CN102057896A - Picloram electrostatic spray oil agent and preparation method thereof - Google Patents
Picloram electrostatic spray oil agent and preparation method thereof Download PDFInfo
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- CN102057896A CN102057896A CN2009102109826A CN200910210982A CN102057896A CN 102057896 A CN102057896 A CN 102057896A CN 2009102109826 A CN2009102109826 A CN 2009102109826A CN 200910210982 A CN200910210982 A CN 200910210982A CN 102057896 A CN102057896 A CN 102057896A
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Abstract
The invention relates to an electrostatic spray oil agent with an active ingredient picloram and a preparation method thereof. The electrostatic spray oil agent comprises the following ingredients in percentage by weight: 5.0 to 20.0 percent of picloram, 4.0 to 16.0 percent of surfactant, 15.0 to 55.0 percent of cosolvent and the balance of solvent oil. The electrostatic spray oil agent is convenient to process, low in cost, good in effect, long in duration and high in working efficiency, reduces environmental pollution and using amount of pesticide, improves the utilization ratio of the pesticide, and is suitable for electrostatic spraying.
Description
Technical field
The present invention relates to picloram electrostatic spray finish and preparation method thereof, belong to the pesticidal preparations field.
Background technology
Picloram (picloram) has another name called picloram, belongs to heterocycle compound, is a kind of optionally inner sucting herbicide, by blade and root fast Absorption, and Xiang Ding and to the two-way conduction of base.Mainly act on metabolism of nucleic acid, and make chloroplast structure and other organelle developmental deformities, interferencing protein is synthetic, acts on meristematic tissue activity etc., causes plant death at last.Be used to prevent and kill off broad leaved weed,, when crop rotation, should consider residual influence these crops to beans, grape, vegetables, cotton, fruit tree, tobacco, sunflower, beet, flowers and other crops sensitivity.
The existing preparation of picloram mainly contains aqua.And picloram electrostatic spray finish does not appear in the newspapers both at home and abroad.
Electrostatic oil agent 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.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 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.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 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 generally about 45 μ m, can reduce mist droplet particle size effectively 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 more than 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 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 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 oil agent, 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.
Summary of the invention
The purpose of this invention is to provide a kind of is the electrostatic spray finish preparation of active ingredient with the picloram.
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 a picloram 5.0%～20.0%, is preferably 10.0%～15.0%.In addition, this electrostatic oil agent also comprises surfactant 4.0%～16.0%, is preferably 12.0～14.0%; Cosolvent 15.0%～55.0% is preferably 30.0～40.0%, and surplus is a solvent naphtha.
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, N-Methyl pyrrolidone etc., preferred methyl-sulfoxide and N-Methyl pyrrolidone.
The surfactant that is fit to is an anion surfactant, as neopelex, calcium dodecyl benzene sulfonate, non-ionic surface active agent alkylphenol polyoxyethylene, phenethyl phenol polyoxyethylene poly-oxygen propylene aether etc., preferred alkyl phenol polyethenoxy ether, phenethyl phenol polyoxyethylene poly-oxygen propylene aether.
The solvent that is fit to is many Fluhyzons, as a line oil, two wires wet goods, and heavy aromatics, vegetable oil such as turpentine oil or cottonseed oil, corn wet goods.Preferred two wires oil, ℃ 10 above aromatic hydrocarbons.
Electrostatic oil agent of the present invention adopts the manner known in the art preparation, normally active ingredient and surfactant, cosolvent, solvent is fully mixed and forms.
Be suitable for preventing and kill off paddy rice, sugarcane, cereal classes such as wheat, barley, oat, rape Tanaka's annual broadleaf weed, and Eupatorium adenophorum, broad leaved weed and shrub etc. in the uncultivated area, road, railway, airport, pasture, tennis court, forest.
The method for optimizing of using electrostatic spray finish 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 1000～3600g a.i./hm usually
2
Embodiment
The present invention describes with the following example, but does not limit the scope of the invention.
Embodiment 1: 5% picloram electrostatic spray finish
The former medicinal cosolvent of picloram, solvent dissolve fully, add other compositions again, evenly mix, and can be made into the electrostatic spray finish after fully stirring.
Step according to identical with embodiment 1 can prepare following examples.
Embodiment 2: 10% picloram electrostatic spray finish
Embodiment 3: 15% picloram electrostatic oil agent
Embodiment 4: 20% picloram electrostatic spray finish
Prepared picloram electrostatic spray finish outward appearance is transparent homogeneous oily liquids; Low temperature compatibility is good, and under-5 ℃, refrigeration 24h 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 below 10mPas; Electrical conductivity is at 110.0 μ scm
-1About.
Claims (9)
1. electrostatic spray finish formulation, it comprises following composition and content (by weight):
2. picloram electrostatic spray finish according to claim 1, it comprises following composition and content (by weight):
3. according to claim 1,2 described picloram electrostatic spray finishes, wherein, surfactant is selected from anion and non-ionic surface active agent.
4. according to the described picloram electrostatic spray of claim 1～3 finish, wherein, surfactant is alkylphenol polyoxyethylene, phenethyl phenol polyoxyethylene poly-oxygen propylene aether.
5. according to the described picloram electrostatic spray of claim 1～4 finish, wherein, cosolvent is selected from the above alcohols of C4, cyclohexanone, methyl-sulfoxide, N-Methyl pyrrolidone.
6. according to the described picloram electrostatic spray of claim 1～5 finish, wherein, cosolvent is a methyl-sulfoxide, N-Methyl pyrrolidone.
7. according to the described picloram electrostatic spray of claim 1～6 finish, wherein, solvent naphtha is selected from many Fluhyzons, heavy aromatics, vegetable oil.
8. according to the described picloram electrostatic spray of claim 1～7 finish, wherein, solvent naphtha is a two wires oil.
9. according to the described picloram electrostatic spray of claim 1～7 finish, wherein, solvent naphtha is the above aromatic hydrocarbons of C10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102109826A CN102057896A (en) | 2009-11-13 | 2009-11-13 | Picloram electrostatic spray oil agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102109826A CN102057896A (en) | 2009-11-13 | 2009-11-13 | Picloram electrostatic spray oil agent and preparation method thereof |
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| CN102057896A true CN102057896A (en) | 2011-05-18 |
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| CN2009102109826A Pending CN102057896A (en) | 2009-11-13 | 2009-11-13 | Picloram electrostatic spray oil agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334485A (en) * | 2011-11-04 | 2012-02-01 | 利尔化学股份有限公司 | Synergistic herbicidal pesticide composite |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830254A (en) * | 2006-04-18 | 2006-09-13 | 四川绵阳利尔化工有限公司 | Herbicide composition for rape field |
| 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 |
-
2009
- 2009-11-13 CN CN2009102109826A patent/CN102057896A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830254A (en) * | 2006-04-18 | 2006-09-13 | 四川绵阳利尔化工有限公司 | Herbicide composition for rape field |
| 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 |
Non-Patent Citations (1)
| Title |
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| 曹坳程等: "紫茎泽兰综合治理策略及示范", 《粮食安全与植保科技创新》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334485A (en) * | 2011-11-04 | 2012-02-01 | 利尔化学股份有限公司 | Synergistic herbicidal pesticide composite |
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Application publication date: 20110518 |