CN114208827A - High-electrolyte pesticide microemulsion auxiliary agent - Google Patents

High-electrolyte pesticide microemulsion auxiliary agent Download PDF

Info

Publication number
CN114208827A
CN114208827A CN202111610342.1A CN202111610342A CN114208827A CN 114208827 A CN114208827 A CN 114208827A CN 202111610342 A CN202111610342 A CN 202111610342A CN 114208827 A CN114208827 A CN 114208827A
Authority
CN
China
Prior art keywords
microemulsion
polyoxyethylene ether
acid amide
auxiliary agent
amide propyl
Prior art date
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.)
Granted
Application number
CN202111610342.1A
Other languages
Chinese (zh)
Other versions
CN114208827B (en
Inventor
朱方军
李洪成
赵灵鑫
张豫红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Kehongda Chemical Co ltd
Original Assignee
Sichuan Kehongda Group Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Kehongda Group Co ltd filed Critical Sichuan Kehongda Group Co ltd
Priority to CN202111610342.1A priority Critical patent/CN114208827B/en
Publication of CN114208827A publication Critical patent/CN114208827A/en
Application granted granted Critical
Publication of CN114208827B publication Critical patent/CN114208827B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/30Biocides, 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 characterised by the surfactants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION 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
    • A01N25/00Biocides, 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
    • A01N25/02Biocides, 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
    • A01N25/04Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

The application provides a high-electrolyte pesticide microemulsion auxiliary agent, and belongs to the technical field of pesticides. The microemulsion auxiliary agent is composed of 30-60 wt% of C16~22Fatty acid amide propyl dimethylamine, 5-15 wt% of C6~10Fatty acid amide propyl dimethylamine, fatty alcohol polyoxyethylene ether with the weight percentage of 1-15 percent, polystyrylphenol polyoxyethylene ether with the weight percentage of 1-15 percent and a pH regulator. This application is achieved by mixing C16~22Fatty acid amide propyl dimethylamine, C6~10The microemulsion auxiliary agent obtained by compounding the fatty acid amide propyl dimethylamine, the fatty alcohol-polyoxyethylene ether and the polystyrylphenol polyoxyethylene ether can not only enable the preparation to form a homogeneous transparent microemulsion and improve the emulsibility and the salt resistance of the high-electrolyte pesticide, but also has higher universality, is not only suitable for the preparation of the high-electrolyte pesticide, but also suitable for the preparation of other microemulsion systemsAnd (4) preparing the preparation.

Description

High-electrolyte pesticide microemulsion auxiliary agent
Technical Field
The application relates to the field of pesticide auxiliary preparation, in particular to a high-electrolyte pesticide microemulsion auxiliary.
Background
With the continuous development of agriculture, farmers also apply a large amount of high-tech products in agricultural production, and a series of chemicals such as biological pesticides, pesticide mixtures and the like are widely applied, wherein the most popular pesticide product is herbicide, and the quantity of the herbicide sold in the pesticide is always the top. The herbicides on the market at present are water-soluble herbicides and fat-soluble herbicides. Water-soluble herbicides such as glyphosate, glufosinate-ammonium and paraquat can be directly processed into aqueous preparations for use, and many existing water-soluble pesticide preparations such as 30% glyphosate aqueous preparations and 18% glufosinate aqueous preparations are often required to be compounded with some oil-soluble pesticides to prepare microemulsions due to the resistance generated by long-term application or the problem of broad-spectrum weed control of the existing water-soluble pesticide preparations.
However, the existing pesticide has the problem of phase separation of the prepared pesticide and the corresponding pesticide effect is reduced because the raw materials simultaneously comprise oil and water phases during compounding. Aiming at the technical problem, the stability of the pesticide is improved by adding a microemulsion auxiliary agent during compounding by the technical personnel in the field. The commonly used microemulsion auxiliary agents include alkylphenol polyoxyethylene and phosphate ester thereof, polystyryl polyoxyethylene and phosphate ester thereof, calcium alkyl benzene sulfonate and the like. However, for the preparation of high electrolyte pesticides, because these common microemulsion aids are generally designed according to specific pesticides, the problems of poor stability and poor versatility exist, and especially when being applied to high electrolyte preparations, the high electrolyte pesticides cannot have better stability, and even are difficult to form microemulsions. The high electrolyte pesticide always has the problems of unstable long-term storage and reduced pesticide effect.
Therefore, a new microemulsion auxiliary agent is needed in the technical field to solve the problem of poor stability of high-electrolyte pesticides.
Disclosure of Invention
In order to solve the problems, the application provides a high-electrolyte pesticide microemulsion auxiliary agent. The specific contents are as follows:
in a first aspect, the invention provides a high electrolyte pesticide microemulsion auxiliary agent, which consists of C16~22Fatty acid amide propyl dimethylamine, C6~10Fatty acid amide propyl dimethylamine, fatty alcohol polyoxyethylene ether, polystyrylphenol polyoxyethylene ether and a pH regulator;
wherein, the C16~2230 to 60 weight percent of fatty acid amide propyl dimethylamine, and C6~10Fatty acid amide propyl dimethylamineThe weight percentage of the polyoxyethylene fatty alcohol ether is 5-15%, the weight percentage of the fatty alcohol-polyoxyethylene ether is 1-15%, and the weight percentage of the polystyrylphenol polyoxyethylene ether is 1-15%.
Preferably, said C16~22The fatty acid amide propyl dimethylamine is cocamidopropyl dimethylamine.
Preferably, said C6~10The fatty acid amide propyl dimethylamine is caprylic acid amide propyl dimethylamine.
Preferably, the pH adjuster is an organic acid.
Preferably, the organic acid is acetic acid.
Preferably, the pH value of the microemulsion auxiliary agent is 5-8.
In a second aspect, the present invention provides a method for preparing the microemulsion auxiliary agent according to the first aspect, including the following steps:
(1) c is to be16~22Fatty acid amide propyl dimethylamine, C6~10Mixing acid amide propyl dimethylamine, fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether, and uniformly stirring for later use;
(2) and (2) slowly adding the organic acid into the mixed system prepared in the step (1) under the stirring condition, and uniformly stirring to obtain the microemulsion auxiliary agent.
The embodiment of the invention discloses a microemulsion auxiliary agent of a high electrolyte pesticide, which is prepared from 30-60 wt% of C16~22Fatty acid amide propyl dimethylamine, 5-15 wt% of C6~10Fatty acid amide propyl dimethylamine, 1-15% fatty alcohol polyoxyethylene ether, 1-15% polystyrylphenol polyoxyethylene ether and pH regulator. This application is achieved by mixing C16~22Fatty acid amide propyl dimethylamine, C6~10The microemulsion auxiliary agent obtained by compounding the fatty acid amide propyl dimethylamine, the fatty alcohol-polyoxyethylene ether and the polystyrylphenol polyoxyethylene ether can not only enable the preparation to form homogeneous transparent microemulsion, but also greatly improve the emulsibility and the salt resistance of the high-electrolyte pesticide. Due to the fact thatTherefore, the microemulsion auxiliary agent provided by the application can effectively solve the problem of poor stability of a high-electrolyte pesticide.
Compared with the existing microemulsion auxiliary agent, in order to realize high stability of high electrolyte pesticide, C is selected from the microemulsion auxiliary agent provided by the application16~22Fatty acid amide propyl dimethylamine (such as cocamidopropyl dimethylamine) can be completely dissolved in water as a cationic surfactant under acidic or weakly acidic conditions, and can not be separated out and separated out in a high electrolyte. Thus, C is16~22When the fatty acid amide propyl dimethylamine is matched with the polystyrylphenol polyoxyethylene ether nonionic surfactant with higher emulsibility for use, the emulsibility can be obviously improved. At the same time, short-chain fatty acid amides (e.g. C)6~10Fatty acid amide propyl dimethylamine) also has very good salt tolerance, can not only solubilize other surfactants (such as fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether) which are not high-salt tolerant, but also enable a microemulsion system to have lower interfacial tension, and easily disperse an oil phase into tiny droplets to form a microemulsion. Therefore, the microemulsion auxiliary agent provided by the application can effectively improve the stability of the high electrolyte pesticide and keep the good pesticide effect of the high electrolyte.
In addition, the long-carbon-chain fatty acid amide propyl dimethylamine and the short-carbon-chain fatty acid amide are compounded with the acid-alkali-resistant fatty alcohol-polyoxyethylene ether and the polystyrylphenol polyoxyethylene ether, so that the long-carbon-chain fatty acid amide propyl dimethylamine microemulsion is high in universality, and is suitable for the preparation of high-electrolyte pesticides and the preparation of other microemulsion systems. Therefore, the microemulsion auxiliary agent provided by the application also effectively solves the problem of poor universality of the existing microemulsion auxiliary agent, can greatly reduce the development difficulty and the operation cost of the preparation, and has wide application prospect in the field.
Detailed Description
The technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following examples are provided to further understand the present invention, not to limit the scope of the present invention, but to provide the best mode, not to limit the content and the protection scope of the present invention, and any product similar or similar to the present invention, which is obtained by combining the present invention with other prior art features, falls within the protection scope of the present invention.
The specific experimental procedures or conditions not specified in the examples can be performed according to the procedures or conditions of the conventional experimental procedures described in the prior art in this field. The reagents and other instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
In order to solve the problems of poor stability and poor universality existing in the existing pesticide, the technical concept provided by the inventor of the invention is as follows: at C16~22Fatty acid amide propyl dimethylamine and C6~10Fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether with high dispersibility and emulsibility are compounded on the basis of the fatty acid amide propyl dimethylamine to improve the salt resistance, the emulsification effect and the universality of the microemulsion auxiliary agent, so that the stability of the system can be improved when the high-electrolyte pesticide is prepared, and the preparation method is also suitable for preparation of various microemulsion systems. Based on the technical conception, the specific implementation contents of the invention are as follows:
in a first aspect, the embodiments of the present invention provide a microemulsion adjuvant for a high electrolyte pesticide. The microemulsion auxiliary agent consists of C16~22Fatty acid amide propyl dimethylamine, C6~10Fatty acid amide propyl dimethylamine, fatty alcohol polyoxyethylene ether, polystyrylphenol polyoxyethylene ether and a pH regulator.
Wherein, C16~22Fatty acid amide propyl dimethylamine 30-60 wt%, C6~10The weight percentage of the fatty acid amide propyl dimethylamine is 5 percent to 15 percent, and the weight percentage of the fatty alcohol-polyoxyethylene ether is 1 percent to 15 percentThe weight percentage of the polystyrylphenol polyoxyethylene ether is 1-15%. The usage amount of the pH regulator in the specific implementation is determined by the pH value of the microemulsion auxiliary agent, and specifically comprises the following steps: and adjusting the pH value of the microemulsion auxiliary agent to 5-8, wherein the required dosage is the dosage of the pH regulator in the microemulsion auxiliary agent. In practical application, the usage amount of the acetic acid is about 15% -25%.
In the microemulsion auxiliary provided in the embodiment of the application, one is C16~22The fatty acid amide propyl dimethylamine has extremely high salt resistance after being neutralized by a pH regulator, and has good emulsibility in a high electrolyte solution; secondly, due to C6~10The acid amide propyl dimethylamine has shorter carbon chain, has very good salt tolerance after being neutralized by the pH regulator, can increase the mutual solubility of the surfactant which is not high-salt tolerant and other components, has lower interfacial tension, and can be used as cosurfactant. Therefore, the microemulsion auxiliary agent provided by the embodiment of the application can be used for microemulsion preparations compounded by glyphosate, glufosinate and the like and oil-soluble pesticides so as to improve the stability of high-electrolyte pesticides.
In particular, C is preferred16~22The fatty acid amide propyl dimethylamine is cocamidopropyl dimethylamine. Cocamidopropyl dimethylamine: after neutralization with acid, the salt tolerance is very good, and the emulsifying property is good in high electrolyte solution.
In particular, C is preferred6~10The fatty acid amide propyl dimethylamine is caprylic acid amide propyl dimethylamine. Caprylic acid amidopropyl dimethylamine: because of the short carbon chain, the salt tolerance is very good after acid neutralization, the surfactant which is not high-salt tolerant can be solubilized, and the interfacial tension is low, so that the surfactant can be used as a cosurfactant.
The fatty alcohol-polyoxyethylene ether is used as a dispersing agent and a wetting agent, can ensure that the liquid medicine is automatically dispersed when diluted, and can wet a target when the liquid medicine is applied. The polystyrylphenol polyoxyethylene ether is used as a very excellent emulsifier, and hydrophobic groups of the polystyrylphenol polyoxyethylene ether firmly adsorb an oil phase, so that a stable emulsion is easily formed.
In the embodiment, the fatty alcohol-polyoxyethylene ether and the polystyrylphenol polyoxyethylene ether are selected as the nonionic surfactant, and based on the dispersibility and wettability of the fatty alcohol-polyoxyethylene ether, the liquid medicine can be automatically dispersed when diluted, and the liquid medicine can wet a target when applied; the hydrophobic group based on polystyrylphenol polyoxyethylene ether can firmly adsorb an oil phase, and is favorable for forming stable emulsion. Therefore, the microemulsion auxiliary agent provided by the application can be used for ensuring the stability of a pesticide microemulsion system and accelerating the rapid formation of the pesticide microemulsion system during pesticide preparation.
In addition, because fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether are not resistant to high salt per se, the application is similar to the method for preparing the fatty alcohol-polyoxyethylene ether16~22Fatty acid amide propyl dimethylamine and C6~10After the fatty acid amide propyl dimethylamine is compounded, under the neutralization action of a pH regulator, the fatty acid amide propyl dimethylamine not only has high-salt resistance, but also shows excellent emulsibility in an electrolyte solution, and is easy to form stable microemulsion.
In particular embodiments, the preferred pH adjusting agent is an organic acid, such as acetic acid.
In the embodiment, organic acid is utilized for neutralization, the obtained microemulsion auxiliary agent is an organic phase, the microemulsion auxiliary agent serving as one phase has high stability, and the components do not react after the organic acid is neutralized, so that the microemulsion auxiliary agent provided by the embodiment has high stability and can be stored for a long time.
The microemulsion auxiliary agent provided by the embodiment can be used for microemulsion preparations compounded by glyphosate, glufosinate and the like and oil-soluble pesticides, the problems of unstable storage and reduced efficacy of the pesticides for a long time are solved, and the utilization rate of the pesticides is improved. In addition, the microemulsion auxiliary agent provided by the embodiment can be used for developing high electrolyte pesticides, has high universality, and solves the problem of poor universality of the microemulsion auxiliary agent.
In a second aspect, the embodiment of the present invention provides a method for preparing the microemulsion adjuvant described in the first aspect, including the following steps:
(1) c is to be16~22Fatty acid amide propyl dimethylamine, C6~10Fatty acid amide propylMixing dimethyl amine, fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether, and uniformly stirring for later use;
(2) and (2) slowly adding the organic acid into the mixed system prepared in the step (1) under the stirring condition, and uniformly stirring to obtain the microemulsion auxiliary agent.
The microemulsion auxiliary agent provided by the embodiment has a simple preparation process, and therefore, has extremely high practicability.
In order to make the present invention better understood by those skilled in the art, the microemulsion adjuvant for high electrolyte pesticides provided by the present invention will be illustrated by a plurality of specific examples.
Example 1
Weighing 50 parts of cocamidopropyl dimethylamine, 10 parts of caprylic acid amidopropyl dimethylamine, 10 parts of fatty alcohol-polyoxyethylene ether AEO-7 and 5 parts of polystyrylphenol polyoxyethylene ether, and uniformly stirring and mixing for later use; and weighing 25 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Example 2
Weighing 35 parts of cocamidopropyl dimethylamine, 15 parts of caprylic acid amidopropyl dimethylamine, 15 parts of fatty alcohol-polyoxyethylene ether AEO-7 and 15 parts of polystyrylphenol polyoxyethylene ether, and uniformly stirring and mixing for later use; and weighing 20 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Example 3
Weighing 60 parts of cocamidopropyl dimethylamine, 10 parts of caprylic acid amidopropyl dimethylamine, 10 parts of fatty alcohol-polyoxyethylene ether AEO-5 and 10 parts of polystyrylphenol polyoxyethylene ether, and uniformly stirring and mixing for later use; weighing 10 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 1:
weighing 60 parts of cocamidopropyl dimethylamine, 10 parts of fatty alcohol-polyoxyethylene ether AEO-7 and 5 parts of polystyrylphenol polyoxyethylene ether, and uniformly stirring and mixing for later use; and weighing 25 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 2:
weighing 50 parts of cocamidopropyl dimethylamine, 10 parts of caprylic acid amidopropyl dimethylamine and 15 parts of polystyrylphenol polyoxyethylene ether, and uniformly stirring and mixing for later use; and weighing 25 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 3:
weighing 50 parts of cocamidopropyl dimethylamine, 10 parts of caprylic acid amidopropyl dimethylamine and 15 parts of fatty alcohol-polyoxyethylene ether AEO-7, and uniformly stirring and mixing for later use; and weighing 25 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 4:
weighing 60 parts of caprylic acid amide propyl dimethylamine and 10 parts of fatty alcohol-polyoxyethylene ether AEO-5 parts of polystyrylphenol polyoxyethylene ether, and uniformly stirring and mixing for later use; and weighing 25 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 5:
and (2) weighing 60 parts of fatty alcohol-polyoxyethylene ether AEO-7 and 40 parts of polystyrylphenol polyoxyethylene ether, uniformly stirring and mixing for later use, slowly adding the weighed acetic acid into the mixed system under the stirring condition, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 6:
weighing 60 parts of cocamidopropyl dimethylamine and 15 parts of caprylic acid amidopropyl dimethylamine, and uniformly stirring and mixing for later use; and weighing 25 parts of acetic acid, slowly adding the weighed acetic acid into the mixed system under the condition of stirring, and uniformly stirring to obtain the microemulsion auxiliary agent.
Comparative example 7:
the cocamidopropyl dimethylamine is directly used as a microemulsion auxiliary agent.
Comparative example 8:
the caprylic acid amide propyl dimethylamine is directly used as a microemulsion auxiliary agent.
Comparative example 9:
directly using polystyrylphenol polyoxyethylene ether as a microemulsion auxiliary agent.
Comparative example 10:
the fatty alcohol-polyoxyethylene ether AEO-7 is directly used as a microemulsion auxiliary agent.
Comparative example 11
The comparative example used the same starting materials and amounts as in example 1, except that: cocamidopropyl dimethylamine and caprylic amidopropyl dimethylamine were replaced with dodecyl dimethyl tertiary amine, which is commonly used in the art.
Comparative example 12
The comparative example used the same starting materials and amounts as in example 1, except that: the fatty alcohol polyoxyethylene ether AEO-7 and the polystyrylphenol polyoxyethylene ether are replaced by tallow amine polyoxyethylene ether (5EO) which is commonly used in the field.
Comparative example 13
The comparative example used the same starting materials and amounts as in example 1, except that: the fatty alcohol polyoxyethylene ether AEO-7 and the polystyrylphenol polyoxyethylene ether are replaced by cocoamine polyoxyethylene ether (2EO) which is commonly used in the field.
1. Stability test
1.1 test methods: the microemulsion auxiliary agents obtained in the above examples 1 to 3 and comparative examples 1 to 13 are used for preparation of a preparation. The specific contents are as follows:
application example 1
The raw materials used are: 30% of glyphosate, 12% of isopropylamine, 1% of fluoroglycofen-ethyl, 150# 4% of solvent oil, 12% of the microemulsion auxiliary obtained in example 1 and the balance of water.
The preparation operation is as follows: adding glyphosate into water, then dropwise adding isopropylamine, and completely dissolving to obtain a water phase for later use; completely dissolving fluoroglycofen-ethyl in solvent oil No. 150, adding the microemulsion auxiliary agent obtained in the example 1, and uniformly stirring to obtain an oil phase; adding the oil phase into the water phase, stirring until the oil phase is transparent to obtain the glyphosate ethyl carboxylate pesticide, and adjusting the pH of the preparation to 5-6.
Application example 2
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 1.
The preparation operation is as follows: adding glyphosate into water, adding dropwise isopropylamine, and dissolving to obtain a water phase for later use; dissolving fluoroglycofen-ethyl in solvent oil No. 150 completely, adding the microemulsion auxiliary agent obtained in the corresponding comparative example, and uniformly stirring to obtain an oil phase; and adding the oil phase into the water phase, stirring, and adjusting the pH of the preparation to 5-6 to obtain the corresponding herbicide.
Application example 3
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 2. The preparation method was the same as in application example 2.
Application example 4
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion adjuvant used was 12% of the microemulsion adjuvant obtained in comparative example 3. The preparation method was the same as in application example 2.
Application example 5
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 4. The preparation method was the same as in application example 2.
Application example 6
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 5. The preparation method was the same as in application example 2.
Application example 7
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 6. The preparation method was the same as in application example 2.
Application example 8
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 7. The preparation method was the same as in application example 2.
Application example 9
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 8. The preparation method was the same as in application example 2.
Application example 10
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 9. The preparation method was the same as in application example 2.
Application example 11
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 10. The preparation method was the same as in application example 2.
Application example 12
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion aid used was the microemulsion aid obtained in comparative example 11. The preparation method was the same as in application example 1.
Application example 13
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion auxiliary used was the microemulsion auxiliary obtained in comparative example 12. The preparation method was the same as in application example 1.
Application example 14
The raw materials and the dosage ratio of the application example are similar to those of the application example 1, and the differences are as follows: the microemulsion aid used was the microemulsion aid obtained in comparative example 13. The preparation method was the same as in application example 1.
1.2 analysis of test results
The stability test was performed on the herbicides prepared in application examples 1 to 14. The test method comprises the following steps: the samples prepared in the application examples are divided into 5 equal parts, and are respectively placed in different temperature environments for 15 days to carry out stability test, and the appearance state of the samples is observed. Specific test results are shown in table 1.
TABLE 1 stability of the microemulsion systems obtained after different microemulsion adjuvant formulations
Figure BDA0003434679200000101
Figure BDA0003434679200000111
In table 1, "-" indicates a layer separation, and "appearance" in table 1 indicates an appearance state immediately after the pesticide was prepared.
As shown in the results tested in the embodiments 1 to 11 in the above table 1, by adopting the technical scheme of the invention, when the microemulsion auxiliary agent is obtained by compounding cocoamidopropyl dimethylamine, caprylamidopropyl dimethylamine, fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether according to a certain proportion, the stability of the pesticide can be improved when the microemulsion auxiliary agent is used in a high-electrolyte pesticide preparation, and the microemulsion auxiliary agent has excellent stabilizing effect at high temperature and low temperature; however, when the cocoamidopropyl dimethylamine and the caprylic amidopropyl dimethylamine are not compounded with the fatty alcohol-polyoxyethylene ether and the polystyrylphenol polyoxyethylene ether, although one or more of the cocoamidopropyl dimethylamine and the caprylic amidopropyl dimethylamine are lacked, the obtained microemulsion auxiliary agent can not be used in a high-electrolyte pesticide preparation to obtain a stable high-electrolyte pesticide (even if a transparent system can be obtained in the preparation, as shown in application example 3, the microemulsion auxiliary agent still becomes turbid at low temperature and high temperature, namely, the low-temperature stability and the high-temperature stability are poor).
As shown in the results of the test of example 12 in table 1 above, when the microemulsion adjuvant obtained by replacing both cocamidopropyl dimethylamine and caprylic acid amidopropyl dimethylamine in the technical scheme of the present invention with dodecyl dimethyl tertiary amine is used in a high electrolyte pesticide formulation, the obtained microemulsion system can obtain a transparent system when the formulation is prepared, but becomes turbid below 10 ℃, i.e. the obtained microemulsion system has no low-temperature stability.
As shown in the results of the tests of the examples 13 and 14 in the above table 1, when the microemulsion auxiliary agent obtained by replacing both the fatty alcohol polyoxyethylene ether AEO-7 and the polystyrylphenol polyoxyethylene ether in the technical scheme of the present invention with the tallow amine polyoxyethylene ether (5EO) or the coconut amine polyoxyethylene ether (2EO) is used in a high electrolyte pesticide formulation, the obtained microemulsion system can only obtain a transparent system at normal temperature (about 25 ℃), and the transparent system becomes turbid in a high temperature environment above 40 ℃), i.e., the obtained microemulsion system does not have high temperature stability.
The data of the application examples show that when the high-electrolyte pesticide is prepared, the high-electrolyte pesticide can have excellent high-temperature stability and low-temperature stability at the same time by using the microemulsion auxiliary agent provided by the invention, and in the formula of the microemulsion auxiliary agent for the high-electrolyte pesticide provided by the invention, the high-electrolyte pesticide can have the high-temperature stability and the low-temperature stability only by mutually cooperating and lacking the components, if one or more of the components are removed, or if the tertiary amine or vinyl ether in the formula is replaced by other tertiary amine or nonionic surfactant, the obtained auxiliary agent cannot achieve the technical effect of the microemulsion auxiliary agent provided by the invention.
2. General test
2.1 test methods: the microemulsion auxiliary agents prepared in examples 1 to 3 were added to different pesticide systems, respectively, and the specific application methods were as follows:
application example 15
The raw materials used are: 30% of glyphosate, 12% of isopropylamine, 2% of fluoroglycofen-ethyl, 150# 12% of solvent oil, 15% of the microemulsion auxiliary agent obtained in example 1 and the balance of water. The preparation method was the same as in application example 1.
Application example 16
The raw materials used are: 30% of glyphosate, 12% of isopropylamine, 2% of fluoroglycofen-ethyl, 150# 12% of solvent oil, 15% of the microemulsion auxiliary agent obtained in example 2 and the balance of water. The preparation method was the same as in application example 1.
Application example 17
The raw materials used are: 30% of glyphosate, 12% of isopropylamine, 2% of fluoroglycofen-ethyl, 150# 12% of solvent oil, 15% of the microemulsion auxiliary agent obtained in example 3 and the balance of water. The preparation method was the same as in application example 1.
Application example 18
The raw materials used are: 20% of glufosinate-ammonium, 2.1% of quizalofop-p-ethyl, 0.9% of fluoroglycofen-ethyl, 150# 16% of solvent oil, 28% of the microemulsion auxiliary agent obtained in example 1 and the balance of water. The preparation method was the same as in application example 1.
Application example 19
The raw materials used are: 30% of glufosinate-ammonium, 1% of fluoroglycofen-ethyl, 150# 4% of solvent oil, 18% of the microemulsion auxiliary obtained in example 1 and the balance of water. The preparation method was the same as in application example 1.
Application example 20
The raw materials used are: the microemulsion additive comprises 14.2% of glufosinate-ammonium, 2.8% of oxyfluorfen, 150# 16% of solvent oil, 28% of the microemulsion additive obtained in example 1 and the balance of water. The preparation method was the same as in application example 1.
Application example 21
The raw materials used are: 17.5 percent of glufosinate-ammonium, 2.5 percent of haloxyfop-R-methyl, 150#2 percent of solvent oil, 20 percent of microemulsion auxiliary agent obtained in example 1 and the balance of water. The preparation method was the same as in application example 1.
2.2 analysis of test results
The stability test was performed on the herbicides prepared in application examples 15 to 21. The test method comprises the following steps: the samples prepared in the application examples are divided into 5 equal parts, and are respectively placed in different temperature environments for 15 days to carry out stability test, and the appearance state of the samples is observed. Specific test results are shown in table 2.
TABLE 2 stability of the microemulsion systems obtained after different microemulsion adjuvant formulations
Sample (I) Appearance of the product -5±2℃ 5±2℃ 10±2℃ 40±2℃ 60±2℃
Application example 15 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
Application example 16 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
Application example 17 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
Application example 18 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
Application example 19 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
Application example 20 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
Application example 21 Clear and transparent Transparent and stable Transparent and stable Transparent and stable Transparent and stable Transparent and stable
The "appearance" in table 2 means the appearance state immediately after the agricultural chemical is prepared
From the test results of the application example 1 in the table 1 and the test results of the application example 15 in the table 2, it can be seen that, when the microemulsion auxiliary agent provided by the invention is used in a high-electrolyte pesticide preparation, the dosage of the microemulsion auxiliary agent can be adjusted in time according to the raw materials used in the preparation and the change conditions of the dosage of each raw material, and the high-electrolyte pesticide obtained by the preparation still has high-temperature stability and low-temperature stability.
In addition, as can be seen from the test results of the application examples 15 to 17 in the table 2 above, after the dosage of each component in the microemulsion auxiliary is adjusted, the stability of the high electrolyte pesticide can still be improved by the microemulsion auxiliary obtained after the dosage is adjusted when the high electrolyte pesticide is prepared, so that the high electrolyte pesticide prepared by the preparation still has high-temperature stability and low-temperature stability.
Furthermore, as can be seen from the test results of the application examples 15, 18 to 21 in the above table 2, for different formulations of high electrolyte pesticides, when the components and the ratio of the high electrolyte pesticide are changed, the amount of the microemulsion adjuvant is also adjusted, so that the stability of the high electrolyte pesticide can be improved. That is, the microemulsion auxiliary agent provided by the invention is suitable for high-electrolyte pesticides with different electrolysis degrees, and can ensure that the high-electrolyte pesticides have excellent stability.
The data of the application examples show that when all components and the proportion of the high-electrolyte pesticide are changed, the microemulsion auxiliary agent provided by the invention is applicable, and the high-electrolyte pesticide prepared by the preparation is a transparent and clear system and has excellent low-temperature stability and high-temperature stability. Therefore, the microemulsion auxiliary agent provided by the invention can improve the stability of the system, is also suitable for different types of high electrolyte pesticide preparations, has higher universality and reduces the development difficulty of the high electrolyte pesticide.
The microemulsion adjuvant for high-electrolyte pesticides provided by the invention is described in detail above, and the principle and the embodiment of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (7)

1. The high-electrolyte pesticide microemulsion auxiliary is characterized by consisting of C16~22Fatty acid amide propyl dimethylamine, C6~10Fatty acid amide propyl dimethylamine, fatty alcohol polyoxyethylene ether, polystyrylphenol polyoxyethylene ether and a pH regulator;
wherein, the C16~2230 to 60 weight percent of fatty acid amide propyl dimethylamine, and C6~10The weight percentage of the fatty acid amide propyl dimethylamine is 5-15%, the weight percentage of the fatty alcohol-polyoxyethylene ether is 1-15%, and the weight percentage of the polystyrylphenol polyoxyethylene is 1-15%.
2. The microemulsion adjuvant of claim 1 wherein C is16~22The fatty acid amide propyl dimethylamine is cocamidopropyl dimethylamine.
3. The microemulsion adjuvant of claim 1 wherein C is6~10The fatty acid amide propyl dimethylamine is caprylic acid amide propyl dimethylamine.
4. The microemulsion adjuvant of claim 1 wherein the pH adjuster is an organic acid.
5. The microemulsion adjuvant of claim 4 wherein the organic acid is acetic acid.
6. The microemulsion auxiliary according to any one of claims 1 to 5, wherein the pH value of the microemulsion auxiliary is 5 to 8.
7. A preparation method of the microemulsion adjuvant according to any one of claims 1 to 6, which is characterized by comprising the following steps:
(1) c is to be16~22Fatty acid amide propyl dimethylamine, C6~10Mixing acid amide propyl dimethylamine, fatty alcohol-polyoxyethylene ether and polystyrylphenol polyoxyethylene ether, and uniformly stirring for later use;
(2) and (2) slowly adding the organic acid into the mixed system prepared in the step (1) under the stirring condition, and uniformly stirring to obtain the microemulsion auxiliary agent.
CN202111610342.1A 2021-12-27 2021-12-27 High-electrolyte pesticide microemulsion auxiliary Active CN114208827B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111610342.1A CN114208827B (en) 2021-12-27 2021-12-27 High-electrolyte pesticide microemulsion auxiliary

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111610342.1A CN114208827B (en) 2021-12-27 2021-12-27 High-electrolyte pesticide microemulsion auxiliary

Publications (2)

Publication Number Publication Date
CN114208827A true CN114208827A (en) 2022-03-22
CN114208827B CN114208827B (en) 2023-02-28

Family

ID=80706004

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111610342.1A Active CN114208827B (en) 2021-12-27 2021-12-27 High-electrolyte pesticide microemulsion auxiliary

Country Status (1)

Country Link
CN (1) CN114208827B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150208659A1 (en) * 2012-08-13 2015-07-30 Jiangsu Huifeng Agrochemical Co., Ltd. (Cn) Synergistic fungicide composition
CN106359445A (en) * 2016-08-04 2017-02-01 四川利尔作物科学有限公司 Weeding composition and application thereof
CN112385653A (en) * 2019-08-16 2021-02-23 南京科翼新材料有限公司 Emulsifier suitable for glufosinate-fluoroglycofen-ethyl microemulsion and application method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150208659A1 (en) * 2012-08-13 2015-07-30 Jiangsu Huifeng Agrochemical Co., Ltd. (Cn) Synergistic fungicide composition
CN106359445A (en) * 2016-08-04 2017-02-01 四川利尔作物科学有限公司 Weeding composition and application thereof
CN112385653A (en) * 2019-08-16 2021-02-23 南京科翼新材料有限公司 Emulsifier suitable for glufosinate-fluoroglycofen-ethyl microemulsion and application method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
钟玲等: "高电解质体系农药制剂配方的开发", 《现代农药》 *

Also Published As

Publication number Publication date
CN114208827B (en) 2023-02-28

Similar Documents

Publication Publication Date Title
RU2190329C2 (en) Herbicide compositions, method for elimination and suppression of weeds or undesired plants
CA2042348C (en) Herbicidal solutions based on n-phosphonomethylglycine
GB2267825A (en) Herbicide microemulsion concentrate
JP4663124B2 (en) Agricultural chemical compound
EP1140808A1 (en) Pesticide formulations containing alkoxylated tristyrylphenol hemi-sulfate ester neutralized alkoxylated amine surfactants
JP2010163437A (en) Pesticide formulation containing alkoxylated amine-neutralized aromatic sulfonic acid surfactant
CS236453B2 (en) Electrostatically sprayable pesticide agent
DE69922996T2 (en) PROMOTING THE BIOLOGICAL EFFECTIVENESS OF EXOGENOUS CHEMICAL SUBSTANCES IN PLANTS
CN114208827B (en) High-electrolyte pesticide microemulsion auxiliary
EP2744327A1 (en) Pesticide preparations
US10506806B2 (en) Agrochemical formulations
CA2663446C (en) Pesticide formulation with streaming birefringence
DE69816988T2 (en) METHOD AND COMPOSITIONS FOR PROMOTING THE BIOLOGICAL EFFECTIVENESS OF EXOGENIC CHEMICAL SUBSTANCES IN PLANTS
CN112106770A (en) Methylamino abamectin benzoate nano capsule and preparation method thereof
CN110583687A (en) Glyphosate and triclopyr soluble solution
WO2005041661A1 (en) Composition for use as an adjuvant, and method of preparing the composition
CN1087466A (en) Emulsion oil-in-water
CN113966740B (en) Spreading agent for litchis and preparation method thereof
CN104012570A (en) Indoxacarb-chlorpyrifos suspoemulsion and preparation method thereof
JP7376585B2 (en) Compositions and methods for reducing spray drift
CN112739211B (en) Herbicide composition
RU2523848C1 (en) Herbicidal composition (versions)
CN115397240A (en) Microemulsion type herbicide plant quarantine composition with low surfactant content and high compatibility of ultralow-volume spray liquid and obtaining method thereof
WO2011034444A1 (en) Herbicidal surfactant formulations
CN110519988A (en) The amine salt of herbicidal carboxylic acids

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: No. 17, 2nd Floor, Building A, Building 1, No. 1480 Tianfu Avenue North Section, Chengdu High tech Zone, China (Sichuan) Pilot Free Trade Zone, Chengdu, Sichuan Province, 610000

Patentee after: Chengdu kehongda Chemical Co.,Ltd.

Country or region after: China

Address before: 610041 No. 506, 507 and 508, floor 5, unit 1, building 1, No. 777, north section of Yizhou Avenue, Chengdu high tech Zone, Chengdu, Sichuan

Patentee before: Sichuan kehongda Group Co.,Ltd.

Country or region before: China