CN101743952B - Imidacloprid electrostatic oil solution - Google Patents
Imidacloprid electrostatic oil solution Download PDFInfo
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- CN101743952B CN101743952B CN 201010045648 CN201010045648A CN101743952B CN 101743952 B CN101743952 B CN 101743952B CN 201010045648 CN201010045648 CN 201010045648 CN 201010045648 A CN201010045648 A CN 201010045648A CN 101743952 B CN101743952 B CN 101743952B
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Abstract
The invention provides an electrostatic oil solution with imidacloprid as an effective constituent, which comprises the following components in parts by weight: 0.1-20.0 parts of imidacloprid, 1.0-10.0 parts of conductive agents, 2.0-3.0 parts of surfactants, 42.0-96.9 parts of solvent. The electrostatic oil solution has the advantages of easy processing, low cost, good pesticide effect, long persistent effect and high work efficiency, can reduce environmental pollution, improve the use ratio of pesticides, and reduce pesticide consumption, and is suitable for electrostatic spraying.
Description
Technical field
The present invention relates to a kind of imidacloprid electrostatic oil solution, belong to the pesticidal preparations field.
Background technology
Imidacloprid (Imidacloprid) is nicotinic insecticide, acts on the nicotinic acid nAChR ligands, disturbs the pest movements nervous system that chemical signal is transmitted malfunctioning, without the cross resistance problem.Have wide spectrum, efficient, low toxicity, low-residual, insect is difficult for producing resistance, to people, animal, plant and natural enemies security characteristics, and have tag, stomach toxicity and interior suction multiple action.Imidacloprid can be widely used in paddy rice, cotton, fruit tree, vegetables and tea, prevent and treat various plant hoppers, aphid, thrips, trialeurodes vaporariorum, Bemisia tabaci, leafhopper class sucking pest, the insect that conventional pesticides has been produced resistance has remarkable control efficiency, is one of optimal nicotinoids product of control tobacco aphid.
But the existing preparation of Imidacloprid mainly contains missible oil, pulvis, wetting powder, seed treatment dispersion powder, granule, soluble thick agent and soluble concentrate.And imidacloprid electrostatic oil solution has no report both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of electrostatic oil agent preparation take Imidacloprid as active ingredient.
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 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 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 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 is placed in 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, mutually repel in spatial movement, 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 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 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 similarity condition).And finish has affinity to insect body wall, is easy to penetrate body wall and enters in pest body, makes insect poisoning 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 is only 60～150mL, is only 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 on leaf, resistance of rainwater washing against, and the high boiling solvent in 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 drought and water shortage area use.
7. electrostatic spray is difficult for producing poisoning to crop, without obviously residual, can improve the quality of crop.
The technical solution used in the present invention is: prepare the electrostatic oil agent preparation take Imidacloprid as active ingredient.
This electrostatic oil agent comprises the component of following weight proportion:
0.1 part～20.0 parts of Imidacloprids
1.0 parts～10.0 parts of conductive agents
1.0 parts～25.0 parts of cosolvents
2.0 parts～3.0 parts, surfactant
42.0 parts～96.9 parts of solvents.
The above composition weight proportion optimization:
1.0 parts～10.0 parts of Imidacloprids
1.0 parts～8.0 parts of conductive agents
2.0 parts～15.0 parts of cosolvents
2.0 parts～3.0 parts, surfactant
64.0 parts～94.0 parts of solvents.
Described Imidacloprid is 1-(6 chloro-3-pyridyl ylmethyl)-N-Nitroimidazoline-2-base amine, as active component.
Described solvent adopts No. two, No. three (many alkyl-substituted aromatic hydrocarbons of aromatic hydrocarbons, boiling point is more than 200), one or both the combination in methyl naphthalene, o-dichlorohenzene, chlorobenzene, n-butanol, n-octyl alcohol, diethylene glycol (DEG), triethylene glycol, propane diols, atoleine, white oil, castor oil or turpentine oil, preferred o-dichlorohenzene, methyl naphthalene, the above aromatic hydrocarbons of C10.
The combination of one or both in described cosolvent employing 1-METHYLPYRROLIDONE, methyl-sulfoxide or DMF, preferred 1-METHYLPYRROLIDONE, methyl-sulfoxide.
Described conductive agent adopts anion surfactant, as one or both combination of neopelex or calcium dodecyl benzene sulfonate.
Described surfactant adopts one or both combination of fatty alcohol-polyoxyethylene ether (as AEO-5), OPEO (as OP-7), polyoxyethylene nonylphenol ether (as NP-10), single oleic acid sorbitan ester (as span).
The present invention can also add known synergist, stabilizing agent or carry out compositely with other effective active composition, can significantly improve the drug effect of imidacloprid electrostatic oil solution.
Imidacloprid electrostatic oil solution is the preparation method comprise the steps:
By the composition of raw materials metering, active component Imidacloprid, solvent, cosolvent are joined in reactor and adding fully dissolving under thermal agitation, temperature remains on below 50 ℃, after former medicine dissolve complete, till adding again conductive agent continue to stir, being heated to become the homogeneous transparent homogeneous phase solution, be cooled to room temperature, remove by filter a small amount of residue, filtrate is carried out analyzing and testing, can pack storing after qualified.
The target crop that is fit to is paddy rice, wheat, corn, Chinese sorghum cereal crops, cotton, crudefiber crop, soybean, peanut economic crops, tomato, eggplant, capsicum, lettuce, celery, wild cabbage, Kidney bean, broad bean, cowpea, pea vegetable crop, cucumber, pumpkin, watermelon ground family crop, tobacco, potato solanaceous crops, apple, oranges and tangerines, pears, peach, grape, strawberry fruit tree crop, chrysanthemum, China pink flower plant.
The insect that is fit to prevent and treat has aphid, soybean aphid, thrips, trialeurodes vaporariorum, the Bemisia tabaci on cigarette aphid, wheat aphid, vegetable aphid, melon aphid, citrus aphid, wooly aphis, other fruit trees, rice fulgorid, leafhopper, thrips.
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 15～30g 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, improve the agricultural chemicals availability, reduce the agricultural chemicals usage amount, be suitable for electrostatic spray.
Embodiment
The present invention describes with the following example, but does not limit the scope of the invention.
Embodiment 1:0.1% imidacloprid electrostatic oil solution
Imidacloprid 0.1kg
Calcium dodecyl benzene sulfonate 1.5kg
AEO-5 1.5kg
Methyl-sulfoxide 2.0kg
O-dichlorohenzene 4.0kg
Methyl naphthalene 90.9kg.
The preparation method: Imidacloprid, solvent, cosolvent join in reactor and are adding fully dissolving under thermal agitation, temperature remains on below 50 ℃, after former medicine dissolve complete, add again conductive agent and surfactant continue to stir, keep 50 ℃ till become the homogeneous transparent homogeneous phase solution, be cooled to room temperature, remove by filter a small amount of residue, filtrate is carried out analyzing and testing, can pack storing after qualified.
Step according to identical with embodiment 1 can prepare following examples.
Embodiment 2:2% Imidacloprid electricity finish
Imidacloprid 2.0kg
Calcium dodecyl benzene sulfonate 2.5kg
AEO-5 2.0kg
1-METHYLPYRROLIDONE 5.0kg
O-dichlorohenzene 6.0kg
Methyl naphthalene 82.5kg.
Embodiment 3:5% imidacloprid electrostatic oil solution
Imidacloprid 5.0kg
Neopelex 4.0kg
NP-10 2.0kg
1-METHYLPYRROLIDONE 10.0kg
O-dichlorohenzene 10.0kg
C10 aromatic hydrocarbons 69kg.
Embodiment 4:10% imidacloprid electrostatic oil solution
Imidacloprid 5.0kg
Calcium dodecyl benzene sulfonate 6.0kg
OP-10 2.0kg
Methyl-sulfoxide 15.0kg
O-dichlorohenzene 10.0kg
C10 aromatic hydrocarbons 62kg.
Embodiment 5:15% imidacloprid electrostatic oil solution
Imidacloprid 15.0kg
Calcium dodecyl benzene sulfonate 4.5kg
Neopelex 3.0kg
NP-10 2.5kg
1-METHYLPYRROLIDONE 8.0kg
DMF 7.0kg
O-dichlorohenzene 15.0kg
C10 aromatic hydrocarbons 45kg.
Embodiment 6:20% imidacloprid electrostatic oil solution
Imidacloprid 20.0kg
Calcium dodecyl benzene sulfonate 9.5kg
span 3.0kg
1-METHYLPYRROLIDONE 15.0kg
Methyl-sulfoxide 10.0kg
O-dichlorohenzene 15.0kg
C10 aromatic hydrocarbons 22.5kg.
Prepared imidacloprid electrostatic oil solution 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 less than 10mPas; Electrical conductivity (μ Ω cm
-1) 1～10
-3Between.
Claims (2)
1. imidacloprid electrostatic oil solution is characterized in that comprising:
0.1 part～20.0 parts of Imidacloprids
Conductive agent is 1.0 parts～10.0 parts of neopelex or calcium dodecyl benzene sulfonates
1.0 parts～25.0 parts of cosolvents
Surfactant is that one or both 2.0 parts～3.0 parts solvents of combination of fatty alcohol-polyoxyethylene ether, OPEO, polyoxyethylene nonylphenol ether, single oleic acid sorbitan ester are 42.0 parts～96.9 parts of the combinations of o-dichlorohenzene and methyl naphthalene or C10 aromatic hydrocarbons.
2. imidacloprid electrostatic oil solution according to claim 1, it is characterized in that: cosolvent is selected cyclohexanone, methyl-sulfoxide, 1-METHYLPYRROLIDONE or DMF.
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| CN 201010045648 CN101743952B (en) | 2010-01-21 | 2010-01-21 | Imidacloprid electrostatic oil solution |
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| CN 201010045648 CN101743952B (en) | 2010-01-21 | 2010-01-21 | Imidacloprid electrostatic oil solution |
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| CN101743952B true CN101743952B (en) | 2013-05-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102379299A (en) * | 2011-09-13 | 2012-03-21 | 广西田园生化股份有限公司 | Ultralow volume liquid containing spirotetramat |
| CN102687726A (en) * | 2012-01-05 | 2012-09-26 | 安徽迪邦药业有限公司 | Ointment |
| CN108835126A (en) * | 2018-06-27 | 2018-11-20 | 四川福思达生物技术开发有限责任公司 | A kind of agricultural insecticidal composite and its application containing nicotine compound and mineral oil |
| CN114831131A (en) * | 2022-05-17 | 2022-08-02 | 武汉回盛生物科技股份有限公司 | Imidacloprid self-microemulsion preparation and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518231A (en) * | 2009-03-18 | 2009-09-02 | 广西田园生化股份有限公司 | Nitenpyram static oil agent and preparation method thereof |
| CN101578993A (en) * | 2009-03-18 | 2009-11-18 | 广西田园生化股份有限公司 | Acetamiprid electrostatic oil agent and preparation method thereof |
| CN101578979A (en) * | 2009-03-18 | 2009-11-18 | 广西田园生化股份有限公司 | Avermectin and chlorpyrifos dualistic combination electrostatic oil agent and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101518231A (en) * | 2009-03-18 | 2009-09-02 | 广西田园生化股份有限公司 | Nitenpyram static oil agent and preparation method thereof |
| CN101578993A (en) * | 2009-03-18 | 2009-11-18 | 广西田园生化股份有限公司 | Acetamiprid electrostatic oil agent and preparation method thereof |
| CN101578979A (en) * | 2009-03-18 | 2009-11-18 | 广西田园生化股份有限公司 | Avermectin and chlorpyrifos dualistic combination electrostatic oil agent and preparation method thereof |
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Effective date of registration: 20201126 Address after: Room 1506, building 8, Tian'an Digital City, 199 Shennan Road, Gangzha District, Nantong City, Jiangsu Province 226000 Patentee after: Nantong Youjia Information Technology Co.,Ltd. Address before: 530007, No. 1, west section, Chuangxin Road, Nanning, the Guangxi Zhuang Autonomous Region Patentee before: Guangxi Tianyuan Biochemical Co.,Ltd. |