CN111345289B - Dispersible oil suspending agent containing acetamiprid and dinotefuran - Google Patents
Dispersible oil suspending agent containing acetamiprid and dinotefuran Download PDFInfo
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- CN111345289B CN111345289B CN202010206706.9A CN202010206706A CN111345289B CN 111345289 B CN111345289 B CN 111345289B CN 202010206706 A CN202010206706 A CN 202010206706A CN 111345289 B CN111345289 B CN 111345289B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- 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
- A01N25/30—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 characterised by the surfactants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N51/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds having the sequences of atoms O—N—S, X—O—S, N—N—S, O—N—N or O-halogen, regardless of the number of bonds each atom has and with no atom of these sequences forming part of a heterocyclic ring
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Abstract
The invention discloses a dispersible oil suspending agent containing acetamiprid and dinotefuran, which has the technical key points that: the raw materials comprise the following components in parts by weight: 10-40 parts of acetamiprid, 5-20 parts of dinotefuran, 1-4 parts of succinate sulfonate, 1-4 parts of sodium dodecyl benzene sulfonate, 2-5 parts of castor oil polyoxyethylene ether, 1-4 parts of alkyl polyoxyethylene ether, 4-10 parts of an emulsifier, 1-2 parts of white carbon black, 1-2 parts of a suspending agent and 35-60 parts of methyl oleate. The dispersible oil suspending agent has excellent suspension rate, so that the control effect of the dispersible oil suspending agent can be improved.
Description
Technical Field
The invention relates to the field of pesticides, in particular to a dispersible oil suspending agent containing acetamiprid and dinotefuran.
Background
As a big population country and a big agricultural country, China has great significance in agricultural development; in agricultural development, plant diseases and insect pests are a great problem to be solved urgently.
Acetamiprid belongs to nitromethylene heterocyclic compounds, is a novel pesticide, acts on a nicotine acetylcholine receptor at a synapse part of an insect nervous system, interferes with stimulation conduction of the insect nervous system, causes the obstruction of a nervous system channel, causes the accumulation of neurotransmitter acetylcholine at the synapse part, and leads to the paralysis and the eventual death of the insect. The insecticidal composition is widely applied to prevention and control of aphids, plant hoppers, thrips, partial lepidoptera pests and the like on plants such as rice, vegetables, fruit trees, tea leaves and the like.
Dinotefuran is a third-generation nicotine pesticide developed by Mitsui chemical company of Japan. The agent has excellent systemic osmosis and shows high insecticidal activity at a very low dose. The pesticide has broad pesticidal spectrum, and can be used for preventing various pests of Hemiptera, Lepidoptera, Diptera, Orthoptera, Hymenoptera, and Mediniomorpha. The pesticide is safe to mammals, birds and aquatic organisms, has no phytotoxicity to crops, and can be used for various crops such as rice, fruit trees, vegetables and the like.
In the use of the original pesticide, the original pesticide is usually prepared into different formulations, wherein the dispersible oil suspending agent is a high-dispersion and stable pesticide preparation which is prepared by taking oil as a dispersion medium and carrying out wet superfine grinding on the original pesticide and various auxiliary agents. The dispersible oil suspending agent is diluted by water and sprayed on plants to easily form a medicine film, and the surface of the plants is provided with a wax layer, so that the dispersible oil suspending agent has the advantages of strong permeation conductivity, good adhesion, rain wash resistance, better drug effect, high utilization rate of effective components and environment-friendly dosage form according to a similar compatibility principle.
However, although the dispersible oil suspending agent has the advantages, different raw medicines still have many problems in preparation, and the problems are mainly represented by low suspension rate of the medicine, so that the suspension system is unstable, phenomena such as bottom forming and creaming are easy to occur, and the control effect of the dispersible oil suspending agent is further reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the dispersible oil suspending agent containing acetamiprid and dinotefuran, which has excellent suspension rate, so that the control effect of the dispersible oil suspending agent can be improved.
In order to achieve the purpose, the invention provides the following technical scheme:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 10-40 parts of acetamiprid, 5-20 parts of dinotefuran, 1-4 parts of succinate sulfonate, 1-4 parts of sodium dodecyl benzene sulfonate, 2-5 parts of castor oil polyoxyethylene ether, 1-4 parts of alkyl polyoxyethylene ether, 4-10 parts of an emulsifier, 1-2 parts of white carbon black, 1-2 parts of a suspending agent and 35-60 parts of methyl oleate.
By adopting the technical scheme, the acetamiprid and the dinotefuran are used as raw pesticide and are main working objects for killing insects; the methyl oleate is used as a dispersion medium and provides a dispersion system for the acetamiprid and the dinotefuran;
the succinate sulfonate is used as an anionic surfactant, has hydrophilic sulfonic groups and lipophilic fat groups, and has good dispersing performance; the sodium dodecyl benzene sulfonate is also used as an anionic surfactant and has excellent dispersing effect on acetamiprid and dinotefuran in a methyl oleate system; the castor oil polyoxyethylene ether is used as a non-ionic solubilizer and can promote the dispersion of acetamiprid and dinotefuran in a methyl oleate system; the alkyl polyoxyethylene ether is used as a nonionic surfactant, has good wetting, dispersing and emulsifying effects, and can well promote dispersion of acetamiprid and dinotefuran in methyl oleate; more importantly, the succinate sulfonate, the sodium dodecyl benzene sulfonate, the castor oil polyoxyethylene ether and the alkyl polyoxyethylene ether are used together, so that a good synergistic effect can be achieved, the dispersibility of the acetamiprid and the dinotefuran in the methyl oleate can be greatly improved, and the suspension rate of the dispersible oil suspending agent can be improved;
the emulsifier is used as a functional auxiliary agent, and the self emulsifying property is utilized to improve the dispersion effect of the acetamiprid and the dinotefuran in the methyl oleate; white carbon black is used as a stabilizer, so that the stability of the dispersible oil suspending agent is improved; the suspending agent is added, so that the viscosity of a methyl oleate system is increased, the sedimentation speed of acetamiprid and dinotefuran is reduced, and the suspension rate of the dispersible oil suspending agent is further improved, so that the dispersible oil suspending agent prepared by the method has excellent suspension rate, and the control effect of the dispersible oil suspending agent can be improved.
The invention is further provided that the raw materials comprise the following components in parts by weight: 15-23 parts of acetamiprid, 8-15 parts of dinotefuran, 1-3 parts of succinate sulfonate, 2-3 parts of sodium dodecyl benzene sulfonate, 2-3 parts of castor oil polyoxyethylene ether, 2-3 parts of alkyl polyoxyethylene ether, 6-9 parts of an emulsifier, 1-2 parts of white carbon black, 1-2 parts of a suspending agent and 48-56 parts of methyl oleate.
By adopting the technical scheme, the content range of each component in the dispersible oil suspending agent system is further limited, so that each component in the dispersible oil suspending agent system can achieve a better proportion, the suspension rate of the high-dispersibility oil suspending agent is further increased, and the control effect of the suspension rate of the dispersible oil is improved.
The invention is further provided that the raw materials comprise the following components in parts by weight: 20 parts of acetamiprid, 10 parts of dinotefuran, 2 parts of succinate sulfonate, 2 parts of sodium dodecyl benzene sulfonate, 2 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 8 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent and 52 parts of methyl oleate.
By adopting the technical scheme, the content of each component in the dispersible oil suspending agent system is further determined, so that each component in the dispersible oil suspending agent system reaches the optimal proportion, the suspension rate of the high-dispersibility oil suspending agent is further increased, and the control effect of the suspension rate of the dispersible oil is greatly improved.
The invention is further set that the emulsifier is one of linear alkyl polyoxyethylene ether, fatty alcohol polyoxyethylene ether and sorbitan fatty acid ester.
By adopting the technical scheme, the linear alkyl polyoxyethylene ether is used as a nonionic surfactant and has excellent emulsification and dispersion effects, and the linear alkyl polyoxyethylene ether has lower critical micelle concentration due to direct alkyl groups in the linear alkyl polyoxyethylene ether, so that the linear alkyl polyoxyethylene ether can quickly reach the minimum surface tension, and the emulsification effect is improved; the fatty alcohol-polyoxyethylene ether is also used as a nonionic surfactant, has good compatibility with other surfactants, and further improves the emulsifying effect of the emulsifier on the dispersible oil suspending agent system; the sorbitan fatty acid ester has the performance and the emulsification effect of being mixed with various surfactants, and can also improve the emulsification effect of the dispersible oil suspending agent.
The invention is further configured that the suspending agent is one of organic bentonite, xanthan gum and arabic gum.
By adopting the technical scheme, the organic bentonite is the hydrous clay mineral mainly containing montmorillonite, has good cohesiveness, suspensibility and adsorbability, and can improve the viscosity of the dispersible oil suspending agent system, thereby improving the suspension rate of the dispersible oil suspending agent system; the xanthan gum and the Arabic gum are also used as a material with excellent tackifying performance, the viscosity of the dispersible oil suspending agent system can be well improved after the xanthan gum and the Arabic gum are dissolved in methyl oleate, and the xanthan gum and the Arabic gum are safe and harmless.
The invention is further provided with 20-60 parts of soybean lecithin and 1-5 parts of natural ginger oil.
By adopting the technical scheme, the soybean lecithin is glycerol glyceride containing phosphate groups, and has both lipophilic groups and hydrophilic groups, and for hydrophilic substances such as acetamiprid and dinotefuran, the soybean lecithin can form a coating on the acetamiprid and dinotefuran, and the soybean lecithin is outward in lipophilic groups, so that the dispersion of the acetamiprid and dinotefuran in methyl oleate can be further improved, and meanwhile, the soybean lecithin is taken as a component of a cell membrane and can well adsorb the surface of a plant, so that the control effect of the dispersible oil suspending agent can be improved; the natural ginger oil is used as an antioxidant of the soybean lecithin, and effectively prevents the soybean lecithin from being oxidized in the dispersible oil suspending agent.
The invention is further provided that the raw materials comprise the following components in parts by weight: 20 parts of acetamiprid, 10 parts of dinotefuran, 2 parts of succinate sulfonate, 1 part of sodium dodecyl benzene sulfonate, 3 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 7 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent, 55 parts of methyl oleate, 32 parts of soybean lecithin and 3 parts of natural ginger oil.
By adopting the technical scheme, the content of all components in the dispersible oil suspending agent system is further determined, so that the components in the dispersible oil suspending agent system reach the optimal proportion, the suspension rate of the high-dispersibility oil suspending agent is further increased, and the control effect of the suspension rate of the dispersible oil is improved.
The invention further provides a preparation method of the acetamiprid and dinotefuran dispersible oil suspending agent, which comprises the following steps:
adding succinate sulfonate, sodium dodecyl benzene sulfonate, castor oil polyoxyethylene ether, alkyl polyoxyethylene ether, an emulsifier, white carbon black, a suspending agent and one third of total amount of methyl oleate into a mixer, and mixing at the rotating speed of 500 revolutions per minute for 30 +/-3 min to obtain a first premix;
putting acetamiprid, dinotefuran, soybean lecithin, natural ginger oil and two-thirds of total amount of methyl oleate into a mixer, and mixing at the rotating speed of 600 revolutions per minute for 20 +/-2 min to obtain a second premix;
and mixing the first premix and the second premix, putting the mixture into a mixer, shearing and mixing the mixture for 40 +/-5 min at the rotating speed of 1200 revolutions per minute, and finally putting the mixture into a horizontal chamber sander for wet grinding to obtain the dispersible oil suspending agent.
By adopting the technical scheme, the acetamiprid, the dinotefuran, the soybean lecithin, the natural ginger oil and the methyl oleate are independently mixed, so that the coating effect of the soybean lecithin on the acetamiprid and the dinotefuran can be improved, and the control effect of the dispersible oil suspending agent can be further improved.
In conclusion, the invention has the following beneficial effects:
1. the synergistic effect of succinate sulfonate, sodium dodecyl benzene sulfonate, castor oil polyoxyethylene ether and alkyl polyoxyethylene ether is utilized, the dispersibility of acetamiprid and dinotefuran in methyl oleate is greatly improved, and the suspension rate of the dispersible oil suspending agent is improved;
2. the soybean lecithin is added to the oil suspension, so that the soybean lecithin is coated by the acetamiprid and the dinotefuran, and the lipophilic group of the soybean lecithin faces outwards, so that the dispersion of the acetamiprid and the dinotefuran in methyl oleate can be further improved, and meanwhile, the soybean lecithin is used as a component of a cell membrane and can be well adsorbed on the surface of a plant, so that the control effect of the dispersible oil suspension can be improved.
Detailed Description
The present invention will be described in further detail with reference to examples.
The first embodiment is as follows:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 10 parts of acetamiprid, 5 parts of dinotefuran, 1 part of succinate sulfonate, 1 part of sodium dodecyl benzene sulfonate, 2 parts of castor oil polyoxyethylene ether, 1 part of alkyl polyoxyethylene ether, 4 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent and 35 parts of methyl oleate.
Wherein:
the emulsifier is fatty alcohol polyoxyethylene ether.
The suspending agent is xanthan gum.
Example two:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: the pesticide composition comprises, by weight, 15 parts of acetamiprid, 8 parts of dinotefuran, 1 part of succinate sulfonate, 2 parts of sodium dodecyl benzene sulfonate, 2 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 6 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent and 48 parts of methyl oleate.
Wherein:
the emulsifier is linear chain alkyl polyoxyethylene ether.
The suspending agent is acacia.
Example three:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 20 parts of acetamiprid, 10 parts of dinotefuran, 2 parts of succinate sulfonate, 2 parts of sodium dodecyl benzene sulfonate, 2 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 8 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent and 52 parts of methyl oleate.
Wherein:
the emulsifier is linear chain alkyl polyoxyethylene ether.
The suspending agent is organic bentonite.
Example four:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 23 parts of acetamiprid, 15 parts of dinotefuran, 3 parts of succinate sulfonate, 3 parts of sodium dodecyl benzene sulfonate, 3 parts of castor oil polyoxyethylene ether, 3 parts of alkyl polyoxyethylene ether, 9 parts of an emulsifier, 2 parts of white carbon black, 2 parts of a suspending agent and 56 parts of methyl oleate.
Wherein:
the emulsifier is sorbitan fatty acid ester.
The suspending agent is organic bentonite.
Example five:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 40 parts of acetamiprid, 20 parts of dinotefuran, 4 parts of succinate sulfonate, 4 parts of sodium dodecyl benzene sulfonate, 5 parts of castor oil polyoxyethylene ether, 4 parts of alkyl polyoxyethylene ether, 10 parts of an emulsifier, 2 parts of white carbon black, 2 parts of a suspending agent and 60 parts of methyl oleate.
Wherein:
the emulsifier is fatty alcohol polyoxyethylene ether.
The suspending agent is acacia.
Example six:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 10 parts of acetamiprid, 5 parts of dinotefuran, 1 part of succinate sulfonate, 1 part of sodium dodecyl benzene sulfonate, 2 parts of castor oil polyoxyethylene ether, 1 part of alkyl polyoxyethylene ether, 4 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent, 35 parts of methyl oleate, 20 parts of soybean lecithin and 1 part of natural ginger oil.
Wherein:
the emulsifier is linear chain alkyl polyoxyethylene ether.
The suspending agent is organic bentonite.
Example seven:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 20 parts of acetamiprid, 10 parts of dinotefuran, 2 parts of succinate sulfonate, 1 part of sodium dodecyl benzene sulfonate, 3 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 7 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent, 55 parts of methyl oleate, 32 parts of soybean lecithin and 3 parts of natural ginger oil.
Wherein:
the emulsifier is linear chain alkyl polyoxyethylene ether.
The suspending agent is organic bentonite.
Example eight:
the dispersible oil suspending agent containing acetamiprid and dinotefuran comprises the following raw materials in parts by weight: 40 parts of acetamiprid, 20 parts of dinotefuran, 4 parts of succinate sulfonate, 4 parts of sodium dodecyl benzene sulfonate, 5 parts of castor oil polyoxyethylene ether, 4 parts of alkyl polyoxyethylene ether, 10 parts of an emulsifier, 2 parts of white carbon black, 2 parts of a suspending agent, 60 parts of methyl oleate, 60 parts of soybean lecithin and 5 parts of natural ginger oil.
Wherein:
the emulsifier is sorbitan fatty acid ester.
The suspending agent is organic bentonite.
Example nine:
the preparation method of the acetamiprid and dinotefuran dispersible oil suspending agent comprises the following steps:
adding succinate sulfonate, sodium dodecyl benzene sulfonate, castor oil polyoxyethylene ether, alkyl polyoxyethylene ether, an emulsifier, white carbon black, a suspending agent and one third of total amount of methyl oleate into a mixer, and mixing for 30min at the rotating speed of 500 revolutions per minute to obtain a first premix;
putting acetamiprid, dinotefuran, soybean lecithin, natural ginger oil and two-thirds of total amount of methyl oleate into a mixer, and mixing at the rotating speed of 600 revolutions per minute for 20min to obtain a second premix;
and mixing the first premix and the second premix, putting the mixture into a mixer, shearing and mixing the mixture for 45min at the rotating speed of 1200 rpm, and finally putting the mixture into a horizontal chamber grinding machine for wet grinding to obtain the dispersible oil suspending agent.
Example ten:
the preparation method of the acetamiprid and dinotefuran dispersible oil suspending agent comprises the following steps:
and putting all the raw materials into a mixer, shearing and mixing for 45min at the rotating speed of 1200 rpm, and finally putting the mixture into a horizontal chamber sander for wet grinding to obtain the dispersible oil suspending agent.
Comparative example one:
in contrast to example one, no succinate sulfonate was added and the preparation was as described in example nine.
Comparative example two:
compared with the first embodiment, the preparation method does not add sodium dodecyl benzene sulfonate, and refers to the ninth embodiment.
Comparative example three:
compared with the first example, the castor oil polyoxyethylene ether is not added, and the preparation method refers to the ninth example.
Comparative example four:
compared with the first example, no alkyl polyoxyethylene ether is added, and the preparation method refers to the ninth example.
Comparative example five:
in contrast to example one, the succinate sulfonate was replaced by the diffuser NNO and the preparation was made according to example nine.
Comparative example six:
compared with the first embodiment, sodium dodecyl benzene sulfonate is replaced by a diffusant NNO, and the preparation method refers to the ninth embodiment.
Comparative example seven:
compared with the first embodiment, the castor oil polyoxyethylene ether is replaced by a diffusant NNO, and the preparation method refers to the ninth embodiment.
Comparative example eight:
in contrast to example one, the alkyl polyoxyethylene ether was replaced with the diffuser NNO and the preparation was carried out as in example nine.
Comparative example nine:
in contrast to example one, the sulfosuccinate was replaced with alkylphenol ethoxylate phosphate (model APE-10P, LvSen chemical, Linyi), and the preparation was carried out as described in example nine.
Comparative example ten:
in contrast to example one, sodium dodecylbenzenesulfonate was replaced with alkylphenol polyoxyethylene ether phosphate (model: APE-10P, Lvkusen chemical, Linyi city), and the preparation method was as in example nine.
Comparative example eleven:
compared with the first example, the castor oil polyoxyethylene ether is replaced by alkylphenol polyoxyethylene ether phosphate (model: APE-10P, LvSen chemical industry, Linyi city), and the preparation method refers to the ninth example.
Comparative example twelve:
compared with the first example, the alkyl polyoxyethylene ether is replaced by alkylphenol polyoxyethylene ether phosphate (model: APE-10P, LvSen chemical industry, Linyi city), and the preparation method refers to the ninth example.
Comparative example thirteen:
compared with the sixth example, the preparation method refers to the ninth example without adding natural ginger oil.
Comparative example fourteen:
example one comparison was made by replacing acetamiprid with an equal amount of dinotefuran and the preparation was made according to example nine.
Comparative example fifteen:
example one comparison was made by replacing dinotefuran with an equal amount of acetamiprid, prepared according to example nine.
And (3) performance detection:
1. the main technical indexes of the dispersible oil suspending agent are measured according to the regulations in national standards or industrial standards of related pesticides in China (GB/T14825-2006 pesticide suspension rate measuring method, GB/T19136-2003 pesticide heat storage stability measuring method, GB/T19137-2003 pesticide low-temperature stability measuring method and HG/T2467.5-2003 pesticide suspending agent product standard writing specification).
2. Experiments are carried out at the early stage of local apple aphid occurrence, and 26 apple orchards are selected for experiments and used as medicament treatment areas.
(1) The application method comprises the following steps: spraying and applying the pesticide at the early stage of apple aphid emergence, diluting the pesticide according to 600Kg of water per hectare during spraying, applying the pesticide at the highest temperature of 25 ℃ and the lowest temperature of 15 ℃ in sunny days and 9-11 am on the day of application. Meanwhile, an apple orchard is selected as a control area, and clear water is sprayed on the control area.
(2) The usage amount of the medicine is applied according to the dosage of the effective components of 10 g/hectare.
(3) The prevention effect calculation method comprises the following steps:
the control effect (%) is [1- (CK0 XPT 1)/(CK 1 XPT 0) ] x 100%
In the formula:
PT 0-number of aphids before drug treatment in the drug treatment area;
PT 1-number of aphids after drug administration in the drug treatment area;
CK 0-number of aphids before drug administration in placebo zone;
CK 1-number of aphids after drug administration in placebo zone.
TABLE 1
TABLE 2
TABLE 3
TABLE 4
According to the detection results, the synergistic effect of the succinate sulfonate, the sodium dodecyl benzene sulfonate, the castor oil polyoxyethylene ether and the alkyl polyoxyethylene ether greatly improves the dispersibility of the acetamiprid and the dinotefuran in the methyl oleate, so that the suspension rate of the dispersible oil suspending agent is improved; meanwhile, the soybean lecithin is added to coat the acetamiprid and dinotefuran, so that the dispersion of the acetamiprid and dinotefuran in methyl oleate can be further improved, and the soybean lecithin serving as a component of a cell membrane can well adsorb the surface of a plant, so that the control effect of the dispersible oil suspending agent can be improved.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The dispersible oil suspending agent containing acetamiprid and dinotefuran is characterized by comprising the following components in parts by weight: 10-40 parts of acetamiprid, 5-20 parts of dinotefuran, 1-4 parts of succinate sulfonate, 1-4 parts of sodium dodecyl benzene sulfonate, 2-5 parts of castor oil polyoxyethylene ether, 1-4 parts of alkyl polyoxyethylene ether, 4-10 parts of an emulsifier, 1-2 parts of white carbon black, 1-2 parts of a suspending agent, 35-60 parts of methyl oleate, 20-60 parts of soybean lecithin and 1-5 parts of natural ginger oil.
2. The dispersible oil suspending agent containing acetamiprid and dinotefuran according to claim 1, which is characterized by comprising the following components in parts by weight: 15-23 parts of acetamiprid, 8-15 parts of dinotefuran, 1-3 parts of succinate sulfonate, 2-3 parts of sodium dodecyl benzene sulfonate, 2-3 parts of castor oil polyoxyethylene ether, 2-3 parts of alkyl polyoxyethylene ether, 6-9 parts of an emulsifier, 1-2 parts of white carbon black, 1-2 parts of a suspending agent and 48-56 parts of methyl oleate.
3. The dispersible oil suspending agent containing acetamiprid and dinotefuran according to claim 2, which is characterized by comprising the following components in parts by weight: 20 parts of acetamiprid, 10 parts of dinotefuran, 2 parts of succinate sulfonate, 2 parts of sodium dodecyl benzene sulfonate, 2 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 8 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent and 52 parts of methyl oleate.
4. The dispersible oil suspending agent containing acetamiprid and dinotefuran according to claim 1, wherein: the emulsifier is one of linear alkyl polyoxyethylene ether, fatty alcohol polyoxyethylene ether and sorbitan fatty acid ester.
5. The dispersible oil suspending agent containing acetamiprid and dinotefuran according to claim 1, wherein: the suspending agent is one of organic bentonite, xanthan gum and Arabic gum.
6. The dispersible oil suspending agent containing acetamiprid and dinotefuran according to claim 1, which is characterized by comprising the following components in parts by weight: 20 parts of acetamiprid, 10 parts of dinotefuran, 2 parts of succinate sulfonate, 1 part of sodium dodecyl benzene sulfonate, 3 parts of castor oil polyoxyethylene ether, 2 parts of alkyl polyoxyethylene ether, 7 parts of an emulsifier, 1 part of white carbon black, 1 part of a suspending agent, 55 parts of methyl oleate, 32 parts of soybean lecithin and 3 parts of natural ginger oil.
7. The dispersible oil suspending agent containing acetamiprid and dinotefuran according to claim 6, wherein: the preparation method of the acetamiprid and dinotefuran dispersible oil suspending agent comprises the following steps:
adding succinate sulfonate, sodium dodecyl benzene sulfonate, castor oil polyoxyethylene ether, alkyl polyoxyethylene ether, an emulsifier, white carbon black, a suspending agent and one third of total amount of methyl oleate into a mixer, and mixing at the rotating speed of 500 revolutions per minute for 30 +/-3 min to obtain a first premix;
putting acetamiprid, dinotefuran, soybean lecithin, natural ginger oil and two-thirds of total amount of methyl oleate into a mixer, and mixing at the rotating speed of 600 revolutions per minute for 20 +/-2 min to obtain a second premix;
and mixing the first premix and the second premix, putting the mixture into a mixer, shearing and mixing the mixture for 40 +/-5 min at the rotating speed of 1200 revolutions per minute, and finally putting the mixture into a horizontal chamber sander for wet grinding to obtain the dispersible oil suspending agent.
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