CN110402923A - Pinoxaden aqueous emulsion and its preparation method and application - Google Patents
Pinoxaden aqueous emulsion and its preparation method and application Download PDFInfo
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- CN110402923A CN110402923A CN201910760210.3A CN201910760210A CN110402923A CN 110402923 A CN110402923 A CN 110402923A CN 201910760210 A CN201910760210 A CN 201910760210A CN 110402923 A CN110402923 A CN 110402923A
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- pinoxaden
- aqueous emulsion
- emulsifier
- mass percentage
- acid copolymer
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- 239000005597 Pinoxaden Substances 0.000 title claims abstract description 170
- MGOHCFMYLBAPRN-UHFFFAOYSA-N pinoxaden Chemical compound CCC1=CC(C)=CC(CC)=C1C(C1=O)=C(OC(=O)C(C)(C)C)N2N1CCOCC2 MGOHCFMYLBAPRN-UHFFFAOYSA-N 0.000 title claims abstract description 170
- 239000000839 emulsion Substances 0.000 title claims abstract description 146
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002562 thickening agent Substances 0.000 claims abstract description 15
- 241000192043 Echinochloa Species 0.000 claims description 29
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 21
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 20
- 159000000000 sodium salts Chemical class 0.000 claims description 20
- -1 Alcohol acid anhydride Chemical class 0.000 claims description 19
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 claims description 13
- 239000001587 sorbitan monostearate Substances 0.000 claims description 13
- 235000011076 sorbitan monostearate Nutrition 0.000 claims description 13
- 229940035048 sorbitan monostearate Drugs 0.000 claims description 13
- 241000196324 Embryophyta Species 0.000 claims description 11
- 238000004945 emulsification Methods 0.000 claims description 11
- 239000000230 xanthan gum Substances 0.000 claims description 8
- 229920001285 xanthan gum Polymers 0.000 claims description 8
- 229940082509 xanthan gum Drugs 0.000 claims description 8
- 235000010493 xanthan gum Nutrition 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 11
- 239000003960 organic solvent Substances 0.000 abstract description 5
- 238000009472 formulation Methods 0.000 abstract description 2
- 239000000575 pesticide Substances 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 18
- 230000002401 inhibitory effect Effects 0.000 description 17
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 10
- 150000002148 esters Chemical class 0.000 description 10
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- 238000005338 heat storage Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000600 sorbitol Substances 0.000 description 7
- 244000025254 Cannabis sativa Species 0.000 description 6
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 5
- 150000003851 azoles Chemical class 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- WXBXQUFGRJEKPL-UHFFFAOYSA-N 2-methylundecan-2-amine Chemical compound CCCCCCCCCC(C)(C)N WXBXQUFGRJEKPL-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 239000008267 milk Substances 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- DMAXMXPDVWTIRV-UHFFFAOYSA-N 2-(2-phenylethyl)phenol Chemical compound OC1=CC=CC=C1CCC1=CC=CC=C1 DMAXMXPDVWTIRV-UHFFFAOYSA-N 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000001018 virulence Effects 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 1
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 description 1
- 241000209510 Liliopsida Species 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
- 231100000674 Phytotoxicity Toxicity 0.000 description 1
- 229920001214 Polysorbate 60 Polymers 0.000 description 1
- 229920004890 Triton X-100 Polymers 0.000 description 1
- 239000013504 Triton X-100 Substances 0.000 description 1
- LWZFANDGMFTDAV-BURFUSLBSA-N [(2r)-2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O LWZFANDGMFTDAV-BURFUSLBSA-N 0.000 description 1
- 229940121373 acetyl-coa carboxylase inhibitor Drugs 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OOCMUZJPDXYRFD-UHFFFAOYSA-L calcium;2-dodecylbenzenesulfonate Chemical compound [Ca+2].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O.CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O OOCMUZJPDXYRFD-UHFFFAOYSA-L 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 230000032823 cell division Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 125000002243 cyclohexanonyl group Chemical group *C1(*)C(=O)C(*)(*)C(*)(*)C(*)(*)C1(*)* 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 239000004495 emulsifiable concentrate Substances 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000001590 sorbitan monolaureate Substances 0.000 description 1
- 235000011067 sorbitan monolaureate Nutrition 0.000 description 1
- 239000001593 sorbitan monooleate Substances 0.000 description 1
- 235000011069 sorbitan monooleate Nutrition 0.000 description 1
- 229940035049 sorbitan monooleate Drugs 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
Landscapes
- 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)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
This application involves formulations of pesticide technical fields, disclose a kind of pinoxaden aqueous emulsion, and in terms of mass percentage, pinoxaden aqueous emulsion includes: pinoxaden 8-15%；Solvent 20-40%；Emulsifier 10-23%；Thickener 0.05-0.2%；Water supplies 100%.The pinoxaden aqueous emulsion that this application provides a kind of systems is uniform, stability is good, compared with existing pinoxaden missible oil, consumption of organic solvent is few, environmentally safe.Disclosed herein as well is a kind of preparation method and application of pinoxaden aqueous emulsion.
Description
Technical field
This application involves formulations of pesticide preparation technical fields, such as be related to a kind of pinoxaden aqueous emulsion and preparation method thereof
And application.
Background technique
Pinoxaden category neophyl oxazolines herbicide, the mechanism of action is acetyl-CoA carboxylase inhibitor, causes fat
Sour biosynthesis block, stops cell division, and cell membrane is destructurized containing rouge, causes weeds dead, have in agricultural compared with
To be widely applied, it is chiefly used in preventing and treating annual gramineous weed in farmland.
During realizing the embodiment of the present disclosure, at least there are the following problems in the related technology: existing oxazoline for discovery
The dosage form of careless ester is mostly missible oil, and the dosage of organic solvent is more in pinoxaden missible oil, and environmental pollution is larger.
Summary of the invention
In order to which some aspects of the embodiment to disclosure have basic understanding, simple summary is shown below.It is described general
Including is not extensive overview, nor to determine key/critical component or describe the protection scope of these embodiments, but is made
For the preamble of following detailed description.
The embodiment of the present disclosure provides a kind of pinoxaden aqueous emulsion and its preparation method and application, to solve existing azoles
Consumption of organic solvent is more in quinoline grass emulsifiable concentrate, the larger technical problem of environmental pollution.
In some embodiments, the pinoxaden aqueous emulsion, in terms of mass percentage, comprising: pinoxaden 8-
15%；Solvent 20-40%；Emulsifier 10-23%；Thickener 0.05-0.2%；Water supplies 100%.
In some embodiments, the preparation method of the pinoxaden aqueous emulsion includes: to mix pinoxaden with solvent,
Oily phase is obtained after dissolution；Emulsifier and water are mixed, water phase is obtained；By the oil it is mutually mixed with water after, carry out emulsification treatment,
Obtain pinoxaden aqueous emulsion as the aforementioned.
In some embodiments, the application of the pinoxaden aqueous emulsion, the pinoxaden aqueous emulsion be it is aforementioned described,
And it is applied to controlling weeds.
The pinoxaden aqueous emulsion that the embodiment of the present disclosure provides, may be implemented following technical effect:
The embodiment of the present disclosure, by the dosage of limitation solvent, emulsifier and thickener, is obtained using pinoxaden as effective component
The pinoxaden aqueous emulsion that system is uniform, stability is good, compared with current pinoxaden missible oil, consumption of organic solvent are arrived
It is few, it is environmentally safe.
Above general description and it is discussed below be only it is exemplary and explanatory, be not used in limitation the application.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present disclosure and technology contents, below to the embodiment of the present disclosure
Realization be described in detail.In technical description below, for convenience of explanation for the sake of, by multiple details to provide to being draped over one's shoulders
Dew embodiment is fully understood.However, one or more embodiments still can be implemented in the case where without these details.
The embodiment of the present disclosure provides a kind of pinoxaden aqueous emulsion.
The pinoxaden aqueous emulsion that the embodiment of the present disclosure provides, in terms of mass percentage, comprising: pinoxaden 8-
15%；Solvent 20-40%；Emulsifier 10-23%；Thickener 0.05-0.2%；Water supplies 100%.
Optionally, in pinoxaden aqueous emulsion, using pinoxaden raw medicine as effective component, pinoxaden raw medicine can be
The pinoxaden raw medicine of mass percentage Wei≤95%, such as 96% pinoxaden raw medicine.The embodiment of the present disclosure passes through to molten
The pinoxaden water and milk that system is uniform, stability is good has been prepared in the limitation of the percentage composition of agent, emulsifier and thickener
Agent.Wherein, the mass percentage of pinoxaden is 8-15%, for example, can for 8%, 9%, 10%, 11%, 12%,
13%, 14%, 15%, or in these numerical value between the value range and these value ranges of any two numerical value composition
Numerical value, optionally, the mass percentage of pinoxaden can be mass percentage of the pinoxaden raw medicine in aqueous emulsion,
For example, can be mass percentage of the 96% pinoxaden raw medicine in aqueous emulsion.The mass percentage of solvent is 20-
40%, for example, can be 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, 40%, it can also be with
For the numerical value between the value range and these value ranges of two numerical value any in these numerical value composition, optionally, solvent is organic
Solvent.The mass percentage of emulsifier is 10-23%, for example, can for 10%, 12%, 14%, 16%, 18%, 20%,
22%, 23%, or the numerical value in these numerical value between the value range and these value ranges of any two numerical value composition.
The mass percentage of thickener is 0.05-0.2%, for example, can for 0.05%, 0.07%, 0.09%, 0.1%,
0.12%, 0.14%, 0.16%, 0.18%, 0.2%, or the value range of any two numerical value composition in these numerical value, with
And the numerical value between these value ranges.
Optionally, solvent above-mentioned can be N, N dimethyl decyl amide, dimethylbenzene, cyclohexanone, solvent naphtha, in toluene
One or more kinds of combinations.Optionally, emulsifier above-mentioned can be octyl phenol polyoxyethylene ether, polyoxyethylene sorbitol
Acid anhydride monolaurate, polyoxyethylene sorbitol acid anhydride monopalmitate, polyoxyethylene sorbitan carboxylic ester, sorbitol anhydride list are hard
Resin acid ester, sorbitanmonolaureate, sorbitan monooleate, nonylphenol polyoxyethylene ether, Nonyl pheno
Ether, Triton X-100, acrylic acid copolymer sodium salt, organosilicon wetting agent, phenethyl phenol polyoxyethylene polyoxy oxygen
Propylene ether, phenethyl phenol polyoxyethylene polyoxy oxypropylene ether, calcium dodecyl benzene sulfonate, styrylphenol polyoxyethylene ether
One of or more than one combination.Wherein, sorbitan monostearate is also referred to as Arlacel-20, acrylic copolymer
Sylvite is also referred to as 123K.
In some embodiments, solvent includes cyclohexanone.
When solvent is cyclohexanone, after mixing with pinoxaden raw medicine, dissolution obtains yellow transparent oil phase liquid, and cold
It there is no variation after storage 7 days, improves to pinoxaden raw medicine solubility property, improves pinoxaden in aqueous emulsion and be distributed
Uniformity.Optionally, dimethylbenzene, N, N dimethyl decyl amide can be used as the cosolvent of cyclohexanone.Optionally, solvent may be used also
Think cyclohexanone and N, the mixture of N dimethyl decyl amide and dimethylbenzene, wherein by quality ratio, cyclohexanone: N, N dimethyl
Decyl amide: dimethylbenzene=6:3:2 improves the homogeneity of pinoxaden in aqueous emulsion, reduces the aqueous emulsion being prepared
Surface tension improves pinoxaden aqueous emulsion to the control efficiency of weeds.Optionally, in pinoxaden aqueous emulsion, cyclohexanone
Mass percentage can be 20%, 21%, 22%, 23%, 25%, 28%, 30%.
In some embodiments, mass percentage of the emulsifier in pinoxaden aqueous emulsion is 18-22%, and aforementioned
Solvent type and mass percentage combine, improve the emulsifiability of pinoxaden aqueous emulsion, improve oxazoline grass
Stability in the long term storage of ester aqueous emulsion improves pinoxaden aqueous emulsion to the control efficiency of weeds.
In some embodiments, emulsifier above-mentioned may include acrylic acid copolymer sodium salt and sorbitol anhydride monostearate
One of ester or more than one combination.
Optionally, emulsifier can be acrylic acid copolymer sodium salt.When emulsifier is acrylic acid copolymer sodium salt, preparation
The physical property of obtained pinoxaden aqueous emulsion shows themselves in that uniform milky white liquid, does not observe after placing a period of time
Lamination is observed under the microscope, and the uniform particle sizes of aqueous emulsion do not observe oil droplet and crystal；After heat storage 14 days, with room temperature
Under the conditions of the pinoxaden aqueous emulsion that saves compare, do not find difference.Optionally, when emulsifier is acrylic acid copolymer sodium salt
When, the mass percentage of acrylic acid copolymer sodium salt can be in pinoxaden aqueous emulsion are as follows: 10%, 11%, 12%, 13%,
14%, 15%, 16%, 17%, 18%, 19%, 20%.
Optionally, emulsifier can be acrylic acid copolymer sodium salt and sorbitan monostearate.When emulsifier is third
When the mixture of olefin(e) acid copolymer sylvite and sorbitan monostearate, the pinoxaden aqueous emulsion that is prepared it is physical
Matter shows themselves in that uniform milky white liquid, does not observe lamination after placing a period of time, observes under the microscope, water and milk
The uniform particle sizes of agent, do not observe oil droplet and crystal；After heat storage 14 days, with the pinoxaden aqueous emulsion phase saved under normal temperature condition
Than not finding difference.Optionally, acrylic acid copolymer sodium salt and sorbitan monostearate are as composite emulsifier, in azoles
Mass percentage in quinoline grass ester aqueous emulsion can be with are as follows: and 18%, 19%, 20%, 21%, 22%, 23%, it improves and is prepared into
The stability of the system of the pinoxaden aqueous emulsion arrived.Optionally, in composite emulsifier, by quality ratio, sorbitol anhydride list is hard
Resin acid ester: acrylic acid copolymer sodium salt=1:1-1.5 is combined with the type of solvent above-mentioned and mass percentage, is improved
The stability for the pinoxaden aqueous emulsion being prepared, improves pinoxaden to the control efficiency of weeds.Optionally, sorb
Alcohol acid anhydride monostearate: acrylic acid copolymer sodium salt=1:1, optionally, sorbitan monostearate: acrylic copolymer potassium
Salt=1:1, optionally, sorbitan monostearate: acrylic acid copolymer sodium salt=1:9, optionally, sorbitol anhydride list are stearic
Acid esters: acrylic acid copolymer sodium salt=3:7, optionally, and sorbitan monostearate: acrylic acid copolymer sodium salt=4:6, it can
Choosing, sorbitan monostearate: acrylic acid copolymer sodium salt=7:3, optionally, sorbitan monostearate: propylene
Acid copolymer sylvite=8:2, optionally, sorbitan monostearate: acrylic acid copolymer sodium salt=9:1.
In some embodiments, the thickener in pinoxaden aqueous emulsion above-mentioned includes xanthan gum.
When thickener is xanthan gum, together with solvent above-mentioned and emulsifier, the pinoxaden being prepared is improved
The stability of the system of aqueous emulsion is conducive to improve pinoxaden aqueous emulsion viscosity, and the heat storage for improving pinoxaden aqueous emulsion is steady
It is qualitative, sinking speed of the pinoxaden particle in aqueous emulsion is reduced, the pinoxaden aqueous emulsion being prepared is improved
The stability of long-term storage.The viscosity of pinoxaden aqueous emulsion is not that the higher the better.Thickener is in pinoxaden aqueous emulsion
Mass percentage not preferably less than 0.05%, otherwise, improvement to the stability, viscosity of the system of pinoxaden aqueous emulsion and
The promotion of the physical properties such as the stability of heat storage is unobvious；Mass percentage of the thickener in pinoxaden aqueous emulsion is unsuitable
Higher than 0.2%, otherwise, it is unfavorable for the pourability of pinoxaden aqueous emulsion, reduces its heat storage stability.Optionally, pinoxaden
The mass percentage of xanthan gum can be in aqueous emulsion are as follows: 0.08%, 0.09%, 0.1%, 0.11%, 0.12%, 0.13%.
Further, mass percentage of the xanthan gum in pinoxaden aqueous emulsion is 0.1%, the aqueous emulsion pourability being prepared
Well.
The embodiment of the present disclosure provides a kind of preparation method of pinoxaden aqueous emulsion simultaneously, comprising:
S101: pinoxaden is mixed with solvent, after dissolution, obtains oily phase；
Pinoxaden is mixed with solvent, after completely dissolution, obtains oily phase.Pinoxaden raw medicine is powdered, such as matter
Pinoxaden raw medicine is mixed with solvent, after dissolution, obtains dissolved oil by the pinoxaden raw medicine for measuring hundred points of Han Liang≤95%
Phase is conducive to subsequent pinoxaden aqueous emulsion that is uniform, having good stability be prepared.Optionally, it can be used churned mechanically
Mode promotes pinoxaden to dissolve in a solvent.
S102: emulsifier and water are mixed, water phase is obtained；
S103: by oil it is mutually mixed with water after, progress emulsification treatment, obtain pinoxaden aqueous emulsion as the aforementioned.
By oil above-mentioned it is mutually mixed with water after, carry out emulsification treatment, obtain pinoxaden aqueous emulsion.Optionally, it can adopt
Emulsification treatment is carried out with high-shear homogenizing machine.Optionally, emulsification treatment above-mentioned, shear time are carried out with the revolving speed of 10000rpm
For 50-70s.Wherein, shear time can be 50 seconds, 52 seconds, 54 seconds, 56 seconds, 58 seconds, 60 seconds, 62 seconds, 64 seconds, 66 seconds, 68
Second, 70 seconds.Optionally, the addition of thickener above-mentioned can suitably reduce the shear time in emulsion process, e.g., 50 seconds, 52
Second, 54 seconds, 56 seconds, 58 seconds.
Optionally, the sequence of S101 and S102 above-mentioned can be interchanged.
The preparation method for the pinoxaden aqueous emulsion that the embodiment of the present disclosure provides further include:
After the completion of emulsification treatment, thickener is added, obtains pinoxaden aqueous emulsion above-mentioned.
Thickener, which is added, can be improved the stability of system, and on the other hand, thickener can influence the viscosity of aqueous emulsion.
The pinoxaden aqueous emulsion of the embodiment of the present disclosure is subjected to heat storage and cold storage Stability Determination, as the result is shown:
Pinoxaden aqueous emulsion above-mentioned is sealed in tool plug test tube, is stored 14 days in 54 ± 0.1 DEG C of insulating boxs, into
Row heat storage.After heat storage, the oil-free analysis phenomenon of the pinoxaden aqueous emulsion of the embodiment of the present disclosure, stable system, the azoles with storage at normal temperature
Quinoline grass ester aqueous emulsion is compared, indifference；Pinoxaden aqueous emulsion above-mentioned is sealed in tool plug test tube, in 0 ± 0.1 DEG C of constant temperature
It is stored 14 days in case, carries out cold storage.After cold storage, the oil-free analysis phenomenon of the pinoxaden aqueous emulsion of the embodiment of the present disclosure, stable system,
Compared with the pinoxaden aqueous emulsion of storage at normal temperature, indifference.
The pH test result of pinoxaden aqueous emulsion that the embodiment of the present disclosure provides shows, pinoxaden aqueous emulsion above-mentioned
The all slightly biased alkalinity of pH value, in claimed range of the aqueous emulsion development to acidity.
Using WJL-602 type laser particle size analyzer to the particle size of the pinoxaden aqueous emulsion of the embodiment of the present disclosure into
Row measurement.
The embodiment of the present disclosure has carried out the measurement of particle size to following three pinoxaden aqueous emulsions sample.
Pinoxaden aqueous emulsion 1: pinoxaden 10%；Cyclohexanone 25%；Acrylic acid copolymer sodium salt 10%；Xanthan gum
0.1%；Water supplies 100%.
Pinoxaden aqueous emulsion 2: pinoxaden 10%；Cyclohexanone 25%；Acrylic acid copolymer sodium salt 10%；Sorbitol anhydride
Monostearate 10%；Xanthan gum 0.1%；Water supplies 100%.
Pinoxaden aqueous emulsion 3: pinoxaden 10%；Cyclohexanone 25%；Sorbitan monostearate 10%；Xanthan gum
0.1%；Water supplies 100%.
Test result is shown: the D of pinoxaden aqueous emulsion 110It is 0.352 μm, D50It is 0.858 μm, D90It is 15.650 μm；
The D of pinoxaden aqueous emulsion 210It is 0.885 μm, D50It is 1.650 μm, D90It is 3.253 μm；The D of pinoxaden aqueous emulsion 310For
0.899 μm, D50It is 1.548 μm, D90It is 2.844 μm.It can be seen that the embodiment of the present disclosure from above-mentioned particle size distribution data to provide
The partial size of pinoxaden aqueous emulsion meet the manufacture claim of aqueous emulsion.
The partial size for other pinoxaden aqueous emulsions that the embodiment of the present disclosure provides and the pinoxaden aqueous emulsion of the present embodiment
Partial size it is same or similar, meet aqueous emulsion to the manufacture claim of partial size.
The embodiment of the present disclosure is using JYW-200B micro-control surface and interface automatic tension instrument to above three pinoxaden aqueous emulsion
Sample has carried out the measurement of surface tension.
Test result is shown: the surface tension value of above-mentioned pinoxaden aqueous emulsion 1 be 23.6dyn/cm, 23.9dyn/cm,
23.3dyn/cm, average value 23.6dyn/cm；The surface tension value of above-mentioned pinoxaden aqueous emulsion 2 be 19.8dyn/cm,
18.9dyn/cm, 19.3dyn/cm, average value 19.33dyn/cm；The surface tension value of above-mentioned pinoxaden aqueous emulsion 3 is
17.2dyn/cm, 17.5dyn/cm, 16.9dyn/cm, average value 17.2dyn/cm.As can be seen that embodiment of the present disclosure preparation
Obtained pinoxaden aqueous emulsion all has preferable wetting and spreading performance.
The surface tension for other pinoxaden aqueous emulsions that the embodiment of the present disclosure provides and the pinoxaden water of the present embodiment
The surface tension of emulsion is same or similar, has preferable wetting and spreading performance.
The embodiment of the present disclosure carries out above three pinoxaden aqueous emulsion sample using LVDV-2 Digital Viscometer
The measurement of viscosity.
Test result is shown: the viscosity of above-mentioned pinoxaden aqueous emulsion 1 be 86.3mPas, 85.7mPas,
85.5mPas, average value 85.83mPas；The viscosity of above-mentioned pinoxaden aqueous emulsion 2 be 82.2mPas,
92.1mPas, 79.9mPas, average value 84.73mPas；The viscosity of above-mentioned pinoxaden aqueous emulsion 3 is
89.2mPas, 91.9mPas, 90.7mPas, average value 90.30mPas.As it can be seen that three kinds of pinoxaden aqueous emulsions
Viscosity be closer to, topple over that ability is very close, preferably incline in addition, the pinoxaden aqueous emulsion of the embodiment of the present disclosure has
Property and stability.
The viscosity for other pinoxaden aqueous emulsions that the embodiment of the present disclosure provides and the pinoxaden aqueous emulsion of the present embodiment
Viscosity it is same or similar, the very similar pinoxaden aqueous emulsion of viscosity index has been prepared in the embodiment of the present disclosure, preceding
It states in range, the mass percentage of each component is adjusted, aqueous emulsion similar in available viscosity, pourability
It is good, stable system.
The pinoxaden aqueous emulsion that the embodiment of the present disclosure provides can be used for the prevention and treatment of weeds in farmland, such as in paddy field
Monocotyledon weed there is preferable control efficiency, such as barnyard grass.
Optionally, the mass concentration of the effective component of pinoxaden aqueous emulsion is 500-1000mg/kg.
In the application of controlling weeds, the mass concentration of effective component should not be too large pinoxaden aqueous emulsion, otherwise can make
At pesticide residue, the harm such as phytotoxicity, raising resistance weed occur, in addition, the mass concentration of effective component is unsuitable too low, it is no
The control efficiency to weeds can then be reduced.
The pinoxaden that the embodiment of the present disclosure provides has preferable inhibitory effect to root long and the bud length of barnyard grass seed.
Above-mentioned pinoxaden aqueous emulsion 1 and pinoxaden aqueous emulsion 2 are determined to the inhibiting effect of barnyard grass seed root long, is adopted
It uses commercially available 5% pinoxaden missible oil of medicament as comparison medicament, while blank control test is set, test result see the table below 1:
1 pinoxaden aqueous emulsion of table is to barnyard grass seed root long inhibiting effect
2 indoor virulence determination of activity result of table
As can be seen from the above Table 1, pinoxaden aqueous emulsion 1 and pinoxaden aqueous emulsion 2 are to barnyard grass seminal root with very
Good inhibiting effect.
The embodiment of the present disclosure further determines 5% pinoxaden missible oil, pinoxaden aqueous emulsion 1 and pinoxaden water and milk
EC of the agent 2 to barnyard grass seed root long50Value.Wherein, EC of the 5% pinoxaden missible oil to barnyard grass seed root long50For 156.04mg/
Kg, EC of the pinoxaden aqueous emulsion 1 to barnyard grass seed root long50For 109.70mg/kg, pinoxaden aqueous emulsion 2 is to barnyard grass seed
The EC of root long50For 91.27mg/kg.As it can be seen that the pinoxaden aqueous emulsion that the embodiment of the present disclosure provides is to barnyard grass seed root long
EC50It is close with 5% pinoxaden missible oil of comparison medicament, and it is better than comparison medicament.
Similar, other pinoxaden aqueous emulsions that the embodiment of the present disclosure provides all have preferably barnyard grass seed root long
Inhibiting effect.For example, when mass percentage of the pinoxaden in pinoxaden aqueous emulsion is 8%, 500mg/kg oxazoline
Inhibiting rate 71.21% of the careless ester aqueous emulsion to barnyard grass seed root long；1000mg/kg pinoxaden aqueous emulsion is to barnyard grass seed root long
Inhibiting rate 79.54%；When mass percentage of the pinoxaden in pinoxaden aqueous emulsion is 15%, 500mg/kg azoles
Inhibiting rate 71.88% of the quinoline grass ester aqueous emulsion to barnyard grass seed root long；1000mg/kg pinoxaden aqueous emulsion is to barnyard grass seminal root
Long inhibiting rate 79.14%.
Above-mentioned pinoxaden aqueous emulsion 1 and pinoxaden aqueous emulsion 2 inhibiting effect long to barnyard grass seed bud are determined, is adopted
It uses commercially available 5% pinoxaden missible oil of medicament as comparison medicament, while blank control test is set, test result see the table below 3:
3 pinoxaden aqueous emulsion of table is to the long inhibiting effect of barnyard grass seed bud
4 indoor virulence determination of activity result of table
As can be seen from the above Table 3, pinoxaden aqueous emulsion 1 and pinoxaden aqueous emulsion 2 to the bud of barnyard grass seed with
Good inhibiting effect.
The embodiment of the present disclosure further determines 5% pinoxaden missible oil, pinoxaden aqueous emulsion 1 and pinoxaden water and milk
The EC long to barnyard grass seed bud of agent 250Value.Wherein, the 5% pinoxaden missible oil EC long to barnyard grass seed bud50For 98.40mg/
Kg, the EC long to barnyard grass seed bud of pinoxaden aqueous emulsion 150For 92.94mg/kg, pinoxaden aqueous emulsion 2 is to barnyard grass seed bud
Long EC50For 69.67mg/kg.As it can be seen that the EC that the pinoxaden aqueous emulsion of embodiment of the present disclosure offer is long to barnyard grass seed bud50
Better than 5% pinoxaden missible oil of comparison medicament.
Similar, other pinoxaden aqueous emulsions that the embodiment of the present disclosure provides are long to barnyard grass seed bud to be all had preferably
Inhibiting effect.For example, when mass percentage of the pinoxaden in pinoxaden aqueous emulsion is 8%, 500mg/kg oxazoline
The careless ester aqueous emulsion inhibiting rate 67.84% long to barnyard grass seed bud；1000mg/kg pinoxaden aqueous emulsion is long to barnyard grass seed bud
Inhibiting rate 84.05%；When mass percentage of the pinoxaden in pinoxaden aqueous emulsion is 15%, 500mg/kg azoles
The quinoline grass ester aqueous emulsion inhibiting rate 68.94% long to barnyard grass seed bud；1000mg/kg pinoxaden aqueous emulsion is to barnyard grass seed bud
Long inhibiting rate 85.23%.
The mass fraction range of each component as described in this application not only includes two endpoint values of each range, also wraps
Include the value range of any two numerical value composition between all numerical value and both ends point value between two endpoint values.For example, oxazoline
The mass percentage of careless ester is 8-15%, and it further includes between 8-15 that 8-15 herein, which not only includes two endpoint values 8,15,
The value range (such as 10-12) of any two numerical value (such as 10,12) composition between all numerical value and 8-15.
Pinoxaden aqueous emulsion provided by the present application and its preparation method and application is not limited to arrange in above-described embodiment
The example of act.The protection scope of the application is defined by the content in claims.
Claims (10)
1. a kind of pinoxaden aqueous emulsion, which is characterized in that in terms of mass percentage, comprising:
2. aqueous emulsion according to claim 1, which is characterized in that
The solvent includes cyclohexanone.
3. aqueous emulsion according to claim 1, which is characterized in that the emulsifier includes following one or more:
Acrylic acid copolymer sodium salt, sorbitan monostearate.
4. aqueous emulsion according to claim 1, which is characterized in that
The thickener includes xanthan gum.
5. aqueous emulsion according to claim 1, which is characterized in that
The mass percentage of the emulsifier is 18-22%.
6. aqueous emulsion according to claim 3, which is characterized in that the emulsifier is acrylic acid copolymer sodium salt and sorb
Alcohol acid anhydride monostearate, by quality ratio,
Sorbitan monostearate: acrylic acid copolymer sodium salt=1:1-1.5.
7. a kind of preparation method of pinoxaden aqueous emulsion characterized by comprising
Pinoxaden is mixed with solvent, oily phase is obtained after dissolution；
Emulsifier and water are mixed, water phase is obtained；
By the oil it is mutually mixed with water after, carry out emulsification treatment, obtain pinoxaden as claimed in any one of claims 1 to 6
Aqueous emulsion.
8. preparation method according to claim 7, which is characterized in that the emulsification treatment includes:
The emulsification treatment is carried out with the revolving speed of 10000rpm, shear time is 50-70 seconds.
9. a kind of application of pinoxaden aqueous emulsion, which is characterized in that the pinoxaden aqueous emulsion is that claim 1-6 such as appoints
One Xiang Suoshu, and it is applied to controlling weeds.
10. application according to claim 9, which is characterized in that the pinoxaden aqueous emulsion is applied to prevention and treatment barnyard grass.
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Application publication date: 20191105 |