CN101897331B - Tebuconazole electrostatic oil agent and preparation method thereof - Google Patents
Tebuconazole electrostatic oil agent and preparation method thereof Download PDFInfo
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- CN101897331B CN101897331B CN 200910113926 CN200910113926A CN101897331B CN 101897331 B CN101897331 B CN 101897331B CN 200910113926 CN200910113926 CN 200910113926 CN 200910113926 A CN200910113926 A CN 200910113926A CN 101897331 B CN101897331 B CN 101897331B
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Abstract
The invention relates to an electrostatic oil agent dosage form with the active ingredient of tebuconazole and a preparation method thereof. The electrostatic oil agent comprises the following components by weight percent: 1.0%-20.0% of tebuconazole, 1.0%-8.0% of conductive agent, 1.0%-10.0% of cosolvent and the balance solvent. The tebuconazole electrostatic oil agent of the invention is convenient to process, has low cost, good drug effect, long duration and high work efficiency, and can reduce the environmental pollution, increase the utilization rate of pesticide, lower the dosage of pesticide and be applicable to electrostatic spraying.
Description
Technical field
The present invention relates to a kind of tebuconazole electrostatic oil agent and preparation method thereof, belong to the pesticidal preparations field.
Background technology
Tebuconazole (tebuconazole) belongs to triazole bactericidal agent, is ergosterol biosynthesis inhibitor.Be used for the seed treatment of Important Economic crop or the efficient germicide of foliage spray, can effectively prevent and treat multiple rust, powdery mildew, net blotch, root rot, the head blight of cereal crop and plant and pass zonate spot etc., the various smut of wheat, barley and oat, the cercospora brown spot of peanut and zonate spot, grape grey mould, powdery mildew, sigatoka etc.
The existing preparation of Tebuconazole mainly contains aqueous emulsion, suspending agent, missible oil, the agent of kind clothing, seed dressing, wetting powder etc.And tebuconazole electrostatic oil agent has no report both at home and abroad.
The organic solvent that electrostatic oil agent is low by the screening volatility, flash-point is high, high to former medicine dissolubility, lower to chemical injury of crops, viscosity is low not to water, generally also not to other organic solvents, but is directly used with electrostatic sprayer during dispenser.Electrostatic spray makes the droplet of each ejection all with electrostatic charge, be easier to be caught by target, higher than general finish deposition, penetrability to target such as plant strain canopy is more superior, therefore efficient especially with economize medicine, it is one of present target hit rate is the highest, environmental pollution the is minimum formulations of pesticide and using method.And not containing the high volatile volatile composition in the droplet, its size does not have significant change with quality from leave facility arrival target process, reduced volatilization and drift.Droplet is tiny and even, meets " biological optimum grain-diameter " requirement, has significantly improved deposition.Electrostatic oil agent directly uses and need not be to water, is specially adapted to water scarcity, damage by disease and insect and belongs to fulminant and occur that area is large, occasion that must dispenser on a large scale in the short time.
The electrostatic spray technology is that applying high voltage static is set up an electrostatic field between shower nozzle and spraying target, and agricultural chemicals liquid is flowed through after the shower nozzle atomizing, filled with electric charge by different charging methods, form colony's charged droplets, then under the synergy of electrostatic field force and other external force, droplet is done directed movement and is adsorbed on each position of target, reaches the good performances such as deposition efficiency is high, float of mist droplet scatters and disappears less, improve the ecological environment.Atomization of liquid mechanism more complicated under the electrostatic field, it has been generally acknowledged that: electrostatic interaction can reduce surface tension of liquid, reduces the resistance that atomizes, simultaneously, repulsive interaction generation between the same sex electric charge additional external and internal pressure opposite with surface tension is poor, thereby improves fogging degree.
The droplet charging has three kinds of modes: (1) corona charging method, utilize the electrostatic high-pressure corona to make droplet charged; (2) contact mise-a-la-masse method directly places liquid to the static high voltage, is Charged Droplet after the nozzle ejection; (3) inductive charging method is externally under the voltage electric field action, utilizes the electric field between electrode and medical liquid jet to make droplet charged.
The electrostatic spray technology has the following advantages:
1. electrostatic spray has the effect of outflanking, point effect, penetration effect, and even to the target vegetation, deposition is high.The droplet that electrostatic spray forms is with same sex electric charge, in spatial movement, mutually repel, do not condense, the induction of Charged Droplet makes the outside of crop produce the charges of different polarity, under the effect of electric field force, the droplet quick adsorption has improved the deposition of agricultural chemicals on the target crop to the positive and negative of crop, has improved the uniformity of agricultural chemicals deposition.Agricultural chemicals improves more than 36% than conventional spraying at the deposition on the crop surface, and leaf back side agricultural chemicals deposition is tens times of conventional spraying, and crop top, middle part and root agricultural chemicals deposition distributing homogeneity all are significantly increased.More much lower than conventional spraying at the deposition that vegetable protecting field adopts electrostatic spray, droplet to drop on the electrical insulator plastic film, can improve the deposition of droplet on plant, effectively utilize agricultural chemicals, reduce drift and be deposited in loss on the plastic film.
2. improve the availability of agricultural chemicals, reduce the usage amount of agricultural chemicals, reduce cost accounting.The electrostatic spray droplet size generally about 45 μ m, can reduce mist droplet particle size effectively, improves the spectrum of fog drop uniformity, meets biological optimum grain-diameter theoretical, is easy to be caught by target.When electrostatic potential was 20KV, mist droplet particle size reduced approximately 10%, and the spectrum of fog drop uniformity improves approximately 5%.Significantly increase the chance that droplet contacts with damage by disease and insect, improved exponentially extermination of disease and insect pest effect (improving more than 2 times than conventional spraying under the similarity condition).And finish has affinity to insect body wall, is easy to penetrate body wall and enters in the pest body, and insect is poisoned fast.Dosage is saved more than 30% than conventional spraying.
3. little to water source, environmental influence, reduced the pollution of agricultural chemicals to environment.The electrostatic spray spouting liquid is few, and every mu only is 60～150mL, only is more than one percent of conventional spraying, and the suction-operated of electric field force reduced the drift of agricultural chemicals, makes the agricultural chemicals availability high, has avoided the agricultural chemicals loss, has reduced the pollution of agricultural chemicals to environment.
4. the electrostatic spray lasting period is long.Charged Droplet is high adsorption capacity on crop, and comprehensively evenly, dispenser efficient is high, and it is firm that agricultural chemicals adheres at leaf, resistance of rainwater washing against, and the high boiling solvent in the finish can effectively delay the degraded of pesticide active ingredient, and drug effect is permanent.
5. work efficiency is high, and control in time.The hand-held electrostatic ultra low volume spray improves 10～20 times of work efficiency than conventional spraying, and Dongfanghong-18 type power knapsack electrostatic sprayer per hour can spray 20～30 mu.
6. electrostatic spray adopts supporting electrostatic oil agent, need not to add water, is particularly suitable for the drought and water shortage area and uses.
7. electrostatic spray is difficult for producing poisoning to crop, without obviously residual, can improve the quality of crop.
Summary of the invention
The purpose of this invention is to provide a kind of electrostatic oil agent preparation take Tebuconazole as active ingredient.
Another object of the present invention provides the preparation method of described this finish.
This electrostatic oil agent comprises that effective composition quality mark is Tebuconazole 1.0%～20.0%, is preferably 5.0%～15.0%.In addition, this electrostatic oil agent also comprises conductive agent 1.0%～8.0%, cosolvent 1.0%～10.0%, and surplus is solvent.
The cosolvent that is fit to is selected from C
4Above alcohols, for example n-butanol, n-amyl alcohol, n-octyl alcohol, phenmethylol, cyclohexanone, methyl-sulfoxide, 1-METHYLPYRROLIDONE etc., preferred n-butanol, n-octyl alcohol and 1-METHYLPYRROLIDONE.
The conductive agent that is fit to is anion surfactant, such as neopelex, calcium dodecyl benzene sulfonate etc.
The solvent that is fit to is many Fluhyzons, such as line oil, two wires wet goods, heavy aromatics, vegetable oil such as turpentine oil or cottonseed oil, corn wet goods.Preferred two wires oil, the above aromatic hydrocarbons of C10.
Electrostatic oil agent of the present invention adopts active ingredient and conductive agent, cosolvent, solvent is fully mixed and forms.
The target crop that is fit to is the cereal crops such as wheat, barley, oat, the economic crops such as soybean, peanut, the vegetable crops such as tomato, eggplant, capsicum, lettuce, celery, wild cabbage, Kidney bean, broad bean, cowpea, pea, the ground family crops such as cucumber, pumpkin, watermelon, the solanaceous crops such as tobacco, potato, the fruit tree crops such as grape, banana.
The disease that is fit to control has cereal crops disease such as the various smut of Cereal, multiple rust, powdery mildew, net blotch, root rot, head blight and plants biography zonate spot, wheat sharp eyespot, rice green smut, rice blast, bakanae disease, damping off etc.Economic crops disease such as leaf spot of peanut, brown spot and zonate spot, soybean rust, sclerotinia rot of colza, tea tree tea gall.Fruit diseases such as pear scab, alternaria leaf spot of apple, zonate spot, grey mould fruit rot of strawberry, peach brown rot, grape grey mould, maize ear rot, anthrachose of grape, powdery mildew, sigatoka etc.Vegetable disease such as cabbage alternaria, balsam pear powdery mildew, asparagus bean rust.
The method for optimizing of using electrostatic oil agent of the present invention is the static ultra low volume spraying, and a situation arises determines suitable consumption according to controlling object, and formulation rate is 75～150g a.i./hm usually
2
Electrostatic oil agent of the present invention is easy to process, with low cost, good drug efficacy, holding effect is long, work efficiency is high, can reduce environmental pollution, improves the agricultural chemicals availability, reduces the agricultural chemicals usage amount, is suitable for electrostatic spray.
Embodiment
The present invention describes with the following example, but does not limit the scope of the invention.
Embodiment 1:1% tebuconazole electrostatic oil agent
Tebuconazole 1.0kg
N-octyl alcohol 2.0kg
Calcium dodecyl benzene sulfonate 2.0kg
Two wires oil complements to 100kg.
Original Tebuconazole dissolves fully with cosolvent, solvent, adds other compositions again, evenly mixes, and namely is made into electrostatic oil agent after fully stirring.
Step according to identical with embodiment 1 can prepare following examples.
Embodiment 2:5% tebuconazole electrostatic oil agent
Tebuconazole 5.0kg
N-butanol 3.0kg
Calcium dodecyl benzene sulfonate 3.0kg
C10 aromatic hydrocarbons complements to 100kg.
Embodiment 3:10% tebuconazole electrostatic oil agent
Tebuconazole 10.0kg
N-octyl alcohol 4.0kg
Neopelex 5.0kg
C10 aromatic hydrocarbons complements to 100kg.
Embodiment 4:10% tebuconazole electrostatic oil agent
Tebuconazole 10.0kg
1-METHYLPYRROLIDONE 4.0kg
Calcium dodecyl benzene sulfonate 5.0kg
Two wires oil complements to 100kg.
Embodiment 5:15% tebuconazole electrostatic oil agent
Tebuconazole 15.0kg
1-METHYLPYRROLIDONE 8.0kg
Neopelex 6.0kg
C10 aromatic hydrocarbons complements to 100kg.
Embodiment 6:20% tebuconazole electrostatic oil agent
Tebuconazole 20.0kg
1-METHYLPYRROLIDONE 10.0kg
Neopelex 8.0kg
C10 aromatic hydrocarbons complements to 100kg.
Prepared tebuconazole electrostatic oil agent outward appearance is transparent homogeneous oily liquids; The low-temperature phase capacitive is good, and under-5 ℃, refrigeration 7d is crystallization or suspension not; Volatility is low, filter paper suspension method measurement result, and volatility is lower than 30%; To plant safety, without poisoning; The employing method of remaining silent is measured, and flash-point is greater than 70 ℃; Viscosity is below 10mPas; Electrical conductivity (μ Ω cm
-1) 1～10
-3Between.
Claims (4)
1. tebuconazole electrostatic oil agent is characterized in that it comprises following component by weight percentage:
Tebuconazole 1.0%～20.0%;
Conductive agent is selected from anion surfactant: neopelex or calcium dodecyl benzene sulfonate 2.0%～8.0%;
Cosolvent is selected from the above alcohols of C4, cyclohexanone, methyl-sulfoxide, or 1-METHYLPYRROLIDONE 2.0%～10.0%;
Solvent is selected from many Fluhyzons, heavy aromatics, vegetable oil, or two wires oil surplus.
2. tebuconazole electrostatic oil agent according to claim 1 is characterized in that it comprises following component by weight percentage:
Tebuconazole 5.0%～15.0%;
Conductive agent is selected from anion surfactant: neopelex or calcium dodecyl benzene sulfonate 2.0%～5.0%;
Cosolvent is selected from the above alcohols of C4, cyclohexanone, methyl-sulfoxide, or 1-METHYLPYRROLIDONE 2.0%～8.0%;
Solvent is selected from many Fluhyzons, heavy aromatics, vegetable oil, or two wires oil surplus.
3. tebuconazole electrostatic oil agent according to claim 1 and 2, it is characterized in that: wherein, cosolvent is n-octyl alcohol, n-butanol or 1-METHYLPYRROLIDONE.
4. tebuconazole electrostatic oil agent according to claim 1 and 2 is characterized in that: solvent is the above aromatic hydrocarbons of C10 or two wires oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910113926 CN101897331B (en) | 2009-03-18 | 2009-03-18 | Tebuconazole electrostatic oil agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910113926 CN101897331B (en) | 2009-03-18 | 2009-03-18 | Tebuconazole electrostatic oil agent and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101897331A CN101897331A (en) | 2010-12-01 |
| CN101897331B true CN101897331B (en) | 2013-05-01 |
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| CN 200910113926 Active CN101897331B (en) | 2009-03-18 | 2009-03-18 | Tebuconazole electrostatic oil agent and preparation method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107853318A (en) * | 2017-11-30 | 2018-03-30 | 江苏省农业科学院 | A kind of electrostatic oil agent and its application for preventing and treating water rice hopper and banded sclerotial blight |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058505A (en) * | 1991-09-14 | 1992-02-12 | 中国国际科技促进会保康新技术研究所 | The prescription of electrostatically sprayed pesticide oil preparation |
| CN1631158A (en) * | 2003-12-24 | 2005-06-29 | 上海农乐生物制品股份有限公司 | Chlorpyrifos-dimehypo water emulsion and preparation thereof |
-
2009
- 2009-03-18 CN CN 200910113926 patent/CN101897331B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058505A (en) * | 1991-09-14 | 1992-02-12 | 中国国际科技促进会保康新技术研究所 | The prescription of electrostatically sprayed pesticide oil preparation |
| CN1631158A (en) * | 2003-12-24 | 2005-06-29 | 上海农乐生物制品股份有限公司 | Chlorpyrifos-dimehypo water emulsion and preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| 周增强等.戊唑醇及其复配剂防治苹果轮纹病的田间药效试验.《中国农学通报》.2003,第19卷(第1期),第114-116页. * |
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Effective date of registration: 20201125 Address after: 215228, No. two, No. 1188, West Ring Road, Shengze Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Shengze science and Technology Pioneer Park Development Co.,Ltd. Address before: 530007, No. 1, west section, Chuangxin Road, Nanning, the Guangxi Zhuang Autonomous Region Patentee before: Guangxi Tianyuan Biochemical Co.,Ltd. |
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