CN101926344B - 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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- CN101926344B CN101926344B CN 201010262504 CN201010262504A CN101926344B CN 101926344 B CN101926344 B CN 101926344B CN 201010262504 CN201010262504 CN 201010262504 CN 201010262504 A CN201010262504 A CN 201010262504A CN 101926344 B CN101926344 B CN 101926344B
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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 (hereinafter referred to as active ingredient I) and Buprofezin (hereinafter referred to as active ingredient II) 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.Suppress insect chitin synthetic, disturb metabolism, cause insect molting deformity or wing lopsided and slowly dead.Within 3-7 days, just can find out effect after general dispenser, adult not had to direct killing power, but can shorten its life-span, reduce egg laying amount, and output be mostly addle-egg, even the larva hatching is also very fast dead.Leafhopper, plant hopper and aleyrodid and the scale insect activity of control Semiptera are high.The drug effect phase reached more than 30 days.To pest natural enemy and insect pollinator safety.With other insecticides without mutual pesticide resistance problem.
Dimethyl phenyl carbamate (dimethacarb) as active ingredient II is the carbamate insecticide mixed by two kinds of isomers, and plant hopper, leafhopper are had to strong action of contace poison.The speed of knocking down is fast, and after general dispenser about 1 hour, most of insect fell in the water, but the longevity of residure only has 2～3 days.Its drug effect is not subject to the impact of temperature, still has at low temperatures good preventive effect.Dimethyl phenyl carbamate is all effective to insects such as Lepidoptera and Homopteras, is mainly used in preventing and treating leafhopper, plant hopper, thrips etc.
The existing preparation of above binary Pesticidal combination mainly contains missible oil, suspending agent, seed coat agent, seed dressing, wetting powder.And dimethyl phenyl carbamate and Buprofezin binary combination electrostatic spray liquor have no report both at home and abroad.
Summary of the invention
The purpose of this invention is to provide a kind of electrostatic spray liquor preparation that dimethyl phenyl carbamate and Buprofezin binary composition be active ingredient of take.
Another object of the present invention is to provide the preparation method of described this electrostatic spray liquor.
The organic solvent that the electrostatic spray liquor 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 directly use 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, as more superior as the penetrability of plant strain canopy to target, therefore efficient especially with economize medicine, it is one of current 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, has reduced volatilization and drift.Droplet is tiny and even, meets " biological optimum grain-diameter " requirement, has significantly improved deposition.The electrostatic spray liquor is directly used 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 atomization, 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 atomization resistance, simultaneously, repulsive interaction generation between the same sex electric charge additional external and internal pressure contrary 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 be placed in liquid to the static high voltage, after the nozzle ejection, is Charged Droplet; (3) inductive charging method, be 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, to the positive and negative of crop, 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.Adopt electrostatic spray at vegetable protecting field, the deposition that droplet drops on the electrical insulator plastic film is more much lower than conventional spraying, can improve the deposition of droplet on plant, effectively utilizes agricultural chemicals, reduces drift and is deposited in the 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 at 45 μ m, can reduce mist droplet particle size effectively, improves the spectrum of fog drop uniformity, meets biological optimum grain-diameter theory, is easy to be caught by target.When electrostatic potential is 20KV, mist droplet particle size reduces 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 (under similarity condition, than conventional spraying, improving 2 times).And finish has affinity to insect body wall, be easy to penetrate body wall and enter in pest body, make insect poisoning 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 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 efficiency 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 spray liquor, without adding 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.
The technical solution used in the present invention is: take dimethyl phenyl carbamate and Buprofezin binary composition prepares the electrostatic spray liquor as active ingredient.
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.
Applicable cosolvent is selected C
4above alcohols, for example n-butanol, n-amyl alcohol, n-octyl alcohol, phenmethylol, cyclohexanone, methyl-sulfoxide, or 1-METHYLPYRROLIDONE, preferably n-butanol, n-octyl alcohol or 1-METHYLPYRROLIDONE.
Applicable conductive agent is anion surfactant, as neopelex or calcium dodecyl benzene sulfonate.
Applicable solvent is many Fluhyzons, as a line is oily, two wires is oily; 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 fully are uniformly mixed and make in proportion.
Applicable target crop is the cereal crops such as paddy rice, wheat, the economic crops such as soybean, peanut, cotton, tea tree, 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 fruit tree crops such as grape, oranges and tangerines, apple, pear tree, peach.
Electrostatic spray liquor of the present invention is applicable 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 electrostatic spray, and according to controlling object, a situation arises determines suitable consumption, and formulation rate is 540～675g a.i./hm usually
2.
The binary composition of two kinds of compositions, can not solve the single component result of use good enough and easily produce the problem of resistance, 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 mutually made up 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, 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:
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, then add other composition calcium dodecyl benzene sulfonates evenly to mix, and after fully stirring, can be made into the electrostatic spray liquor.
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
1-METHYLPYRROLIDONE 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
1-METHYLPYRROLIDONE 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
1-METHYLPYRROLIDONE 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
1-METHYLPYRROLIDONE 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; The low-temperature phase capacitive is good, lower than-5 ℃, refrigerates 7d not crystallization or suspension; 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 (1)
1. a dimethyl phenyl carbamate and buprofezin binary composition electrostatic spray liquid agent is characterized in that comprising the component of following weight proportion: dimethyl phenyl carbamate 1.0kg, and Buprofezin 1.0kg, n-butanol 3.0kg, calcium dodecyl benzene sulfonate 3.0kg, C10 aromatic hydrocarbons complements to 100kg.
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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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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| 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 |
Non-Patent Citations (2)
| Title |
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| "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";徐德进等;《江苏农业学报》;20090430;第25卷(第2期);第286-290页 * |
| 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".《江苏农业学报》.2009,第25卷(第2期),第286-290页. |
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Effective date of registration: 20210608 Address after: 276100 north of Huangting Road East of Xingtan Road, Tancheng County, Linyi City, Shandong Province Patentee after: Shandong Lixing Chemical 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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