CN113475502A - Efficient auxiliary agent suitable for suspending agent containing pesticide emamectin benzoate - Google Patents
Efficient auxiliary agent suitable for suspending agent containing pesticide emamectin benzoate Download PDFInfo
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- CN113475502A CN113475502A CN202110903765.6A CN202110903765A CN113475502A CN 113475502 A CN113475502 A CN 113475502A CN 202110903765 A CN202110903765 A CN 202110903765A CN 113475502 A CN113475502 A CN 113475502A
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- emamectin benzoate
- polyoxyethylene ether
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- suspending agent
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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
- A01N25/30—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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/28—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof containing the group; Thio analogues thereof
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
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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
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
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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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/34—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
Abstract
The invention discloses a high-efficiency auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate, which is prepared from the following raw materials in percentage by mass: 1-50% of styryl phenol polyoxyethylene ether phosphate, 1-30% of propylene glycol block polyether, 1-40% of fatty alcohol polyoxyethylene ether, 1-20% of isomeric tridecanol polyoxyethylene ether and 10-50% of water; the auxiliary agent suitable for the suspending agent containing the pesticide emamectin benzoate has excellent and efficient surface activities such as wetting and dispersing, is small in dosage and stable in dispersing and suspending performance; the auxiliary agent can obviously inhibit the aggregation and crystal growth of pesticide suspended particles, and can effectively avoid the problems of layering, precipitation, paste formation and the like of the suspending agent containing the pesticide emamectin benzoate; meanwhile, the auxiliary agent is suitable for various suspending agents containing pesticide emamectin benzoate, including bactericides and insecticides, including single-agent and binary or ternary compound emamectin benzoate suspending agents.
Description
Technical Field
The invention belongs to the field of agricultural pesticide surfactants, and relates to a high-efficiency auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate.
Background
Emamectin benzoate (known as emamectin benzoate) as a white or pale yellow crystalline powder, soluble in acetone and methanol, slightly soluble in water, and insoluble in hexane. The pesticide is a novel high-efficiency semi-synthetic antibiotic pesticide synthesized from a fermentation product abamectin B1, and has the characteristics of super high efficiency, low toxicity (the preparation is nearly nontoxic), low residue, no public nuisance and other biological pesticides. Is widely used for preventing and controlling various pests on crops such as vegetables, fruit trees, cotton and the like.
The Suspension Concentrate (SC) is a new green and environment-friendly pesticide formulation and is the main direction for the development of current pesticide formulations. A pesticide is developed into an aqueous suspension, the general view is that a raw pesticide is stable in water, the water solubility is low, the effective content is high, emamectin benzoate is stable in a water system, the raw pesticide is slightly soluble in water, the water solubility is improved more after grinding, the raw pesticide content is low (the effective content is less than or equal to 80 percent generally), the impurity content is high, the SC prepared is easy to have excessive viscosity, even gelatinization, creaming or thermal storage crystal growth, the development difficulty is high, and a proper auxiliary agent system needs to be screened out to maintain the thermodynamic and kinetic stable system.
Disclosure of Invention
The invention aims to research a special auxiliary agent for emamectin benzoate and a compound preparation thereof by carrying out a large number of tests and screens on the dispersing agent and the wetting agent, and the auxiliary agent has low cost and good preparation stability.
In order to achieve the purpose, the invention provides the following technical scheme:
an auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate is prepared from the following raw materials in percentage by mass:
1-50% of styryl phenol polyoxyethylene ether phosphate, 1-30% of propylene glycol block polyether, 1-40% of fatty alcohol polyoxyethylene ether, 1-20% of isomeric tridecanol polyoxyethylene ether and 10-50% of water.
The material is preferably prepared from the following raw materials in percentage by mass: 10-40% of styryl phenol polyoxyethylene ether phosphate, 5-30% of propylene glycol block polyether, 5-20% of fatty alcohol polyoxyethylene ether, 5-10% of isomeric tridecanol polyoxyethylene ether and 15-50% of water.
Further preferably prepared from the following raw materials in percentage by mass: 20-35% of styryl phenol polyoxyethylene ether phosphate, 10-25% of propylene glycol block polyether, 5-15% of fatty alcohol polyoxyethylene ether, 5-19% of isomeric tridecanol polyoxyethylene ether and 28-50% of water.
Most preferably, the material is prepared from the following raw materials in percentage by mass: 30% of styryl phenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 5% of fatty alcohol polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether and 50% of water.
The invention utilizes the similarity and compatibility of the styrene phenol structure and the fatty alcohol polyether structure to be firmly adsorbed on the surface of the emamectin benzoate raw drug (the emamectin benzoate raw drug is of a heterocyclic structure with a benzene ring); due to the hydrophilicity of the polyoxyethylene ether, the polyoxyethylene ether is dispersed in water, an adsorption layer is formed on the surface of solid particles, so that the charge on the surface of the particles is increased, the steric hindrance is increased, the reaction force between the particles is improved, the wetting and dispersing effects on the surface of the original drug particles are achieved, the formula is not easy to agglomerate, the austenite curing is not easy to occur, the whole preparation system is not easy to separate out water in a macroscopic view, the creaming is not easy, and the particle size is not easy to grow.
The preparation method of the auxiliary agent suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether into water according to a proportion at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
The dosage of the auxiliary agent in the emamectin benzoate suspending agent is 5-9%, and the dosage of the auxiliary agent in the emamectin benzoate suspending agent product is preferably 5-6%. The application of the auxiliary agent in the suspending agent product containing emamectin benzoate comprises the following steps: uniformly mixing emamectin benzoate, an auxiliary agent and water according to a ratio, adding a defoaming agent, and uniformly dispersing the materials to prepare a suspension premix; the temperature is controlled below 40 ℃, the obtained suspension premix is ground to form a product containing the emamectin benzoate suspending agent, the suspension particle size is less than or equal to 5 microns, and the suspension rate is more than or equal to 90%.
Compared with the prior art, the invention has the beneficial effects that:
the auxiliary agent suitable for the suspending agent containing the pesticide emamectin benzoate has excellent and efficient surface activities such as wetting and dispersing, is small in dosage and stable in dispersing and suspending performance; the auxiliary agent can obviously inhibit the aggregation and crystal growth of pesticide suspended particles, and can effectively avoid the problems of layering, precipitation, paste formation and the like of the suspending agent containing the pesticide emamectin benzoate; meanwhile, the auxiliary agent is suitable for various suspending agents containing pesticide emamectin benzoate, including bactericide and insecticide, including single-agent and binary or ternary compound emamectin benzoate suspending agent; the auxiliary agent is applied to the emamectin benzoate suspending agent containing pesticide, and after grinding, the emamectin benzoate suspending agent is further dispersed uniformly, the particle settling rate is slowed down, the attachment capacity is enhanced, and the suspension stability of the emamectin benzoate suspending agent is improved.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
Example 1
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate, which comprises the following raw materials in percentage by mass: 30% of styryl phenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 5% of fatty alcohol polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether and 50% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application of the auxiliary agent in the suspending agent product containing emamectin benzoate is as follows:
1) mixing 3% of emamectin benzoate, 5% of the auxiliary agent in the embodiment 1, 5% of antifreezing agent ethylene glycol, 0.15% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, and uniformly dispersing the materials to prepare a suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 2 times by a sand mill to form a suspension agent product with the suspension particle size (D90) less than or equal to 5 microns, the suspension rate more than 90 percent and 3 percent of emamectin benzoate.
The 3% emamectin benzoate suspending agent prepared in the embodiment is a viscous white homogeneous phase suspending liquid, the suspension rate of active ingredients is more than or equal to 95%, the particle size (D90) of particles is less than or equal to 5 mu m, no layering, precipitation and paste formation are caused during cold storage (0 +/-1 ℃) and hot storage (54 +/-2 ℃) for 14 days, and the stability is qualified.
Example 2
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 10% of styrylphenol polyoxyethylene ether phosphate, 30% of propylene glycol block polyether, 10% of fatty alcohol polyoxyethylene ether, 10% of isomeric tridecanol polyoxyethylene ether and 40% of water.
In this embodiment, the preparation method of the adjuvant for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application method of the auxiliary agent in the chlorfenapyr emamectin benzoate suspending agent product comprises the following steps:
1) mixing 10% of chlorfenapyr, 2% of emamectin benzoate, 5% of the auxiliary agent, 5% of antifreezing agent ethylene glycol, 0.1% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials, and preparing into suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 3 times by a sand mill to form 2 percent of emamectin benzoate and 10 percent of chlorfenapyr SC with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate more than 90 percent.
The suspending agent of the emamectin benzoate 2% and the chlorfenapyr SC prepared in the embodiment is a viscous white homogeneous suspension liquid, the suspension rate of the effective components is more than or equal to 95%, the particle size (D90) of the particles is less than or equal to 5 mu m, and the suspending agent has no layering, precipitation and paste formation after being stored at a temperature of 0 +/-1 ℃ and a temperature of 54 +/-2 ℃ for 14 days, and is qualified in stability.
Example 3
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 20% of styrylphenol polyoxyethylene ether phosphate, 15% of propylene glycol block polyether, 15% of fatty alcohol polyoxyethylene ether, 7% of isomeric tridecanol polyoxyethylene ether and 43% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application steps of the auxiliary agent in the indoxacarb emamectin benzoate suspending agent product are as follows:
1) mixing 12% of indoxacarb, 4% of emamectin benzoate, 9% of the auxiliary agent, 5% of antifreezing agent ethylene glycol, 0.2% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials, and preparing into suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 2 times by a sand mill to form 4 percent of emamectin benzoate and 12 percent of indoxacarb SC with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate more than 90 percent.
The suspending agent of 4% emamectin benzoate and 12% indoxacarb prepared in the embodiment is a viscous white homogeneous phase suspending liquid, the suspension rate of active ingredients is more than or equal to 90%, the particle size (D90) is less than or equal to 5 mu m, no layering, precipitation and paste formation are caused during cold storage (0 +/-1 ℃) and hot storage (54 +/-2 ℃) for 14 days, and the stability is qualified.
Example 4
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 40% of styryl phenol polyoxyethylene ether phosphate, 5% of propylene glycol block polyether, 5% of fatty alcohol polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether and 45% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this example, the application of the auxiliary agent in the tebufenozide emamectin benzoate suspending agent product comprises the following steps:
1) mixing 8% of tebufenozide, 2% of emamectin benzoate, 5% of the auxiliary agent, 5% of antifreeze glycol, 0.2% of xanthan gum serving as a suspending agent and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials, and preparing into a suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 3 times by a sand mill to form suspension with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate greater than 90%, 2% of emamectin benzoate and 8% of tebufenozide SC.
The suspending agent containing the emamectin benzoate and the tebufenozide 2% and the tebufenozide 8% prepared in the embodiment is a viscous white homogeneous suspending liquid, the suspension rate of active ingredients is more than or equal to 95%, the particle size (D90) is less than or equal to 5 microns, layering, precipitation and paste formation do not occur after cold storage (0 +/-1 ℃) and hot storage (54 +/-2 ℃) for 14 days, and the stability is qualified.
Example 5
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 25% of styrylphenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 5% of fatty alcohol polyoxyethylene ether, 10% of isomeric tridecanol polyoxyethylene ether and 50% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application method of the auxiliary agent in the 5.7% emamectin benzoate suspending agent product includes the following steps:
1) mixing 5.7% of emamectin benzoate, 8% of the auxiliary agent, 5% of antifreeze glycol, 0.2% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, and uniformly dispersing the materials to prepare a suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 2 times by a sand mill to form suspension with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate more than 90 percent and 5.7 percent of emamectin benzoate SC.
The 5.7 percent emamectin benzoate suspending agent prepared in the embodiment is a viscous white homogeneous suspending liquid, the suspension rate of the active ingredients is more than or equal to 90 percent, the particle size (D90) of the particles is less than or equal to 5 mu m, no layering, precipitation and paste formation are caused during cold storage (0 +/-1 ℃) and hot storage (54 +/-2 ℃) for 14 days, and the stability is qualified.
Example 6
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 15% of styryl phenol polyoxyethylene ether phosphate, 15% of propylene glycol block polyether, 15% of fatty alcohol polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether and 50% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application method of the auxiliary agent in the lufenuron-emamectin benzoate suspending agent product comprises the following steps:
1) mixing 2% of emamectin benzoate, 8% of lufenuron, 6% of the auxiliary agent, 5% of antifreezing agent ethylene glycol, 0.1% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials, and preparing into suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 3 times by a sand mill to form suspension with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate more than 90%;
3) and (3) adding the suspension obtained in the step (2) into a reaction kettle, adding 2% of film-forming agent polyacrylamide, 2% of white coloring agent, 0.1% of defoaming agent and the like, and continuously stirring for 1h to obtain the 2% emamectin benzoate and 8% lufenuron suspending agent.
The suspending agent of the 2% emamectin benzoate and the 8% lufenuron prepared in the embodiment is a viscous white homogeneous suspending liquid, the suspension rate of the effective components is more than or equal to 90%, the particle size (D90) of the particles is less than or equal to 5 mu m, no layering, precipitation and paste formation are caused during cold storage (0 +/-1 ℃) and hot storage (54 +/-2 ℃) for 14 days, and the stability is qualified.
Example 7
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 35% of styryl phenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 8% of fatty alcohol polyoxyethylene ether, 7% of isomeric tridecanol polyoxyethylene ether and 40% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application method of the auxiliary agent in the tolfenpyrad emamectin benzoate suspending agent product comprises the following steps:
1) mixing 1% of emamectin benzoate, 6% of tolfenpyrad, 6% of the auxiliary agent, 7% of antifreezing agent ethylene glycol, 0.2% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials, and preparing into suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 2 times by a sand mill to form suspension with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate greater than 90%, 1% of emamectin benzoate and 6% of tolfenpyrad SC.
The suspending agent containing the emamectin benzoate and the tolfenpyrad 6 percent prepared in the embodiment is a viscous white homogeneous phase suspending liquid, the suspension rate of the effective components is more than or equal to 95 percent, the particle size (D90) of the particles is less than or equal to 5 mu m, and the suspending agent has no layering, precipitation and paste formation after being stored at a temperature of 0 +/-1 ℃ and a temperature of 54 +/-2 ℃ for 14 days, and is qualified in stability.
Example 8
An auxiliary agent suitable for a suspending agent containing pesticide emamectin benzoate comprises the following raw materials in percentage by mass: 15% of styryl phenol polyoxyethylene ether phosphate, 25% of propylene glycol block polyether, 10% of fatty alcohol polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether and 45% of water.
In this embodiment, the preparation method of the adjuvant suitable for the suspending agent containing the pesticide emamectin benzoate comprises the following steps:
1) dissolving fatty alcohol-polyoxyethylene ether in water at normal temperature to obtain a solution A;
2) and sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain an auxiliary agent finished product which is viscous in appearance and is suitable for the suspending agent containing the pesticide emamectin benzoate.
In this embodiment, the application method of the auxiliary agent in the chlorantraniliprole emamectin benzoate suspending agent product comprises the following steps:
1) mixing 5% of emamectin benzoate, 15% of chlorantraniliprole, 6% of the auxiliary agent, 7% of antifreeze glycol, 0.2% of xanthan gum serving as a suspending agent and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials to prepare a suspension premix for later use;
2) controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 2 times by a sand mill to form suspension with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate greater than 90%, thereby obtaining the 15% chlorantraniliprole and 5% emamectin benzoate suspending agent.
The suspension of 15% chlorantraniliprole and 5% emamectin benzoate prepared in the embodiment is a viscous white homogeneous suspension, the suspension rate of active ingredients is more than or equal to 95%, the particle size (D90) is less than or equal to 5 mu m, and the suspension does not have layering, precipitation and paste formation after being stored at a temperature of 0 +/-1 ℃ and a temperature of 54 +/-2 ℃ for 14 days, and is qualified in stability.
Comparative example 1
As in example 1, in the manufacturing process of 3% emamectin benzoate SC, the formulation of the adjuvant is: 35% of styryl phenol polyoxyethylene ether phosphate, 8% of fatty alcohol polyoxyethylene ether, 7% of isomeric tridecanol polyoxyethylene ether and 50% of water.
Mixing 3% of emamectin benzoate, 5% of the auxiliary agent, 5% of antifreeze glycol, 0.15% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, mixing the materials, and then dispersing and sanding the materials in a sanding machine, wherein the viscosity of the 3% emamectin benzoate SC preparation is increased in the grinding process and the materials are creamed within 1 hour.
Comparative example 2
As in example 2, in the process of making 2% emamectin benzoate + 10% chlorfenapyr SC, the formulation of the adjuvant is: 35% of styrylphenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 7% of isomeric tridecanol polyoxyethylene ether and 48% of water.
1) Mixing 10% of chlorfenapyr, 2% of emamectin benzoate, 5% of the auxiliary agent, 5% of antifreezing agent ethylene glycol, 0.1% of suspending agent xanthan gum and the balance of water, adding an antifoaming agent accounting for 0.1% of the weight of the auxiliary agent, and uniformly dispersing the materials to prepare the suspension premix.
2) Controlling the temperature below 40 ℃, and continuously sanding the suspension premix obtained in the step 1 for 3 times by a sand mill to form 2 percent of emamectin benzoate and 10 percent of chlorfenapyr SC with the suspension particle size (D90) less than or equal to 5 microns and the suspension rate more than 90 percent.
The finished product of the preparation is placed for 1 day at normal temperature, the precipitation of the preparation is 50 percent, and the raw medicine is settled and creamed.
Comparative example 3
As in example 3, in the preparation of 4% emamectin benzoate + 12% indoxacarb SC, the formulation of the adjuvant was: 35% of styryl phenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 10% of fatty alcohol polyoxyethylene ether, 27% of isomeric tridecanol polyoxyethylene ether and 18% of water.
Mixing indoxacarb 12%, emamectin benzoate 4%, the auxiliary agent 9%, the antifreezing agent ethylene glycol 5%, the suspending agent xanthan gum 0.2% and the balance water, adding the defoaming agent 0.1% of the weight of the auxiliary agent, uniformly dispersing the materials, and pumping the preparation into a sand mill to grind, so that the preparation is pasty.
Claims (9)
1. The auxiliary agent suitable for the suspending agent containing the pesticide emamectin benzoate is characterized by being prepared from the following raw materials in percentage by mass: 1-50% of styryl phenol polyoxyethylene ether phosphate, 1-30% of propylene glycol block polyether, 1-40% of fatty alcohol polyoxyethylene ether, 1-20% of isomeric tridecanol polyoxyethylene ether and 10-50% of water.
2. The auxiliary agent suitable for the suspending agent of the emamectin benzoate as the pesticide according to claim 1, which is prepared from the following raw materials in percentage by mass: 10-40% of styryl phenol polyoxyethylene ether phosphate, 5-30% of propylene glycol block polyether, 5-20% of fatty alcohol polyoxyethylene ether, 5-10% of isomeric tridecanol polyoxyethylene ether and 15-50% of water.
3. The auxiliary agent suitable for the suspending agent of the emamectin benzoate as the pesticide according to claim 1, which is prepared from the following raw materials in percentage by mass: 20-35% of styryl phenol polyoxyethylene ether phosphate, 10-25% of propylene glycol block polyether, 5-15% of fatty alcohol polyoxyethylene ether, 5-19% of isomeric tridecanol polyoxyethylene ether and 28-50% of water.
4. The auxiliary agent suitable for the suspending agent of the emamectin benzoate as the pesticide according to claim 1, which is prepared from the following raw materials in percentage by mass: 30% of styrylphenol polyoxyethylene ether phosphate, 10% of propylene glycol block polyether, 5% of fatty alcohol polyoxyethylene ether, 5% of isomeric tridecanol polyoxyethylene ether and 50% of water.
5. The process for the preparation of the adjuvant for suspension concentrates containing pesticide emamectin benzoate as claimed in any of claims 1 to 4, comprising the steps of:
1) dissolving fatty alcohol-polyoxyethylene ether into water according to a proportion at normal temperature to obtain a solution A;
2) and (3) sequentially adding styrylphenol polyoxyethylene ether phosphate, propylene glycol block polyether and isomeric tridecanol polyoxyethylene ether into the solution A, and uniformly stirring to obtain the high-performance liquid crystal display panel.
6. The method for preparing the auxiliary agent suitable for the emamectin benzoate-containing suspending agent as claimed in claim 5, wherein the amount of the auxiliary agent in the emamectin benzoate-containing suspending agent is 5-9%.
7. The adjuvant for suspending agent containing emamectin benzoate as claimed in claim 6, wherein the adjuvant is used in the amount of 5-6% in the emamectin benzoate suspending agent.
8. Use of an adjuvant according to any one of claims 1 to 4 in the preparation of a suspension concentrate of emamectin benzoate.
9. Use according to claim 8, characterized in that the application of the adjuvant in the suspension product containing emamectin benzoate comprises the following steps: uniformly mixing emamectin benzoate, an auxiliary agent and water according to a ratio, adding a defoaming agent, and uniformly dispersing the materials to prepare a suspension premix; the temperature is controlled below 40 ℃, the obtained suspension premix is ground to form a product containing the emamectin benzoate suspending agent, the suspension particle size is less than or equal to 5 microns, and the suspension rate is more than or equal to 90%.
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