises the following materials by weight percent: 1-20% of tefluthrine, 5-25% of emulsifier, 5-50% of solvent and cosolvent, 0.01-7% of antifreeze, 0.5-8% of stabilizer, 0.1-4% of pH regulator, and the balance of water. The tefluthrine-containing microemulsion provided by the invention is low in cost, simple in preparation process and low in packaging requirements, and can be widely applied to prevention of diseases of various crops such as fruits and vegetables; and with the adoption of the tefluthrine-containing microemulsion, the use of organic solvents is reduced, and the environmental pollution is low.
Description
Technical field
The invention belongs to technical field of pesticides, be specifically related to a kind of tefluthrin microemulsion and preparation method thereof that contains.
Background technology
Tefluthrin (tefluthrin) chemical name 2,3,5,6-tetrafluoro-methyl-benzyl (suitable)-(1RS, RS)-3-(2-chloro-2,3,3-trifluoropropyl-1-thiazolinyl)-2,2-dimethyl cyclopropane carboxylic acid ester belongs to chrysanthemum ester insecticide.Efficient to coleoptera, Lepidoptera and dipteral insect, volatility is good, can in gas phase, fully divide a word with a hyphen at the end of a line with the control soil pests.It can be by the underground water diafiltration at the degradation in soil product; In big Tanaka's about 1 month of the half life period, thereby it can keep longer residual effect to insect, and the unlikely extended residual that in soil, causes.
The continuous reinforcement of Along with people's environmental consciousness, to the organic solvent that uses in pesticidal preparations restriction increasingly stringent, in the cream preparation because of existing a large amount of organic solvents to be restricted gradually; Pulvis is easy to generate dust pollution in production, transportation, use, the processing power consumption is big, and the medicament particle diameter is big, influences medicament and absorbs the receipts conduction.And low-pollution water property agricultural chemicals is the new leading formulation of agricultural chemicals development.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.
Characteristics such as microemulsion is simpler with production technology, and particle diameter is little are able to blue or green hiding.Because pyrethroid phenols pesticide has the insecticidal activity height, consumption is few, residual quantity is low, little to mammal toxicity, be more suitable for the exploitation of micro-emulsion form.
Summary of the invention
The objective of the invention is, provide a kind of pyrethroid cruel type agricultural chemical insecticide, be specially a kind of micro-emulsion insecticide that contains tefluthrin and preparation method thereof; It saves resource with water as solvent, reduces environmental pollution; Production technology is simple simultaneously, and equipment investment is few, is convenient to penetration and promotion.
The present invention realizes through following technical solution for realizing above-mentioned purpose:
A kind of micro-emulsion insecticide that contains tefluthrin is grouped into by the one-tenth of following weight percentage:
The former medicine 1-20% of the tefluthrin of structural formula (1), emulsifier 5-25%, solvent and cosolvent 5-50%, emulsifier 5-25%, antifreezing agent 0.1-7%, stabilizing agent 0.5-8%, PH conditioning agent 0.1-4%, surplus is a water.
Said solvent be toluene, xylol, solvent naphtha, cyclohexanone, N-Methyl pyrrolidone, dimethyl sulfoxide (DMSO), carrene, diethyl phthalate, dimethyl formamide, ethyl acetate, acetone one or more, said cosolvent is an alcohols.
Said emulsifier phenethyl phenol polyethenoxy polyethenoxy ether, APES, AEO, castor oil polyoxyethylene ether, styrene phenol formaldehyde resin polyoxyethylene poly-oxygen propylene aether, phenethyl phenol polyethenoxy ether phosphate, APES sulfosuccinate ester, alkyl benzene calcium sulfonate, the mixing of one or more in sodium alkyl benzene sulfonate, alkyl diphenyl ether disulphonic acid sodium, the fatty acid methyl ester ethoxylate sulfonate.
Said antifreezing agent is one or more in ethylene glycol, propane diols, glycerine, polyethylene glycol, sorbierite or the urea.
Described stabilizing agent is one or more in 3-chloro-1,2 epoxy prapane, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, the sodium sorbate.
Described PH conditioning agent is a lactic acid, citric acid, one or more in the acetic acid.
The preparation method of tefluthrin microemulsion of the present invention does; Earlier the former medicine of tefluthrin, PH conditioning agent, emulsifier, solvent, stabilizing agent, antifreeze are mixed in agitated reactor; Add entry at last, stir into uniform and stable transparency liquid again, process uniform and stable tefluthrin microemulsion.
Raw material used in the present invention is the commercially available prod.
The present invention is with water to replace organic solvent, greatly reduces the cost of preparation, and the stronger market competitiveness is arranged, and to operator's safety, belongs to the environmental type formulations of pesticide, after applying, will produce great economic benefit and social benefit.
Embodiment
In order to understand technical scheme of the present invention better, below in conjunction with embodiment the present invention is described further, but the present invention is not limited thereto.(except that specifying, all percentages are mass percent.)
Embodiment 1: tefluthrin 2%, xylol 8%, castor oil polyoxyethylene ether 3%, phenethyl phenol polyethenoxy polyethenoxy ether 5%; Aliphatic acid polyethenoxy ether 5%, alkyl benzene calcium sulfonate 2%, isopropyl alcohol 2%, n-butanol 2%, 3-chloro-1; 2-expoxy propane 2%, citric acid 0.2% mixes; Add the water polishing, mix into transparent and homogeneous liquid, promptly get 2% tefluthrin microemulsion.
Embodiment 2: tefluthrin 5%, carrene 5%, xylol 10%, phenethyl phenol polyethenoxy ether 6%; Styrene phenol formaldehyde resin polyoxyethylene poly-oxygen propylene aether 5%, alkyl diphenyl ether disulphonic acid sodium 4%, phenethyl phenol polyethenoxy ether phosphate 3%, cresyl glycidyl ether 2%; Isopropyl alcohol 4%, n-butanol 2%, ethylene glycol 4%, lactic acid 0.1%; Mix, add the water polishing, mix into transparent and homogeneous liquid, promptly get 5% tefluthrin microemulsion.
Embodiment 3: tefluthrin 12.5%, N-Methyl pyrrolidone 4%, xylol 8%, phenethyl phenol polyethenoxy ether 5%, phenethyl phenol polyethenoxy polyethenoxy ether 4%; APES sulfosuccinate ester 4%, phenethyl phenol polyethenoxy ether phosphate 4%, 3-chloro-1,2 epoxy prapane 2%; Isopropyl alcohol 3%, n-butanol 2%, ethylene glycol 3%, citric acid 0.1%; Mix, add the water polishing, mix into transparent and homogeneous liquid, promptly get 12.5% tefluthrin microemulsion.
Embodiment 4: tefluthrin 20%, N-Methyl pyrrolidone 5%, xylol 12%, phenethyl phenol polyethenoxy ether 5%, phenethyl phenol polyethenoxy polyethenoxy ether 6%; Alkyl alcohol APEO 4%, fatty acid methyl ester ethoxylate sulfonate 4%, 3-chloro-1,2 epoxy prapane 2%; Isopropyl alcohol 4%, n-butanol 2%, ethylene glycol 4%, citric acid 0.1%; Mix, add the water polishing, mix into transparent and homogeneous liquid, promptly get 20% tefluthrin microemulsion.
Claims (7)
1. tefluthrin microemulsion, its active ingredient is tefluthrin, it is characterized in that; Each component is following by weight percentage: tefluthrin 1-20%, emulsifier 5-25%, solvent and cosolvent 5-50%; Emulsifier 5-25%, antifreezing agent 0.1-7%, stabilizing agent 0.5-8%; PH conditioning agent 0.1-4%, surplus is a water.
2. tefluthrin microemulsion according to claim 1; It is characterized in that; Said solvent is one or both in toluene, xylol, solvent naphtha, cyclohexanone, N-Methyl pyrrolidone, dimethyl sulfoxide (DMSO), carrene, diethyl phthalate, dimethyl formamide, ethyl acetate, the acetone, and said cosolvent is an alcohols.
3. tefluthrin microemulsion according to claim 1; It is characterized in that; Said emulsifier is phenethyl phenol polyethenoxy polyethenoxy ether, APES, AEO, castor oil polyoxyethylene ether, styrene phenol formaldehyde resin polyoxyethylene poly-oxygen propylene aether, phenethyl phenol polyethenoxy ether phosphate, APES sulfosuccinate ester, alkyl benzene calcium sulfonate, the mixing of one or more in sodium alkyl benzene sulfonate, alkyl diphenyl ether disulphonic acid sodium, the fatty acid methyl ester ethoxylate sulfonate.
4. tefluthrin microemulsion according to claim 1 is characterized in that, said antifreezing agent is one or more in ethylene glycol, propane diols, glycerine, polyethylene glycol, sorbierite or the urea.
5. tefluthrin microemulsion according to claim 1; It is characterized in that; Described stabilizing agent is one or more in 3-chloro-1,2 epoxy prapane, butyl glycidyl ether, phenyl glycidyl ether, cresyl glycidyl ether, polyethylene glycol diglycidyl ether, the sodium sorbate.
6. tefluthrin microemulsion according to claim 1 is characterized in that, described PH conditioning agent is a lactic acid, citric acid, one or more in the acetic acid.
7. according to the described tefluthrin microemulsion of the arbitrary claim of claim 1-6; Its preparation method does; Earlier the former medicine of tefluthrin, emulsifier, solvent, stabilizing agent, antifreeze are mixed in agitated reactor; Add entry at last, stir into uniform and stable transparency liquid again, process uniform and stable tefluthrin microemulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210218882XA CN102696661A (en) | 2012-06-29 | 2012-06-29 | Tefluthrine-containing microemulsion and preparation method thereof |
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| CN201210218882XA CN102696661A (en) | 2012-06-29 | 2012-06-29 | Tefluthrine-containing microemulsion and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027746A (en) * | 2017-04-10 | 2017-08-11 | 华南理工大学 | A kind of slow-release pesticide microemulsion and preparation method thereof |
| CN110150276A (en) * | 2019-06-20 | 2019-08-23 | 范强 | A kind of emulsifier and its application suitable for tembotrions aqueous emulsion |
| CN110463696A (en) * | 2018-05-09 | 2019-11-19 | 江苏龙灯化学有限公司 | It is a kind of to be suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037977A (en) * | 2011-01-18 | 2011-05-04 | 陕西上格之路生物科学有限公司 | Insecticidal composition containing thiacloprid amide and synthetic pyrethroid insecticide |
-
2012
- 2012-06-29 CN CN201210218882XA patent/CN102696661A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102037977A (en) * | 2011-01-18 | 2011-05-04 | 陕西上格之路生物科学有限公司 | Insecticidal composition containing thiacloprid amide and synthetic pyrethroid insecticide |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027746A (en) * | 2017-04-10 | 2017-08-11 | 华南理工大学 | A kind of slow-release pesticide microemulsion and preparation method thereof |
| CN110463696A (en) * | 2018-05-09 | 2019-11-19 | 江苏龙灯化学有限公司 | It is a kind of to be suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used |
| CN110150276A (en) * | 2019-06-20 | 2019-08-23 | 范强 | A kind of emulsifier and its application suitable for tembotrions aqueous emulsion |
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Application publication date: 20121003 |