CN106305709A

CN106305709A - Pesticide micro-emulsion

Info

Publication number: CN106305709A
Application number: CN201610697326.3A
Authority: CN
Inventors: 周斌; 彭述明; 康逢斌
Original assignee: Guangdong Zhongxun Agri Science Corp
Current assignee: Guangdong Zhongxun Agri Science Corp
Priority date: 2016-08-20
Filing date: 2016-08-20
Publication date: 2017-01-11

Abstract

The invention discloses pesticide micro-emulsion. The pesticide micro-emulsion comprises, by weight, 1%-40% of effective components, 5%-60% of environment-friendly solvents, 5%-12% of special auxiliaries and the balance deionized water. The pesticide micro-emulsion has the advantages that good effects can be realized by the pesticide micro-emulsion, and various performance indexes of preparation products can be qualified; auxiliary systems comprise the environment-friendly solvents, accordingly, the application amounts of organic solvents such as benzene with high toxicity can be reduced, and environmental pollution can be abated.

Description

A kind of microemulsion

Technical field

The present invention relates to Pesticide formulation field, be specifically related to a kind of microemulsion.

Background technology

Surfactant is indispensable necessary component during Pesticide formulation, auxiliary agent master in micro-emulsion formulation Will select according to the HLB value of prepared preparation, the HLB value of preparation is the most relevant with its solvent used and former medicine.Past agriculture In medicine preparation processing, a large amount of solvents used are the aromatic hydrocarbon solvent such as toluene, dimethylbenzene, for this employing aromatic hydrocarbon solvent body The pesticidal preparations of system, the selection of its special assistant has had substantial amounts of practical production experience, for particular kind of former medicine such as Organic phosphates, chrysanthemum esters etc. have had a lot of corresponding supporting special assistant, but the virtues such as toluene, dimethylbenzene, methanol There is the shortcomings such as flash-point low, volatile, inflammable and explosive, toxicity is high, long half time in varsol, a large amount of use to production safety, Health and ecological environment have bigger hidden danger.

In recent years national departments concerned put into effect successively a series of relevant policies limit even forbid that this kind solvent is at pesticide Use in preparation processing so that the light aromatic hydrocarbon solvent such as the hardly possible again with toluene of the manufacturing enterprises such as cream, dimethylbenzene adds Work pesticidal preparations, in this context, uses environment-friendly type solvent to substitute the light aromatic hydrocarbon solvent processing Pesticidal products such as toluene, dimethylbenzene Become the new outlet of preparation itself and manufacturing enterprise thereof.

The key issue that solvent substitutes is the application technology of solvent, and solvent application technology in pesticidal preparations relates generally to Being suitable for the screening of the auxiliary aid of this dicyandiamide solution, therefore, it is this ring that screening is suitable for the auxiliary aid system of certain environmentally friendly solvent Protect the premise that solvent is applied in microemulsion.Agricultural agent monomer and mixture Additives Products all compare many at present, and micro-at pesticide In the Emulsion course of processing, the agricultural agent monomer of single variety is used to be difficult to meet preparation processing requirement, existing mixture auxiliary agent Commodity the most also design for aromatic hydrocarbon solvent or some particular kind of former medicine, and for solving, environmentally friendly solvent system is micro- The mixture auxiliary agent of Emulsion processing problems has to be developed and perfect.

Sec-Butyl Acetate is a kind of at the wide variety of solvent of the industry such as coating, medicine, its open flash point 31 DEG C, rat warp Mouthful LD50 is 14000mg/kg (toluene be 7530mg/kg, dimethylbenzene be 4300mg/kg), relatively more safety and environmental protection, but acetic acid Secondary butyl ester is slightly stronger than benzene kind solvent due to polarity, is the most slowly dissolved in the water, therefore the report that sec-Butyl Acetate is in microemulsion Road is less, selects suitable adjuvant system particularly important；No. 100, No. 150 solvent naphthas mainly based on three, the mixing of durene Closing aromatic hydrocarbons, flash-point 63 DEG C, toxicity is low, and environmental pollution is little.Solvent naphtha can make as solvent or cosolvent in microemulsion is processed With.

Summary of the invention

It is an object of the invention to provide the special assistant of a kind of microemulsion, for sec-Butyl Acetate and No. 100, No. 150 solvent naphthas are as the preparation processing of the microemulsion of solvent.

In order to realize the object of the invention, technical scheme is as follows:

A kind of microemulsion, following components in percentage by weight forms: 1%-40% effective ingredient, 5%-60% environmental protection Solvent, 5%-12% special assistant, surplus are deionized water.

Described effective ingredient one in capillary, Affirm (Merck Co.), Difenoconazole etc.；

One or more in sec-Butyl Acetate, No. 100 solvent naphthas, No. 150 solvent naphthas of described environmentally friendly solvent Mixing；

One or both the mixing in ethanol, Ketohexamethylene of the described cosolvent；

Described special assistant is by 40%-60% disecoctylmaleate sodium sulfonate, 10%-40% poly alkyl alcohol Oxygen vinyl Ether, 15%-30% phenethyl phenol polyethenoxy ether and 10% alkyl diphenyl ether disulphonic acid (two) sodium composition.

When processing microemulsion, after effective ingredient is substantially dissolved in solvent, adds this by design addition and help Agent, through stirring.

Beneficial effects of the present invention is as follows:

1, the present invention provides a kind of new microemulsion auxiliary agent, and it is to sec-Butyl Acetate and No. 100, No. 150 solvents Oil has excellent emulsion dispersion effect as the microemulsion of solvent；

2, the microemulsion auxiliary agent that the present invention provides can process multiple different microemulsion product, it is possible to reduces In tradition cream preparation, the use of the harmful organic solvent such as toluene, dimethylbenzene, alleviates the pollution to environment, the development to microemulsion There is facilitation.

Detailed description of the invention

Special assistant of the present invention subject matter to be solved is with sec-Butyl Acetate and No. 100, No. 150 solvents Oil prepares problem as the processing of the microemulsion preparation of solvent, specifically includes the stable effective ingredients of prepared preparation Property, enter the main performances such as water emulsification dispersibility, dilution stability, cold storage and heat storage stability and to meet corresponding national standard.

Following example is prepared for tri-auxiliary agent samples of A, B, C, and picks basic, normal, high three differences accordingly and effectively become The microemulsion product dividing content is processed, and has certain representativeness；Agents useful for same and material in example, as without special theory Bright, all can be obtained by commercial sources, the percent in example is the mass percent of each component, the reality in preparation processing Former medicine addition is the addition after the purity conversion according to commercially available former medicine.Following instance is used for illustrating the present invention, but is not used to Limit the scope of the present invention.

Embodiment 1

Emulsifying agent A:

Embodiment 2

Emulsifying agent B:

Embodiment 3

Emulsifying agent C:

Embodiment 4

10% chlorfenapyr microemulsion formula:

Embodiment 5

5% Affirm (Merck Co.) micro-emulsion formulation:

Embodiment 6

20% micro-emulsion of phenyl ether methyl cyclic-azole formula:

Claims

1. a microemulsion, it is characterised in that described microemulsion consists of the following components in percentage by weight: 1%-40% Effective ingredient, 5%-60% environmentally friendly solvent, 5%-12% special assistant, surplus are deionized water.

2. according to a kind of microemulsion described in claim 1, it is characterised in that described effective ingredient is selected from worm demodicid mite One in nitrile, Affirm (Merck Co.), Difenoconazole etc..

3. according to a kind of microemulsion described in claim 1, it is characterised in that described environmentally friendly solvent is secondary selected from acetic acid The mixing of one or more in butyl ester, No. 100 solvent naphthas, No. 150 solvent naphthas；Described cosolvent is selected from ethanol, Ketohexamethylene In one or both mixing.

4. according to a kind of microemulsion described in claim 1, it is characterised in that described special assistant is by 40%- 60% disecoctylmaleate sodium sulfonate, 10%-40% fatty alcohol-polyoxyethylene ether, 15%-30% phenethyl phenol polyoxy Vinyl Ether and 10% alkyl diphenyl ether disulphonic acid (two) sodium composition.

5. according to a kind of microemulsion described in claim 1, it is characterised in that the percentage by weight of each component is: worm The former medicine of demodicid mite nitrile 10%, special assistant 10%, sec-Butyl Acetate 30%, ethanol 20%, deionized water surplus, through being sufficiently stirred for system ?.

6. according to a kind of microemulsion described in claim 1, it is characterised in that described special assistant is by 60% maleic Diacid di-sec-octyl sodium sulfonate, 20% fatty alcohol-polyoxyethylene ether, 10% phenethyl phenol polyethenoxy ether and 10% alkyl diphenyl Ether disulfonic acid (two) sodium forms.

7. according to a kind of microemulsion described in claim 1, it is characterised in that the percentage by weight of each component is: first The former medicine of amino abamectin benzoate 5.7%, special assistant 5.5%, Ketohexamethylene 8%, ethanol 10%, deionized water surplus, Prepare through being sufficiently stirred for.

8. according to a kind of microemulsion described in claim 7, it is characterised in that described special assistant is by 45% maleic Diacid di-sec-octyl sodium sulfonate, 40% fatty alcohol-polyoxyethylene ether, 5% phenethyl phenol polyethenoxy ether and 10% alkyl diphenyl ether Disulfonic acid (two) sodium forms.

9. according to a kind of microemulsion described in claim 1, it is characterised in that the percentage by weight of each component is: benzene The former medicine of ether methyl cyclic-azole 20%, special assistant 11%, 150# solvent naphtha 10%, ethanol 30%, deionized water surplus, through being sufficiently stirred for Prepare.

10. according to a kind of microemulsion described in claim 1, it is characterised in that described special assistant by 40% along fourth Enedioic acid di-sec-octyl sodium sulfonate, 20% fatty alcohol-polyoxyethylene ether, 30% phenethyl phenol polyethenoxy ether and 10% alkyl two Phenylate disulfonic acid (two) sodium forms.