CN101317563A - Difenoconazole-propiconazole aqueous emulsion - Google Patents
Difenoconazole-propiconazole aqueous emulsion Download PDFInfo
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- CN101317563A CN101317563A CNA2008100295962A CN200810029596A CN101317563A CN 101317563 A CN101317563 A CN 101317563A CN A2008100295962 A CNA2008100295962 A CN A2008100295962A CN 200810029596 A CN200810029596 A CN 200810029596A CN 101317563 A CN101317563 A CN 101317563A
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- difenoconazole
- aqueous emulsion
- propiconazole
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Abstract
The invention relates to aqueous emulsion of two bactericides of wide range, in particular to the difenoconazole and propiconazole aqueous emulsion, which belongs to the field of bactericide. The aqueous emulsion of the invention aims at overcoming the shortages that the difenoconazole and the propiconazole are separately used; meanwhile, in order to overcome the shortage of the emulsifiable solution preparation, the aqueous emulsion of the invention takes the difenoconazole and the propiconazole as basic components and uses the water as dispersion medium, thus forming a uniform and flowable aqueous emulsion by the action of addition agent and by the high shearing and dispersing of a homogenizer. The aqueous emulsion of the invention has the advantages that the production process is simple and easy for operation; the product has stable quality, good dispersion performance, good extension performance and strong adhesion performance on the surface of plants, resists the washing of rainwater and has obvious and durable efficacy. By the water-borne modification, the dosage of organic solvent is greatly reduced, and the toxicity and cost for production and usage are reduced, thus being beneficial to protecting the ecological environment. The aqueous emulsion has high efficiency, wide range, low toxicity, safety and economy, which is suitable for the disease control for a plurality of important crops such as paddy, wheat, bananas, etc.
Description
Technical field:
Difenoconazole propiconazole emusion in water of the present invention belongs to the bactericide field, relates to the aqueous emulsion of two kinds of broad-spectrum germicides, is suitable for preventing and treating multiple important crop pests such as paddy rice, wheat and banana.
Background technology:
Difenoconazole and propiconazole are triazole bactericidal agent, and all have protection and therapeutic action.But still there is evident difference both control spectrums and aspects such as the scope of application and dosage.Propiconazole is mainly used in diseases such as preventing and treating sigatoka, root rotof flax, banded sclerotial blight, rust and powdery mildew.And the Difenoconazole range of application is more extensive, and especially leaf spot, anthracnose, the scab to various crops all has excellent control efficiency, and can leaf surface treatment or seed treatment.The update search pertinent literature sees that Difenoconazole and propiconazole compound have suspending agent (SC), missible oil (EC) and water dispersible granules (WG), and two kinds of former medicine mixed ratios mostly are 1: 1.Described suspending agent of update search pertinent literature (SC) and water dispersible granules (WG) and aqueous emulsion are all the environment-friendly type formulation, but the above two technology makes all than the aqueous emulsion complexity, and energy consumption is also big than aqueous emulsion.Cream preparation then need be bigger with a large amount of organic solvents and toxicity, both increased to produce and use cost, is unfavorable for again preserving the ecological environment.
Summary of the invention:
The purpose that the present invention proposes the Difenoconazole propiconazole emusion in water is to overcome the existing shortcoming of using Difenoconazole and propiconazole separately, further enlarges its range of application and reaches the effect of Synergistic.Simultaneously,,, significantly reduce the consumption of organic solvent, reduce toxicity and production and use cost, and help preserving the ecological environment by Water-borne modification in order to overcome the shortcoming of cream preparation.
Technical scheme of the present invention is: with Difenoconazole and propiconazole is solvent, and water is as dispersion medium, by the effect of auxiliary agent, and disperses to form even flowable aqueous emulsion through the homogenizer high shear.
A kind of Difenoconazole propiconazole emusion in water of the present invention, its component and percentage by weight are:
Difenoconazole (pure medicine) 2～50%
Propiconazole (pure medicine) 2～50%
Solvent 3～12%
Emulsifier 2～12%
Defoamer 0.1～3.0%
Antifreezing agent 0.5～3.0%
Thickener 0～2.5%
Running water or ionized water add to 100.00%
Above-mentioned all components sum is absolutely.
Above-mentioned Difenoconazole propiconazole emusion in water, said emulsifier are the mixture of phenylalkyl phenol polyethenoxy ether formaldehyde condensation products and alkyl benzene calcium sulfonate.
Above-described Difenoconazole propiconazole emusion in water, said solvent are the single or use that is mixed in twos of toluene, acetone, cyclohexanone.
Above-mentioned Difenoconazole propiconazole emusion in water, said thickener are polyvinyl alcohol or xanthans.
Above-mentioned Difenoconazole propiconazole emusion in water, said antifreezing agent are glycerine or ethylene glycol.
Above-described Difenoconazole propiconazole emusion in water, said defoamer are organic silicone oil or isooctanol.
Preparation method of the present invention: take by weighing required former medicine and emulsifier by prescription, place container (enamel still), be stirred to and be mixed into oil phase; Other puts into another container (enamel still) with the running water or the ionized water metering of formula ratio, and adds other auxiliary agent in the prescription, disperses with homogenizer, gets water soluble mixt behind the mixing; Under the high shear situation of 4000-5000r/min, oil phase is slowly added aqueous phase, after adding finishes, continue about 30 minutes of high shear, promptly get product.
The Ben Mingfa advantage is: production technology is fairly simple, easy operating, constant product quality, dispersiveness and plate-out ability are good, and the ability that sticks to the plant corpus surface is more intense, resistance of rainwater washing against, drug effect is a kind of efficient, wide spectrum, safety low-poison and both economical bactericide relatively significantly and lasting.
And different with missible oil commonly used, the present invention is a dispersion medium with water, than cream preparation lot of superiority is arranged, and can reduce organic solvent widely, and has reduced the toxicity to people and animals significantly, has saved petroleum resources, and has helped preserving the ecological environment.Its steady quality, function admirable, drug effect are significantly and relatively lastingly, use cost but can obviously reduce, and production-increasing function is also relatively significantly.Simultaneously, help delaying drug-fast generation and the development of pathogen, prolong its service life bactericide.
Aqueous emulsion synergy ratio of the present invention (SR) 〉=1.5 has obvious role in synergism (seeing Table 1)
Table 125% Difenoconazole propiconazole (2: 3) aqueous emulsion is to suppressing
The toxicity test of Rhizoctonia solani Kuhn mycelial growth
Aqueous emulsion of the present invention shows that in the result of pot experiment drug effect obviously is better than liking seedling (30% Difenoconazole phenyl ring azoles missible oil) during low concentration (20mg/L or 40mg/L), and when higher concentration (80mg/L), both drug effects are suitable.(seeing Table 2)
Table 225% Difenoconazole propiconazole (2: 3) aqueous emulsion is prevented and treated effect (pot experiment) table of comparisons of rice sheath blight disease
The range of application of aqueous emulsion of the present invention is quite extensive, as wheat, paddy rice, peanut, beet, banana, grape, apple, pears, various vegetables and flowers and ornamental plants etc.When being applied to a certain crop, then can doublely simultaneously control concurrent popular multiple diseases, have characteristics efficient, wide spectrum.Thereby in use, can reduce effective dosage significantly, and significantly reduce the pollution of agricultural chemicals, and reduced use cost ecotope, help increasing output and income.
Aqueous emulsion toxicological security of the present invention is evaluated as low toxicity level (seeing Table 3).
Table 3 present composition toxicity test
Embodiment:
Embodiment 1
The preparation method: take by weighing required former medicine and emulsifier by prescription, place container (enamel still), with homogenizer high shear (rotating speed is about 2000r/min) stir about 30min, about 25 ℃ of temperature controls are mixed into oil phase; In addition the water metering of formula ratio is put into another container (enamel still) and added other auxiliary agent of prescription, disperse with homogenizer, behind the mixing, under homogenizer (rotating speed is 4000-5000r/min) high shear situation, oil phase is slowly added aqueous phase, after adding finishes, continue to keep above-mentioned rotating speed high shear 30-60min, promptly get product.
Embodiment 2
The preparation method is identical with embodiment.
Claims (6)
1, a kind of Difenoconazole propiconazole emusion in water, its component and percentage by weight are:
Difenoconazole (pure medicine) 2～50%
Propiconazole (pure medicine) 2～50%
Solvent 3～12%
Emulsifier 2～12%
Defoamer 0.5～3.0%
Antifreezing agent 0.5～3.0%
Thickener 0～2.5%
Running water or ionized water add to 100.00%
Above-mentioned all components sum is absolutely.
2, a kind of Difenoconazole propiconazole emusion in water according to claim 1 is characterized in that emulsifier is the mixture of phenylalkyl phenol polyethenoxy ether formaldehyde condensation products and alkyl benzene calcium sulfonate.
3, a kind of Difenoconazole propiconazole emusion in water according to claim 1 is characterized in that described solvent is the single or use that is mixed in twos of toluene, acetone, cyclohexanone.
4, a kind of Difenoconazole propiconazole emusion in water according to claim 1 is characterized in that described thickener is polyvinyl alcohol or xanthans.
5, a kind of Difenoconazole propiconazole emusion in water according to claim 1 is characterized in that described antifreezing agent is glycerine or ethylene glycol.
6, a kind of Difenoconazole propiconazole emusion in water according to claim 1 is characterized in that described defoamer is organic silicone oil or isooctanol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100295962A CN101317563A (en) | 2008-07-21 | 2008-07-21 | Difenoconazole-propiconazole aqueous emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100295962A CN101317563A (en) | 2008-07-21 | 2008-07-21 | Difenoconazole-propiconazole aqueous emulsion |
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| Publication Number | Publication Date |
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| CN101317563A true CN101317563A (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100295962A Pending CN101317563A (en) | 2008-07-21 | 2008-07-21 | Difenoconazole-propiconazole aqueous emulsion |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102057923A (en) * | 2011-01-06 | 2011-05-18 | 北京燕化永乐农药有限公司 | Germicide composition |
| CN102090399A (en) * | 2009-12-14 | 2011-06-15 | 联合国南通农药剂型开发中心 | Bactericide composition |
| CN101632359B (en) * | 2009-08-17 | 2012-09-05 | 青岛星牌作物科学有限公司 | Sterilization combination for preventing and curing pear scab and aqueous emulsion thereof and preparation method thereof |
| CN102119691B (en) * | 2010-01-08 | 2013-01-23 | 南京华洲药业有限公司 | Bactericidal composition containing fluazinam and difenoconazole and application of same |
| CN101601390B (en) * | 2009-05-11 | 2013-03-27 | 江苏克胜集团股份有限公司 | Difenoconazole and propiconazole emusion in water and preparation method thereof |
| CN103518736A (en) * | 2013-09-10 | 2014-01-22 | 江苏长青农化股份有限公司 | Difenoconazole and propiconazole suspension concentrate emulsion |
| CN104839170A (en) * | 2015-04-15 | 2015-08-19 | 王盼盼 | Sterilization agent for removing crisp pear calyxes and preventing diseases and insect pests caused by fungi |
-
2008
- 2008-07-21 CN CNA2008100295962A patent/CN101317563A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601390B (en) * | 2009-05-11 | 2013-03-27 | 江苏克胜集团股份有限公司 | Difenoconazole and propiconazole emusion in water and preparation method thereof |
| CN101632359B (en) * | 2009-08-17 | 2012-09-05 | 青岛星牌作物科学有限公司 | Sterilization combination for preventing and curing pear scab and aqueous emulsion thereof and preparation method thereof |
| CN102090399A (en) * | 2009-12-14 | 2011-06-15 | 联合国南通农药剂型开发中心 | Bactericide composition |
| CN102119691B (en) * | 2010-01-08 | 2013-01-23 | 南京华洲药业有限公司 | Bactericidal composition containing fluazinam and difenoconazole and application of same |
| CN102057923A (en) * | 2011-01-06 | 2011-05-18 | 北京燕化永乐农药有限公司 | Germicide composition |
| CN103518736A (en) * | 2013-09-10 | 2014-01-22 | 江苏长青农化股份有限公司 | Difenoconazole and propiconazole suspension concentrate emulsion |
| CN104839170A (en) * | 2015-04-15 | 2015-08-19 | 王盼盼 | Sterilization agent for removing crisp pear calyxes and preventing diseases and insect pests caused by fungi |
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Open date: 20081210 |