CN111109250A - Metconazole water suspension bactericide capable of adjusting crop physique and preparation method thereof - Google Patents
Metconazole water suspension bactericide capable of adjusting crop physique and preparation method thereof Download PDFInfo
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- CN111109250A CN111109250A CN201811273442.8A CN201811273442A CN111109250A CN 111109250 A CN111109250 A CN 111109250A CN 201811273442 A CN201811273442 A CN 201811273442A CN 111109250 A CN111109250 A CN 111109250A
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
Abstract
The invention discloses a metconazole water suspension bactericide capable of adjusting crop physique, which comprises the following components: 5-70 wt% of metconazole technical material, 1-15 wt% of dispersing agent, 0.1-10 wt% of wetting agent, 0.5-10 wt% of thickening agent, 0.5-10 wt% of antifreezing agent, 0.01-0.3 wt% of regulator, 0.01-3 wt% of preservative, 0.01-0.5 wt% of defoaming agent and the balance of water. The invention overcomes the defects of wettable powder and has the advantages of environmental protection and low use cost. The pesticide preparation has the advantages of reducing the pollution to the environment, improving the safety of users and reducing the use cost of farmers in the processing and using processes, and is the development trend of the current pesticide preparation.
Description
Technical Field
The invention belongs to the technical field of plant sterilization agents, and particularly relates to a metconazole water suspension bactericide which has a good sterilization effect and can properly regulate plant growth and a preparation method thereof.
Background
Metconazole, also known as metconazole, chemical name: 5- (4-chlorophenyl) -2, 2-dimethyl-1- (1,2, 4-triazol-1-ylmethyl) -cyclopentanol. Metconazole is a novel, broad-spectrum systemic fungicide. The function characteristics are as follows: inhibiting the biosynthesis of pathogenic bacteria ergosterol, resulting in the failure of cell membrane formation and the failure of hypha growth, thereby achieving the bactericidal effect. After being sprayed, the bactericide can be quickly absorbed and conducted in two directions to kill invaded pathogenic bacteria and spores, and is a systemic bactericide with prevention and treatment effects. The composition is mainly used for preventing and treating septoria, fusarium graminearum, leaf rust, yellow rust, powdery mildew and glume blight of wheat; barley control of dwarf rust, powdery mildew, coracoid; coracocephalospora and leaf rust of rye, and coronafora is used for preventing and treating crown rust; leaf rust, septoria of triticale (wheat crossed with rye). Has excellent activity on septoria and rust, has excellent protection and treatment effects, and has extremely low dosage and wide range of preventing and treating cereal diseases compared with the traditional bactericide.
At present, metconazole is conventionally processed into wettable powder or missible oil for use. The wettable powder has serious dust drift in the actual use process and has great influence on human bodies and crops. A large amount of organic solvent is used in the missible oil, so that on one hand, resource waste is caused, and on the other hand, the environmental hazard is large. The pesticide suspending agent is prepared by using water as a dispersion medium, carrying out wet superfine grinding on insoluble or slightly water-soluble solid raw pesticide, and uniformly dispersing by virtue of the action of a surfactant and other auxiliaries to form a liquid-solid phase system with good fluidity and stability. Compared with missible oil, the emulsion avoids using a large amount of organic solvent; compared with wettable powder, the wettable powder has no dust drift in the processing and using processes, has lower toxicity and irritation to people and livestock, can avoid the phytotoxicity of dust particles to crops, can not burn in the storage and transportation processes, and has relatively high safety; in addition, the suspending agent has excellent performance, good dispersibility, higher suspension rate, stronger spreading and adhesive force on the surface of the plant body and rain wash resistance; under the system wetting condition, the effective substances can be slowly and effectively spread and distributed for the second time, and the drug effect is obvious and lasting.
Aqueous suspensions are new formulations developed on the basis of wettable powders. The dosage form overcomes the defects of wettable powder, has the advantages of environmental protection, safety, high efficiency and low cost, reduces the pollution to the environment in the processing and using processes, reduces the use cost of farmers, and is a great trend of the technical development of the prior pesticide preparation.
In addition, the existing plant bactericidal drugs in the market have great harm to plants after being used, so that the plants cannot be well produced, and the quality and the yield of crops are influenced. Therefore, it is required to develop a novel bactericide and a preparation method thereof, which can exert a good bactericidal effect on plants, reduce the damage to the plants during growth, and have a certain growth regulating effect to improve the growth quality of crops.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide the metconazole water suspension bactericide which is environment-friendly, safe, low in cost, high in efficiency, good in sterilization effect and capable of properly adjusting plant growth, and aims to overcome the defects of the prior art.
The invention also aims to provide a preparation method of the metconazole water suspension bactericide.
The technical scheme is as follows: the metconazole water suspension bactericide capable of adjusting the crop physique provided by the invention comprises the following components: 5-70 wt% of metconazole technical material, 1-15 wt% of dispersing agent, 0.1-10 wt% of wetting agent, 0.5-10 wt% of thickening agent, 0.5-10 wt% of antifreezing agent, 0.01-0.3 wt% of regulator, 0.01-3 wt% of preservative, 0.01-0.5 wt% of defoaming agent and the balance of water.
Further, the preparation method of the dispersant is as follows:
(11) weighing a certain proportion of alkylphenol polyoxyethylene ether phosphate and polyoxyethylene sorbitan fatty acid ester, placing the alkylphenol polyoxyethylene ether phosphate and the polyoxyethylene sorbitan fatty acid ester into a reactor, adjusting the temperature to 0-20 ℃, and carrying out high-speed shearing and mixing under the condition that the rotating speed is 1500-3000 r/min; stirring for 1-2 h;
(12) adding a polyoxyethylene polyoxypropylene ether segmented copolymer into the system obtained in the step (11), adjusting the temperature to 15-25 ℃, and continuing high-speed shearing and mixing under the condition that the rotating speed is 2000-2500 r/min; stirring for 1-2 h;
(13) and (3) adding a polar solvent, a non-polar solvent or an environment-friendly solvent into the system obtained in the step (12) in a certain proportion, mixing at the rotating speed of 1000-2000 r/min, and stirring for 0.5-1 h to obtain the dispersing agent.
Further, in order to improve the dispersion effect of the dispersant, the polar solvent is selected from one or more of ethanol, ethylene glycol, glycerol, dimethyl sulfoxide or N, N-dimethylformamide; the nonpolar solvent is selected from one or more of sec-butyl acetate, ethyl acetate, toluene and xylene; the environment-friendly solvent is selected from one or more of No. 120 solvent naphtha, No. 150 solvent naphtha and No. 200 solvent naphtha.
Further, in the dispersing agent, the mass ratio of alkylphenol polyoxyethylene ether phosphate, polyoxyethylene sorbitan fatty acid ester and polyoxyethylene polyoxypropylene ether block copolymer is 1: 0.5-1.5: 1-2.
Further, the wetting agent is selected from at least two of triphenylethylene phenol polyoxyethylene ether phosphate sulfonate, triphenylethylene phenol polyoxyethylene ether phosphate triethanolamine salt, triphenylethylene phenol polyoxyethylene ether formaldehyde condensate sulfate, sodium lignosulfonate and calcium lignosulfonate.
Further, the wetting agent is triphenylethylene phenol polyoxyethylene ether phosphate sulfonate and calcium lignosulfonate according to a mass ratio of 1: 0.5-2.
Further, the thickening agent is selected from one or more of xanthan gum, magnesium aluminum silicate, Arabic gum, methylcellulose, carboxymethylcellulose, polyvinyl alcohol and gaseous silicon dioxide.
Further, the defoaming agent is selected from one or more of polyoxypropylene ethylene oxide glycerol ether, polydimethylsiloxane and tributyl phosphate;
the antifreezing agent is one or more selected from ethylene glycol, glycerol monoethyl ether diglycol and urea.
Further, the preservative is selected from one or more of formaldehyde, benzoic acid, sodium benzoate, kasong, potassium sorbate and sodium sorbate;
the regulator is one or more selected from naphthalene acetic acid, brassinolide and gibberellic acid.
The invention also provides a preparation method of the metconazole water suspension bactericide capable of adjusting the crop physique, which comprises the following steps:
(21) weighing water, a regulator and an antifreezing agent according to a formula, and stirring and mixing at 38-43 ℃ to form a uniform mixed solution;
(22) adding a dispersing agent into the system in the step (21), adjusting the temperature to 42-45 ℃, slowly adding one third of the metconazole technical product in the formula amount through a negative pressure system, and keeping the temperature and stirring until the metconazole technical product is uniformly mixed;
(23) adding a certain amount of wetting agent and defoaming agent into the system in the step (22), and shearing, dispersing and mixing by adopting a dispersing and shearing machine under the condition of 1500-3000 r/min;
(24) adding a certain amount of thickening agent and preservative into the system in the step (23), and continuously shearing, dispersing and mixing by adopting a dispersing and shearing machine under the condition of 2000-2500 r/min; slowly dripping a certain amount of defoaming agent in the stirring process;
(25) cooling the system to 0-5 ℃, preserving heat, and circularly wet-grinding the system by using a sand mill until the particle fineness is 1-5 mu m;
(26) adding one third of metconazole technical product in formula amount into the system in the step (25), and shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2000-2500 r/min; then, circularly wet-grinding the mixture by using a sand mill until the particle fineness is 1 to 5 mu m;
(27) adding the residual metconazole technical material with one third of the formula amount into the system in the step (26), and operating according to the method in the step (26), and crushing the material to the particle size of 1-5 mu m; the temperature in the whole sanding process needs to be controlled to be 0-5 ℃; a certain amount of defoaming agent is added in the sanding process to perform defoaming treatment, the metconazole suspension bactericide is obtained after the sanding is finished, the metconazole suspension bactericide is detected, and the metconazole suspension bactericide is packaged after the quality is qualified.
Has the advantages that: (1) the invention overcomes the defects of wettable powder and has the advantages of environmental protection and low use cost. The pollution to the environment is reduced, the safety of users is improved, the use cost of farmers is reduced in the processing and using processes, and the method is the development trend of the current pesticide preparation; (2) by adding the regulator in the scheme, the product can improve the plant activity of crops, improve the absorption and utilization rate of the crops on effective components and improve the stress resistance of the crops while preventing and treating diseases; (3) the metconazole water suspending agent provided by the invention is added with a plurality of different types of auxiliary agents, so that the metconazole water suspending agent has the advantages of high active component content, environmental friendliness, outstanding drug effect, good dispersing performance, stable thermal storage performance and the like, and is excellent in bactericidal activity and outstanding in safety.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples.
Example 1: the metconazole water suspension bactericide capable of adjusting the crop constitution comprises the following components: 9 wt% of metconazole technical material, 2 wt% of dispersing agent, 4 wt% of wetting agent, 0.25 wt% of carboxymethyl cellulose, 0.25 wt% of xanthan gum, 4 wt% of ethylene glycol, 0.01 wt% of naphthylacetic acid, 0.1 wt% of sodium benzoate, 0.1 wt% of polyoxypropylene ethylene oxide glycerol ether and the balance of water.
Further, the preparation method of the dispersant is as follows:
(11) weighing a certain proportion of alkylphenol polyoxyethylene ether phosphate and polyoxyethylene sorbitan fatty acid ester, placing the alkylphenol polyoxyethylene ether phosphate and the polyoxyethylene sorbitan fatty acid ester into a reactor, adjusting the temperature to 15 ℃, and carrying out high-speed shearing and mixing under the condition that the rotating speed is 2800 r/min; stirring for 1.5 h;
(12) adding polyoxyethylene polyoxypropylene ether segmented copolymer into the system in the step (11), adjusting the temperature to 20 ℃, and continuing high-speed shearing and mixing under the condition that the rotating speed is 2300 r/min; stirring for 1.5 h;
(13) and (4) adding N, N-dimethylformamide into the system in the step (12), mixing at the rotation speed of 1500r/min, and stirring for 0.8h to obtain the dispersing agent.
In the dispersing agent, the mass ratio of alkylphenol polyoxyethylene ether phosphate, polyoxyethylene sorbitan fatty acid ester and polyoxyethylene polyoxypropylene ether block copolymer is 1:1: 1.
The wetting agent is triphenylethylene phenol polyoxyethylene ether phosphate sulfonate and calcium lignosulfonate according to a mass ratio of 1: 1.5.
The invention also provides a preparation method of the metconazole water suspension bactericide capable of adjusting the crop physique, which comprises the following steps:
(21) weighing water, a regulator and an antifreeze according to a formula, and stirring and mixing at 40 ℃ to form a uniform mixed solution;
(22) adding a dispersing agent into the system in the step (21), adjusting the temperature to 45 ℃, slowly adding one third of the metconazole technical product in the formula amount through a negative pressure system, and keeping the temperature and stirring until the metconazole technical product is uniformly mixed;
(23) adding a certain amount of wetting agent and defoaming agent into the system in the step (22), and shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2800 r/min;
(24) adding a certain amount of thickening agent and preservative into the system in the step (23), and continuously shearing, dispersing and mixing by adopting a dispersion shearing machine under the condition of 2300 r/min; slowly dripping a certain amount of defoaming agent in the stirring process;
(25) cooling the system to 0-5 ℃, preserving heat, and circularly wet-grinding the system by using a sand mill until the particle fineness is 1-5 mu m;
(26) adding one third of the metconazole technical product in the formula amount into the system in the step (25), and firstly, shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2300 r/min; then, circularly wet-grinding the mixture by using a sand mill until the particle fineness is 1 to 5 mu m;
(27) adding the residual metconazole technical material with one third of the formula amount into the system in the step (26), and operating according to the method in the step (26), and crushing the material to the particle size of 1-5 mu m; the temperature in the whole sanding process needs to be controlled to be 0-5 ℃; a certain amount of defoaming agent is added in the sanding process to perform defoaming treatment, the metconazole suspension bactericide is obtained after the sanding is finished, the metconazole suspension bactericide is detected, and the metconazole suspension bactericide is packaged after the quality is qualified.
The content of active ingredient metconazole is detected to be 9.03 wt%, the pH value is detected to be 6.72, the wet sieve test (passing a 75 mu m sieve) is more than or equal to 98%, and the suspension percentage is as follows: 95%, permanent foaming (1 min): 40ml, residue after pouring: 2.0 wt%, residue after washing: 0.3 percent, qualified low-temperature stability and qualified heat storage stability.
Example 2: the metconazole water suspension bactericide capable of adjusting the crop constitution comprises the following components: 60 wt% of metconazole technical material, 6 wt% of dispersing agent, 8 wt% of wetting agent, 2 wt% of polyvinyl alcohol, 4 wt% of gaseous silicon dioxide, 1 wt% of glycerol, 0.1 wt% of brassinolide, 0.2 wt% of potassium sorbate, 0.2 wt% of polydimethylsiloxane and the balance of water.
Further, the preparation method of the dispersant is as follows:
(11) weighing a certain proportion of alkylphenol polyoxyethylene ether phosphate and polyoxyethylene sorbitan fatty acid ester, placing the alkylphenol polyoxyethylene ether phosphate and the polyoxyethylene sorbitan fatty acid ester into a reactor, adjusting the temperature to 5 ℃, and carrying out high-speed shearing and mixing under the condition that the rotating speed is 1500 r/min; stirring for 1 h;
(12) adding polyoxyethylene polyoxypropylene ether segmented copolymer into the system in the step (11), adjusting the temperature to 15 ℃, and continuing high-speed shearing and mixing under the condition that the rotating speed is 2000 r/min; stirring for 1 h;
(13) and (4) adding sec-butyl acetate into the system in the step (12), mixing at the rotation speed of 1000r/min, and stirring for 0.5h to obtain the dispersing agent.
In the dispersing agent, the mass ratio of alkylphenol polyoxyethylene ether phosphate, polyoxyethylene sorbitan fatty acid ester and polyoxyethylene polyoxypropylene ether block copolymer is 1:0.5: 1.
The wetting agent is triphenylethylene phenol polyoxyethylene ether phosphate sulfonate and calcium lignosulfonate according to the mass ratio of 2.3: 1.7.
The invention also provides a preparation method of the metconazole water suspension bactericide capable of adjusting the crop physique, which comprises the following steps:
(21) weighing water, a regulator and an antifreeze according to a formula, and stirring and mixing at 38 ℃ to form a uniform mixed solution;
(22) adding a dispersing agent into the system in the step (21), adjusting the temperature to 42 ℃, slowly adding one third of the metconazole technical product in the formula amount through a negative pressure system, and keeping the temperature and stirring until the metconazole technical product is uniformly mixed;
(23) adding a certain amount of wetting agent and defoaming agent into the system in the step (22), and shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 1500 r/min;
(24) adding a certain amount of thickening agent and preservative into the system in the step (23), and continuously shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2000 r/min; slowly dripping a certain amount of defoaming agent in the stirring process;
(25) cooling the system to 0-5 ℃, preserving heat, and circularly wet-grinding the system by using a sand mill until the particle fineness is 1-5 mu m;
(26) adding one third of the metconazole technical product in the formula amount into the system in the step (25), and firstly, shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2000 r/min; then, circularly wet-grinding the mixture by using a sand mill until the particle fineness is 1 to 5 mu m;
(27) adding the residual metconazole technical material with one third of the formula amount into the system in the step (26), and operating according to the method in the step (26), and crushing the material to the particle size of 1-5 mu m; the temperature in the whole sanding process needs to be controlled to be 0-5 ℃; a certain amount of defoaming agent is added in the sanding process to perform defoaming treatment, the metconazole suspension bactericide is obtained after the sanding is finished, the metconazole suspension bactericide is detected, and the metconazole suspension bactericide is packaged after the quality is qualified.
The detection shows that the content of active ingredient metconazole is 60.13 wt%, the pH value is 6.91, the wet sieve test (passing a 75 mu m sieve) is more than or equal to 98%, the suspension rate is more than or equal to 90%, the lasting foamability (1min) is less than or equal to 60ml, the residue after pouring is less than or equal to 5.0 wt%, the residue after washing is less than or equal to 0.5%, the low-temperature stability is qualified, and the heat storage stability is qualified.
Example 3: the metconazole water suspension bactericide capable of adjusting the crop constitution comprises the following components: 30 wt% of metconazole technical material, 10 wt% of dispersing agent, 5 wt% of wetting agent, 0.16 wt% of magnesium aluminum silicate, 0.10 wt% of xanthan gum, 8 wt% of glycerol monoethyl ether diglycol, 0.8 wt% of gibberellic acid, 0.4 wt% of cason, 0.5 wt% of tributyl phosphate and the balance of water.
Further, the preparation method of the dispersant is as follows:
(11) weighing a certain proportion of alkylphenol polyoxyethylene ether phosphate and polyoxyethylene sorbitan fatty acid ester, placing the alkylphenol polyoxyethylene ether phosphate and the polyoxyethylene sorbitan fatty acid ester into a reactor, adjusting the temperature to 20 ℃, and carrying out high-speed shearing and mixing under the condition that the rotating speed is 3000 r/min; stirring for 2 hours;
(12) adding polyoxyethylene polyoxypropylene ether block copolymer into the system in the step (11), adjusting the temperature to 25 ℃, and continuing high-speed shearing and mixing under the condition that the rotating speed is 2500 r/min; stirring for 2 hours;
(13) and (4) adding 150# solvent oil into the system in the step (12), mixing at the rotating speed of 2000r/min, and stirring for 1h to obtain the dispersing agent.
In the dispersing agent, the mass ratio of alkylphenol polyoxyethylene ether phosphate, polyoxyethylene sorbitan fatty acid ester and polyoxyethylene polyoxypropylene ether block copolymer is 1:1.5: 2.
The wetting agent is triphenylethylene phenol polyoxyethylene ether phosphate sulfonate and calcium lignosulfonate according to a mass ratio of 4.6: 3.4.
The invention also provides a preparation method of the metconazole water suspension bactericide capable of adjusting the crop physique, which comprises the following steps:
(21) weighing water, a regulator and an antifreeze according to a formula, and stirring and mixing at 43 ℃ to form a uniform mixed solution;
(22) adding a dispersing agent into the system in the step (21), adjusting the temperature to 45 ℃, slowly adding one third of the metconazole technical product in the formula amount through a negative pressure system, and keeping the temperature and stirring until the metconazole technical product is uniformly mixed;
(23) adding a certain amount of wetting agent and defoaming agent into the system in the step (22), and shearing, dispersing and mixing by adopting a dispersing and shearing machine under the condition of 3000 r/min;
(24) adding a certain amount of thickening agent and preservative into the system in the step (23), and continuously shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2500 r/min; slowly dripping a certain amount of defoaming agent in the stirring process;
(25) cooling the system to 0-5 ℃, preserving heat, and circularly wet-grinding the system by using a sand mill until the particle fineness is 1-5 mu m;
(26) adding one third of the metconazole technical product in the formula amount into the system in the step (25), and firstly, shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2000 r/min; then, circularly wet-grinding the mixture by using a sand mill until the particle fineness is 1 to 5 mu m;
(27) adding the residual metconazole technical material with one third of the formula amount into the system in the step (26), and operating according to the method in the step (26), and crushing the material to the particle size of 1-5 mu m; the temperature in the whole sanding process needs to be controlled to be 0-5 ℃; a certain amount of defoaming agent is added in the sanding process to perform defoaming treatment, the metconazole suspension bactericide is obtained after the sanding is finished, the metconazole suspension bactericide is detected, and the metconazole suspension bactericide is packaged after the quality is qualified.
The detection shows that the content of active ingredient metconazole is 30.09 wt%, the PH value is 7.02, the wet sieve test (passing a 75 mu m sieve) is more than or equal to 98%, the suspension rate is more than or equal to 90%, the lasting foamability (1min) is less than or equal to 60ml, the residue after pouring is less than or equal to 5.0 wt%, the residue after washing is less than or equal to 0.5%, the low-temperature stability is qualified, and the heat storage stability is qualified.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The metconazole water suspension bactericide capable of adjusting the crop constitution is characterized by comprising the following components: 5-70 wt% of metconazole technical material, 1-15 wt% of dispersing agent, 0.1-10 wt% of wetting agent, 0.5-10 wt% of thickening agent, 0.5-10 wt% of antifreezing agent, 0.01-0.3 wt% of regulator, 0.01-3 wt% of preservative, 0.01-0.5 wt% of defoaming agent and the balance of water.
2. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 1, which is characterized in that: the preparation method of the dispersant comprises the following steps:
(11) weighing a certain proportion of alkylphenol polyoxyethylene ether phosphate and polyoxyethylene sorbitan fatty acid ester, placing the alkylphenol polyoxyethylene ether phosphate and the polyoxyethylene sorbitan fatty acid ester into a reactor, adjusting the temperature to 0-20 ℃, and carrying out high-speed shearing and mixing under the condition that the rotating speed is 1500-3000 r/min; stirring for 1-2 h;
(12) adding a polyoxyethylene polyoxypropylene ether segmented copolymer into the system obtained in the step (11), adjusting the temperature to 15-25 ℃, and continuing high-speed shearing and mixing under the condition that the rotating speed is 2000-2500 r/min; stirring for 1-2 h;
(13) and (3) adding a polar solvent, a non-polar solvent or an environment-friendly solvent into the system obtained in the step (12) in a certain proportion, mixing at the rotating speed of 1000-2000 r/min, and stirring for 0.5-1 h to obtain the dispersing agent.
3. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 2, which is characterized in that: in the dispersing agent, the mass ratio of alkylphenol polyoxyethylene phosphate, polyoxyethylene sorbitan fatty acid ester and polyoxyethylene polyoxypropylene block copolymer is 1: 0.5-1.5: 1-2.
4. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 1, which is characterized in that: the wetting agent is selected from at least two of triphenylethylene phenol polyoxyethylene ether phosphate sulfonate, triphenylethylene phenol polyoxyethylene ether phosphate triethanolamine salt, triphenylethylene phenol polyoxyethylene ether formaldehyde condensate sulfate, sodium lignosulfonate and calcium lignosulfonate.
5. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 4, which is characterized in that: the wetting agent is triphenylethylene phenol polyoxyethylene ether phosphate sulfonate and calcium lignosulfonate according to a mass ratio of 1: 0.5-2.
6. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 1, which is characterized in that: the thickening agent is selected from one or more of xanthan gum, magnesium aluminum silicate, Arabic gum, methyl cellulose, carboxymethyl cellulose, polyvinyl alcohol and gaseous silicon dioxide.
7. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 1, which is characterized in that: the defoaming agent is selected from one or more of polyoxypropylene ethylene oxide glycerol ether, polydimethylsiloxane and tributyl phosphate;
the antifreezing agent is one or more selected from ethylene glycol, glycerol monoethyl ether diglycol and urea.
8. The metconazole water suspension bactericide capable of adjusting crop constitution according to claim 1, which is characterized in that: the preservative is selected from one or more of formaldehyde, benzoic acid, sodium benzoate, kasong, potassium sorbate and sodium sorbate;
the regulator is selected from compound sodium nitrophenolate, diethylaminoacetate caproate, sodium naphthylacetate, potassium indolebutyrate, gibberellin, triacontanol and brassinolide. One or more of forchlorfenuron.
9. A method for preparing the metconazole water suspension bactericide for adjusting the crop constitution as claimed in claim 1, which is characterized in that: the method specifically comprises the following steps:
(21) weighing water, a regulator and an antifreezing agent according to a formula, and stirring and mixing at 38-43 ℃ to form a uniform mixed solution;
(22) adding a dispersing agent into the system in the step (21), adjusting the temperature to 42-45 ℃, slowly adding one third of the metconazole technical product in the formula amount through a negative pressure system, and keeping the temperature and stirring until the metconazole technical product is uniformly mixed;
(23) adding a certain amount of wetting agent and defoaming agent into the system in the step (22), and shearing, dispersing and mixing by adopting a dispersing and shearing machine under the condition of 1500-3000 r/min;
(24) adding a certain amount of thickening agent and preservative into the system in the step (23), and continuously shearing, dispersing and mixing by adopting a dispersing and shearing machine under the condition of 2000-2500 r/min; slowly dripping a certain amount of defoaming agent in the stirring process;
(25) cooling the system to 0-5 ℃, preserving heat, and circularly wet-grinding the system by using a sand mill until the particle fineness is 1-5 mu m;
(26) adding one third of metconazole technical product in formula amount into the system in the step (25), and shearing, dispersing and mixing by adopting a dispersing shearing machine under the condition of 2000-2500 r/min; then, circularly wet-grinding the mixture by using a sand mill until the particle fineness is 1 to 5 mu m;
(27) adding the residual metconazole technical material with one third of the formula amount into the system in the step (26), and operating according to the method in the step (26), and crushing the material to the particle size of 1-5 mu m; the temperature in the whole sanding process needs to be controlled to be 0-5 ℃; a certain amount of defoaming agent is added in the sanding process to perform defoaming treatment, the metconazole suspension bactericide is obtained after the sanding is finished, the metconazole suspension bactericide is detected, and the metconazole suspension bactericide is packaged after the quality is qualified.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102885055A (en) * | 2012-11-02 | 2013-01-23 | 江苏七洲绿色化工股份有限公司 | Sterilizing composite containing metconazole and trifloxystrobin |
| CN105724393A (en) * | 2016-04-07 | 2016-07-06 | 陕西上格之路生物科学有限公司 | Application of bactericidal compound containing metconazole to preventing wheat scab |
| CN107006485A (en) * | 2017-05-10 | 2017-08-04 | 陕西上格之路生物科学有限公司 | Application of the bactericidal composition containing metconazole on bakanae disease of rice is prevented and treated |
| CN107027769A (en) * | 2017-06-05 | 2017-08-11 | 上海赫腾精细化工有限公司 | A kind of metconazole bactericide and its application |
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2018
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| CN102885055A (en) * | 2012-11-02 | 2013-01-23 | 江苏七洲绿色化工股份有限公司 | Sterilizing composite containing metconazole and trifloxystrobin |
| CN105724393A (en) * | 2016-04-07 | 2016-07-06 | 陕西上格之路生物科学有限公司 | Application of bactericidal compound containing metconazole to preventing wheat scab |
| CN107006485A (en) * | 2017-05-10 | 2017-08-04 | 陕西上格之路生物科学有限公司 | Application of the bactericidal composition containing metconazole on bakanae disease of rice is prevented and treated |
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