CN101692807B - Dispersible oil suspension agent containing cyproconazole - Google Patents
Dispersible oil suspension agent containing cyproconazole Download PDFInfo
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Abstract
The invention discloses a dispersible oil suspension agent containing cyproconazole. The dispersible oil suspension agent is prepared by effective active compositions including cyproconazole and azoxystrobin and a wetting agent, a dispersant, an emulsifying agent, a thickening agent, a stabilizing agent, an anti-freezing agent, a defoaming agent and non-aqua-system dispersing media, wherein the weight proportions of the compositions include that the cyproconazole ranges from 0.5% to 10%, azoxystrobin ranges from 5% to 30%, the wetting agent ranges from 0.5% to 3%, the dispersant ranges from 0.5% to 8%, the emulsifying agent ranges from 0.5% to 10%, the thickening agent ranges from 1% to 6%, the stabilizing agent ranges from 0.5% to 20%, the anti-freezing agent ranges from 1% to 5%, the defoaming agent ranges from 0.1% to 2% and the rest are the non-aqua-system dispersing media. The two active compositions can be mixed to prepare the dispersible oil suspension agent, thereby preventive effect of the dispersible oil suspension agent is enhanced, effective period is prolonged, and preventive effective of the dispersible oil suspension agent is obviously better than other agents prepared by the active compositions. Besides, the dispersible oil suspension agent is safe to crop and environment, application dose of agents is reduced, cost is saved, and the dispersible oil suspension agent meets the safety requirement of agrochemicals.
Description
Technical field
But the present invention relates to a kind of dispersed oil suspending agent that contains cyproconazole and preparation method thereof, belong to technical field of compounded pesticide.
Background technology
The oils that can disperse oil suspending agent to refer to use not pollute crop is as a kind of formulations of pesticide of carrier, and oils can be vegetable oil and derivative thereof.Oils is taken from natural vegetation, it is as thinner, all friendly to crop and environment, and oils itself has good adhesivity and plate-out ability, easily adhere to wax or smooth blade face, have the advantages such as adhesivity and plate-out ability are good, anti-rain scouring capability is strong, thereby improve the availability of agricultural chemicals, and common pesticides formulation such as wetting powder, pulvis have dust pollution; Missible oil is unfriendly to environment because containing a large amount of organic solvents; Though being countries, water dispersible granules, aqueous suspension agent and aqueous emulsion advocate the environment-friendly pesticide formulation of use.But compare the dispersed oil suspending agent, exist adhesivity and plate-out ability, anti-rain performance of flushing poor, after spraying in the few shortcoming of the liquid hold-up of crop.
Cyproconazole (also claims Cyproconazole, english common name cyproconazole, chemical molecular formula C
15H
18ClN
3O), belong to azoles fungicide, the mechanism of action is for suppressing the sterol demethylation, be used for preventing and treating cereal and coffee rust, cereal, fruit tree and grape powdery mildew, peanut, beet tops pinta, apple scab and peanut white rot, have preventive and therapeutic action, all effective to the Erysiphales on cereal crop (using 80g/ha), coffee (20-50g/ha), beet (40-60g/ha), fruit tree and grape (10g/ha), Uredinales, the mould genus of genus spore, Rhynchosporium spp．, Septoria, Venturia bacterium.Mixed with other bactericide, fine cereal eye spot disease, leaf spot and the net blotch of preventing and treating of energy, the control wheat rust lasting period is 4-6 week, prevents and treats powdery mildew 3-4 week.
Fluoxastrobin (english common name azoxystrobin, chemical molecular formula C
22H
17N
3O
5) be first commercial methoxy acrylic bactericide that Syngenta Co.,Ltd succeeds in developing, efficiently, wide spectrum, nearly all mycota (Ascomycotina, Basidiomycotina, Mastigomycotina and Deuteromycotina) disease such as powdery mildew, rust, glume blight, net blotch, downy mildew, rice blast etc. are all had good activity.Can be used for cauline leaf spraying, seed treatment, also can carry out soil treatment, be mainly used in cereal, paddy rice, peanut, grape, potato, fruit tree, vegetables, coffee, lawn etc., it is a kind of mitochondrial respiratory inhibitor, namely pass through to shift to the electronics of cromoci at cytochrome B cl, thereby suppress mitochondrial breathing.The bacterial strain that 14-demethylation enzyme inhibitor, benzamides, dicarboxylic dihydrazides amine and benzimidazole is produced resistance is effective.Have protection, root out, infiltration, systemic activity.Suppress spore germination and mycelial growth and suppress to produce spore.
At present, compounded preparation of pesticide take cyproconazole and Fluoxastrobin as effective ingredient is succeeded in developing in Italy by first just reaching, bactericide Amistra Xtra (Fluoxastrobin 18.2%+ Cyproconazole 7.3%), its formulation is aqueous suspension agent, this product 2008 registration on beet prevents and treats leaf spot, yellow rust, leaf rust, glume blight on soft, hard wheat.Amistra Xtra is used for cereal in Romania and the U.S., be used for control Asia soybean rust (Phakoprora pachyrhizi) with the registration of Priori Xtra trade name in Brazil, the produce market performance is good, but not yet register and sell in domestic, be the dispersed oil suspending agent report of effective ingredient but also be difficult cyproconazole and Fluoxastrobin, but the inventor is unexpected to be found two active components are mixed and makes the dispersed oil suspending agent and use and can improve its control efficiency, extend its lasting period, be significantly higher than the control efficiency that it makes other formulations, to crop and Environmental security, and can reduce the pharmacy application amount, save cost, therefore cyproconazole and Fluoxastrobin being mixed to make to disperse oil suspending agent will have good marketing prospect.
Summary of the invention
One of purpose of the present invention is to provide a kind of bactericidal effect good, and drug cost is low, but to the dispersed oil suspending agent that contains cyproconazole of crop and Environmental security.
But another object of the present invention is to provide the method for the above-mentioned dispersed oil suspending agent of preparation.
The object of the invention implementation procedure is as follows:
But a kind of dispersed oil suspending agent that contains cyproconazole, contain cyproconazole and Fluoxastrobin, and but wetting agent, dispersant, emulsifier, thickener, stabilizing agent, antifreezing agent, defoamer and non-water system dispersion medium be mixed with the dispersed oil suspending agent, and the percentage by weight of wherein said each component is:
Cyproconazole 0.5～10%
Fluoxastrobin 5～30%
Wetting agent 0.5～3%
Dispersant 0.5～8%
Emulsifier 0.5～10%
Thickener 1～6%
Stabilizing agent 0.5～20%
Antifreezing agent 1～5%
Defoamer 0.1～2%
Non-water system dispersion medium supplies 100%.
The percentage by weight of above-mentioned cyproconazole is preferably 5%～10%, and the percentage by weight of Fluoxastrobin is preferably 12.5%～25%.
Described wetting agent is selected from one or more in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, neopelex, alkylnaphthalene sulfonate, lauryl sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products succinate sodium sulfonate, alkylphenol polyoxyethylene sulfosuccinate disodium.
Described dispersant is selected from one or more in sodium lignin sulfonate, calcium lignosulfonate, alkyl naphthalene formaldehyde condensate sulfonates, polycarboxylate, TERSPERSE 2425.
Described emulsifier is selected from one or more in calcium dodecyl benzene sulfonate, castor oil polyoxyethylene ether, alkylphenol polyoxyethylene formaldehyde condensation products, alkylphenol-polyethenoxy polyethenoxy ether, APEO oleoyl carboxylic ester, alkyl phenol formaldehyde resin polyoxyethylene ether, Span60, polyoxyethylene sorbitan stearate, triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer.
Described thickener is selected from one or more in xanthans, carboxymethyl cellulose, white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate.
Described stabilizing agent is selected from one or more in epoxychloropropane, tributyl phosphate, triphenyl phosphite, epoxidized soybean oil, Sodium Benzoate, sodium sorbate, formaldehyde.
Described antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, urea, mineral salt.
Described defoamer is dimethicone defoamer, Polyether Modified Polysiloxanes Defoaming Agent or polyethers defoamer.
Described non-water system dispersion medium is selected from one or more in soybean oil, corn oil, cottonseed oil, palm oil, linseed oil, turpentine oil, rapeseed oil, methylated vegetable oil, methylated vegetable oil such as methyl oleate.
But the method for preparing above-mentioned dispersed oil suspending agent: active ingredient cyproconazole, Fluoxastrobin and wetting agent, dispersant, emulsifier, thickener, stabilizing agent, antifreezing agent, defoamer and non-water system dispersion medium are mixed, shear through the high speed shear dispersion machine and disperseed 10～30 minutes, through sand mill sand milling 2～3 hours, make particle diameter below 5 microns.
Advantage of the present invention and good effect:
The present invention is scattered in active ingredient cyproconazole and the Fluoxastrobin particle with granular in non-water system dispersion medium, thereby has:
1, compare conventional traditional cream preparation, organic solvent pollution, lightning is high, produces and stores and use safety;
2, compare the water dispersible granules that traditional wetting powder, powder preparation and new development are got up, no dust pollution, the said preparation granularity is trickleer, be more conducive to during spraying on spread crop target, easily adhere to wax or smooth blade face, have the advantages such as adhesivity and plate-out ability are good, anti-rain scouring capability is strong.
3, compare the conventional suspending agent take water as dispersion medium, aqueous emulsion and the microemulsion of using, but dispersed oil suspending agent preparation is take the oils of non-water system as dispersion medium, said preparation dilution spraying, have better adhesivity and plate-out ability, more easily adhere to wax or smooth blade face, anti-rain scouring capability is stronger.
Embodiment
Below in conjunction with embodiment, content of the present invention is described further.
Embodiment 1
take 7.3% cyproconazole, 18.2% Fluoxastrobin, dispersant 3% alkylnaphthalene sulfonate (TERSPERSE2425), emulsifier 2% Span60 (this dish-60#), 2% polyoxyethylene sorbitan stearate (Tween-60 #), wetting agent 1% lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, thickener 2% bentonite, antifreezing agent 5% ethylene glycol, defoamer 0.2% dimethicone defoamer, stabilizing agent 1% epoxychloropropane, non-water system dispersion medium soybean oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, but namely makes 25.5% cyproconazole Fluoxastrobin dispersed oil suspending agent with sand mill sand milling to particle diameter less than 5 microns.
Embodiment 2
take 6% cyproconazole, 15% Fluoxastrobin, dispersant 2% polycarboxylate (TERSPERSE 2700 that U.S. Huntsman Corporation produces), emulsifier 2% Span60 (this dish-60#), 3% castor oil polyoxyethylene ether (BY-125), wetting agent 1% alkylphenol polyoxyethylene sulfosuccinate disodium, thickener 2% aluminium-magnesium silicate, antifreezing agent 4% propane diols, defoamer 0.2% Polyether Modified Polysiloxanes Defoaming Agent (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product company produces), stabilizing agent 10% epoxidized soybean oil, non-water system dispersion medium methyl oleate adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 20min, but namely makes 21% cyproconazole Fluoxastrobin dispersed oil suspending agent with sand mill sand milling to particle diameter less than 5 microns.
Embodiment 3
take 10% cyproconazole, 25% Fluoxastrobin, dispersant 3% alkyl naphthalene formaldehyde condensate sulfonates, emulsifier 2% APEO oleoyl carboxylic ester, 3% castor oil polyoxyethylene ether (BY-110), wetting agent 2% alkylphenol polyoxyethylene formaldehyde condensation products succinate sodium sulfonate, thickener 1% white carbon, 2% bentonite, antifreezing agent 4% glycerine, defoamer 0.3% Polyether Modified Polysiloxanes Defoaming Agent (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product company produces), stabilizing agent 1% sodium sorbate, non-water system dispersion medium corn oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, but namely makes 35% cyproconazole Fluoxastrobin dispersed oil suspending agent with sand mill sand milling to particle diameter less than 5 microns.
Embodiment 4
take 4% cyproconazole, 10% Fluoxastrobin, dispersant 2% sodium lignin sulfonate, 1% alkyl naphthalene formaldehyde condensate sulfonates, emulsifier 2% triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer, 3% castor oil polyoxyethylene ether (BY-140), wetting agent 2% alkylphenol polyoxyethylene phosphate, thickener 1% carboxymethyl cellulose, 1% bentonite, antifreezing agent 4% propane diols, defoamer 0.3% Polyether Modified Polysiloxanes Defoaming Agent (trade name: s-29 Nanjing "four news" (new ideas applied chemistry product company produces), stabilizing agent 2% tributyl phosphate, non-water system dispersion medium cottonseed oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 20min, but namely makes 14% cyproconazole Fluoxastrobin dispersed oil suspending agent with sand mill sand milling to particle diameter less than 5 microns.
Embodiment 5
take 5% cyproconazole, 25% Fluoxastrobin, dispersant 2% sodium lignin sulfonate, 2% polycarboxylate (TERSPERSE 2700 that U.S. Huntsman Corporation produces), emulsifier 2% calcium dodecyl benzene sulfonate, 2% polyoxyethylene sorbitan stearate, 2% castor oil polyoxyethylene ether, wetting agent 2% alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, thickener 2% aluminium-magnesium silicate, 1% bentonite, antifreezing agent 5% ethylene glycol, defoamer 0.5% dimethicone defoamer, stabilizing agent 2% Sodium Benzoate, non-water system dispersion medium linseed oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 25min, but namely makes 30% cyproconazole Fluoxastrobin dispersed oil suspending agent with sand mill sand milling to particle diameter less than 5 microns.
Biological control example 1 is prevented and treated the rice sheath blight disease field control effectiveness test
Prevent and treat rice sheath blight disease and process employing random district group arrangement, residential quarter area 50m with reference to the residential quarter of " field control effectiveness test criterion () GB/T 17980.20-2000 bactericidal agent for preventing and treating rice sheath blight disease " test medicine, contrast medicament and blank
2, repeat for 4 times, investigation state of an illness radix before dispenser, dispenser is when rice tillering infects latter stage, and after dispenser, minutes three times is 7 days, 14 days, 28 days investigation prevention effects.According to rice leaf sheath and blade damage symptom grading, take strain as unit, every residential quarter diagonal is got 5 investigation, and every some investigation is connected five clumps, totally 25 clumps, records total strain number, diseased plant number and sick progression.
Stage division (take blade as unit):
0 grade: complete stool is anosis;
1 grade: quaterfoil and following each leaf sheath, blade morbidity (take sword-like leave as the first blade);
3 grades: the 3rd blade and following each leaf sheath, blade morbidity;
5 grades: the second blade and following each leaf sheath, blade morbidity;
7 grades: sword-like leave blade and following each leaf sheath, blade morbidity;
9 grades: the complete stool morbidity, withered ahead of time.
The drug effect computational methods:
In formula: CK
0, CK
1Be respectively the forward and backward disease index of blank district's dispenser;
PT
0, PT
1Be respectively the forward and backward disease index of chemicals treatment district's dispenser.
Table 1 is prevented and treated the rice sheath blight disease field control effectiveness test
But above-mentioned 25.5% the cyproconazole Fluoxastrobin dispersed oil suspending agent of preventing and treating that rice sheath blight disease field control effectiveness test biological control example 1 uses that embodiment 1 prepares, all the other wetting powders, water dispersible granules, suspending agent, aqueous emulsion, missible oil, microemulsion all use conventional auxiliary agent to adopt the conventional method preparation.
As seen from Table 1, but cyproconazole and Fluoxastrobin are mixed and make the dispersed oil suspending agent rice sheath blight disease is had excellent control efficiency, be significantly higher than the control efficiency that it makes other formulations, extend its lasting period, and to crop and Environmental security, and can reduce the pharmacy application amount, save cost, meet the security requirement of pesticidal preparations, therefore have wide practical use in production.
Claims (3)
1. but dispersed oil suspending agent that contains cyproconazole is characterized in that each component and weight percentage are as follows:
Cyproconazole 0.5～10%
Fluoxastrobin 5～30%
Wetting agent 0.5～3%
Dispersant 0.5～8%
Emulsifier 0.5～10%
Thickener 1～6%
Stabilizing agent 0.5～20%
Antifreezing agent 1～5%
Defoamer 0.1～2%
Non-water system dispersion medium surplus
Described wetting agent is selected from one or more in alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, neopelex, alkylnaphthalene sulfonate, lauryl sodium sulfate, alkylphenol polyoxyethylene formaldehyde condensation products succinate sodium sulfonate, alkylphenol polyoxyethylene sulfosuccinate disodium;
Dispersant is selected from one or more in sodium lignin sulfonate, calcium lignosulfonate, alkyl naphthalene formaldehyde condensate sulfonates, polycarboxylate, TERSPERSE 2425;
Emulsifier is selected from one or more in calcium dodecyl benzene sulfonate, castor oil polyoxyethylene ether, alkylphenol polyoxyethylene formaldehyde condensation products, alkylphenol-polyethenoxy polyethenoxy ether, APEO oleoyl carboxylic ester, alkyl phenol formaldehyde resin polyoxyethylene ether, Span60, polyoxyethylene sorbitan stearate, triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer;
Thickener is selected from one or more in xanthans, carboxymethyl cellulose, white carbon, polyvinyl alcohol, bentonite, aluminium-magnesium silicate;
Stabilizing agent is selected from one or more in epoxychloropropane, tributyl phosphate, triphenyl phosphite, epoxidized soybean oil, Sodium Benzoate, sodium sorbate, formaldehyde;
Antifreezing agent is selected from one or more in ethylene glycol, propane diols, glycerine, urea, mineral salt;
Defoamer is dimethicone defoamer, Polyether Modified Polysiloxanes Defoaming Agent or polyethers defoamer;
Described non-water system dispersion medium is selected from soybean oil, corn oil, cottonseed oil
,One or more in palm oil, linseed oil, turpentine oil, rapeseed oil, methylated vegetable oil.
2. but contain according to claim 1 the dispersed oil suspending agent of cyproconazole, it is characterized in that, the percentage by weight of cyproconazole is 5%～10%, and the percentage by weight of Fluoxastrobin is 12.5%～25%.
3. but method for preparing the described dispersed oil suspending agent of claim 1, it is characterized in that active ingredient cyproconazole, Fluoxastrobin and wetting agent, dispersant, emulsifier, thickener, stabilizing agent, antifreezing agent, defoamer and non-water system dispersion medium are mixed, through shearing dispersion, sand milling, particle diameter is being got final product below 5 microns.
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| US20220248685A1 (en) * | 2019-06-17 | 2022-08-11 | Rhodia Operations | Agrochemical composition comprising particles of silicate and a fungicide |
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| MY195938A (en) | 2015-08-13 | 2023-02-27 | Basf Se | Nanoqueous Pesticide Suspension Comprising a Water Soluble Solvent, an Inorganic Thickener, and an Alkoxylate |
| EP3334277B2 (en) | 2015-08-13 | 2024-02-28 | Basf Se | Nonaqueous pesticide suspension comprising a water soluble solvent, an inorganic thickener, and an alkoxylate |
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