CN101822269B - Water-based cypermethrin pesticide microemulsion - Google Patents
Water-based cypermethrin pesticide microemulsion Download PDFInfo
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- CN101822269B CN101822269B CN 201010180470 CN201010180470A CN101822269B CN 101822269 B CN101822269 B CN 101822269B CN 201010180470 CN201010180470 CN 201010180470 CN 201010180470 A CN201010180470 A CN 201010180470A CN 101822269 B CN101822269 B CN 101822269B
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Abstract
The invention belongs to the technical field of pesticide preparations, in particular to a water-based cypermethrin pesticide microemulsion. The water-based cypermethrin pesticide microemulsion is characterized by being prepared from the following materials in percentage by weight: 1.5-5% of cypermethrin, 5-10% of triton X-100, 5-15% of sodium dodecyl benzene sulfonate, 3-16% of cosurfactant and the balance deionized water. The cypermethrin pesticide microemulsion of the invention has fewer organic solvents, a proper amount of the surfactant and other auxiliaries, has no poisonous and flammable aromatic solvents, is a transparent single-phase liquid and belongs to a green pesticide preparation.
Description
Technical field
The invention belongs to technical field of pesticide preparations, be specifically related to a kind of aqua type microemulsion of cypermethrin.
Background technology
Cypermethrin has very high stomach toxicity and action of contace poison to insect, has ovicidal activity, and insecticidal spectrum is wide, and the agriculture and forestry injurious insects such as cotton, vegetables, fruit tree and the sanitary insect pests such as mosquitos and flies, cockroach, flea, bedbug and ant are had high killing effect.Be usually used in aerial fog pesticide and emulsifiable concentrates for agricultural chemicals compounded pesticides, main formulation is 5% missible oil, and consumption of organic solvent is up to more than 80%.
Along with the pay attention to day by day of people to environment, the feature of environmental protection problem that solves agricultural chemicals has been subject to paying attention to widely.Advocate environment friendly agricultural, Devoting Major Efforts To Developing Green Chemical Technology and environment friendly agricultural preparation become the wisdom of the pesticide industry strategy of sustainable development and select.In order to make pesticide industry become the industry of sustainable development, must change agricultural chemicals environment is produced dysgenic image, agricultural chemicals should be walked the road of environment friendly agricultural, the concept of environment friendly agricultural also comprises the environment friendly agricultural preparation, advocate and use low toxicity, the oligosaprobic formulations of pesticide and relevant filler, solvent, auxiliary agent, one of them effective measures reduces consumption of organic solvent exactly, thereby reduces organic solvent to the pollution of environment.
Summary of the invention
In order to solve the heavy-polluted problem of existing cypermethrin aerial fog pesticide and the existence of emulsifiable concentrates for agricultural chemicals compounded pesticides, the invention provides a kind of aqua type microemulsion of cypermethrin, this aqua type microemulsion can reduce the pollution to environment effectively.
The aqua type microemulsion of cypermethrin of the present invention is formulated by the material of following mass percent:
Cypermethrin 1.5-5
Triton x-100 5-10
Neopelex 5-15
Cosurfactant 3-16
Deionized water is supplemented to 100
The compound method of the aqua type microemulsion of above-mentioned cypermethrin is: under 25 ℃, first neopelex, triton x-100, cosurfactant and deionized water are fully mixed in proportion; Again cypermethrin is added in the above-mentioned mixed system, stirs, it is mixed, can make cypermethrin aqua type microemulsion.
Wherein cosurfactant refers to ethanol, propyl alcohol, n-butanol, polyethylene glycol series, isoamyl alcohol, ethyl butyrate and butanone etc.
The emulsifier that the present invention uses is the mixture of triton x-100 and neopelex.Triton x-100 is a kind of non-ionic surface activator, and neopelex is anion surfactant, and biological degradability can be greater than 90%, and the environmental pollution degree is little; The thermodynamic stability of this type of mixed system microemulsion is good, and non-crystallizable in the dilution, surface tension is low, is conducive at vegetation and insect surface sorption.
Cypermethrin microemulsion of the present invention is only used a small amount of organic solvent, contains proper amount of surfactant and other auxiliary agents, does not contain poisonous inflammable aromatic hydrocarbon solvent, is transparent single-phase liquid, belongs to the environment friendly agricultural preparation.
Embodiment
Embodiment one
Scheme 1
(1) under 25 ℃, 15% neopelex 0.75g, 10% triton x-100 0.5g, 16% n-butanol 0.8g and deionized water surplus 2.7g are fully mixed.
(2) 5% former medicine cypermethrin (99%) 0.25g progressively is added drop-wise in the above-mentioned system, concussion is stirred, and it is mixed, and gross mass is 5g, can make the cypermethrin microemulsion.
Scheme 2
(1) under 25 ℃, 15% neopelex 0.75g, 10% triton x-100 0.5g, 14% isoamyl alcohol 0.7g and deionized water surplus 2.9g are fully mixed.
(2) 3% former medicine cypermethrin (99%) 0.15g progressively is added drop-wise in the above-mentioned system, concussion is stirred, and it is mixed, and gross mass is 5g, can make the cypermethrin microemulsion.
Scheme 3
(1) under 25 ℃, 10% neopelex 0.5g, 10% triton x-100 0.5g, 10% polyethylene glycol series 0.5g and deionized water surplus 3.375g are fully mixed.
(2) 2.5% former medicine cypermethrin (99%) 0.125g progressively is added drop-wise in the above-mentioned system, concussion is stirred, and it is mixed, and gross mass is 5g, can make the cypermethrin microemulsion.
Scheme 4
(1) under 25 ℃, 15% neopelex 0.75g, 5% triton x-100 0.25g, 8% propyl alcohol 0.4g and deionized water surplus 3.5g are fully mixed.
(2) 2% former medicine cypermethrin (99%) 0.1g progressively is added drop-wise in the above-mentioned system, concussion is stirred, and it is mixed, and gross mass is 5g, can make the cypermethrin microemulsion.
Scheme 5
(1) under 25 ℃, 5% neopelex 0.25g, 10% triton x-100 0.5g, 3% ethanol 0.15g and deionized water surplus 4.025g are fully mixed.
(2) 1.5% former medicine cypermethrin (99%) 0.075g progressively is added drop-wise in the above-mentioned system, concussion is stirred, and it is mixed, and gross mass is 5g, can make the cypermethrin microemulsion.
Embodiment two: study on the stability:
Heat storage stability:
Getting the 2ml microemulsion and be contained in the clear, colorless teat glass sealing and be placed on around 50 ± 1 ℃ of insulating boxs store, if the outward appearance homogeneous phase transparent multilevel recovery perhaps occurs and recovers to the room temperature jolting, then is qualified.
Refrigerated stability:
Get 2ml and be contained in the clear, colorless teat glass, refrigerate 24h in airtight being placed on-5 ℃-0 ℃ of refrigerator.Piece or muddiness die down if freeze, and to recover pellucidity centrifugal not stratified for qualified.
Cloud point is measured:
Get 2ml and in teat glass, seal and be placed in the frozen water liquid, stir cooling, till occurring muddy or freezing, write down transition temperature, be transparent lower limit.
Again test tube is placed water-bath, the speed that per minute is 2 ℃ is slowly accelerated, and writes down muddy temperature, is transparent ceiling temperature.Require-5 ℃-60 ℃ cloud point not occur.
Heat storage stability refrigerated stability cloud point is measured
Cloud point does not appear in scheme 1 homogeneous phase transparent homogeneous phase transparent
Cloud point does not appear in scheme 2 homogeneous phase transparent homogeneous phase transparent
Cloud point does not appear in scheme 3 homogeneous phase transparent homogeneous phase transparent
Cloud point does not appear in scheme 4 homogeneous phase transparent homogeneous phase transparent
Cloud point does not appear in scheme 5 homogeneous phase transparent homogeneous phase transparent
Claims (1)
1. the aqua type microemulsion of a cypermethrin is characterized in that, is formulated by the material of following mass percent: cypermethrin 1.5-5%, triton x-100 5-10%, neopelex 5-15%, cosurfactant 3-16%, surplus is deionized water; Described cosurfactant is n-butanol, isoamyl alcohol, propyl alcohol or ethanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010180470 CN101822269B (en) | 2010-05-21 | 2010-05-21 | Water-based cypermethrin pesticide microemulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010180470 CN101822269B (en) | 2010-05-21 | 2010-05-21 | Water-based cypermethrin pesticide microemulsion |
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| Publication Number | Publication Date |
|---|---|
| CN101822269A CN101822269A (en) | 2010-09-08 |
| CN101822269B true CN101822269B (en) | 2013-01-23 |
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| CN 201010180470 Expired - Fee Related CN101822269B (en) | 2010-05-21 | 2010-05-21 | Water-based cypermethrin pesticide microemulsion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103783038A (en) * | 2014-02-28 | 2014-05-14 | 江苏省激素研究所股份有限公司 | Synthetic method of cyhalothrin water base type microemulsion |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801754A (en) * | 2018-06-06 | 2018-11-13 | 华兰生物工程重庆有限公司 | A method of improving human serum albumin Aluminium residual repeatability |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0215303A2 (en) * | 1985-08-19 | 1987-03-25 | S.C. Johnson & Son, Inc. | Aqueous pyrethroid insecticidal formulations and method of increasing the stability thereof |
| CN101415326A (en) * | 2006-03-29 | 2009-04-22 | 巴斯夫欧洲公司 | Aqueous microemulsions containing pyrethroid compounds |
-
2010
- 2010-05-21 CN CN 201010180470 patent/CN101822269B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0215303A2 (en) * | 1985-08-19 | 1987-03-25 | S.C. Johnson & Son, Inc. | Aqueous pyrethroid insecticidal formulations and method of increasing the stability thereof |
| CN101415326A (en) * | 2006-03-29 | 2009-04-22 | 巴斯夫欧洲公司 | Aqueous microemulsions containing pyrethroid compounds |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103783038A (en) * | 2014-02-28 | 2014-05-14 | 江苏省激素研究所股份有限公司 | Synthetic method of cyhalothrin water base type microemulsion |
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| CN101822269A (en) | 2010-09-08 |
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