CN105145619B - A kind of aqueous emulsion of synthetic pyrethroid insecticide and preparation method thereof - Google Patents
A kind of aqueous emulsion of synthetic pyrethroid insecticide and preparation method thereof Download PDFInfo
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- CN105145619B CN105145619B CN201510399545.9A CN201510399545A CN105145619B CN 105145619 B CN105145619 B CN 105145619B CN 201510399545 A CN201510399545 A CN 201510399545A CN 105145619 B CN105145619 B CN 105145619B
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- CN
- China
- Prior art keywords
- emulsifying agent
- prepared
- aqueous emulsion
- synthetic pyrethroid
- pyrethroid insecticide
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000839 emulsion Substances 0.000 title claims abstract description 30
- 239000002728 pyrethroid Substances 0.000 title claims abstract description 24
- 239000002917 insecticide Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 44
- 239000004593 Epoxy Substances 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 19
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 19
- 150000004702 methyl esters Chemical class 0.000 claims abstract description 19
- 239000005903 Gamma-cyhalothrin Substances 0.000 claims abstract description 17
- ZXQYGBMAQZUVMI-GCMPRSNUSA-N gamma-cyhalothrin Chemical compound CC1(C)[C@@H](\C=C(/Cl)C(F)(F)F)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-GCMPRSNUSA-N 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000008346 aqueous phase Substances 0.000 claims description 21
- 239000012071 phase Substances 0.000 claims description 21
- 238000010008 shearing Methods 0.000 claims description 14
- 239000000575 pesticide Substances 0.000 claims description 13
- 238000004945 emulsification Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229940125898 compound 5 Drugs 0.000 claims description 3
- 239000002904 solvent Substances 0.000 abstract description 9
- 238000009472 formulation Methods 0.000 abstract description 3
- 231100000053 low toxicity Toxicity 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- VQXSOUPNOZTNAI-UHFFFAOYSA-N Pyrethrin I Natural products CC(=CC1CC1C(=O)OC2CC(=O)C(=C2C)CC=C/C=C)C VQXSOUPNOZTNAI-UHFFFAOYSA-N 0.000 description 6
- HYJYGLGUBUDSLJ-UHFFFAOYSA-N pyrethrin Natural products CCC(=O)OC1CC(=C)C2CC3OC3(C)C2C2OC(=O)C(=C)C12 HYJYGLGUBUDSLJ-UHFFFAOYSA-N 0.000 description 6
- VJFUPGQZSXIULQ-XIGJTORUSA-N pyrethrin II Chemical compound CC1(C)[C@H](/C=C(\C)C(=O)OC)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1 VJFUPGQZSXIULQ-XIGJTORUSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 101100512897 Caenorhabditis elegans mes-2 gene Proteins 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 229940126214 compound 3 Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- ZXQYGBMAQZUVMI-UNOMPAQXSA-N cyhalothrin Chemical compound CC1(C)C(\C=C(/Cl)C(F)(F)F)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-UNOMPAQXSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- -1 methyl aliphatic ester Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000361 pesticidal effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of aqueous emulsion of synthetic pyrethroid insecticide and preparation method thereof, the formula of the aqueous emulsion of synthetic pyrethroid insecticide is made up of according to percentage by weight the water of 3% 8% 96% gamma cyhalothrin active compound, 4% 9% epoxy aliphatic acid methyl ester, 6% emulsifying agent and surplus.The formula of the present invention collectively constitutes emulsifying agent using epoxy aliphatic acid methyl ester as solvent, emulsifying agent N 300, emulsifying agent G 100 and MES, and not only formulation stability is good, good dispersion, degradable, and low toxicity, low-residual, more environmentally friendly.
Description
Technical field
The present invention relates to pesticide production technology field, and in particular to a kind of aqueous emulsion of synthetic pyrethroid insecticide and its preparation
Method.
Background technology
Agricultural chemicals has double action to environment, it be both environment protect and the polluter of environment, therefore people from
Various aspects seek solve environmental problem caused by the formulations of pesticide.
Pesticide processing altogether during typically can all add some auxiliary agents, solvent and emulsifying agent are most attached most importance in insecticides adjuvant
Want.But traditional Pesticidal products all use some poisonous aromatic hydrocarbons organic solvents, are also one plus the emulsifying agent used
A little old kinds, therefore security difference is most of the shortcomings that dividing agricultural chemicals, the mankind and environment all bring serious harm.
As people are food-safe and the concern of Environmental security, phenomena such as being risen plus some Organic Ingredients prices,
Some environmentally friendly solvents and small toxicity, fast novel green surfactant of degrading are found in people's an urgent demand.
Pyrethrin pesticide is the current bigger classification insecticide of middle dosage both at home and abroad, but in China, registration makes at present
Missible oil still accounts for the overwhelming majority, particularly aromatic hydrocarbons organic solvent in pyrethrin pesticide preparation, and long-term use is to environmental disruption
Power is huge, and uses the problems such as dangerous without cost advantage and transport.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided one kind formula simple economy, environmental pollution be smaller,
Low cost product, stability is good, production and storing safety, the also less pyrethroid of the murder by poisoning to the producer and user
Class pesticide emulsion in water.
It is a further object to provide the preparation method of above-mentioned aqueous emulsion of synthetic pyrethroid insecticide.
The above-mentioned purpose of the present invention is achieved by following scheme：
A kind of aqueous emulsion of synthetic pyrethroid insecticide, its formula are made up of the component of following percentage by weight：
96% gamma cyhalothrin active compound 3%-8%；
Epoxy aliphatic acid methyl ester 4%-9%；
Emulsifying agent 6%；
The water of surplus.
In above-mentioned formula, the 96% gamma cyhalothrin active compound is commercially available prod, is pyrethroid agriculture of the present invention
The toxic ingredient of liquid medicine emulsion.
In above-mentioned formula, epoxy aliphatic acid methyl ester plays a part of solvent；The present inventor after experiment screening by having found ring
Solvent of the oxygen fatty acid methyl ester as aqueous emulsion of synthetic pyrethroid insecticide of the present invention, to 96% gamma cyhalothrin active compound
Solubility property is fine, and also into liquid under low temperature.
In above-mentioned formula, emulsifying agent is by emulsifying agent N-300, emulsifying agent G-100 and MES（MES）Three
Individual component is according to 1:1:1 mass ratio composition；The emulsifying agent N-300 is oil soluble emulsifying agent, and the emulsifying agent G-100 is
Hydrophilic emulsifier；The emulsifying agent N-300, emulsifying agent G-100 and MES are commercially available prod.
A kind of above-mentioned aqueous emulsion of synthetic pyrethroid insecticide, its preferred scheme being formulated is by the group of following percentage by weight
Part composition：
96% gamma cyhalothrin active compound 5%；
Epoxy aliphatic acid methyl ester 6%；
Emulsifying agent 6%；
The water of surplus.
The preparation method of aqueous emulsion of synthetic pyrethroid insecticide of the present invention uses high speed shearing emulsification method, specifically include as
Lower step：
Step 1：
It is prepared by oil phase：According to formula, added after first dissolving 96% gamma cyhalothrin active compound with epoxy aliphatic acid methyl ester
Emulsifying agent N-300 stirs, as oil phase；
It is prepared by aqueous phase：Emulsifying agent G-100 and MES are dissolved in water, then turned with high-speed shearing machine with 3000r/min
Speed, 5min is sheared, then obtains homogeneous aqueous phase；
Step 2：
Aqueous phase prepared by step 1 is slowly dropped in oil phase prepared by step 1 at low speeds, is filled after being added dropwise
Divide stirring 20min, then sheared 10min with 3000r/min rotating speed with high-speed shearing machine, then required plan deinsectization is prepared
Pyrethrin pesticide aqueous emulsion.
In above-mentioned preparation method, in the step 2, aqueous phase prepared by step 1 is slowly dropped to step at low speeds
In rapid 1 oil phase prepared, its low-speed conditions is 200r/min.
Compared with prior art, the present invention has the advantages that：
1. a kind of aqueous emulsion of synthetic pyrethroid insecticide of the present invention, its composition in being formulated is active compound, solvent, emulsifying agent and
Water, formula is simple, and cost is cheap；
2. epoxy aliphatic acid methyl ester is a kind of mixed methyl aliphatic ester prepared with animal and plant fat with methanol reaction, tool
There is the characteristics of biodegradable fast and small toxicity, and have the series of advantages such as environment-friendly, storing safety, flash-point height, the present invention
By the experiment screening to a large amount of solvents, final choice epoxy aliphatic acid methyl ester is used as the solvent in formula, is not only able to reality
Existing solvent ensure that product is more easy to decomposition, low-residual, low toxicity, more environmentally friendly to effective dissolubility of active compound；
3. the emulsifying agent of inventive formulation uses emulsifying agent N-300, emulsifying agent G-100 and MES combination, wherein MES exists
In formula emulsifying agent and play an important role；The present inventor compared for adding MES and not add MES experiment discovery, not have
Although addition MES product heat storage stability, cold storage stability all meet standard, dispersiveness also has mobility not reach
It is required that and the dispersiveness of pesticide emulsion in water and mobility are obtained for raising after MES is added, while heat storage stability and cold
Storage stability also all meets national standard；
4. preparation method is selected and optimized present invention is alternatively directed to be formulated, final choice high speed emulsion process, the party
Method is filled with energy to the system of the oil phase in formula and aqueous phase composition, improves the efficient cyhalothrin of pesticide active ingredient 96%
Decentralization in emulsion of ester active compound and other components, it is scattered evenly, stability is more preferable.
Embodiment
The present invention is further described through with reference to specific embodiment, but specific embodiment is not appointed to the present invention
What is limited.
Embodiment 1：
The aqueous emulsion of synthetic pyrethroid insecticide of the present embodiment, its formula are made up of the component of following percentage by weight：
96% gamma cyhalothrin active compound 3%；
Epoxy aliphatic acid methyl ester 9%；
Emulsifying agent N-300 2%；
Emulsifying agent G-100 2%；
MES 2%；
The water of surplus.
In above-mentioned formula, the 96% gamma cyhalothrin active compound, epoxy aliphatic acid methyl ester, emulsifying agent N-300, emulsification
Agent G-100 and MES are commercially available prod.
The preparation method of above-mentioned aqueous emulsion of synthetic pyrethroid insecticide uses high speed shearing emulsification method, specifically includes following step
Suddenly：
Step 1：
It is prepared by oil phase：According to formula, added after first dissolving 96% gamma cyhalothrin active compound with epoxy aliphatic acid methyl ester
Emulsifying agent N-300 stirs, as oil phase；
It is prepared by aqueous phase：Emulsifying agent G-100 and MES are dissolved in water, then turned with high-speed shearing machine with 3000r/min
Speed, 5min is sheared, then obtains homogeneous aqueous phase；
Step 2：
Aqueous phase prepared by step 1 is slowly dropped in oil phase prepared by step 1 at low speeds, is filled after being added dropwise
Divide stirring 20min, then sheared 10min with 3000r/min rotating speed with high-speed shearing machine, then required plan deinsectization is prepared
Pyrethrin pesticide aqueous emulsion.
In above-mentioned preparation method, in the step 2, aqueous phase prepared by step 1 is slowly dropped to step at low speeds
In rapid 1 oil phase prepared, its low-speed conditions is 200r/min.
Embodiment 2：
A kind of aqueous emulsion of synthetic pyrethroid insecticide of the present embodiment, its formula are the component groups by following percentage by weight
Into：
96% gamma cyhalothrin active compound 4%；
Epoxy aliphatic acid methyl ester 8%；
Emulsifying agent N-300 2%；
Emulsifying agent G-100 2%；
MES 2%；
The water of surplus.
In above-mentioned formula, the 96% gamma cyhalothrin active compound, epoxy aliphatic acid methyl ester, emulsifying agent N-300, emulsification
Agent G-100 and MES are commercially available prod.
A kind of preparation method of above-mentioned aqueous emulsion of synthetic pyrethroid insecticide uses high speed shearing emulsification method, specifically include as
Lower step：
Step 1
It is prepared by oil phase：According to formula, added after first dissolving 96% gamma cyhalothrin active compound with epoxy aliphatic acid methyl ester
Emulsifying agent N-300 stirs, as oil phase；
It is prepared by aqueous phase：Emulsifying agent G-100 and MES are dissolved in water, then turned with high-speed shearing machine with 3000r/min
Speed, 5min is sheared, then obtains homogeneous aqueous phase；
Step 2
Aqueous phase prepared by step 1 is slowly dropped in oil phase prepared by step 1 at low speeds, is filled after being added dropwise
Divide stirring 20min, then sheared 10min with 3000r/min rotating speed with high-speed shearing machine, then required plan deinsectization is prepared
Pyrethrin pesticide aqueous emulsion.
In above-mentioned preparation method, in the step 2, aqueous phase prepared by step 1 is slowly dropped to step at low speeds
In rapid 1 oil phase prepared, its low-speed conditions is 200r/min.
Embodiment 3：
The aqueous emulsion of synthetic pyrethroid insecticide of the present embodiment, its formula are made up of the component of following percentage by weight：
96% gamma cyhalothrin active compound 5%；
Epoxy aliphatic acid methyl ester 6%；
Emulsifying agent N-300 2%；
Emulsifying agent G-100 2%；
MES 2%；
The water of surplus.
In above-mentioned formula, the 96% gamma cyhalothrin active compound, epoxy aliphatic acid methyl ester, emulsifying agent N-300, emulsification
Agent G-100 and MES are commercially available prod.
The preparation method of above-mentioned aqueous emulsion of synthetic pyrethroid insecticide uses high speed shearing emulsification method, specifically includes following step
Suddenly：
Step 1：
It is prepared by oil phase：According to formula, added after first dissolving 96% gamma cyhalothrin active compound with epoxy aliphatic acid methyl ester
Emulsifying agent N-300 stirs, as oil phase；
It is prepared by aqueous phase：Emulsifying agent G-100 and MES are dissolved in water, then turned with high-speed shearing machine with 3000r/min
Speed, 5min is sheared, then obtains homogeneous aqueous phase；
Step 2：
Aqueous phase prepared by step 1 is slowly dropped in oil phase prepared by step 1 at low speeds, is filled after being added dropwise
Divide stirring 20min, then sheared 10min with 3000r/min rotating speed with high-speed shearing machine, then required plan deinsectization is prepared
Pyrethrin pesticide aqueous emulsion.
In above-mentioned preparation method, in the step 2, aqueous phase prepared by step 1 is slowly dropped to step at low speeds
In rapid 1 oil phase prepared, its low-speed conditions is 200r/min.
Claims (3)
- A kind of 1. aqueous emulsion of synthetic pyrethroid insecticide, it is characterised in that the formula of the aqueous emulsion of synthetic pyrethroid insecticide be by The component composition of following percentage by weight：96% gamma cyhalothrin active compound 5%；Epoxy aliphatic acid methyl ester 6%；Emulsifying agent 6%；The water of surplus；The emulsifying agent is according to 1 by emulsifying agent N-300, emulsifying agent G-100 and MES:1:1 mass ratio Composition.
- 2. the preparation method of aqueous emulsion of synthetic pyrethroid insecticide described in claim 1, it is characterised in that the preparation method includes Following steps：Step 1：It is prepared by oil phase：According to formula, emulsification is added after first dissolving 96% gamma cyhalothrin active compound with epoxy aliphatic acid methyl ester Agent N-300 stirs, as oil phase；It is prepared by aqueous phase：Emulsifying agent G-100 and MES are dissolved in water, then with high-speed shearing machine with 3000r/ Min rotating speed, 5min is sheared, then obtains homogeneous aqueous phase；Step 2：Aqueous phase prepared by step 1 is slowly dropped in oil phase prepared by step 1 at low speeds, is fully stirred after being added dropwise 20min is mixed, then 10min is sheared with 3000r/min rotating speed with high-speed shearing machine, then required pyrethroid is prepared Class pesticide emulsion in water.
- 3. the preparation method of aqueous emulsion of synthetic pyrethroid insecticide according to claim 2, it is characterised in that the step 2 In, aqueous phase prepared by step 1 is slowly dropped in oil phase prepared by step 1 at low speeds, and its low-speed conditions is 200r/ min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399545.9A CN105145619B (en) | 2015-07-09 | 2015-07-09 | A kind of aqueous emulsion of synthetic pyrethroid insecticide and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399545.9A CN105145619B (en) | 2015-07-09 | 2015-07-09 | A kind of aqueous emulsion of synthetic pyrethroid insecticide and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105145619A CN105145619A (en) | 2015-12-16 |
| CN105145619B true CN105145619B (en) | 2018-01-12 |
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| CN201510399545.9A Expired - Fee Related CN105145619B (en) | 2015-07-09 | 2015-07-09 | A kind of aqueous emulsion of synthetic pyrethroid insecticide and preparation method thereof |
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| CN109874786B (en) * | 2019-04-23 | 2021-05-14 | 汕头市深泰新材料科技发展有限公司 | High molecular emulsifier for decomposing biological pesticide in water-resistant emulsion and application thereof |
| CN112219857A (en) * | 2020-10-28 | 2021-01-15 | 泰兴市新宏阳化工有限公司 | Cyhalothrin aqueous emulsion and low-energy emulsification preparation method thereof |
| CN113875750B (en) * | 2021-10-21 | 2022-12-13 | 宁德师范学院 | Pesticide emulsion in water and preparation method thereof |
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| CN101054354B (en) * | 2007-06-14 | 2011-09-28 | 浙江赞宇科技股份有限公司 | Process for preparing methyl sodiosul foaliphatate |
| CN101445768A (en) * | 2008-12-24 | 2009-06-03 | 浙江赞宇科技股份有限公司 | Liquid detergent containing fatty acid methyl ester sulfonate |
| CN101606540A (en) * | 2009-07-21 | 2009-12-23 | 杨小娇 | High-performance cyhalothrin pesticide aqueous emulsion and preparation method thereof |
| CN101790978B (en) * | 2009-12-02 | 2013-03-27 | 深圳诺普信农化股份有限公司 | Pesticide emulsion in water and preparation method thereof |
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