CN107136079A - A kind of aqueous cyhalofop-butyl emulsion and preparation method thereof - Google Patents
A kind of aqueous cyhalofop-butyl emulsion and preparation method thereof Download PDFInfo
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- CN107136079A CN107136079A CN201710332213.8A CN201710332213A CN107136079A CN 107136079 A CN107136079 A CN 107136079A CN 201710332213 A CN201710332213 A CN 201710332213A CN 107136079 A CN107136079 A CN 107136079A
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- cyhalofop
- butyl
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- butyl emulsion
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
A kind of aqueous cyhalofop-butyl emulsion and preparation method thereof, belongs to herbicide preparing technical field, is made up of the raw material of following mass ratio：Cyhalofop-butyl 6%~12%, solvent 8%~15%, emulsifying agent 6%~15%, antifreezing agent 2%~6%, surplus is water.Instant component is reasonable, preparation principle is clear, by low-energy emulsification method be prepared for efficiently, environment-protective water emulsion, simplify work flow, reduce production cost, improve product stability, and to the effect of weed control.Meanwhile, present invention improves decoction in the deposition of target surface, diffusion and permeance property, further increase drug effect.
Description
Technical field
The invention belongs to herbicide preparing technical field, it is related to a kind of aqueous cyhalofop-butyl emulsion and preparation method thereof.
Background technology
Cyhalofop-butyl is aryloxyphenoxypropionic class herbicide, belongs to rice terrace selective herbicide, and the herbicide can
Make cauline leaf process, bud pre-treatment is invalid, be mainly used in preventing and kill off the grassy weeds such as barnyard grass, moleplant seed.Cyhalofop-butyl belongs to interior suction
Systemic herbicides, are absorbed by plant blade and leaf sheath, and bast conduction accumulates the meristem zone in plant, suppressed
Acetyl-CoA carboxylase (ACCase), makes aliphatic acid synthesis stopping, and the growth division of cell can not be normally carried out, finally result in
Plant death.Therefore, decoction has in effective deposition of grass cutting blade, diffusion and infiltration for the performance of cyhalofop-butyl herbicidal effect
It is significant.
The traditional processing formulation of cyhalofop-butyl is missible oil, microemulsion and aqueous emulsion, although missible oil occupies in prevention effect
Some superiority, but it is using aromatic hydrocarbon solvents such as dimethylbenzene, inflammable and explosive, production cost is high, not only harmful to people and animals, pollution
Environment, and easily produce poisoning.Emulsifying agent usage amount is big in microemulsion, and usually 1.5~2 times of missible oil or aqueous emulsion, have
When also use DMF and methanol polar solvent, from production cost, prevention effect and environmental protection angle analysis, microemulsion is pushed away
There is certain difficulty in wide application.At present, the main processing formulation of cyhalofop-butyl is dispersible oil-suspending agent, but the formulation is with organic
Solvent (such as methyl oleate) is decentralized medium, and existing can be few with dispersant, and difficulty of processing is big, preparation stability difference and cost phase
To it is higher the shortcomings of.
Aqueous emulsion replaces wholly or largely organic solvent, white in appearance milk shape with water.Compared with missible oil, with
Lower advantage：(1) poisonous, inflammable organic solvent is used no or little, environmental pollution is reduced, substantially increases production, stores and transports and make
Security；(2) using water as medium, production cost is significantly reduced；(3) warm-blooded animal toxicity is significantly reduced, be difficult to making
Produce crude drug does harm to, good with other agricultural chemicals and fertilizer miscibilty, the phenomenon such as is come off without fruit powder after；(4) aqueous emulsion decoction is in target
Deposition, diffusion and the permeance property for marking (plant leaf blade or insect body surface) surface are excellent.
At present, the Chinese patent of Publication No. 101627758 discloses a kind of aqueous cyhalofop-butyl emulsion and its preparation side
Method, it not only used the up to aromatic hydrocarbon solvent such as 20%-35% toluene, dimethylbenzene, and APES
Etc. (APEO) large usage quantity of emulsifying agent, has serious pollution problem；Publication No. 101627758A Chinese patent is public
A kind of aqueous cyhalofop-butyl emulsion and preparation method thereof, this method have been opened although reducing product cost, drug effect has been improved, but make
With aromatic hydrocarbon solvents such as toluene, dimethylbenzene, certain negative effect is produced to human body and environment；Publication No.
105454228A Chinese patent discloses a kind of biodegradable aqueous cyhalofop-butyl emulsion and preparation method thereof, however, it is newborn
Agent usage amount is larger, and composition is a lot of, excessively numerous and diverse.
The content of the invention
The purpose of the present invention be for existing herbicide prepare present in it is not enough, propose a kind of aqueous cyhalofop-butyl emulsion and
Its preparation method, aqueous cyhalofop-butyl emulsion is prepared using low-energy emulsification method, and processing is simple, and production cost is low, can be lifted using steady
Qualitative energy and weed control efficacy, can improve decoction in the deposition of target surface, diffusion and permeance property, further improve medicine
Effect.
The technical scheme is that：A kind of aqueous cyhalofop-butyl emulsion, it is characterised in that the aqueous cyhalofop-butyl emulsion by
The raw material composition of following mass ratio：Cyhalofop-butyl 6%~12%, solvent 8%~15%, emulsifying agent 6%~15%, antifreezing agent 2%~
6%, surplus is water.
Described solvent is mineral oil.
The antifreezing agent is ethylene glycol, the mixture of glycerine composition.
The emulsifying agent be styryl phenyl APEO, triphenyl vinyl phenol polyoxyethylene poly-oxygen propylene aether,
Alkylaryl polyoxyethylene polyoxypropylene ether again, castor oil polyoxyethylene ether, APG, alcohol ether glucoside, polyoxyethylene sorbitan mountain
In pears alcohol fatty acid ester, aliphatic alcohol polyethenoxy ether carboxylate, calcium dodecyl benzene sulfonate it is any two or more composition
Mixture.
A kind of preparation method of aqueous cyhalofop-butyl emulsion, it is characterised in that comprise the following steps：
(1) 6%~12% cyhalofop-butyl active compound is dissolved in 8%~15% solvent, through magnetic agitation to transparent；
(2) 6%~15% emulsifying agent is added in above-mentioned steps, continues to stir composition homogeneous oil phase；
(3) 2%~6% antifreezing agent is added in deionized water, constitutes aqueous phase；
(4) under magnetic agitation effect, oil phase is added dropwise in aqueous phase, 10~30min is stirred with 500~1500r/min rotating speeds,
Produce aqueous cyhalofop-butyl emulsion.
Beneficial effects of the present invention are：A kind of aqueous cyhalofop-butyl emulsion that the present invention is provided and preparation method thereof, component is closed
Reason, preparation principle are clear, by low-energy emulsification method be prepared for efficiently, environment-protective water emulsion, simplify work flow, reduce production
Cost, improves product stability, and to the effect of weed control.Meanwhile, present invention improves decoction in target (leaves of plants
Piece or insect body surface) surface deposition, diffusion and permeance property, further increase drug effect.
Brief description of the drawings
The stability of emulsion figure for the aqueous cyhalofop-butyl emulsion that Fig. 1 is prepared for the present invention.
Dynamic contact angle schematic diagrames of the Fig. 2 for the aqueous cyhalofop-butyl emulsion decoction of the invention prepared on barnyard grass blade.
(0.5 μm) measurement figure of aqueous cyhalofop-butyl emulsion sample average particle diameter that Fig. 3 is prepared for the present invention.
Fig. 4 is the preventive effect figure of the aqueous cyhalofop-butyl emulsion of the present invention to barnyard grass of this different amounts.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
A kind of aqueous cyhalofop-butyl emulsion, aqueous cyhalofop-butyl emulsion is made up of the raw material of following mass ratio：Cyhalofop-butyl 6%~
12%, solvent 8%~15%, emulsifying agent 6%~15%, antifreezing agent 2%~6%, surplus is water.
A kind of aqueous cyhalofop-butyl emulsion, solvent is mineral oil；Antifreezing agent is ethylene glycol, the mixture of glycerine composition；Breast
Agent is styryl phenyl APEO, triphenyl vinyl phenol polyoxyethylene poly-oxygen propylene aether, alkylaryl polyoxy third
Alkene APEO, castor oil polyoxyethylene ether, APG, alcohol ether glucoside, polyoxyethylene sorbitan fatty acid ester, fat
The mixture of two or more any compositions in fat alcohol polyethenoxy ether carboxylate, calcium dodecyl benzene sulfonate.
A kind of preparation method of aqueous cyhalofop-butyl emulsion, comprises the following steps：
(1) 6%~12% cyhalofop-butyl active compound is dissolved in 8%~15% solvent, through magnetic agitation to transparent；
(2) 6%~15% emulsifying agent is added, continues to stir composition homogeneous oil phase；
(3) 2%~6% antifreezing agent is added in deionized water, constitutes aqueous phase；
(4) under magnetic agitation effect, oil phase is added dropwise in aqueous phase, 10~30min is stirred with 500~1500r/min rotating speeds,
Produce aqueous cyhalofop-butyl emulsion.
Embodiment 1：
(1) 4g cyhalofop-butyl active compounds are added in beaker, 4g solvents is added thereto, emulsified after adding 4g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 25g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 2：
(1) 4g cyhalofop-butyl active compounds are added in beaker, 3.2g solvents is added thereto, emulsified after adding 4g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 25.8g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 3：
(1) 4g cyhalofop-butyl active compounds are added in beaker, 6g solvents is added thereto, emulsified after adding 4g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 21g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 15min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 4：
(1) 4g cyhalofop-butyl active compounds are added in beaker, 4g solvents is added thereto, it is newborn after adding 2.4g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 26.6g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 5：
(1) 4g cyhalofop-butyl active compounds are added in beaker, 4g solvents is added thereto, it is newborn after adding 3.2g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 25.8g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 6：
(1) 4g cyhalofop-butyl active compounds are added in beaker, 4g solvents is added thereto, it is newborn after adding 4.8g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 24.2g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 7：
(1) 2.4g cyhalofop-butyl active compounds are added in beaker, 4g solvents is added thereto, it is newborn after adding 4g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 26.6g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
Embodiment 8：
(1) 4.8g cyhalofop-butyl active compounds are added in beaker, 4g solvents is added thereto, it is newborn after adding 4g after abundant dissolving
Agent, is sufficiently stirred for into homogeneous oil phase；
(2) in the case of magnetic agitation, the 24.2g water for having dissolved 3g glycerine is added dropwise to oil phase；
(3) after after water completion of dropping, 1200r/min rotating speed magnetic agitation 20min are kept, that is, aqueous cyhalofop-butyl emulsion 40g is made.
The product obtained to above-mentioned 6 embodiments carries out average grain diameter and stability test, as a result such as table 1：
The average grain diameter and stability test result of the aqueous cyhalofop-butyl emulsion of table 1
Note：
(1) stability of emulsion CIPAC MT 36 (20 times of 342 ppm standard hard waters dilution is qualified) GB/T 1603-2001 emulsions
The assay method of stability (200 times of 342 ppm standard hard waters dilution is qualified).
(2) heat storage stability：GB/T 19136-2003.
(3) cold storage stability：GB/T 19137-2003.
(4) persistent foamability assay method CIPAC F volume MT 31.
Aqueous emulsion produced by the present invention is prevented and kill off for rice terrace barnyard grass, using effect is as shown in Figure 4 (wherein：CK for pair
According to；A samples 60g/mu；B samples 80g/mu；C samples 100g/mu；D comparison medicaments 60g/mu；E comparison medicaments 80g/mu；f
Comparison medicament 100g/mu), result of the test is as shown in table 2 below：
The different amounts aqueous cyhalofop-butyl emulsion of table 2 prevents and kill off rice terrace barnyard grass effect
As can be drawn from Table 2, aqueous cyhalofop-butyl emulsion of the invention is better than comparison medicament to the prevention effect of barnyard grass, shows this
The aqueous cyhalofop-butyl emulsion of invention can significantly improve prevention effect；The standard error of the aqueous cyhalofop-butyl emulsion of the present invention is less than
The standard error of comparison medicament, the stabilization of product can be significantly improved by showing the aqueous cyhalofop-butyl emulsion of the invention of the present invention
Property.
Claims (5)
1. a kind of aqueous cyhalofop-butyl emulsion, it is characterised in that the aqueous cyhalofop-butyl emulsion by following mass ratio raw material group
Into：Cyhalofop-butyl 6%~12%, solvent 8%~15%, emulsifying agent 6%~15%, antifreezing agent 2%~6%, surplus is water.
2. a kind of aqueous cyhalofop-butyl emulsion according to claim 1, it is characterised in that：Described solvent is mineral oil.
3. a kind of aqueous cyhalofop-butyl emulsion according to claim 1, it is characterised in that：Described antifreezing agent be ethylene glycol,
The mixture of glycerine composition.
4. a kind of aqueous cyhalofop-butyl emulsion according to claim 1, it is characterised in that：Described emulsifying agent is styryl
Phenyl APEO, triphenyl vinyl phenol polyoxyethylene poly-oxygen propylene aether, alkylaryl polyoxyethylene polyoxypropylene ether again, castor
Sesame oil APEO, APG, alcohol ether glucoside, polyoxyethylene sorbitan fatty acid ester, AEO
The mixture of two or more any compositions in carboxylate, calcium dodecyl benzene sulfonate.
5. a kind of preparation method of aqueous cyhalofop-butyl emulsion as claimed in claim 1, it is characterised in that comprise the following steps：
(1) 6%~12% cyhalofop-butyl active compound is dissolved in 8%~15% solvent, through magnetic agitation to transparent；
(2) 6%~15% emulsifying agent is added in step (1), continues to stir composition homogeneous oil phase；
(3) 2%~6% antifreezing agent is added in deionized water, constitutes aqueous phase；
(4) under magnetic agitation effect, oil phase is added dropwise in aqueous phase, 10~30min is stirred with 500~1500r/min rotating speeds,
Produce aqueous cyhalofop-butyl emulsion.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112889824A (en) * | 2021-01-22 | 2021-06-04 | 济南天邦化工有限公司 | Self-emulsifying aqueous emulsion containing acetochlor |
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