CN101926344A - Electrostatic spraying liquid preparation of binary composition of mixture-xylyl-n-methyl carbamate and buprofezin and preparation method thereof - Google Patents
Electrostatic spraying liquid preparation of binary composition of mixture-xylyl-n-methyl carbamate and buprofezin and preparation method thereof Download PDFInfo
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- CN101926344A CN101926344A CN2010102625042A CN201010262504A CN101926344A CN 101926344 A CN101926344 A CN 101926344A CN 2010102625042 A CN2010102625042 A CN 2010102625042A CN 201010262504 A CN201010262504 A CN 201010262504A CN 101926344 A CN101926344 A CN 101926344A
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Abstract
The invention provides an electrostatic spraying liquid preparation of a binary composition of mixture-xylyl-n-methyl carbamate and buprofezin and a preparation method thereof. The electrostatic spraying liquid preparation comprises the following components in part by weight: 1.0 to 50.0 parts of the mixture-xylyl-n-methyl carbamate, 1.0 to 50.0 parts of the buprofezin, 1.0 to 8.0 parts of conductive agent and 1.0 to 10 parts of latent solvent, wherein the solvent is complemented to 100 parts. The electrostatic spraying liquid preparation is convenient to produce, has low cost, good drug effect, long durative efficacy and high work efficiency, can reduce environmental pollution, improve the utilization ratio of a pesticide and reduce the using amount of the pesticide, and is suitable for electrostatic spraying.
Description
Technical field
The present invention relates to dimethyl phenyl carbamate (active ingredient I hereinafter referred to as) and Buprofezin (active ingredient II hereinafter referred to as) binary composition electrostatic spray liquor and preparation method thereof, belong to the pesticidal preparations field.
Background technology
Buprofezin (Buprofezin) as active ingredient I belongs to thiadiazine ketone chitin synthesis inhibitor.Low toxicity is extremely light to skin and eye irritation effect.Strong to the insect action of contace poison, stomach poison function is also arranged.It is synthetic to suppress insect chitin, disturbs metabolism, causes insect molting deformity or wing lopsided and slowly dead.Just can find out effect in 3-7 days after the general dispenser, adult not had direct killing power, but can shorten its life-span, reduce egg laying amount, and output be mostly addle-egg, even the also very fast death of larva hatching.Leafhopper, plant hopper and aleyrodid of control Semiptera and scale insect are active high.The drug effect phase reached more than 30 days.To pest natural enemy and insect pollinator safety.There is not mutual pesticide resistance problem with other insecticides.
Dimethyl phenyl carbamate (dimethacarb) as active ingredient II is the carbamate insecticide that is mixed by two kinds of isomers, and plant hopper, leafhopper are had strong action of contace poison.The speed of knocking down is fast, and after the general dispenser about 1 hour, most of insect promptly fell in the water, but the longevity of residure has only 2～3 days.Its drug effect is not subjected to Temperature Influence, still has good preventive effect at low temperatures.Dimethyl phenyl carbamate is all effective to insects such as Lepidoptera and Homopteras, is mainly used in control leafhopper, plant hopper, thrips etc.
The existing preparation of above binary Pesticidal combination mainly contains missible oil, suspending agent, the agent of kind clothing, seed dressing, wetting powder.And dimethyl phenyl carbamate and Buprofezin binary combination electrostatic spray liquor do not appear in the newspapers both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of is the electrostatic spray liquor preparation of active ingredient with dimethyl phenyl carbamate and Buprofezin binary composition.
Another object of the present invention provides the preparation method of described this electrostatic spray liquor.
The electrostatic spray liquor is low by the screening volatility, flash-point is high, to former medicine dissolubility height,, organic solvent that viscosity low lower to chemical injury of crops, not to water,, but directly use during dispenser with electrostatic sprayer generally also not to other organic solvents.Electrostatic spray makes the droplet of each ejection all have electrostatic charge, be easier to be caught by target, than general finish deposition height, penetrability to target such as plant strain canopy is more superior, so 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.The electrostatic spray liquor directly uses and need not be to water, is specially adapted to water scarcity, damage by disease and insect and belongs to fulminant and big, the occasion that must dispenser on a large scale in the short time of area takes place.
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 good performances such as deposition efficiency height, float of mist droplet scatter and disappear 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 soup 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 soup 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, the target crop is covered evenly the deposition height.The droplet that electrostatic spray forms has same sex electric charge, in spatial movement, repel mutually, 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, droplet is adsorbed onto the positive and negative of crop fast, has improved the deposition of agricultural chemicals on the target crop, has improved the uniformity of agricultural chemicals deposition.The deposition of agricultural chemicals on crop surface improves 36% than conventional spraying, and leaf back side agricultural chemicals deposition is 20～40 times of conventional spraying, and crop top, middle part and root agricultural chemicals deposition distributing homogeneity all are significantly increased.More much lower at the deposition that vegetable protecting field adopts electrostatic spray, droplet to drop on the electrical insulator plastic film than conventional spraying, 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 the control cost.The footpath can reduce mist droplet particle size effectively generally at 45 μ m in the electrostatic spray droplet volume, improves the spectrum of fog drop uniformity, meets biological optimum grain-diameter theory, is easy to be caught by target.When electrostatic potential was 20KV, it is about 10% that mist droplet particle size reduces, and the spectrum of fog drop uniformity improves about 5%.Significantly increase the chance that droplet contacts with damage by disease and insect, improved extermination of disease and insect pest effect (similarity condition improves 2 times than conventional spraying down) exponentially.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 saves 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 agricultural chemicals availability height, 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 high adsorption capacity on crop, and comprehensively evenly, dispenser efficient height, it is firm that agricultural chemicals adheres on 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. the work efficiency height is prevented and treated 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 spray liquor, need not to add water, is particularly suitable for the drought and water shortage area and uses.
7. electrostatic spray be difficult for to produce poisoning to crop, does not have obviously residually, can improve the quality of crop.
The technical solution used in the present invention is: with dimethyl phenyl carbamate and Buprofezin binary composition is that active ingredient prepares the electrostatic spray liquor.
This electrostatic spray liquor comprises the component of following weight proportion:
1.0 parts～50.0 parts of dimethyl phenyl carbamate
1.0 parts～50.0 parts of Buprofezins
1.0 parts～8.0 parts of conductive agents
1.0 parts～10.0 parts of cosolvents
Solvent complements to 100 parts.
The above composition weight proportion optimization:
5.0 parts～25.0 parts of dimethyl phenyl carbamate
5.0 parts～25.0 parts of Buprofezins
2.0 parts～8.0 parts of conductive agents
2.0 parts～8.0 parts of cosolvents
Solvent complements to 100 parts.
The cosolvent that is fit to is selected C for use
4Above alcohols, for example n-butanol, n-amyl alcohol, n-octyl alcohol, phenmethylol, cyclohexanone, methyl-sulfoxide, or N-Methyl pyrrolidone, preferred n-butanol, n-octyl alcohol or N-Methyl pyrrolidone.
The conductive agent that is fit to is an anion surfactant, as neopelex or calcium dodecyl benzene sulfonate.
The solvent that is fit to is many Fluhyzons, as a line oil, two wires oil; Heavy aromatics; Vegetable oil; As turpentine oil or cottonseed oil, corn oil.Preferred two wires oil, the above aromatic hydrocarbons of C10.
The preparation method of electrostatic spray liquor of the present invention is: adopt active ingredient and conductive agent, cosolvent, solvent are fully mixed in proportion and makes.
The target crop that is fit to is cereal crops such as paddy rice, wheat, economic crops such as soybean, peanut, cotton, tea tree, vegetable crops such as tomato, eggplant, capsicum, lettuce, celery, wild cabbage, Kidney bean, broad bean, cowpea, pea, ground family crops such as cucumber, pumpkin, watermelon, fruit tree crops such as grape, oranges and tangerines, apple, pear tree, peach.
Electrostatic spray liquor of the present invention is fit to control rice thrips, rice gall midge, rice fulgorid, rice leafhopper, wheat mythimna separata, aphid, aleyrodid, scale insect etc.
The method for optimizing of using electrostatic spray liquor of the present invention is an electrostatic spray, and a situation arises determines suitable consumption according to controlling object, and formulation rate is 540～675g a.i./hm usually
2
The binary composition of two kinds of compositions, it is good enough and be easy to generate the problem of resistance to solve the single component result of use, and because Buprofezin quick-acting is poor, the lasting period is long, dimethyl phenyl carbamate quick-acting is strong, the characteristics that lasting period is short, both binary compositions can well reach the effect that remedies mutually with synergy, have become the preferential selection of control sucking pest.
Electrostatic spray liquor of the present invention is easy to process, with low cost, good drug efficacy, hold imitate 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:
Prepare 2% dimethyl phenyl carbamate Buprofezin electrostatic spray liquor
Dimethyl phenyl carbamate 1.0kg
Buprofezin 1.0kg
N-butanol 3.0kg
Calcium dodecyl benzene sulfonate 3.0kg
C10 aromatic hydrocarbons complements to 100kg.
The former medicinal cosolvent of dimethyl phenyl carbamate and Buprofezin, solvent are that n-butanol, C10 aromatic hydrocarbons dissolve fully, add other composition calcium dodecyl benzene sulfonates again and evenly mix, and can be made into the electrostatic spray liquor after fully stirring.
Step according to identical with embodiment 1 can prepare following examples.
Embodiment 2:
Prepare 10% dimethyl phenyl carbamate Buprofezin electrostatic spray liquor
Dimethyl phenyl carbamate 6.5kg
Buprofezin 3.5kg
N-octyl alcohol 4.0kg
Dimethyl sulfoxide (DMSO) 3.0kg
Neopelex 3.5kg
C10 aromatic hydrocarbons complements to 100kg.
Embodiment 3:
Prepare 25% dimethyl phenyl carbamate Buprofezin electrostatic spray liquor
Dimethyl phenyl carbamate 12.5kg
Buprofezin 12.5kg
N-Methyl pyrrolidone 4.0kg
Glycerine 4.0kg
Calcium dodecyl benzene sulfonate 5.0kg
Two wires oil complements to 100kg.
Embodiment 4:
Prepare 35% dimethyl phenyl carbamate Buprofezin electrostatic spray liquor
Dimethyl phenyl carbamate 20.0kg
Buprofezin 15.0kg
N-Methyl pyrrolidone 4.0kg
Calcium dodecyl benzene sulfonate 5.0kg
Two wires oil complements to 100kg.
Embodiment 5:
Prepare 45% dimethyl phenyl carbamate Buprofezin electrostatic spray liquor
Dimethyl phenyl carbamate 20.0kg
Buprofezin 25.0kg
N-Methyl pyrrolidone 10.0kg
Neopelex 8.0kg
C10 aromatic hydrocarbons complements to 100kg.
Embodiment 6:
Prepare 51% dimethyl phenyl carbamate Buprofezin electrostatic spray liquor
Dimethyl phenyl carbamate 50.0kg
Buprofezin 1.0kg
N-Methyl pyrrolidone 10.0kg
Neopelex 8.0kg
C10 aromatic hydrocarbons complements to 100kg.
Prepared dimethyl phenyl carbamate Buprofezin electrostatic spray liquor outward appearance is transparent homogeneous oily liquids; Low temperature compatibility is good, is being lower than-5 ℃, and refrigeration 7d does not separate out crystallization or suspension; Volatility is low, filter paper suspension method measurement result, and volatility is lower than 30%; To plant safety, no 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 (8)
1. dimethyl phenyl carbamate and Buprofezin binary composition electrostatic spray liquor is characterized in that comprising the component of following weight proportion:
1.0 parts～50.0 parts of dimethyl phenyl carbamate
1.0 parts～50.0 parts of Buprofezins
1.0 parts～8.0 parts of conductive agents
1.0 parts～10.0 parts of cosolvents
Solvent complements to 100 parts.
2. dimethyl phenyl carbamate according to claim 1 and Buprofezin binary composition electrostatic spray liquor is characterized in that described composition weight proportion optimization:
5.0 parts～25.0 parts of dimethyl phenyl carbamate
5.0 parts～25.0 parts of Buprofezins
2.0 parts～8.0 parts of conductive agents
2.0 parts～8.0 parts of cosolvents
Solvent complements to 100 parts.
3. dimethyl phenyl carbamate according to claim 1 and 2 and Buprofezin binary composition electrostatic spray liquor, it is characterized in that: conductive agent is selected anion surfactant for use.
4. dimethyl phenyl carbamate according to claim 3 and Buprofezin binary composition electrostatic spray liquor, it is characterized in that: conductive agent is neopelex or calcium dodecyl benzene sulfonate.
5. dimethyl phenyl carbamate according to claim 1 and 2 and Buprofezin binary composition electrostatic spray liquor, it is characterized in that: cosolvent is selected C4 above alcohols, cyclohexanone, methyl-sulfoxide or N-Methyl pyrrolidone for use.
6. dimethyl phenyl carbamate according to claim 5 and Buprofezin binary composition electrostatic spray liquor is characterized in that: the preferred n-butanol of cosolvent, n-octyl alcohol or N-Methyl pyrrolidone.
7. dimethyl phenyl carbamate according to claim 1 and 2 and Buprofezin binary composition electrostatic spray liquor, it is characterized in that: solvent is selected many Fluhyzons for use, heavy aromatics or vegetable oil.
8. dimethyl phenyl carbamate according to claim 7 and Buprofezin binary composition electrostatic spray liquor is characterized in that: solvent preferred two wires oil or the above aromatic hydrocarbons of C10.
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| CN 201010262504 CN101926344B (en) | 2010-08-25 | 2010-08-25 | Electrostatic spraying liquid preparation of binary composition of mixture-xylyl-n-methyl carbamate and buprofezin and preparation method thereof |
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| CN 201010262504 CN101926344B (en) | 2010-08-25 | 2010-08-25 | Electrostatic spraying liquid preparation of binary composition of mixture-xylyl-n-methyl carbamate and buprofezin and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102273472A (en) * | 2011-08-16 | 2011-12-14 | 江苏东宝农药化工有限公司 | Compounded pesticide composite containing methyl carbamate and buprofezin and preparation method thereof |
| CN102648712A (en) * | 2011-02-23 | 2012-08-29 | 广西田园生化股份有限公司 | Ultralow-volume liquid containing buprofezin |
| CN115971016A (en) * | 2022-12-20 | 2023-04-18 | 河南农业大学 | Method for enhancing liquid drop inclusion deposition without assistance of high-pressure electrospray equipment |
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| CN101731256A (en) * | 2010-01-21 | 2010-06-16 | 广西田园生化股份有限公司 | Electrostatic oil agent of binary composition of prochloraz and tebuconazole |
| CN101755735A (en) * | 2009-11-04 | 2010-06-30 | 广西田园生化股份有限公司 | Ultra-low volume combination medicament for controlling cotton noctuidae pest |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101755735A (en) * | 2009-11-04 | 2010-06-30 | 广西田园生化股份有限公司 | Ultra-low volume combination medicament for controlling cotton noctuidae pest |
| CN101731256A (en) * | 2010-01-21 | 2010-06-16 | 广西田园生化股份有限公司 | Electrostatic oil agent of binary composition of prochloraz and tebuconazole |
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| 《江苏农业学报》 20090430 徐德进等 "杀虫剂18种单剂和10种复配剂对褐飞虱和灰飞虱的活性差异" 第286-290页 权利要求1-8 第25卷, 第2期 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648712A (en) * | 2011-02-23 | 2012-08-29 | 广西田园生化股份有限公司 | Ultralow-volume liquid containing buprofezin |
| CN102273472A (en) * | 2011-08-16 | 2011-12-14 | 江苏东宝农药化工有限公司 | Compounded pesticide composite containing methyl carbamate and buprofezin and preparation method thereof |
| CN115971016A (en) * | 2022-12-20 | 2023-04-18 | 河南农业大学 | Method for enhancing liquid drop inclusion deposition without assistance of high-pressure electrospray equipment |
| CN115971016B (en) * | 2022-12-20 | 2023-08-18 | 河南农业大学 | Method for enhancing liquid drop package and deposition without assistance of high-voltage spraying equipment |
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