CN105454228A - Biodegradable cyhalofop-butyl EW (Emulsion in Water) and preparation method thereof - Google Patents
Biodegradable cyhalofop-butyl EW (Emulsion in Water) and preparation method thereof Download PDFInfo
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- CN105454228A CN105454228A CN201511003433.3A CN201511003433A CN105454228A CN 105454228 A CN105454228 A CN 105454228A CN 201511003433 A CN201511003433 A CN 201511003433A CN 105454228 A CN105454228 A CN 105454228A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
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- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a biodegradable cyhalofop-butyl EW (Emulsion in Water) and a preparation method thereof and relates to a cyhalofop-butyl EW and a preparation method thereof, so as to solve the technical problems that existing cyhalofop-butyl EW causes serious environmental pollution and has safety hidden dangers on aquatic organism. The biodegradable cyhalofop-butyl EW comprises cyhalofop-butyl, biodiesel, alkyl glycoside, benzyl starch ether, alpha-sulpho fatty acid methyl ester and deionized water. The preparation method comprises the following steps: dissolving cyhalofop-butyl with biodiesel, adding a mixed emulsifier of alkyl glycoside, benzyl starch ether and alpha-sulpho fatty acid methyl ester, stirring uniformly, and shearing and stirring by use of a highly shearing emulsification machine; and finally adding deionized water, and stirring uniformly, thereby obtaining the biodegradable cyhalofop-butyl EW. The EW can be used for removing grassy weeds.
Description
Technical field
The present invention relates to aqueous cyhalofop-butyl emulsion and preparation method thereof.
Background technology
Cyhalofop-butyl (cyhalofop-butyl) is mainly used in preventing and kill off important grassy weed.Cyhalofop-butyl is efficient to moleplant seed, have certain preventive effect to low age barnyard grass, also can prevent and kill off, lady's-grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail etc.Cyhalofop-butyl weed killer herbicide has efficiently, low toxicity, to the succession crop feature such as safely.Therefore, it occupies critical role in world's herbicide market.
The preparation of existing aqueous cyhalofop-butyl emulsion adopts a large amount of organic solvents and surfactant usually, if application number is the Chinese patent of CN200910099141.2, aqueous cyhalofop-butyl emulsion, it comprises cyhalofop-butyl, surfactant, organic base, antifreeze, organic solvent, thickener, defoamer and water, wherein the aromatic hydrocarbons organic solvent content such as dimethylbenzene is up to 20 ~ 35%, and the large usage quantity of the surfactant such as alkylphenol polyoxyethylene (APEO), there is serious environmental pollution, therefore, urgently find the good biodegradable alternative cosolvent of Environmental compatibility.
Summary of the invention
The present invention will solve the serious technical problem of existing aqueous cyhalofop-butyl emulsion environmental pollution, and provides a kind of biodegradable aqueous cyhalofop-butyl emulsion and preparation method thereof.
Biodegradable aqueous cyhalofop-butyl emulsion of the present invention by mass percentage by 10% cyhalofop-butyl, 18% ~ 22% biodiesel, 9% ~ 12% alkyl glycoside, the benzyl starch ether of 6% ~ 8%, the alpha-sulfo fatty acid methyl ester sodium of 3% ~ 8% and surplus deionized water form.
The preparation method of above-mentioned biodegradable aqueous cyhalofop-butyl emulsion carries out according to the following steps:
One, take raw material, its Raw comprise by mass percentage 10% cyhalofop-butyl, 18% ~ 22% biodiesel, 9% ~ 12% alkyl glycoside, the benzyl starch ether of 6% ~ 8%, the alpha-sulfo fatty acid methyl ester sodium of 3% ~ 8% and surplus deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in container, again biodiesel is joined in container, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation with high-shear emulsifying dispersion machine with the rotating speed of 6000 ~ 7000r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Alkyl glycoside (APG), benzyl starch ether, alpha-sulfo fatty acid methyl ester sodium and biodiesel synergistic application that the raw material that the present invention adopts is green, gentle, nontoxic, the biodegradable aqueous cyhalofop-butyl emulsion good stability obtained, there is good interface performance and excellent biodegradability, aqueous emulsion stable system, long shelf-life, and drop sprawl with permeance property good, easily degraded improves the drug effect of agricultural chemicals; Present invention uses nontoxic non-stimulated, that Environmental compatibility is good alkyl glycoside, alpha-sulfo fatty acid methyl ester sodium and benzyl starch ether simultaneously and substitute conventional petrochemical emulsifier as emulsifier and thickener, be that solvent substitutes conventional organic solvents (dimethylbenzene etc.) with biodiesel, raw material is easy to get, environmental protection, non-secondary pollution, not only reduce cost of material, and avoid organic solvent to the waste of the murder by poisoning of operating personnel and a large amount of organic solvent and the pollution to environment and water body, achieve biological degradation.
Embodiment
Embodiment one: the biodegradable aqueous cyhalofop-butyl emulsion of present embodiment by mass percentage by 10% cyhalofop-butyl, 18% ~ 22% biodiesel, 9% ~ 12% alkyl glycoside, the benzyl starch ether of 6% ~ 8%, the alpha-sulfo fatty acid methyl ester sodium of 3% ~ 8% and surplus deionized water form.
Embodiment two: the biodegradable aqueous cyhalofop-butyl emulsion of present embodiment by mass percentage by 10% cyhalofop-butyl, 20% biodiesel, 10% alkyl glycoside, the benzyl starch ether of 7%, the alpha-sulfo fatty acid methyl ester sodium of 5% and surplus deionized water form.
Embodiment three: the preparation method of the biodegradable aqueous cyhalofop-butyl emulsion described in embodiment one carries out according to the following steps:
One, take raw material, its Raw comprise by mass percentage 10% cyhalofop-butyl, 18% ~ 22% biodiesel, 9% ~ 12% alkyl glycoside, the benzyl starch ether of 6% ~ 8%, the alpha-sulfo fatty acid methyl ester sodium of 3% ~ 8% and surplus deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in container, again biodiesel is joined in container, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation with high-shear emulsifying dispersion machine with the rotating speed of 6000 ~ 7000r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Embodiment four: present embodiment and embodiment three unlike: raw material comprise by mass percentage 10% cyhalofop-butyl, 20% biodiesel, 10% alkyl glycoside, the benzyl starch ether of 7%, the alpha-sulfo fatty acid methyl ester sodium of 4% and surplus deionized water.Other is identical with embodiment three.
Embodiment five: present embodiment and embodiment three or four are unlike step 2 medium speed 6500r/min.Other is identical with embodiment three or four.
Beneficial effect is had with following verification experimental verification is of the present invention:
Embodiment one:
The biodegradable aqueous cyhalofop-butyl emulsion of the present embodiment is made up of 1.0g cyhalofop-butyl, 2.0mL biodiesel, 1.2mL alkyl glycoside, 0.8g benzyl starch ether, 0.4g alpha-sulfo fatty acid methyl ester sodium and 5.0mL deionized water.
Its preparation method is as follows:
One, take raw material, its Raw is 1.0g cyhalofop-butyl, 2.0mL biodiesel, 1.2mL alkyl glycoside, 0.8g benzyl starch ether, 0.4g alpha-sulfo fatty acid methyl ester sodium and 5.0mL deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in conical flask, again biodiesel is joined in conical flask, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation 35min with high-shear emulsifying dispersion machine with the rotating speed of 6000r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Biodegradable aqueous cyhalofop-butyl emulsion physicochemical property prepared by the present embodiment is stablized, and reach the requirement of national pesticidal emulsion stability criterion, the technical indicator testing result of aqueous cyhalofop-butyl emulsion is as shown in table 1.
Biodegradable aqueous cyhalofop-butyl emulsion prepared by the present embodiment dilutes 1 times, 10 times, 100 times by deionized water respectively, and the aqueous emulsion obtained is the even phase system of stable milky.
Embodiment two:
The biodegradable aqueous cyhalofop-butyl emulsion of the present embodiment is by 1.0g cyhalofop-butyl; 2.2mL biodiesel; 1.0mL alkyl glycoside; 0.7g benzyl starch ether; 0.5g alpha-sulfo fatty acid methyl ester sodium 5.1mL deionized water forms.
Its preparation method is as follows:
One, take raw material, its Raw is 1.0g cyhalofop-butyl; 2.2mL biodiesel; 1.0mL alkyl glycoside; 0.7g benzyl starch ether, 0.5g alpha-sulfo fatty acid methyl ester sodium and 5.1mL deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in conical flask, again biodiesel is joined in conical flask, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation 32min with high-shear emulsifying dispersion machine with the rotating speed of 6200r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Biodegradable aqueous cyhalofop-butyl emulsion physicochemical property prepared by the present embodiment is stablized, and reach the requirement of national pesticidal emulsion stability criterion, the technical indicator testing result of aqueous cyhalofop-butyl emulsion is as shown in table 1.
Biodegradable aqueous cyhalofop-butyl emulsion prepared by the present embodiment dilutes 1 times, 10 times, 100 times by deionized water respectively, and the aqueous emulsion obtained is the even phase system of stable milky.
Embodiment three:
The biodegradable aqueous cyhalofop-butyl emulsion of the present embodiment is by 1.0g cyhalofop-butyl; 1.8mL biodiesel; 1.2mL alkyl glycoside; 0.8g benzyl starch ether; 0.6g alpha-sulfo fatty acid methyl ester sodium and 5.2mL deionized water composition.
Its preparation method is as follows:
One, take raw material, its Raw is 1.0g cyhalofop-butyl; 1.8mL biodiesel; 1.2mL alkyl glycoside; 0.8g benzyl starch ether; 0.6g alpha-sulfo fatty acid methyl ester sodium and 5.2mL deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in conical flask, again biodiesel is joined in conical flask, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation 30min with high-shear emulsifying dispersion machine with the rotating speed of 6400r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Biodegradable aqueous cyhalofop-butyl emulsion physicochemical property prepared by the present embodiment is stablized, and reach the requirement of national pesticidal emulsion stability criterion, the technical indicator testing result of aqueous cyhalofop-butyl emulsion is as shown in table 1.
Biodegradable aqueous cyhalofop-butyl emulsion prepared by the present embodiment dilutes 1 times, 10 times, 100 times by deionized water respectively, and the aqueous emulsion obtained is the even phase system of stable milky.
Embodiment four:
The biodegradable aqueous cyhalofop-butyl emulsion of the present embodiment is by 1.0g cyhalofop-butyl, 2.0mL biodiesel, 1.0mL alkyl glycoside, 0.7g benzyl starch ether; 0.8g alpha-sulfo fatty acid methyl ester sodium and 5.3mL deionized water composition.
Its preparation method is as follows:
One, take raw material, its Raw is 1.0g cyhalofop-butyl, 2.0mL biodiesel, 1.0mL alkyl glycoside, 0.7g benzyl starch ether; 0.8g alpha-sulfo fatty acid methyl ester sodium and 5.3mL deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in conical flask, again biodiesel is joined in conical flask, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation 28min with high-shear emulsifying dispersion machine with the rotating speed of 6600r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Biodegradable aqueous cyhalofop-butyl emulsion physicochemical property prepared by the present embodiment is stablized, and reach the requirement of national pesticidal emulsion stability criterion, the technical indicator testing result of aqueous cyhalofop-butyl emulsion is as shown in table 1
Biodegradable aqueous cyhalofop-butyl emulsion prepared by the present embodiment dilutes 1 times, 10 times, 100 times by deionized water respectively, and the aqueous emulsion obtained is the even phase system of stable milky.
Embodiment five:
The biodegradable aqueous cyhalofop-butyl emulsion of the present embodiment is by 1.0g cyhalofop-butyl, 1.9mL biodiesel, 0.9mL alkyl glycoside, 0.6g benzyl starch ether; 0.7g alpha-sulfo fatty acid methyl ester sodium and 5.4mL deionized water composition.
Its preparation method is as follows:
One, take raw material, its Raw is 1.0g cyhalofop-butyl, 1.9mL biodiesel, 0.9mL alkyl glycoside, 0.6g benzyl starch ether; 0.7g alpha-sulfo fatty acid methyl ester sodium and 5.4mL deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in conical flask, again biodiesel is joined in conical flask, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation 26min with high-shear emulsifying dispersion machine with the rotating speed of 6800r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Biodegradable aqueous cyhalofop-butyl emulsion physicochemical property prepared by the present embodiment is stablized, and reach the requirement of national pesticidal emulsion stability criterion, the technical indicator testing result of aqueous cyhalofop-butyl emulsion is as shown in table 1.
Biodegradable aqueous cyhalofop-butyl emulsion prepared by the present embodiment dilutes 1 times, 10 times, 100 times by deionized water respectively, and the aqueous emulsion obtained is the even phase system of stable milky.
Embodiment six:
The biodegradable aqueous cyhalofop-butyl emulsion of the present embodiment is by 1.0g cyhalofop-butyl, 2.2mL biodiesel, 1.2mL alkyl glycoside, 0.8g benzyl starch ether; 0.4g alpha-sulfo fatty acid methyl ester sodium and 4.8mL deionized water composition.
Its preparation method is as follows:
One, take raw material, its Raw is 1.0g cyhalofop-butyl, 2.2mL biodiesel, 1.2mL alkyl glycoside, 0.8g benzyl starch ether; 0.4g alpha-sulfo fatty acid methyl ester sodium and 4.8mL deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in conical flask, again biodiesel is joined in conical flask, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation 30min with high-shear emulsifying dispersion machine with the rotating speed of 7000r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
Biodegradable aqueous cyhalofop-butyl emulsion physicochemical property prepared by the present embodiment is stablized, and reach the requirement of national pesticidal emulsion stability criterion, the technical indicator testing result of aqueous cyhalofop-butyl emulsion is as shown in table 1.
Biodegradable aqueous cyhalofop-butyl emulsion prepared by the present embodiment dilutes 1 times, 10 times, 100 times by deionized water respectively, and the aqueous emulsion obtained is the even phase system of stable milky.
The technical indicator of the biodegradable aqueous cyhalofop-butyl emulsion of table 1
In upper table, the assay method of each index is: the emulsion stability of biodegradable aqueous cyhalofop-butyl emulsion, measures according to CIPACMT36 (342ppm standard hard water dilute 20 times qualified) and GB/T1603-2001 pesticidal emulsion 4stability determination (342ppm standard hard water dilute 200 times qualified); It is undertaken by the assay method of GB/T1601-1993 agricultural chemicals pH value that the pH value of biodegradable aqueous cyhalofop-butyl emulsion measures; The low-temperature stability of biodegradable aqueous cyhalofop-butyl emulsion measures and is undertaken by GB/T19137-2003 agricultural chemicals low-temperature stability assay method; The heat storage stability of biodegradable aqueous cyhalofop-butyl emulsion measures and is undertaken by GB/T19136-2003 agricultural chemicals heat storage stability assay method; The dilution stability of biodegradable aqueous cyhalofop-butyl emulsion measures and carries out according to CIPACF volume MT20 agricultural chemicals dilution stability assay method; The thermoplastic polymer of biodegradable aqueous cyhalofop-butyl emulsion is rolled up MT160 agricultural chemicals thermoplastic polymer assay method by CIPACF and is carried out; The persistent foamability of biodegradable aqueous cyhalofop-butyl emulsion is rolled up MT31 agricultural chemicals persistent foamability assay method by CIPACF and is carried out.
All qualified through measuring These parameters.
Biodegradable aqueous cyhalofop-butyl emulsion prepared by embodiment 1 ~ 6 is used for the preventive effect data of water prevention direct sowing of rice Tanaka weed moleplant seed in table 2.
Table 2 preventive effect data
Biodegradable aqueous cyhalofop-butyl emulsion prepared by embodiment 1 ~ 6 is the weed killer herbicide that high, nontoxic non-stimulated, the cosolvent of a kind of safety can be degradable.Because decrease the consumption of organic solvent, prepare emulsion by biodiesel, alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium and deionized water, greatly reduce the addition of organic solvent compared with missible oil, thus improve the safety of transport; Wherein whole help, solvent all has good biodegradability, substantially increase in product use procedure environmental protection, Green performance; Each component synergy, makes liquid improve spreadability and permeability, thus improves drug effect simultaneously.
Shown by field experiment result: biodegradable aqueous cyhalofop-butyl emulsion prepared by embodiment 1 ~ 6 is under the prerequisite of lower effective ingredient consumption, preventive effect and traditional aqueous cyhalofop-butyl emulsion and cyhalofop-butyl missible oil product close, traditional cyhalofop-butyl pharmaceutical products can be substituted completely, in formula, auxiliary agent is with low cost is simultaneously easy to get, green environmental protection degradable, green and its usage economy all have lifting, have larger market prospects and economic efficient latent.
Claims (5)
1. a biodegradable aqueous cyhalofop-butyl emulsion, it is characterized in that this aqueous emulsion by mass percentage by 10% cyhalofop-butyl, 18% ~ 22% biodiesel, 9% ~ 12% alkyl glycoside, the benzyl starch ether of 6% ~ 8%, the alpha-sulfo fatty acid methyl ester sodium of 3% ~ 8% and surplus deionized water form.
2. the biodegradable aqueous cyhalofop-butyl emulsion of one according to claim 1, it is characterized in that this aqueous emulsion by mass percentage by 10% cyhalofop-butyl, 20% biodiesel, 10% alkyl glycoside, the benzyl starch ether of 7%, the alpha-sulfo fatty acid methyl ester sodium of 5% and surplus deionized water form.
3. prepare the method for a kind of biodegradable aqueous cyhalofop-butyl emulsion according to claim 1, it is characterized in that the method is carried out according to the following steps:
One, take raw material, its Raw comprise by mass percentage 10% cyhalofop-butyl, 18% ~ 22% biodiesel, 9% ~ 12% alkyl glycoside, the benzyl starch ether of 6% ~ 8%, the alpha-sulfo fatty acid methyl ester sodium of 3% ~ 8% and surplus deionized water;
Two, first alkyl glycoside, benzyl starch ether and alpha-sulfo fatty acid methyl ester sodium are mixed, obtain blended emulsifier; Cyhalofop-butyl is joined in container, again biodiesel is joined in container, stirring and dissolving, after cyhalofop-butyl all dissolves, add blended emulsifier, stir, then add deionized water, then carry out shear agitation with high-shear emulsifying dispersion machine with the rotating speed of 6000 ~ 7000r/min, obtain biodegradable aqueous cyhalofop-butyl emulsion.
4. the preparation method of a kind of biodegradable aqueous cyhalofop-butyl emulsion according to claim 3, it is characterized in that step one Raw comprise by mass percentage 10% cyhalofop-butyl, 20% biodiesel, 10% alkyl glycoside, the benzyl starch ether of 7%, the alpha-sulfo fatty acid methyl ester sodium of 4% and surplus deionized water.
5. the preparation method of a kind of biodegradable aqueous cyhalofop-butyl emulsion according to claim 3, is characterized in that step 2 medium speed 6500r/min.
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Application publication date: 20160406 |