CN111374126A - Pesticide polymer synergist and application thereof in glyphosate preparation - Google Patents
Pesticide polymer synergist and application thereof in glyphosate preparation Download PDFInfo
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- CN111374126A CN111374126A CN201811635313.9A CN201811635313A CN111374126A CN 111374126 A CN111374126 A CN 111374126A CN 201811635313 A CN201811635313 A CN 201811635313A CN 111374126 A CN111374126 A CN 111374126A
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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
- 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
- A01N25/30—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 characterised by the surfactants
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/58—1,2-Diazines; Hydrogenated 1,2-diazines
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F216/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F216/36—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by a ketonic radical
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
Abstract
The invention relates to a pesticide polymer synergist and application thereof in glyphosate preparations, wherein the synergist comprises a polymer, the synergist is water-soluble, the solid content is 5-75%, the synergist is diluted with water until the pH value of an aqueous solution with the solid content of 1% is 5-8, and when the synergist is diluted with water to a solution with the solid content of 200ppm, the conductivity of the aqueous solution is 100-250 mu s/cm. The pesticide polymer synergist can improve the pesticide effect of the existing pesticide active ingredient preparation, including quick-acting property and lasting property in the effect of the active ingredient.
Description
Technical Field
The invention relates to a synergist, in particular to a pesticide polymer synergist and application thereof in a glyphosate preparation. The invention also relates to a preparation method of the pesticide polymer synergist and application of the pesticide polymer synergist in a glyphosate preparation or a herbicide taking glyphosate as a main component.
Background
The formulation of pesticidal active ingredients, such as herbicides, insecticides, acaricides, nematicides, fungicides, plant growth regulators and the like, to improve the efficacy of the active ingredients during preparation and use has been a very complicated project. At present, the preparation has fewer additives which can realize stable effect and improved effect, generally only the stability of the preparation is maintained, and the polymer additives which improve the effect of the preparation are more few.
Among pesticidal active ingredients, the improvement of the efficacy of a herbicidal herbicide such as glyphosate, particularly the improvement of the quick-acting and lasting effects, is a very important challenge. The chemical name of glyphosate is N- (phosphonomethyl) glycine, also known as: glyphosate, madam (Roundup), glyphosate, foscarnet, and the like, are commonly used in the form of their salts (referred to herein by the generic name glyphosate). The pure glyphosate is a non-volatile white solid, is stable to store at normal temperature, is insoluble in common organic solvents, is completely soluble in water by isopropylamine salt, sodium salt, potassium salt, ammonium salt and the like, and is commonly used for processing into glyphosate water agents with different concentrations, such as a 10% glyphosate water agent, a 41% glyphosate water agent, a 62% glyphosate water agent and the like (the percentage is the mass ratio, hereinafter, the glyphosate water agents are collectively called as the glyphosate water agents). The glyphosate is a non-selective and residue-free biocidal herbicide, is very effective for perennial rooting and early-maturing, is mainly absorbed by leaves, and the absorbed medicament is quickly conducted from phloem and mostly transferred to underground roots and underground stems within 24 hours, so that the effect of killing weeds in non-cultivated land is achieved, and the glyphosate is a broad-spectrum biocidal herbicide which is most commonly used in agricultural production.
When the glyphosate is prepared into an aqueous solution for use, the surface tension of the glyphosate is high, and the glyphosate cannot be wetted, spread and adhered on the surface of a target, so that a surfactant is usually required to be added to reduce the surface tension of the aqueous solution during use, and the spreadability, wettability and adhesion of a medicament on the surface of the target are improved, so that the effect of increasing the deposition amount is achieved. Because the surfactant which can be used for the glyphosate aqueous solution is not too many, and most anionic and nonionic surfactants can generate turbidity and the like in the glyphosate aqueous solution system, the selection of the surfactant in the glyphosate aqueous solution system is limited to a great extent, and in the very limited available surfactant, an aqueous solution which can obtain good appearance viscosity of the preparation and can obviously improve the activity of the glyphosate aqueous solution is prepared, which is a problem commonly faced by the industry.
In the glyphosate preparation industry at present, although individual surfactants such as alkyl glycoside (APG), imidazoline amphoteric surfactant, betaine surfactant, plant source surfactant (grass saponin, etc.), alkyl ammonium chloride, fatty alcohol ether wetting penetrant (barrel mixed), tallow amine polyoxyethylene ether (TAE 0), etc. are screened out, the use amount of the tallow amine surfactant is large, the cost is high, and the environmental compatibility is poor. The conventional surfactant has the defects of low drug effect, difficult foam elimination and the like. Therefore, it is important to develop a synergist for agricultural chemicals, and the synergist can be used in a glyphosate aqueous solution formula and a herbicide formula which takes glyphosate as a main component, so as to overcome various existing defects and the defects of the prior art.
In the present patent application of pesticide preparation, for example, patent publication No. CN106259456A discloses pesticide slow release synergist, the auxiliary agent include cosolvent, emulsifier and thickener, this auxiliary agent can mould the active ingredient of synergist and form the micellae, the macromolecular material of being convenient for wraps it, the macromolecular polymer material is the thionine of polysulfide, and this kind of macromolecular material has very high penetrability to be convenient for wrap up the active ingredient. Among them are high molecular weight polymers and mention is made of the effect on glyphosate formulations. Patent publication No. CN101475691A discloses acrylamide modified polymer micro-crosslinked gels, which are prepared using anions, cations and non-ions, but which produce products that are not suitable for use in glyphosate formulations.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a pesticide polymer synergist, which comprises a polymer, wherein the synergist is water-soluble and has a solid content of 5-75%, the pH value of an aqueous solution with the synergist diluted by water until the solid content is 1% is 5-8, and the electrical conductivity of the aqueous solution is 100-250 mu s/cm when the synergist is diluted by water until the solid content is 200 ppm.
Preferably, in the pesticide polymer synergist, the conductivity of the aqueous solution is 100-150 mu s/cm.
Preferably, in the pesticide polymer synergist, when the synergist is diluted with water or the synergist is concentrated to a solid content of 25%, the apparent viscosity of the synergist at 25 ℃ is 500-.
Preferably, the apparent viscosity of the synergist is 3000-.
Preferably, in the pesticide polymer synergist, the polymer is obtained by polymerizing a raw material containing an anionic monomer and a cationic monomer, and/or a nonionic monomer by a solution polymerization method.
Preferably, in the pesticide polymer synergist, the weight ratio of the anionic monomer to the cationic monomer to the nonionic monomer is 5-95: 5-95: 0-30.
Preferably, in the pesticide polymer synergist, the anionic monomer is one or more selected from acrylic acid, methacrylic acid, styrene sulfonate, acryloyl dimethyl taurate and itaconic acid; the cationic monomer is selected from one or more of dimethylaminoethyl methacrylate, dimethyl diallyl ammonium chloride, methacryl propyl trimethyl ammonium chloride and methacryl oxyethyl trimethyl ammonium chloride; the non-ionic monomer is selected from one or more of styrene, vinyl pyrrolidone, methacrylamide and acrylamide.
Particularly preferably, in the pesticide polymer synergist, the anionic monomer is one or two selected from acryloyl dimethyl taurate and itaconic acid; the cationic monomer is selected from one or two of methacryl propyl trimethyl ammonium chloride and methacryloyl oxyethyl trimethyl ammonium chloride; the nonionic monomer is selected from one or two of methacrylamide and acrylamide.
Preferably, in the pesticide polymer synergist, the solution polymerization method comprises the following steps:
(1) adding water and a neutralizer into a reaction kettle, slowly pumping an anionic monomer into the reaction kettle under the stirring state, controlling the temperature of the reaction kettle to be not more than 60 ℃, controlling the stirring speed to be within 60 r/min, and controlling the pH value of a system to be between 5 and 9;
(2) adding a cationic monomer and a nonionic monomer, and uniformly stirring;
(3) controlling the temperature of the system at 55-65 ℃, adding 2/3 initiator, stirring uniformly, controlling the stirring speed within 30 r/min, and keeping the reaction slowly;
(4) when the temperature of the system reaches 90 ℃, adding the rest initiator, keeping the temperature of the reaction kettle between 90 ℃ and 98 ℃, preserving the heat for 2 to 4 hours, and then reducing the temperature of the reaction kettle to 50 to 70 ℃;
(5) adding a chain terminator to stop the reaction to obtain the pesticide polymer synergist.
Preferably, in the pesticide polymer synergist, the neutralizing agent is one or more selected from sodium hydroxide, potassium hydroxide, ethanolamine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine and ammonia water.
Preferably, in the pesticide polymer synergist, the initiator is an inorganic peroxide or an organic peroxide, and preferably, the inorganic peroxide is one or more selected from ammonium persulfate, sodium persulfate and potassium persulfate, and can also be a commonly used inorganic peroxide. Preferably, the organic peroxide is benzoyl peroxide, and can also be a common organic peroxide.
Preferably, in the pesticide polymer synergist, the chain terminator is one or more selected from the group consisting of benzenediol, p-tert-butylcatechol, sodium dimethyldithiocarbamate, sodium polysulfide, sodium nitrite and sodium sulfite.
The invention also provides a white to yellowish powdery granular pesticide polymer synergist, which is characterized by being obtained by drying and crushing the pesticide polymer synergist.
The invention also provides a preparation method of the pesticide polymer synergist, which comprises the following steps: polymerizing raw materials containing an anionic monomer, a cationic monomer and/or a nonionic monomer by a solution polymerization method, controlling the solid content of a product to be 5-75%, diluting the product with water until the pH value of an aqueous solution with the solid content of 1% is 5-8, and when the product is diluted with water to a solution with the solid content of 200ppm, controlling the conductivity of the aqueous solution to be 100-250 mu s/cm, thus obtaining the pesticide polymer synergist.
Preferably, in the above preparation method, the conductivity of the aqueous solution is 100-.
Preferably, in the above method, the anionic monomer is selected from one or more of acrylic acid, methacrylic acid, styrene sulfonate, acryloyl dimethyl taurate and itaconic acid; the cationic monomer is selected from one or more of dimethylaminoethyl methacrylate, dimethyl diallyl ammonium chloride, methacryl propyl trimethyl ammonium chloride and methacryl oxyethyl trimethyl ammonium chloride; the non-ionic monomer is selected from one or more of styrene, vinyl pyrrolidone, methacrylamide and acrylamide.
Particularly preferably, in the above method, the anionic monomer is selected from one or two of acryloyl dimethyl taurate and itaconic acid; the cationic monomer is selected from one or two of methacryl propyl trimethyl ammonium chloride and methacryloyl oxyethyl trimethyl ammonium chloride; the nonionic monomer is selected from one or two of methacrylamide and acrylamide.
Preferably, in the above method, the method further comprises the step of drying and crushing the obtained pesticide polymer synergist to obtain white to yellowish powdery particles.
Specifically, the preparation method of the pesticide polymer synergist sequentially comprises the following steps:
(1) adding water and a neutralizer into a reaction kettle, slowly pumping an anionic monomer into the reaction kettle under the stirring state, controlling the temperature of the reaction kettle to be not more than 60 ℃, controlling the stirring speed to be within 60 r/min, and controlling the pH value of a system to be between 5 and 9;
(2) adding a cationic monomer and a nonionic monomer, and uniformly stirring;
(3) controlling the temperature of the system at 55-65 ℃, adding 2/3 initiator, stirring uniformly, controlling the stirring speed within 30 r/min, and keeping the reaction slowly;
(4) when the temperature of the system reaches 90 ℃, adding the rest initiator, keeping the temperature of the reaction kettle between 90 ℃ and 98 ℃, preserving the heat for 2 to 4 hours, and then reducing the temperature of the reaction kettle to 50 to 70 ℃;
(5) adding a chain terminator to stop the reaction to obtain the pesticide polymer synergist.
Preferably, in the above method for preparing a polymer pesticide synergist, the neutralizing agent is one or more selected from sodium hydroxide, potassium hydroxide, ethanolamine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine and ammonia water.
Preferably, in the above method for preparing a polymer pesticide synergist, the initiator is an inorganic peroxide or an organic peroxide, and the inorganic peroxide is preferably one or more selected from ammonium persulfate, sodium persulfate and potassium persulfate, and may also be a commonly used inorganic peroxide. Preferably, the organic peroxide is benzoyl peroxide, and can also be a common organic peroxide.
Preferably, in the above method for preparing a polymer pesticide synergist, the chain terminator is one or more selected from the group consisting of benzenediol, p-tert-butylcatechol, sodium dimethyldithiocarbamate, sodium polysulfide, sodium nitrite, and sodium sulfite.
The invention also provides a pesticide preparation, which comprises the pesticide polymer synergist and an active ingredient, wherein the pesticide polymer synergist accounts for 0.01-5.0% of the weight of the pesticide preparation, and the weight of the added pesticide polymer synergist is calculated according to the percent of solid content.
Preferably, in the pesticide preparation, the pesticide polymer synergist accounts for 0.1-1.0% of the pesticide preparation by weight.
According to the percentage, 5 percent of pesticide polymer synergist is added into 100g of pesticide preparation, and if the solid content of the pesticide polymer synergist is 50 percent, the amount of the pesticide polymer synergist needed for preparing 100g of pesticide preparation is 10 g.
In the pesticide preparation, the active ingredient is one or more of herbicide, insecticide, acaricide, nematicide, bactericide and plant growth regulator.
Preferably, in the above pesticide preparation, the herbicide is one or more of a herbicidal herbicide or a selective herbicide, or the herbicide is at least two or more of a herbicidal herbicide and a selective herbicide, and the herbicidal herbicide is one or more of glyphosate, glyphosate isopropylamine salt, glyphosate diammonium salt, glyphosate ammonium salt, glyphosate dimethylamine salt, glyphosate sodium salt, glyphosate potassium salt and paraquat.
Preferably, the selective herbicide is one or more of 2,4-D, 2-metolachlor, galaxacum, fluazifop-butyl, pendimethalin, atrazine, ametryn, metolachlor, butachlor, acetochlor, pretilachlor, mefenacet, isoproturon, diuron, oxyfluorfen, fomesafen, fluoroglycofen, lactofen, oxadiazon, tribenuron, bensulfuron-methyl, chlorimuron, nicosulfuron, pyrazosulfuron, tribenuron-methyl, rimsulfuron-sodium, trifloxysulfuron-sodium, molinate, prosulfocarb, bromoxynil, dicamba, diquat-ethyl, sethoxydim, clethodim, bentazone, quinclorac, isoxafluazin, fluroxypyr and benazolin.
Preferably, the herbicide also comprises a safener, wherein the safener is one or more of clomazone, cloquintocet-mexyl, chloranil, cyprosulfamide, dichlormid, fenchlorazole, fenclorim, cloquintocet-mexyl, fluroxypyr, furazolidone, mefenpyr-diethyl, naphthalic anhydride, chloranil, 2-methoxy-N- {4- [ (methylcarbamoyl) amino ] phenyl } sulfonyl) benzamide, 4- (dichloroacetyl) -1-oxa-4-azaspiro [4.5] decane and 2,2, 5-trimethyl-3- (dichloroacetyl) -1, 3-oxazolidine.
Preferably, the insecticide, acaricide, nematicide is selected from one or more of the following classes of active ingredients:
(1) acetylcholinesterase (AChE) inhibitors, for example carbamates, such as carbaryl, benfuracarb, propoxur, carbosulfan, ketoxycarb, carbosulfan, bendiocarb, varamidine, furacarb, bendiocarb, monocarb, carbofuran, pirimicarb, thiodicarb, gossypocarb, methiocarb, methomyl, methiocarb, oxamyl, metolcarb, aldicarb, ethiofencarb, isoprocarb, fenobucarb, triazamate and the like, or organophosphates, such as amicarbaza, phos, fenthion, fenamiphos, prothiofos, profenofos, pyridaphenthion, fosfamid, fosfamide, trichlorfon, dichlorfon, butylpyridinium, foscarnet, methidathion, diazinon, naloxon, fenthion, methidathion, pirimiphos, Chlorpyrifos-methyl, methyl valacifos, methyl systemic phosphorus, methyl disulfoton, monocrotophos, quinalphos, dimethoate, o- (methoxy amino thiophosphoryl) salicylic acid isopropyl ester, phosphamidon, cadusafos, chlormephos, phosphorus oxychloride, malathion, ethoprophos, aphifos, fosthiazate, triazophos, chlorfenvinphos, fenitrothion, methidathion, phosmet, omethoate, ethoprophos, ethion, acephate, isoxazoline, isofenphos, coumaphos and fenitrothion.
(2) Sodium channel modulators, such as pyrethroids (pyrethroids), for example d-bioallethrin, d-cis-bioallethrin, α -cypermethrin, β -cyfluthrin, β -cypermethrin, gamma-cyfluthrin, zeta-cypermethrin, theta-cypermethrin, lambda-cyhalothrin, tau-fluvalinate, tetramethrin, resmethrin, permethrin, resmethrin, allethrin, allelochrin, allethrin, pyrethrin, flupropathrin, silafluothrin, cyfluthrin, fenvalerate, fenpropathrin, bifenthrin, cyhalothrin, cypermethrin, etofenprox, sumicin, imiprothrin, thiothrin, bioresmethrin, bioallethrin, transfluthrin, tralomethrin, tetramethrin, beta-1-cyhalothrin, beta-1-fluthrin, beta-alpha-beta-fluthrin, beta-cyphenothrin, beta-beta.
(3) Nicotinic acetylcholine receptor (nAChR) competitive modulators, such as neonicotinoids, e.g., acetamiprid, clothianidin, dinotefuran, imidacloprid, nitenpyram, thiacloprid and thiamethoxam, nicotine, sulfoxaflor, flurbiprofuranone.
(4) Nicotinic acetylcholine receptor allosteric modulators, for example, spinosyns, such as spinetoram and spinosad.
(5) Glutamate-gated chloride channel allosteric modulators, e.g., avermectins/milbemycins, such as abamectin, emamectin benzoate, lepimectin, and miticidin.
(6) Juvenile hormone mimics, for example, juvenile hormone analogs such as hydroprene, methoprene, fenoxycarb or pyriproxyfen.
(7) Various non-specific (multi-site) inhibitors, such as alkyl halides, e.g. methyl bromide and other alkyl halides, chloropicrin, sulfuryl fluoride, borax, praline, or methyl isocyanate generators, e.g. dazomet and metam.
(8) Microbial disruptors of the mesenterium of insects, for example Bacillus thuringiensis subspecies israelensis, Bacillus sphaericus, Bacillus thuringiensis subspecies, Bacillus thuringiensis subspecies (Bacillus thuringiensis subspecies), and B.t. plant proteins.
(9) Mitochondrial ATP synthase inhibitors, for example ATP disruptors, for example diafenthiuron, or organotin compounds, for example azocyclotin, cyhexatin, fenbutatin, propargite or tetrachlorxasulfone.
(10) Nicotinic acetylcholine receptor channel blockers such as chlorfenapyr, cartap hydrochloride, thiocyclam or dimehypo.
(11) Inhibitors of chitin biosynthesis, such as bistrifluron, chlorfluazuron, diflubenzuron, epoxiconazole, flufenoxuron, hexaflumuron, lufenuron, noviflumuron or triflumuron.
(12) Ecdysone disruptors, for example cyromazine, ecdysone receptor agonists, for example chromafenomide, chlorfenozide, methoxyfenozide and tebufenozide.
(13) Other active ingredients, for example tetronic acid, spirodiclofen, spiromesifen, spirotetramat, amitraz, buprofezin, chlorfenapyr, Dinitrocresol (DNOC), flubendiamide, hydramethylnon, imazaquin, fluacrypyr, fenaminoxidin, fluacrypyrim, fenazaquin, fenpyroximate, pyridaben, tebufenpyrad, tolfenpyrad, rotenone, indoxacarb, metaflumizone, pymetrozine, flonicamid, clofentezine, etoxazole, chlordane, endosulfan, fipronil, pyrazopyr, cyflumetofen, chlorantraniliprole, bromocyantraniliprole, flubendiamide, alfana, azadirachtin, fenpiceid, bifenazate, fenitrofen, manypromazine, chlorpromazine, cyhalofenapyr, chlorfenapyr, cyhalothrin, flufenapyr, flu, E-imidacloprid guanidine, imidaclothiz, iprodione, kappa-bifenthrin, kappa-tefluthrin, meperfluthrin, meperidine, pyridalyl, pyriminostrobin, tetrafluoroethane, flucythrinate, sulfoxaflor or methyl iodide.
Preferably, the bactericide is 8-hydroxyquinoline copper, ametoctradin, fenpyrazamine, chlorothalonil, benzothiadiazole, benzovindiflupyr, metrafenone, benthiavalicarb, benalaxyl, zoxamide, fenpropidin, metominostrobin, penthiopyrad, isopyrazam, propiconazole, prothioconazole, propoxymine, boldo, kasugamycin, metiram, zineb, maneb, mancozeb, zineb, captafol, fenpropimorph, pyrimorph, coumoxystrobin, boscalid, dodine, carbendazim, calcium polysulfide, paclobutrazol, etoxazole, difenoconazole, dithianon, fluxapyroxafen, fluopicolide, fluazinam, epoxiconazole, flufenacet, flutriafol, fluoxastrobin, fluoxastrobilurin, flufenapyr, fluoxafen, fluoxastrobin, fluoxastrobilurin, fluoxafen, fluoxastrobin, fluoxastrobilurin, fluo, Fluxapyroxad, thiram, ziram, procymidone, benalaxyl-M, metalaxyl-M, fludioxonil, silthiopham, cyprosulfamide, cyproconazole, cyflufenamid, copper naphthenate, fenhexamid, metsulam-ethyl, tolclofos-methyl, thiophanate-methyl, metalaxyl-M, metconazole, myclobutanil, carbachol, captan, tridemorph, quinoxyfen, bixafen, phosphonic acid and salts thereof, copper sulfate, thiabendazole, spiroxamine, cloquinconazole, prochloraz, fenamidone, dimoxystrobin, kresoxim-methyl, cyprodinil, azoxystrobin, pyrimethanil, fenaminostrobin, folpet, triticonazole, mefenamipramine, thiabendazole, tiadinil, ethaboxam, triadimenol, mandipropamine, propamocarb, cyazofamid, thiflufenamidone, thiflufen, thifluzamide, metominostrobin, cyhalonil, thifluzamide, metominostrobin, cyhalo, Abscisic acid, carboxin, trifloxystrobin, orysastrobin, pentachlorophenol, pencycuron, tebuconazole, imazalil, enestroburin, dimethomorph, carvone, dichlorvos, validamide, iprovalicarb, copper oxide, copper oxychloride, metconazole, biscumylphthal, calcium fosetyl, sodium ethylphosphonate, diethofencarb, vinclozolin, iprodione, methyl isothiocyanate, isotianil, imazalil, natamycin, ipconazole, pyraclostrobin, and pyraclostrobin.
Preferably, the plant growth regulator is selected from the group consisting of 2-methyl-4-chlorobutyric acid, Skinrin, chlorgenin, chlormequat chloride, picloram, paraquat, chlorothalonil, pyridazinoic acid, benomyl, benayl aminopurine, glyphosate, hypersensitive protein, gibberellic acid 4, gibberellic acid 7, growth-promoting esters, cyanamide, isoprothiolane, diquat, diuron, dimetal, butyryl hydrazine, bromophenoxyacetic acid, paclobutrazol, diphenylurea, dinitrophenol, cycloheximide, fenpropinol, fluorosulfonyl oxamide, flumetralin, humic acid, chloroxidin, succinic acid, cyprodinil, cyclopropionamide, asulam, sulam, sulbencarb, chitosan, tolephthal, alachlor, methylcyclopropene, mefenoxazole, mencarb, mepiquat, metoxuron, furazarin, trinexapac-ethyl, ascorbic acid, waxy trinexapac-ethyl, bacillus, chlorpropham-oxy acetate, cloxacarbinol-acetate, chlorfenac acid, isoflurazole, gibberellin, 4, gibberellic acid 7, gibberellic acid, mepiquat, meperidine, forchlorfenuron, choline chloride, magnesium chlorate, dicamba methyl ester, moroxydine, jasmonic acid, naphthoxyacetic acid, naphthylacetic acid methyl ester, naphthylacetic acid ethyl ester, naphthylacetamide, allantoin, hydroxyl ethylhydrazine 2, thidiazuron, thionine, thiabendazole, triiodobenzoic acid, tributyrin, trifluoroindolebutyrate, triacontanol, phosphinobenzene, azoxystrobin, undecylenic acid, salicylic acid, tetracyclic azole, rosigliadiene, glycidic acid, furoic acid, clorac, diazepam, pyrim, tolazen, defoliate, fluorene butyric acid amine, uniconazole, adenine, nicotinamide, ethylene diphosphonic acid, ethylenedioxime, vinylsilicon, ethofenoxate, carboxanide, buddle, endothal, indolypropionic acid, indolebutyric acid, indoleacetic acid, indolizinate, zeatin, androsterone, rutinoside, yield-increasing amine, One or more of moroxydine, oxime, glyphosate, tryptamine, glucosamine, shaping alcohol, decanol, butralin and fruit acid are increased.
In the pesticide preparation, the dosage form of the pesticide preparation is the granular dosage form, the powder dosage form or the liquid dosage form, and particularly preferably, the pesticide dosage form is an aqueous agent, wettable powder or soluble granules.
Generally, granular dosage forms and powder dosage forms may also be referred to as solid dosage forms.
The invention also provides the application of the pesticide polymer synergist, and the pesticide polymer synergist is used for improving the effect of pesticide active ingredients.
In the above uses, the active ingredient is one or more of herbicides, insecticides, acaricides, nematicides, bactericides and plant growth regulators.
Preferably, the herbicide is one or more of a killing herbicide or a selective herbicide, or the herbicide is at least two of the killing herbicide and the selective herbicide, and the killing herbicide is one or more of glyphosate, glyphosate isopropylamine salt, glyphosate diammonium salt, glyphosate ammonium salt, glyphosate dimethylamine salt, glyphosate sodium salt, glyphosate potassium salt and paraquat.
In the above use, the selective herbicide is one or more of 2,4-D, 2-methyl-4-chloro, galbanum, fluazifop-butyl, pendimethalin, atrazine, ametryn, metolachlor, butachlor, acetochlor, pretilachlor, mefenacet, isoproturon, diuron, oxyfluorfen, fomesafen, fluoroglycofen, lactofen, oxadiazon, tribenuron, bensulfuron-methyl, chlorimuron, nicosulfuron, pyrazosulfuron, tribenuron-methyl, rimsulfuron, trifloxysulfuron sodium, bentazone, prosulfocarb, dicamba, diquat, clethodim, bentazone, quinclorac, isoxafluazin, fluroxypyr and benazolin.
The invention has the advantages of
The pesticide polymer synergist is a polymer with certain molecular weight and physicochemical characteristics, which is prepared by adopting an anionic monomer, a cationic monomer and/or a nonionic monomer with a specific structure through a solution polymerization method, and the effect of pesticide active ingredients, such as the weeding effect of a glyphosate preparation, can be effectively improved by utilizing the synergistic effect of the polymer and the surface activity of small molecules and the property of the polymer monomer.
The pesticide polymer synergist can improve the pesticide effect of the existing pesticide active ingredient preparation, including quick-acting property and lasting property, for example, in the pesticide effect of glyphosate preparations, the quick-acting property ensures that the weeding rate of the glyphosate preparations is improved by more than 10 percent in 7 days, and the lasting property ensures that weeds after the glyphosate preparations are applied for treatment are not turned green basically in 30 days.
During the preparation of the pesticide preparation, the pesticide polymer synergist can improve the stability of the preparation, for example, during the preparation of the glyphosate preparation, the stability of the glyphosate preparation can be realized by adopting the pesticide polymer synergist, and the quick-acting property and the lasting property of the glyphosate preparation can be improved.
Detailed Description
Example 1: preparation of pesticide polymer synergist
The formula of the raw materials for preparing the pesticide polymer synergist is shown in the following table 1, the raw materials of the products with the pesticide polymer synergist with the code numbers of A1, A2, A3, A4, A5 and A6 are respectively prepared, and the raw material components and the weight condition of the products are shown in the following table 1 (the weight unit is kg).
TABLE 1 formulation of polymeric synergist for agricultural chemicals A1-A6
The total amount of water used to make up the raw materials was 100kg per product run.
The preparation method of each product is as follows:
(1) adding water and a neutralizing agent into a reaction kettle according to the formula shown in the table 1, slowly pumping an anionic monomer into the reaction kettle in a stirring state, controlling the temperature to be 55 +/-3 ℃, the stirring speed to be 50 r/min and the pH value to be about 6.5;
(2) adding a cationic monomer and a nonionic monomer, and uniformly stirring;
(3) controlling the temperature to be about 60 ℃, adding 2/3 initiator, stirring uniformly, controlling the stirring speed to be 20 r/min, and keeping the reaction slowly;
(4) controlling the temperature to be 90 ℃, adding the rest initiator, keeping the temperature of the reaction kettle between 90 ℃ and 98 ℃, preserving the heat for 2.5 hours, and then reducing the temperature of the reaction kettle to 60 ℃;
(5) adding a chain terminator to stop the reaction to obtain pesticide polymer synergists A1, A2, A3, A4, A5 and A6.
(6) The pesticide polymer synergist obtained in the step (5) can be dried and crushed to obtain powdery and granular pesticide polymer synergists A1F, A2F, A3F, A4F, A5F and A6F.
Example 2: performance detection of pesticide polymer synergist
The performance of the synergists a1, a2, A3, a4, a5 and a6 was tested to obtain the data shown in table 2 below, wherein the solid content test method of the synergists is an industry standard method, and the pH was measured by diluting the synergists with water until the solid content of the solution is 1%. The conductivity of the aqueous solution is measured by diluting the pesticide polymer synergist with water until the solid content of the aqueous solution is 200 ppm. The viscosity measurement method is to dilute or concentrate the pesticide polymer synergist to 25% of solid content and then measure the viscosity.
TABLE 2 Performance of synergist products A1-A6
Example 3: effect test of pesticide polymer synergist on glyphosate preparation synergism
0.01-5.0 percent (calculated by percent of solid content, the same below) of pesticide polymer synergists A1, A2, A3, A4, A5 and A6 are added into 30 percent of glyphosate aqueous solution, generally, the adding percentage is that the pesticide polymer synergists are added by percent of solid content, and then the weeding effect of the original glyphosate aqueous solution added with the pesticide polymer synergists and without the pesticide polymer synergists is respectively detected.
The weeding effect position of the glyphosate is the weeds in Guangdong Shantou orchard, the average height of the weeds in the pesticide application period is 30-50 cm, and no herbicide is sprayed in the growth period of the weeds. In the pesticide spraying process of orchard weeds, a micro sprayer is adopted, the concentration and the amount of pesticide application are diluted according to the dilution proportion of the specification of the pesticide preparation until the glyphosate content is 4000ppm, and the preparation added with the pesticide polymer synergist and the original preparation not added with the pesticide polymer synergist are diluted to the same amount of the active ingredient (4000 ppm according to the glyphosate content). The application time requires a uniform test under windless and sunny weather, the area of each test sample is about 0.4 square meter, each preparation is subjected to 3 times of test repetition, and the average value is taken as the final result. Test results the weed mortality rate for 7 days, 14 days and weed greenness recovery rate for 30 days were investigated. The criteria for weed kill by herbicides are that all foliage of the weeds are withered yellow, that of the heartleaf of grasses and that of the top leaf of broadleaf weeds.
Whether the pesticide polymer synergist is added or not, the pesticide application method of the pesticide preparation and the effect statistical method aiming at the target are counted according to the product standard requirements of the original pesticide preparation. The weed killing rate is calculated by dividing the number of dead weed plants by the number of surviving weed plants before application, the green return rate is calculated by dividing the number of the green return plants by the number of dead weed plants counted 7 days and 14 days after application, and the test result of each mixed sample is the average value of three test plots.
TABLE 3 synergistic effect of polymeric synergist of pesticide on 30% glyphosate aqueous solution
From the test results, the pesticide polymer synergist has a synergistic effect on increasing the pesticide effect of a 30% glyphosate water solution. The herbicide mainly shows two aspects, one is to improve the weed removal rate of weeds in 7 days, the quick action of weeding is improved, the death rate of weeds is obviously improved, the death rate of weeds is improved by more than 10%, the maximum weed removal rate of weeds can be improved by about 21%, the effect of the green return rate in 30 days is better, the application of the polymer synergist can realize that the green return is basically not carried out in 30 days, the application of the pesticide polymer synergist has the worst effect, the green return rate is only 0.7%, and the effect is far better than that of a pesticide preparation without the polymer synergist.
According to the test method, the influence of the pesticide polymer synergist of the invention on the pesticide effect of other preparations related to commercial glyphosate is respectively measured, activity verification is carried out by adding 41% of glyphosate isopropylamine salt aqueous solution, 62% of glyphosate isopropylamine salt aqueous solution, 30% of glyphosate aqueous solution, 50% of wettable powder of glyphosate ammonium salt, 75.7% of soluble granule of glyphosate ammonium salt, 50.2% of glyphosate dimethylammonium salt aqueous solution and 42% of glyphosate potassium salt aqueous solution into the pesticide polymer synergist A1, A2, A3, A4, A5 and A6 or the pesticide polymer synergist A1F, A2F, A3F, A4F, A5F and A6F prepared in the example 1, and the addition amount of the pesticide polymer synergist is varied from 0.01 to 5.00% according to dry matter calculation, so as to obtain better effect and simultaneously ensure the cost of the synergist, and is controlled to be from 0.1 to 1.0%. The types of the added pesticide polymer synergist are randomly selected from the 12 types. Generally, pesticide polymer synergists A1, A2, A3, A4, A5 or A6 are added to liquid preparations, while pesticide polymer synergists A1F, A2F, A3F, A4F, A5F and A6F are generally added to solid particle or powder preparations, and the amount of the added synergists is calculated according to the percent of solid content.
According to the method for performing field test after adding the pesticide polymer synergist to the 30% glyphosate water solution, the 14-day weed control rate and the 30-day green return rate of the glyphosate preparation with the pesticide polymer synergist and the glyphosate preparation without the pesticide polymer synergist are respectively measured, and the obtained results are that the 14-day weed control rate is more than 95%, the weed control rate is more than 5% of that without the pesticide polymer synergist, and the 30-day green return rate is less than 1%.
Therefore, the pesticide polymer synergist provided by the invention has a very remarkable effect on improving the weeding effect of the glyphosate preparation and reducing the green turning rate of weeds after application.
Example 4: effect test of Glyphosate formulation comprising polymeric pesticide synergist
The pesticide polymer synergist obtained in the embodiment of the invention is applied to a glyphosate aqueous solution, glyphosate raw pesticide is glyphosate raw powder, various forms of salts of glyphosate or a compound of glyphosate serving as a main herbicide component and other herbicides, and 62% of glyphosate isopropylamine salt and glyphosate raw powder are respectively selected as raw materials in the following embodiment to prepare the glyphosate aqueous solution.
Preparation of glyphosate preparation
Glyphosate aqua 1
10g of the pesticide polymer synergist A1 obtained in example 1, 50 g of alkyl glycoside, 660 g of 62% glyphosate isopropylamine salt mother liquor and 280 g of water are added into a stirring pot, stirred for about 30min, and the pH value of the system is adjusted to 4.8, so that the glyphosate aqueous solution 1 is obtained.
Glyphosate aqua 2
12 g of the pesticide polymer synergist A5 obtained in example 1, 40 g of alkyl glycoside, 660 g of 62% glyphosate isopropylamine salt mother liquor and 245 g of water are added into a stirring pot, stirred for about 30min, 40 g of ammonium sulfate is added, stirred for 10min, and the pH value of the system is adjusted to 4.5, so that the glyphosate aqueous solution 2 is obtained.
Glyphosate aqua 3
10g of the pesticide polymer synergist A6 obtained in the example 1, 60 g of imidazoline amphoteric surfactant, 500 g of 62% glyphosate isopropylamine salt mother liquor and 430 g of water are added into a stirring pot, stirred for about 30min, and the pH value of the system is adjusted to 4.6, so that the glyphosate aqueous solution 3 is obtained.
Glyphosate aqua 4
Adding 316 g of 95% glyphosate raw powder, 404 g of water and 220 g of 25% ammonia water into a stirring pot, stirring for 15min, adding 10g of the pesticide polymer synergist A4 obtained in example 1 and 50 g of alkyl glucoside into the stirring pot, and stirring for about 30 min; and adjusting the pH value of the system to 4.7 to obtain the glyphosate aqueous solution 4.
Glyphosate aqua 5
Adding 316 g of 95% glyphosate raw powder, 527 g of water and 87 g of 98% potassium hydroxide into a stirring pot, stirring for 15min, adding 20 g of the pesticide polymer synergist A2 obtained in example 1 and 50 g of alkyl glucoside into the stirring pot, and stirring for about 30 min; adjusting the pH value of the system to 4.9 to obtain the glyphosate aqueous solution agent 5.
Second, glyphosate weeding effect test
The glyphosate water agent 1-5 is measured according to the following national standards, and the measurement standards are as follows:
dilution stability: HG/T2467.5-2003/4.9
Persistent foaming: HG/T2467.5-2003/4.11
Low-temperature stability: GB/T19137-2003
Thermal storage stability: GB/T19136-2003
The results of the performance measurements for aqueous glyphosate formulations 1-5 are shown in table 4 below:
TABLE 4 Performance of Glyphosate formulations prepared with polymeric pesticide synergists
The test results show that all indexes of the glyphosate aqueous solution added with the pesticide synergist are qualified, namely, in the process of preparing the glyphosate preparation, the pesticide polymer synergist is used as a raw material to ensure all preparation requirements of the glyphosate preparation.
The glyphosate aqueous solution 1-5 is subjected to field tests, the test method refers to example 3, and the specific results are shown in the following table 5.
TABLE 5 herbicidal Effect of aqueous Glyphosate formulation
Note: the commercial preparation in table 5 is a 30% glyphosate aqueous solution, and the commercial preparation does not contain a pesticide polymer synergist.
From the test results, the glyphosate water agent prepared by the pesticide polymer synergist has very beneficial weeding effect, better weeding effect than similar excellent products in the industry, and relatively outstanding effect.
Example 5: effect test of other active ingredient formulations containing polymeric potentiators of agricultural Agents
The effect verification is carried out on the bactericide azoxystrobin, the insecticide pleocidin, the acaricide pyridaben and the plant growth regulator brassinolide, the amount of the synergist A4 added in the existing preparation is 0.5 percent by weight, then the effect comparison is carried out with the preparation without the synergist, the measured effect increase indexes are as follows, and the specific conditions are as shown in the following table 6:
TABLE 6 Effect of potentiators on pesticidal active ingredients
The pesticide effect tests of the ingredients except the pesticide active ingredients in the table 6 show that the synergist of the invention can improve the corresponding effect of the pesticide active ingredients.
The above are merely specific illustrations of the polymeric pesticide synergist and the formulation of the active pesticide ingredient of the present invention, and these examples are not intended to limit the scope of the present invention, and equivalent implementations or modifications, such as replacement of common reagents used in the polymerization process of the polymeric pesticide synergist or replacement of common adjuvants used in aqueous glyphosate solutions, without departing from the technical solutions of the present invention, should be included in the scope of the present invention.
Claims (18)
1. A pesticide polymer synergist comprises a polymer, wherein the synergist is water-soluble, the solid content of the synergist is 5-75%, the pH value of an aqueous solution with the solid content of 1% diluted by water is 5-8, and the electrical conductivity of the aqueous solution is 100-250 mu s/cm when the synergist is diluted by water to a solution with the solid content of 200 ppm.
2. The polymeric synergist for agricultural chemicals according to claim 1, wherein the apparent viscosity of the synergist is 500-.
3. The pesticide polymeric synergist of claim 1, wherein the polymeric synergist is obtained by polymerizing a raw material comprising an anionic monomer and a cationic monomer, and/or a nonionic monomer by a solution polymerization method, wherein the weight ratio of the anionic monomer to the cationic monomer to the nonionic monomer is 5-95: 5-95: 0-30.
4. The polymeric synergist for agricultural chemicals according to claim 3, wherein the anionic monomer is selected from one or more of acrylic acid, methacrylic acid, styrene sulfonate, acryloyl dimethyl taurate and itaconic acid; the cationic monomer is selected from one or more of dimethylaminoethyl methacrylate, dimethyl diallyl ammonium chloride, methacryl propyl trimethyl ammonium chloride and methacryl oxyethyl trimethyl ammonium chloride; the non-ionic monomer is selected from one or more of styrene, vinyl pyrrolidone, methacrylamide and acrylamide.
5. The polymeric pesticide synergist according to claim 4, wherein the solution polymerization process comprises the steps of:
(1) adding water and a neutralizer into a reaction kettle, slowly pumping an anionic monomer into the reaction kettle under the stirring state, controlling the temperature of the reaction kettle to be not more than 60 ℃, controlling the stirring speed to be within 60 r/min, and controlling the pH value of a system to be between 5 and 9;
(2) adding a cationic monomer and a nonionic monomer, and uniformly stirring;
(3) controlling the temperature of the system at 55-65 ℃, adding 2/3 initiator, stirring uniformly, controlling the stirring speed within 30 r/min, and keeping the reaction slowly;
(4) when the temperature of the system reaches 90 ℃, adding the rest initiator, keeping the temperature of the reaction kettle between 90 ℃ and 98 ℃, preserving the heat for 2 to 4 hours, and then reducing the temperature of the reaction kettle to 50 to 70 ℃;
(5) adding a chain terminator to stop the reaction to obtain the pesticide polymer synergist.
6. The polymeric synergist for agricultural chemicals according to claim 5, wherein the neutralizer is one or more selected from the group consisting of sodium hydroxide, potassium hydroxide, ethanolamine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine and ammonia, the initiator is an inorganic peroxide or an organic peroxide, the chain terminator is one or more selected from the group consisting of benzenediol, p-tert-butylcatechol, sodium dimethyldithiocarbamate, sodium polysulfide, sodium nitrite and sodium sulfite, preferably, the inorganic peroxide is one or more selected from the group consisting of ammonium persulfate, sodium persulfate and potassium persulfate, and the organic peroxide is benzoyl peroxide.
7. A powdery and powdery pesticide polymer synergist in white to yellowish color, which is obtained by drying and pulverizing the pesticide polymer synergist of any one of claims 1 to 6.
8. The method for producing a pesticidal polymer synergist according to any one of claims 1 to 6, comprising the steps of: polymerizing raw materials containing an anionic monomer, a cationic monomer and/or a nonionic monomer by a solution polymerization method, controlling the solid content of a product to be 5-75%, diluting the product with water until the pH value of an aqueous solution with the solid content of 1% is 5-8, and when the product is diluted with water to a solution with the solid content of 200ppm, controlling the conductivity of the aqueous solution to be 100-250 mu s/cm, thus obtaining the pesticide polymer synergist.
9. The method according to claim 8, wherein the anionic monomer is selected from one or more of acrylic acid, methacrylic acid, styrene sulfonate, acryloyl dimethyl taurate and itaconic acid; the cationic monomer is selected from one or more of dimethylaminoethyl methacrylate, dimethyl diallyl ammonium chloride, methacryl propyl trimethyl ammonium chloride and methacryl oxyethyl trimethyl ammonium chloride; the non-ionic monomer is selected from one or more of styrene, vinyl pyrrolidone, methacrylamide and acrylamide.
10. The method according to claim 8, wherein the method further comprises a step of drying and pulverizing the obtained polymeric synergist for agricultural chemicals to obtain white to yellowish powdery particles.
11. The method according to claim 9, characterized in that it comprises, in order, the steps of:
(1) adding water and a neutralizer into a reaction kettle, slowly pumping an anionic monomer into the reaction kettle under the stirring state, controlling the temperature of the reaction kettle to be not more than 60 ℃, controlling the stirring speed to be within 60 r/min, and controlling the pH value of a system to be between 5 and 9;
(2) adding a cationic monomer and a nonionic monomer, and uniformly stirring;
(3) controlling the temperature of the system at 55-65 ℃, adding 2/3 initiator, stirring uniformly, controlling the stirring speed within 30 r/min, and keeping the reaction slowly;
(4) when the temperature of the system reaches 90 ℃, adding the rest initiator, keeping the temperature of the reaction kettle between 90 ℃ and 98 ℃, preserving the heat for 2 to 4 hours, and then reducing the temperature of the reaction kettle to 50 to 70 ℃;
(5) adding a chain terminator to stop the reaction to obtain the pesticide polymer synergist.
12. The method according to claim 11, wherein the neutralizing agent is one or more selected from the group consisting of sodium hydroxide, potassium hydroxide, ethanolamine, monoethanolamine, diethanolamine, triethanolamine, isopropanolamine and aqueous ammonia, the initiator is an inorganic peroxide or an organic peroxide, the chain terminator is one or more selected from the group consisting of benzenediol, p-tert-butylcatechol, sodium dimethyldithiocarbamate, sodium polysulfide, sodium nitrite and sodium sulfite, preferably, the inorganic peroxide is one or more selected from the group consisting of ammonium persulfate, sodium persulfate and potassium persulfate, and the organic peroxide is benzoyl peroxide.
13. A pesticidal preparation comprising the pesticidal polymer synergist described in any one of claims 1 to 6 and an active ingredient, wherein the pesticidal polymer synergist accounts for 0.01 to 5.0% by weight of the pesticidal preparation, and the weight of the added pesticidal polymer synergist is calculated by solid content.
14. The pesticide formulation according to claim 13, characterized in that the active ingredient is one or more of herbicides, insecticides, acaricides, nematicides, bactericides, plant growth regulators.
15. The pesticide formulation of claim 14, wherein said herbicide is one or more of a herbicidal herbicide or a selective herbicide, or the herbicide is at least two or more of a herbicidal herbicide and a selective herbicide, and the herbicidal herbicide is one or more of glyphosate, glyphosate isopropylamine salt, glyphosate diammonium salt, glyphosate ammonium salt, glyphosate dimethylamine salt, glyphosate sodium salt, glyphosate potassium salt, and paraquat.
16. The pesticide preparation according to claim 13, wherein the pesticide preparation is in the form of granules, powder or liquid, preferably, the pesticide preparation is in the form of aqueous solution, wettable powder or soluble granules.
17. Use of the pesticidal polymer synergist described in any one of claims 1 to 6 for improving the effect of a pesticidal active ingredient.
18. Use according to claim 16, characterized in that the active ingredient is one or more of a herbicide, insecticide, acaricide, nematicide, fungicide, plant growth regulator.
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| CN113907069A (en) * | 2020-11-30 | 2022-01-11 | 南开沧州渤海新区绿色化工研究有限公司 | Glufosinate-ammonium moisturizing synergistic composition and preparation method thereof |
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| CN113796389B (en) * | 2021-09-06 | 2023-03-24 | 鞍钢栗田(鞍山)水处理有限公司 | Composite bactericide suitable for blast furnace closed circulating water and preparation and use methods thereof |
| CN115088547A (en) * | 2022-07-08 | 2022-09-23 | 烟台大为苗木有限公司 | High-yield cultivation method for vigorous stock apple trees |
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