CN1943339A - Pesticide water emulsion and its preparing method - Google Patents
Pesticide water emulsion and its preparing method Download PDFInfo
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- CN1943339A CN1943339A CNA2006101020099A CN200610102009A CN1943339A CN 1943339 A CN1943339 A CN 1943339A CN A2006101020099 A CNA2006101020099 A CN A2006101020099A CN 200610102009 A CN200610102009 A CN 200610102009A CN 1943339 A CN1943339 A CN 1943339A
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Abstract
The invention discloses an pesticide water emulsion, of which the components comprises polymer carrier 5%-30%, base oil or base drug (soluble in organic solvent) 0.5%-50%, penetrating agent 0%-5%, pH regulator 1%-8%, and water. Preparation of the water emulsion comprises: (1) dispersing the polymer carrier in a container with water; (2) adding liquid base oil or base drug solved in solvent into the container; (3) stirring the base oil or base drug with the ratio of 50-2500 turn per minute; (4) adding penetrating agent and pH regulator to base oil so as to obtain the invented product. Its advantages are high stability, high effect, and simple preparing process.
Description
Technical field
The present invention relates to a kind of pesticide emulsion in water and preparation method thereof, belong to the preparation technique of pesticide field.
Background technology
In pesticidal preparations, solvent-borne type preparation missible oil (EC) proportion reaches 40%, and water base chemical preparation aqueous emulsion (EW) proportion less than 1%, because of hazardous solvent such as toluene, the dimethylbenzene etc. that use emulsifiable concentrate pesticide to render in the natural environment domestic every year reach more than 500,000 tons year economic loss multi-billion dollar.These organic solvents not only expend Limited resources on the earth, but also therefore serious environment pollution is developed water baseization formulation and be imminent.Country puts into effect relevant policies and encourages good, the easy to use water base chemical preparation of development environment compatibility, particularly aqueous emulsion to replace solvent-borne type preparation missible oil.Because the pesticide emulsion in water development difficulty is big, therefore kind and quantity are all seldom, at present, the main reason of restriction aqueous emulsion development is the special assistant that lacks function admirable, make the stability of aqueous emulsion can't well solve, developing new method for producing aqueous emulsion or New-type adjuvant becomes developing water emulsion problem demanding prompt solution always.
Summary of the invention
The object of the present invention is to provide a kind of pesticide emulsion in water.
The present invention also aims to provide a kind of preparation method of pesticide emulsion in water.
The objective of the invention is to realize based on following design.Replace the surfactant in the conventional method for producing aqueous emulsion to prepare pesticide emulsion in water with polymer support, the former medicine of solid that in the polymer support aqueous dispersions, adds former medicine of liquid or dissolution with solvents, carry out normal speed or emulsify at a high speed and disperse, add bleeding agent, pH regulator agent etc. then and promptly can be made into pesticide emulsion in water.
Particularly, the composition of pesticide emulsion in water of the present invention is expressed as follows with mass percent:
Polymer support 5%～30%
Crude oil or former medicine (dissolution with solvents) 0.5%～50%
Bleeding agent 0%～5%
PH regulator agent 1%～8%
The deionized water surplus
Wherein, said polymer support is a copolymer, can be following wherein a kind of: copolymer in cinnamic acrylic ester, acrylate copolymer, organic silicon modified propenoic ester copolymer, Organic fluoride modified acrylic ester copolymer, vinyl acetate-acrylate copolymer.Comprise acrylic acid, butene dioic acid, methacrylic acid, acrylonitrile, N-vinyl pyrrolidone, N hydroxymethyl acrylamide, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethyl hexyl acrylate, dodecyl acrylate, Process Conditions of Cetane Acrylate, octadecyl acrylate, methyl methacrylate, butyl methacrylate, metering system dodecyl gallate, octadecyl methacrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate etc. and form polymer for monomer.The structure of copolymer can be common, nucleocapsid or inierpeneirating network structure, molecular weight 3000-30000.
Suitable crude oil or solid-state former medicine be stable and any kind that fusing point suits in water.Generally should have following feature: 1, active (or active ingredient) is that liquid state or fusing point are lower at normal temperatures, generally is lower than 60 ℃, and this is not absolute certainly; 2, active component solvability in water is little, and solvability should be less than 200mg/L in the general water at normal temperature; 3, active component has chemical stability, in water, do not decompose, certainly, the requirement that this neither be absolute.
Crude oil or former medicine can be following wherein a kind of, and they are: suitable kind in insecticide, bactericide, weed killer herbicide, the plant growth regulator;
The bleeding agent that is fit to is aliphatic alcohol sulfate, alkene sulfonate, benzene sulfonamide acid metal salt, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether etc., wherein a kind of.
The pH regulator agent that is fit to can select following one of them, they are: sodium hydrogen phosphate, sodium dihydrogen phosphate, sodium hydroxide, potassium hydroxide, ammoniacal liquor etc.
The preparation method of pesticide emulsion in water of the present invention comprises the steps:
(1) polymer support is scattered in the container that water is housed;
(2) liquid crude or the solid-state former medicine that is dissolved in the solvent are joined in the top container;
(3) under 50-2500 rev/min mixing speed, disperse crude oil or former medicine;
(4) adding bleeding agent and pH regulator agent can make aqueous emulsion in scattered former medicine.
The present invention compares obtained technological progress and is with conventional art: proposed the novel concept of preparation pesticide emulsion in water, promptly utilized polymer support to be prepared.Compare with the traditional preparation process method that the pesticide emulsion in water that utilizes the polymer support preparation has good stability, suitable former powder is wide, preparation technology simple, the characteristics of economical and efficient.Because polymer support can disperse pesticide original medicine emulsification, and forms a spatial network system, is different from conventional preparation method fully, make the pesticide emulsion in water of preparation have high stability.
Embodiment
Following examples are used to illustrate the present invention.
Embodiment 1
0.5% methylamino avermectin aqueous emulsion, it consists of:
5 parts in polystyrene/acrylic acid/butyl acrylate polymer support
0.5 part in the former powder of methylamino avermectin (amount behind the folding hundred)
6 parts of dimethylbenzene
0.51 part of sodium hydrogen phosphate
Deionized water adds to 100 parts
Preparation method: earlier polymer support is disperseed in water by formula ratio, to dissolve good methylamino avermectin then in dimethylbenzene joins in the aqueous polymer dispersion, emulsification is 10 minutes under 100 rev/mins rotating speed, adds 0.51 part of sodium hydrogen phosphate and gets final product.
Embodiment 2
40% Acetochlor aqueous emulsion, it consists of:
15 parts in acrylic acid/butyl acrylate polymer support
40 parts of acetochlor oils (amount behind the folding hundred)
2 parts of lauryl sodium sulfate
Deionized water adds to 100 parts
The preparation method:
Earlier polymer support is disperseed in water by formula ratio, then Acetochlor is joined in the aqueous polymer dispersion, emulsification is 10 minutes under 1500 rev/mins rotating speed, adds 2 parts of lauryl sodium sulfate and gets final product.
Embodiment 3
4.5% high performance aqueous emulsion of cypermethrin, it consists of:
8 parts of acrylonitrile/methyl acrylate/butyl acrylates/acrylate copolymer carrier
4.5 parts of beta-cypermethrins (amount behind the folding hundred)
10 parts of dimethylbenzene
1 part of ammoniacal liquor
Water adds to 100 parts
The preparation method:
Earlier polymer support is disperseed in water by formula ratio, will dissolve good beta-cypermethrin then and join in the aqueous polymer dispersion in dimethylbenzene, emulsification is 10 minutes under 1500 rev/mins rotating speed, adds ammoniacal liquor and gets final product.
Claims (3)
1, a kind of pesticide emulsion in water is characterized in that: composition is expressed as follows by mass percent:
Polymer support 5%～30%
Crude oil or former medicine 0.5%～50%
Bleeding agent 0%～5%
PH regulator agent 1%～8%
The deionized water surplus
Wherein, said polymer support is an acrylate copolymer, can be following wherein a kind of: copolymer in cinnamic acrylic ester, acrylate copolymer, organic silicon modified propenoic ester copolymer, Organic fluoride modified acrylic ester copolymer, vinyl acetate-acrylate copolymer;
Crude oil or former medicine can be following wherein a kind of, and they are: suitable kind in insecticide, bactericide, weed killer herbicide, the plant growth regulator;
Said bleeding agent is aliphatic alcohol sulfate, alkene sulfonate, benzene sulfonamide acid metal salt, fatty alcohol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, wherein a kind of;
The pH regulator agent be following one of them, they are: sodium hydrogen phosphate, sodium dihydrogen phosphate, sodium hydroxide, potassium hydroxide, ammoniacal liquor.
2, by the described pesticide emulsion in water of claim 1, it is characterized in that: said polymer support is that to comprise acrylic acid, butene dioic acid, methacrylic acid, acrylonitrile, N-vinyl pyrrolidone, N hydroxymethyl acrylamide, methyl acrylate, ethyl acrylate, butyl acrylate, 2-ethyl hexyl acrylate, dodecyl acrylate, Process Conditions of Cetane Acrylate, octadecyl acrylate, methyl methacrylate, butyl methacrylate, metering system dodecyl gallate, octadecyl methacrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate be the polymer that monomer forms.
3, the preparation method of pesticide emulsion in water as claimed in claim 1 or 2 is characterized in that: comprise the steps:
(1) polymer support is scattered in the container that water is housed;
(2) liquid crude or the solid-state former medicine that is dissolved in the solvent are joined in the top container;
(3) under 50-2500 rev/min mixing speed, disperse crude oil or former medicine;
(4) adding bleeding agent and pH regulator agent can make pesticide emulsion in water in scattered former medicine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101020099A CN1943339A (en) | 2006-10-13 | 2006-10-13 | Pesticide water emulsion and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101020099A CN1943339A (en) | 2006-10-13 | 2006-10-13 | Pesticide water emulsion and its preparing method |
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| Publication Number | Publication Date |
|---|---|
| CN1943339A true CN1943339A (en) | 2007-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006101020099A Pending CN1943339A (en) | 2006-10-13 | 2006-10-13 | Pesticide water emulsion and its preparing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204531A (en) * | 2011-04-07 | 2011-10-05 | 中国地质大学（武汉） | Triazophos emulsion in water without organic solvent and preparation method thereof |
| CN102210298A (en) * | 2011-04-07 | 2011-10-12 | 中国地质大学（武汉） | Dursban water emulsion without organic solvent and preparation method thereof |
| CN102301996A (en) * | 2011-09-20 | 2012-01-04 | 汕头市大千高新科技研究中心有限公司 | Water emulsion pesticide system and preparation method thereof |
| CN104396983A (en) * | 2014-09-25 | 2015-03-11 | 沈阳农业大学 | Low temperature resistant protective film agent for fruit tree and preparation method thereof |
| CN110326621A (en) * | 2019-08-15 | 2019-10-15 | 山西农业大学 | Metamifop aqueous emulsion and its preparation method and application |
| CN110402923A (en) * | 2019-08-16 | 2019-11-05 | 山西农业大学 | Pinoxaden aqueous emulsion and its preparation method and application |
| CN110583635A (en) * | 2019-10-10 | 2019-12-20 | 山西农业大学 | Paclobutrazol aqueous emulsion and preparation method and application thereof |
-
2006
- 2006-10-13 CN CNA2006101020099A patent/CN1943339A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204531A (en) * | 2011-04-07 | 2011-10-05 | 中国地质大学（武汉） | Triazophos emulsion in water without organic solvent and preparation method thereof |
| CN102210298A (en) * | 2011-04-07 | 2011-10-12 | 中国地质大学（武汉） | Dursban water emulsion without organic solvent and preparation method thereof |
| CN102210298B (en) * | 2011-04-07 | 2014-08-06 | 中国地质大学（武汉） | Dursban water emulsion without organic solvent and preparation method thereof |
| CN102301996A (en) * | 2011-09-20 | 2012-01-04 | 汕头市大千高新科技研究中心有限公司 | Water emulsion pesticide system and preparation method thereof |
| CN102301996B (en) * | 2011-09-20 | 2013-08-07 | 汕头市大千高新科技研究中心有限公司 | Water emulsion pesticide system and preparation method thereof |
| CN104396983A (en) * | 2014-09-25 | 2015-03-11 | 沈阳农业大学 | Low temperature resistant protective film agent for fruit tree and preparation method thereof |
| CN104396983B (en) * | 2014-09-25 | 2016-07-06 | 沈阳农业大学 | The one low temperature resistant protection membrane of planting fruit-trees and preparation method |
| CN110326621A (en) * | 2019-08-15 | 2019-10-15 | 山西农业大学 | Metamifop aqueous emulsion and its preparation method and application |
| CN110402923A (en) * | 2019-08-16 | 2019-11-05 | 山西农业大学 | Pinoxaden aqueous emulsion and its preparation method and application |
| CN110583635A (en) * | 2019-10-10 | 2019-12-20 | 山西农业大学 | Paclobutrazol aqueous emulsion and preparation method and application thereof |
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