CN108575993A - A kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium and preparation method thereof - Google Patents
A kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium and preparation method thereof Download PDFInfo
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- CN108575993A CN108575993A CN201810352070.1A CN201810352070A CN108575993A CN 108575993 A CN108575993 A CN 108575993A CN 201810352070 A CN201810352070 A CN 201810352070A CN 108575993 A CN108575993 A CN 108575993A
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- oil
- glufosinate
- ammonium
- suspending agent
- capsule
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Classifications
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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
-
- 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
- A01N25/26—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 in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
-
- 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
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
Abstract
The present invention relates to pesticide production technology fields, specifically disclose a kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium and preparation method thereof.The dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, includes the component of following mass fraction：Glufosinate-ammonium 1%~30%；Aqueous monomers 0.2% 0.8%；Oiliness monomer 0.8% 7.2%；Water 10%~30%；Emulsifier 1%~6%；Emulsifying dispersant 1%~6%；Thickener 2%~8%；Surplus is oil-based solvent, wherein the oiliness monomer is used to form the cyst material of package active constituent glufosinate-ammonium with aqueous monomers.The dispersible micro-capsule oil-suspending agent of glufosinate-ammonium provided by the invention, the advantage of microcapsule formulation and dispersible oil-suspending agent is combined, the microencapsulation of glufosinate-ammonium is realized by antiphase boundaries polymerization by cyst material, it solves active ingredient to be easy to be lost in, the problem of leading to package failure, and there is the longer lasting period.
Description
Technical field
The present invention relates to pesticide production technology field more particularly to a kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium and its systems
Preparation Method.
Background technology
Glufosinate-ammonium belongs to phosphorus acid herbicides, using glutamine synthelase as target enzymes.Glutamine synthelase is plant
A kind of important detoxication enzyme during nitrogen metabolism can be released by being released in nitrate reduction, amino acid degradation and light respiration
The toxicity of ammonium.Glutamine synthelase can directly be reacted with glufosinate-ammonium in ATP presences；After PPT processing, PPT is first
It is combined with ATP, the PPT of phosphorylation occupies 8 reaction centers of glutamine synthelase, to inhibit glutamine to synthesize
The activity of enzyme causes nitrogen metabolism in plant disorderly, and ammonia excess accumulation causes chloroplaset to disintegrate, and destroys photosynthesis, finally kills
Dead plant.
Conduction transfer of the glufosinate-ammonium in plant is poor.Mode that there are mainly two types of conduction of the glufosinate-ammonium in plant,
First, being conducted upwards with transpiration current by xylem, second is that being conducted to root by bast.Wherein, weeds are to the quick of glufosinate-ammonium
Sense degree and the conductivity of bast have substantial connection.Because the conduction of glufosinate-ammonium is poor, the drug effect lasting period receives influence significantly.
If it is micro-capsule class preparation that can develop glufosinate-ammonium, the lasting period can be obviously prolonged, and then reach raising drug effect, compared with
The purpose of small Pesticide use zero meets the requirement of national pesticide zero growth rate.But there is not glufosinate-ammonium micro-capsule class preparation at present
Report, because glufosinate-ammonium is water-soluble big, oil-soluble is small, is not suitable for conventional micro capsule method.Conventional pesticide micro-capsule or pesticide microballoon
Formulation process is required to active ingredient dissolving in a solvent, but glufosinate-ammonium oil-soluble is poor, it is difficult to which searching obtains suitable
Solvent dissolves；Meanwhile microencapsulation carries out usually in aqueous medium, and because glufosinate-ammonium is water-soluble greatly, big portion in preparation process
Point active ingredient will cause packing to fail from being lost in water phase in oil phase.
Invention content
Short for the drug effect lasting period of existing glufosinate-ammonium preparation, active ingredient is easy stream when prepared by glufosinate-ammonium micro-capsule class preparation
It loses, package failure, a kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium of present invention offer and preparation method thereof is provided.
To achieve the above object of the invention, the embodiment of the present invention uses the following technical solution：
A kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, includes the raw material components of following mass fraction：
Glufosinate-ammonium 1%~30%；
Aqueous monomers 0.2%-0.8%；
Oiliness monomer 0.8%-7.2%；
Water 10%~30%；
Emulsifier 1%~6%；
Emulsifying dispersant 1%~6%；
Thickener 2%~8%；
Surplus is oil-based solvent,
Wherein, the oiliness monomer is used to form the cyst material of package active constituent glufosinate-ammonium with aqueous monomers.
Compared with the existing technology, the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium provided by the invention, by microcapsule formulation with can divide
The advantage for dissipating oil-suspending agent combines, and realizes the microencapsulation of glufosinate-ammonium by antiphase boundaries polymerization by cyst material,
Solves the problem of active ingredient is easy to be lost in, leads to package failure, and since the control of micro-capsule release makes glufosinate-ammonium be provided with
Slow-release capability has the longer lasting period in turn；The glufosinate-ammonium of microencapsulation directly forms grass with emulsifying dispersant, thickener auxiliary material again
The dispersible micro-capsule oil-suspending agent of ammonium phosphine, while there is preferable quick-acting, open one for the microencapsulation of highly-water-soluble pesticide
New direction.
Further, the present invention also provides the preparation methods of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium.The preparation side
Method includes the following steps：
(1) each component is weighed according to the raw material proportioning of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium；
(2) glufosinate-ammonium, aqueous monomers and water are subjected to mixing treatment, drug containing water phase mixed liquor are obtained, by the oil
Phase monomer, emulsifier and oil-based solvent carry out mixing treatment, obtain oil phase mixed liquor；
(3) the drug containing water phase mixed liquor, oil phase mixed liquor are mixed, emulsification treatment is carried out in high speed disperser, is obtained
To water-in-oil emulsion；
(4) the water-in-oil emulsion temperature is adjusted to 25~30 DEG C, carries out first time stir process, it is warming up to 45~
70 DEG C, after carrying out second of stir process, mixing treatment is carried out with emulsifying dispersant, thickener, it is dispersible micro- to obtain glufosinate-ammonium
Capsule oil-suspending agent.
Compared with the existing technology, the preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium provided by the invention, technique letter
Single, easy to operate, safety and environmental protection is of low cost.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The embodiment of the present invention provides a kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium.The dispersible micro-capsule oil of the glufosinate-ammonium suspends
Agent includes the raw material components of following mass fraction：
Glufosinate-ammonium 1%~30%；
Aqueous monomers 0.2%-0.8%；
Oiliness monomer 0.8%-7.2%；
Water 10%~30%；
Emulsifier 1%~6%；
Emulsifying dispersant 1%~6%；
Thickener 2%~8%；
Surplus is oil-based solvent,
Wherein, the oiliness monomer is used to form the cyst material of package active constituent glufosinate-ammonium with aqueous monomers.
Preferably, the oiliness monomer is that methyl methacrylate, polyphenyl polymethylene polyisocyanates, toluene two are different
One kind in cyanate；The aqueous monomers are potassium peroxydisulfate, ethylenediamine, butanediamine, hexamethylene diamine, cyclohexanediamine or isophorone
One kind in diamines polymerize to obtain cyst material by antiphase boundaries, wrap up glufosinate-ammonium, solves active ingredient and is easy
The problem of being lost in, leading to package failure, and since the control of micro-capsule release makes glufosinate-ammonium be provided with slow-release capability and then has longer
Lasting period.
Preferably, the emulsifier is fatty alcohol polyoxyethylene ether, Span, polyoxyethylene sorbitan
One or more of laurate, castor oil polyoxyethylene ether, phenethyl phenol polyoxyethylene poly-oxygen propylene aether improve each group
/ surface tension, so that glufosinate-ammonium, aqueous monomers and oiliness monomer is formed water-in-oil emulsion.
Preferably, the emulsifying dispersant is alkyl phenol polyoxyethylene ether phosphate, phenethyl phenol polyoxyethylene ether phosphorus
Acid esters, alkyl sulfate, alkylsulfonate, polycarboxylate, lignosulfonates, EO-PO block copolymers phosphate and its salt
Class, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, naphthalene sulfonate petroleum sodium sulfonate, tributyl phenol polyoxyethylene ether,
The one or more of polyvinylpyrrolidonepolymers polymers improve the dispersion performance of system.
Preferably, the thickener is one or both of gas-phase silica, organobentonite, aluminium-magnesium silicate, is improved
The viscosity and rheological property of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, enhance the stability of dispersible micro-capsule oil-suspending agent.
Preferably, the oil-based solvent is soybean oil, corn oil, peanut oil, methyl oleate, one kind in white oil or several
Kind, vegetable oil or mineral oil to more environment-friendly, and reduce production cost.
Preferably, the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium, includes the raw material components of following mass fraction：
Glufosinate-ammonium 5%~25%；
Aqueous monomers 0.2%-0.5%；
Oiliness monomer 0.8%-4.5%；
Water 15%~25%；
Emulsifier 1%~3%；
Emulsifying dispersant 4%~6%；
Thickener 2%~4%；
Surplus is oil-based solvent.
The dispersible micro-capsule oil-suspending agent of glufosinate-ammonium provided in an embodiment of the present invention, by microcapsule formulation and dispersible oil-suspending agent
Advantage combine, the microencapsulation of glufosinate-ammonium is realized by antiphase boundaries polymerization by cyst material, is solved effectively
Ingredient be easy be lost in, cause package failure the problem of, and due to the control of micro-capsule release make glufosinate-ammonium be provided with slow-release capability into
And there is the longer lasting period；It is dispersible that the glufosinate-ammonium of microencapsulation directly forms glufosinate-ammonium with emulsifying dispersant, thickener auxiliary material again
Micro-capsule oil-suspending agent, while there is preferable quick-acting, it can directly be watered spraying and use, there is notable promotional value, for height
The microencapsulation of water soluble pesticide opens a new direction.
The present invention still further provides the glufosinate-ammonium under the premise of providing the glufosinate-ammonium dispersible micro-capsule oil-suspending agent
The preparation method of dispersible micro-capsule oil-suspending agent.
In one embodiment, which includes the following steps：
(1) each component is weighed according to the raw material proportioning of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium；
(2) glufosinate-ammonium, aqueous monomers and water are subjected to mixing treatment, drug containing water phase mixed liquor are obtained, by the oil
Phase monomer, emulsifier and oil-based solvent carry out mixing treatment, obtain oil phase mixed liquor；
(3) the drug containing water phase mixed liquor, oil phase mixed liquor are mixed, emulsification treatment is carried out in high speed disperser, is obtained
To water-in-oil emulsion；
(4) the water-in-oil emulsion temperature is adjusted to 25~30 DEG C, carries out first time stir process, it is warming up to 45~
70 DEG C, after carrying out second of stir process, mixing treatment is carried out with emulsifying dispersant, thickener, it is dispersible micro- to obtain glufosinate-ammonium
Capsule oil-suspending agent.
Explanation is further explained to above-mentioned preparation method below：
Specifically, the mass ratio of the glufosinate-ammonium and water is 1:1~1:4, while so that glufosinate-ammonium is dissolved, it is convenient for follow-up capsule
The formation of wall material and package to glufosinate-ammonium.
Preferably, the shear velocity of the emulsification treatment is 2000~4000rpm, and the time is 0.5~1.0min, completes breast
Change is handled, and obtains water-in-oil emulsion.
Preferably, in step (4), the time of the first time stir process is 1-2h；The time of second of stir process
For 4-20h；The time of mixing treatment is 0.5-1h, obtains the dispersible micro-capsule oil of glufosinate-ammonium that system is uniform, performance is stablized and suspends
Agent.
This method preparation process is simple, easy to operate, and safety and environmental protection is of low cost.
In order to better illustrate dispersible micro-capsule oil-suspending agent of glufosinate-ammonium provided in an embodiment of the present invention and preparation method thereof,
It is illustrated below by embodiment is further.
Embodiment 1
A kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, includes the raw material components of following mass fraction：
Glufosinate-ammonium 5g；
Potassium peroxydisulfate 0.5g；
Deionized water 15g；
Span 1.0g；
Fatty alcohol polyoxyethylene ether 0.5g；
Methyl methacrylate 2.0g；
Alkyl phenol polyoxyethylene ether phosphate 3.0g；
Polycarboxylate 2.5g；
Gas-phase silica 1.0g；
Organobentonite 1.5g；
5# white oil 68g,
The preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium includes the following steps：
(1) each component is weighed according to the raw material proportioning of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium；
(2) glufosinate-ammonium, potassium peroxydisulfate and deionized water are subjected to mixing treatment, obtain drug containing water phase mixed liquor, it will
The 5# white oils progress mixing treatment of the methyl methacrylate, Span, fatty alcohol polyoxyethylene ether and 60g,
Obtain oil phase mixed liquor；
(3) the drug containing water phase mixed liquor, oil phase mixed liquor are mixed, is with shear velocity in high speed disperser
2000rpm carries out emulsification treatment 1.0min, obtains water-in-oil emulsion；
(4) the water-in-oil emulsion temperature is adjusted to 25 DEG C, carries out first time stir process 2h, is warming up to 65 DEG C,
After carrying out second of stir process 8h, with alkyl phenol polyoxyethylene ether phosphate, polycarboxylate, gas-phase silica, organic swelling
Soil carries out mixing treatment, is mended system to 100g with 5# white oils, stirs 0.5h, obtain the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium.
1.8 μm of preparation micro-capsule average grain diameter after testing, encystation rate 91.5%, suspensibility 98.2%, cold heat storage stability close
Lattice.
Embodiment 2
A kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, includes the raw material components of following mass fraction：
Glufosinate-ammonium 15g；
Hexamethylene diamine 0.5g；
Deionized water 25g；
Polyoxyethylene sorbitan laurate 1.0g；
Castor oil polyoxyethylene ether 0.5g；
Polyphenyl polymethylene polyisocyanates 3.5g；
Tributyl phenol polyoxyethylene ether 3.0g；
Sodium lignin sulfonate 2.5g；
Aluminium-magnesium silicate 1.5g；
Organobentonite 1.0g；
Corn oil 46.5g,
The preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium includes the following steps：
(1) each component is weighed according to the raw material proportioning of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium；
(2) glufosinate-ammonium, hexamethylene diamine and deionized water are subjected to mixing treatment, drug containing water phase mixed liquor are obtained, by institute
State polyphenyl polymethylene polyisocyanates, polyoxyethylene sorbitan laurate, castor oil polyoxyethylene ether and 45g
Corn oil carries out mixing treatment, obtains oil phase mixed liquor；
(3) the drug containing water phase mixed liquor, oil phase mixed liquor are mixed, is with shear velocity in high speed disperser
3000rpm carries out emulsification treatment 1.0min, obtains water-in-oil emulsion；
(4) the water-in-oil emulsion temperature is adjusted to 30 DEG C, carries out first time stir process 1.5h, is warming up to 55
DEG C, after carrying out second of stir process 4h, with tributyl phenol polyoxyethylene ether, sodium lignin sulfonate, aluminium-magnesium silicate, organic swelling
Soil carries out mixing treatment, is mended system to 100g with corn oil, stirs 0.5h, obtain the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium.
1.9 μm of preparation microsphere average grain diameter after testing, encystation rate 94.5%, suspensibility 99.2%, cold heat storage stability close
Lattice.
Embodiment 3
A kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, includes the raw material components of following mass fraction：
Glufosinate-ammonium 25g；
Isophorone diamine 0.5g；
Deionized water 25g；
Polyoxyethylene sorbitan laurate 1.0g；
Castor oil polyoxyethylene ether 0.5g；
Toluene di-isocyanate(TDI) 4.5g；
EO-PO block copolymers 3.0g；
Sodium lignin sulfonate 2.5g；
Aluminium-magnesium silicate 1.0g；
Gas-phase silica 2.0g；
Methyl oleate 35g,
The preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium includes the following steps：
(1) each component is weighed according to the raw material proportioning of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium；
(2) glufosinate-ammonium, hexamethylene diamine and deionized water are subjected to mixing treatment, drug containing water phase mixed liquor are obtained, by institute
State the methyl oleate of toluene di-isocyanate(TDI), polyoxyethylene sorbitan laurate, castor oil polyoxyethylene ether and 30g into
Row mixing treatment obtains oil phase mixed liquor；
(3) the drug containing water phase mixed liquor, oil phase mixed liquor are mixed, is with shear velocity in high speed disperser
4000rpm carries out emulsification treatment 0.5min, obtains water-in-oil emulsion；
(4) the water-in-oil emulsion temperature is adjusted to 30 DEG C, carries out first time stir process 1.5h, is warming up to 55
DEG C, after carrying out second of stir process 4h, with EO-PO block copolymers, sodium lignin sulfonate, aluminium-magnesium silicate, gas-phase silica
Mixing treatment is carried out, system is mended to 100g with methyl oleate, 0.5h is stirred, obtains the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium.
2.4 μm of preparation microsphere average grain diameter after testing, encystation rate 92.8%, suspensibility 99.1%, cold heat storage stability close
Lattice.
In order to better illustrate the characteristic of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium provided in an embodiment of the present invention, below will
The dispersible micro-capsule oil-suspending agent of glufosinate-ammonium prepared by embodiment 1,2,3 carries out field medicine effect test, and the results are shown in Table 1.
The prevention drug effect of bare place weeds is carried out to embodiment 1-3 and comparison medicament.Experimental plot main weeds are barnyard grass, horse
Tang, lamb's-quarters, purslane, Amaranthus retroflexus, the rhizome of nutgrass flatsedge, india lovegrass etc. sporadicly occur.
Before dispenser, each trial zone randomly chooses 4 sample prescriptions, and each sample area is 0.5m × 0.5m, investigation records sample
The type, quantity, plant height and true leaf number of weeds in side.L0d, 30d, 60d investigate each cell weeds with identical method after dispenser
Type and quantity, after last time investigates the type and quantity of weeds, estimate the coverage of cell weeds, and weigh in sample prescription
The quality of weeds fresh material.Correction strain preventive effect and quality preventive effect of each trial zone to weeds are calculated according to the result of investigation.
Table 1
The test of pesticide effectiveness the result shows that：3 embodiments of the present invention have preferable control effect to bare place weeds.Medication
After 10d, in the case of identical usage amount, 3 embodiments are suitable with comparison medicament to the control effect of weeds, show the present invention's
Embodiment is preferable to weeds quick-acting；When medication 30d, all processing correction strain preventive effects are more than 90% even close to 100%；But
It is after medication 60d, it is only 50% or so that comparison medicament, which corrects strain preventive effect, and 3 embodiments of the present invention are equal to the preventive effect of weeds
Close to 100%.Show that comparison medicament can only keep 30d to the preventive effect of weeds, and 3 embodiments of the invention are to the preventive effect of weeds
More than 60d, considerably beyond comparison medicament.
Weeds field control effectiveness test shows that the dispersible microcapsule suspending agent of glufosinate-ammonium of the invention has weeds and preferably holds
Continuous preventive effect, while not reducing quick-acting.Smaller times for spraying is can reach for preventing field efficacy using product of the present invention,
And then reduce the purpose of Pesticide use amount, meet the requirement of national pesticide " zero growth rate ", there is preferable promotional value.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, it is characterised in that：Include the raw material components of following mass fraction：
Glufosinate-ammonium 1%~30%；
Aqueous monomers 0.2%-0.8%；
Oiliness monomer 0.8%-7.2%；
Water 10%~30%；
Emulsifier 1%~6%；
Emulsifying dispersant 1%~6%；
Thickener 2%~8%；
Surplus is oil-based solvent,
Wherein, the oiliness monomer is used to form the cyst material of package active constituent glufosinate-ammonium with aqueous monomers.
2. the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as described in claim 1, it is characterised in that：The oiliness monomer is methyl
One kind in methyl acrylate, polyphenyl polymethylene polyisocyanates, toluene di-isocyanate(TDI)；The aqueous monomers are over cure
One kind in sour potassium, ethylenediamine, butanediamine, hexamethylene diamine, cyclohexanediamine or isophorone diamine.
3. the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as described in claim 1, it is characterised in that：The emulsifier is fatty alcohol
Polyoxyethylene ether, Span, polyoxyethylene sorbitan laurate, castor oil polyoxyethylene ether, phenethyl
One or more of phenol polyoxyethylene poly-oxygen propylene aether.
4. the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as described in claim 1, it is characterised in that：The emulsifying dispersant is alkane
Base phenol polyethenoxy ether phosphate, phenethyl phenol polyoxyethylene groups ether phosphate, alkyl sulfate, alkylsulfonate, polycarboxylic acids
Salt, lignosulfonates, EO-PO block copolymers phosphate and its esters, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphur
Hydrochlorate, naphthalene sulfonate petroleum sodium sulfonate, tributyl phenol polyoxyethylene ether, one kind in polyvinylpyrrolidonepolymers polymers or several
Kind.
5. the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as described in claim 1, it is characterised in that：The thickener is that gas phase is white
One or both of carbon black, organobentonite, aluminium-magnesium silicate.
6. the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as described in claim 1, it is characterised in that：The oil-based solvent is soybean
One or more of oil, corn oil, peanut oil, methyl oleate, white oil.
7. the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as described in claim 1, it is characterised in that：Including following mass fraction
Raw material components：
Glufosinate-ammonium 5%~25%；
Aqueous monomers 0.2%-0.5%；
Oiliness monomer 0.8%-4.5%；
Water 15%~25%；
Emulsifier 1%~3%；
Emulsifying dispersant 4%~6%；
Thickener 2%~4%；
Surplus is oil-based solvent.
8. a kind of preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium, it is characterised in that：Include the following steps：
(1) each group is weighed according to the raw material proportioning of the dispersible micro-capsule oil-suspending agent of the glufosinate-ammonium as described in any one of claim 1~7
Point；
(2) glufosinate-ammonium, aqueous monomers and water are subjected to mixing treatment, drug containing water phase mixed liquor are obtained, by the oil phase list
Body, emulsifier and oil-based solvent carry out mixing treatment, obtain oil phase mixed liquor；
(3) the drug containing water phase mixed liquor, oil phase mixed liquor are mixed, emulsification treatment is carried out in high speed disperser, obtains oil
Water-in type lotion；
(4) the water-in-oil emulsion temperature is adjusted to 25~30 DEG C, carries out first time stir process, is warming up to 45~70
DEG C, after carrying out second of stir process, mixing treatment is carried out with emulsifying dispersant, thickener, obtains the dispersible micro-capsule of glufosinate-ammonium
Oil-suspending agent.
9. the preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as claimed in claim 8, it is characterised in that：The emulsification
The shear velocity of processing is 2000~4000rpm, and the time is 0.5~1.0min.
10. the preparation method of the dispersible micro-capsule oil-suspending agent of glufosinate-ammonium as claimed in claim 8, it is characterised in that：Step (4)
In, the time of the first time stir process is 1-2h；The time of second of stir process is 4-20h；The time of mixing treatment
For 0.5-1h.
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Application publication date: 20180928 |