CN110463696A - It is a kind of to be suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used - Google Patents

It is a kind of to be suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used Download PDF

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Publication number
CN110463696A
CN110463696A CN201810438720.4A CN201810438720A CN110463696A CN 110463696 A CN110463696 A CN 110463696A CN 201810438720 A CN201810438720 A CN 201810438720A CN 110463696 A CN110463696 A CN 110463696A
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suspending agent
dry suspending
pesticide
pesticide dry
ethoxylate
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詹姆斯·T·布里斯托
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Jiangsu Rotam Chemical Co Ltd
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Jiangsu Rotam Chemical Co Ltd
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    • 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
    • A01N25/06Aerosols
    • 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
    • A01N25/12Powders or granules
    • A01N25/14Powders or granules wettable
    • 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
    • A01N41/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • A01N41/10Sulfones; Sulfoxides
    • 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
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • 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
    • A01N47/00Biocides, 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
    • A01N47/08Biocides, 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 one or more single bonds to nitrogen atoms
    • A01N47/10Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/24Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
    • 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
    • A01N47/00Biocides, 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
    • A01N47/08Biocides, 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 one or more single bonds to nitrogen atoms
    • A01N47/28Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/34Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
    • 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
    • A01N51/00Biocides, 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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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

It is suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used the present invention relates to a kind of.The pesticide dry suspending agent contains the component of following mass percent: pesticide activity component 10-80%, wetting agent 1-5%, dispersing agent 2-8%, fatty acid ester ethoxylate 1-10%, defoaming agent 0-1%, carrier 0-80%.Pesticide dry suspending agent average grain diameter provided by the invention is small, and dispersion stabilization is good, and suspensibility is high.Especially fatty acid ester ethoxylate used in formula can substantially reduce the volatility and drift performance of pesticide spray drop, be highly suitable for the spraying middle use of unmanned plane, improve spraying accuracy and control efficiency.In addition the preparation process of pesticide dry suspending agent of the present invention is easily-controllable, effectively increases production efficiency, reduces production cost.

Description

It is a kind of to be suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used
Technical field
The present invention relates to field of pesticide preparation and plant protection field more particularly to a kind of pesticide dry suspending agent and preparation method thereof With the purposes in unmanned plane is spraying.
Background technique
Currently, pesticide has become an important means of prevention and treatment crop diseases and pest crop smothering.The agriculture of science safe handling in recent years The level of medicine is constantly promoted, and is especially precisely applied from improvement spraying equipment, organizational form, using scientific promote of technology etc. Medicine improves pesticide utilization rate, realizes efficient pest controlling target.Traditional pesticide plant protection operation uses artificial large capacity spraying mode, consumption When, laborious, water consumption is big, operating efficiency and pesticide utilization rate are low.This mode is gradually applied by small-sized plant protection unmanned plane by spraying Replaced medicine.
However use small-sized plant protection unmanned plane spraying since loading capacity limits, must be requested that preparation is suitble to low water dilution times Number, pharmaceutical formulation used is based on the liquid preparations such as missible oil, aqueous emulsion, microemulsion, suspending agent, aqua.However due to some agricultures The reasons such as the physicochemical property of medicine active matter are not suitable for preparing liquid preparation, thus developing solid pharmaceutical preparation flying anti-application is one Extremely urgent demand.
It is ultra-low volume pesticide application technology in addition, being sprayed insecticide using plant protection drone, need to be generally diluted in 20 times hereinafter, outstanding It is 10 times or less.In order to ensure drug effect, spray droplet is anti-due to that must be had by environment temperature, windage during sprinkling Drift, anti-volatile energy.Although current dry suspending agent on the market has had, particle diameter distribution is small, dispersion stabilization is good, suspensibility The features such as high, is suitble to low water extension rate to use, however does not generally have anti-drift, anti-volatile energy, limits it in plant protection Application during unmanned plane is spraying.
A kind of pesticide dry suspending agent is disclosed in CN106172385A, the component containing following mass percent: pesticide Active constituent 5-70%, wetting agent 1-5%, dispersing agent 1-40%, disintegrating agent 0-20%, fly anti-special assistant 2.5-10%, disappear Infusion 0-0.5%, filler 0-30%, wherein flying anti-special assistant in glycerol acetonide acetone, glycerol formal and polyvinyl alcohol Any one or more mixtures.The pesticide dry suspending agent average grain diameter is small, and dispersion stabilization is good, and suspensibility is high, mist It drips size more evenly, there is certain anti-volatilization, anti-drift performance;However, the key of the pesticide dry suspending agent is resistant to wave The space of hair and the promotion still in need of anti-drift effect.
Summary of the invention
It is suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used the purpose of the present invention is to provide a kind of, With overcome existing dry suspending agent do not have anti-drift and anti-volatile energy or anti-drift and anti-volatile can not be high and cause to be used for Fly the poor technical problem of anti-effect.
In order to achieve the above-mentioned object of the invention, present invention employs following technical solutions:
In a first aspect, being suitble to fly the anti-pesticide dry suspending agent used the present invention provides a kind of, contain following quality hundred Divide the component of ratio:
It is living with pesticide due to being added to fatty acid ester ethoxylate component in pesticide dry suspending agent provided by the invention Property ingredient and each auxiliary agent between generate synergistic effect so that the size controlling for spraying drop can be made 195 when being applied to spraying In~210 μ ms, have the characteristics that particle diameter distribution is narrow, hence it is evident that reduce the volume fraction of 141 μm or less spray droplets, thus So that effectively reducing the ability of droplet drift in spray process;Meanwhile when being sprayed after dilution, volume volatility can 38% is down to hereinafter, also having superior anti-volatilization effect.
The present invention plays the work for flying anti-auxiliary agent by the way that fatty acid ester ethoxylate to be added in pesticide dry suspending agent With, and the fatty acid ester ethoxylate disclosed in previous literature is primarily as the emulsifier of pesticide and applied to hard Surface clean, liquid wash or personal cleansing articles in play the role of surfactant, the two is different.For art technology For personnel, be purely by way of farm chemical emulgent or applied to hard surface cleaning, liquid wash or personal cleansing articles in play surface living The auxiliary agent of property agent, can not be simply diverted to fly in anti-auxiliary agent, at present the also not no document report of this respect.
And the present invention is by using fatty acid ester ethoxylate as anti-auxiliary agent is flown, by this preparation of pesticide dry suspending agent Form enables to finally prepare pesticide spray drop is greatly reduced in obtained pesticide dry suspending agent volatility and drift Can, and the drug effect for improving pesticide activity component plays, that is, it is between fatty acid ester ethoxylate and pesticide dry suspending agent preparation Closely related.Pesticide dry suspending agent provided by the invention also has average grain diameter small, and dispersion stabilization is good, the spies such as suspensibility height Point is highly suitable for the spraying middle use of unmanned plane, spraying accuracy with higher and excellent control efficiency.
Second aspect, the present invention also provides a kind of preparation methods of pesticide dry suspending agent, include the following steps:
(1) each component raw material is weighed respectively by component contained by pesticide dry suspending agent described in first aspect present invention;
(2) the weighed component raw material and water are mixed by weight the ratio of 3:7-1:1, is stirred evenly, and Sanded treatment is carried out, the suspension of 2 μm of grain diameter size D50 < is obtained;
(3) suspension is 120-150 DEG C, exports hot-air temperature using spray dryer in import hot air temperature Degree is spray-dried under conditions of being 60-90 DEG C, is prepared into the pesticide dry suspending agent.
The third aspect, the present invention also provides a kind of purposes of pesticide dry suspending agent described in first aspect present invention, will contain There is pesticide dry suspending agent described in first aspect present invention to use by spraying for small drone, the pesticide dry suspending agent is effective Weight extension rate is used in 1-20 times of lower progress low capacity or ultra-low volume spray.
Compared with prior art, the present invention at least has the advantages that
(1) fly to prevent dedicated help by the way that fatty acid ester ethoxylate is added and is used as in pesticide dry suspending agent provided by the invention Agent, the auxiliary agents such as cooperation wetting agent, dispersing agent, defoaming agent or carrier, generates synergistic effect, suspends so that pesticide of the invention is dry Agent has superior anti-drift, anti-volatile energy, wherein the pesticide dry suspending agent that the present invention is prepared sprays after 10 times of dilution Percent by volume of the mist size droplet diameter less than 141 μm is can be controlled within 19.2%, is sprayed after being diluted with water 100 times When volume volatility can be controlled in 38% or less;The dry suspending agent have lesser average grain diameter, higher suspensibility and Dispersion stabilization enables low power number to dilute lower particle and preferably suspends in water and keep being evenly distributed;It significantly enhances Solid pharmaceutical preparation is flying the application on anti-;
(2) preparation method of pesticide dry suspending agent is by the active constituent of certain content and type, accordingly helps in the present invention Agent is prepared into dry suspending agent after directly mixing sanded treatment with water, preparation process is simple and easy to control, using water as medium, safety Environmental protection effectively raises production efficiency, reduces production cost, alleviates granule dust pressure, improves working environment;
(3) since pesticide dry suspending agent provided by the invention is when being applied to spraying, the size controlling for spraying drop can be made In 195~210 μ ms, have the characteristics that particle diameter distribution is narrow, hence it is evident that reduce the volume point of 141 μm or less spray droplets Number, so that effectively reducing the ability of droplet drift in spray process;Meanwhile when being sprayed after dilution, volume Volatility can be down to 38% hereinafter, also having superior anti-volatilization effect, in addition also have dispersion stabilization good, suspensibility height etc. Feature, therefore, pesticide dry suspending agent of the invention can be effectively used for low capacity of the weight extension rate in 1-20 times and/ Or ultra-low volume spray, it is especially suitable for small drone and uses by spraying, and pesticide activity component can be greatly improved to crop disease Harmful preventive effect.
Specific embodiment
Of the invention for ease of understanding, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation Example is only to aid in the understanding present invention, should not be regarded as a specific limitation of the invention.
The embodiment of the invention provides a kind of pesticide dry suspending agents with excellent anti-drift and anti-boiling characteristics.Each In embodiment, the pesticide dry suspending agent contains the component of following mass percent:
In this way, pesticide dry suspending agent of the embodiment of the present invention passes through contained fatty acid ester ethoxylate and wetting agent, dispersion Synergistic effect between other auxiliary agents such as agent, so that pesticide dry suspending agent of the present invention has excellent moisturizing, anti-volatilization, anti-drift Etc. characteristics, after being carried out prevention and treatment, can efficiently act against on prevention and treatment target, significantly enhance and flying the application on anti-.
In pesticide dry suspending agent of the present invention, the mass percentage content of pesticide activity component is 10-80%, such as can Be 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75% or 80%.
Wherein, pesticide activity component contained by pesticide dry suspending agent of the present invention as dry suspending agent activity at Point, the preventive and therapeutic effect of pesticide is played, can flexibly be selected according to types such as the specific diseases of plant protection.The pesticide activity Ingredient can be selected from emamectin benzoate, imidacloprid, Nitenpyram, cyhalothrin, Tebuconazole, pyraclostrobin, thiophanate-methyl, more bacterium Spirit, Isoprothiolane, difenoconazole, tricyclazole, zineb, nicosulfuron, penoxsuam, florasulam, oxadiazon or nitre In sulphur humulone any one or at least two mixture, wherein typical but non-limiting mixture are as follows: emamectin benzoate and pyrrole Worm quinoline;Nitenpyram and cyhalothrin;Thiophanate-methyl and carbendazim;Carbendazim, Isoprothiolane and difenoconazole.
By the selection to the pesticide activity component, the pesticide activity component of the selection is solid at normal temperature, not only Pesticide dry suspending agent of the embodiment of the present invention can be effectively improved to the control efficiency of plant protection, additionally it is possible to it is contained of the present invention The auxiliary agents such as fatty acid ester ethoxylate between play synergistic function, improve pesticide dry suspending agent of the embodiment of the present invention The characteristics such as anti-drift, anti-volatile, to improve the effect of its control efficiency and implementation on unmanned plane is spraying.
In pesticide dry suspending agent of the present invention, the mass percentage content of fatty acid ester ethoxylate is 1-10%, Such as it can be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% or 10%.
Heretofore described fatty acid ester ethoxylate has following general formula:
R1-CO(OCH2CH2)nO-R2And/or R1-CO(OCH2CH2)nO-R2-O(OCH2CH2)nOC-R1
Wherein R1For with 10-20 carbon atom, (such as carbon atom can be 10,11,12,13,14,15 A, 16,17,18,19 or 20) alkyl and/or alkenyl, R2For with 1-5 carbon atom, (such as carbon atom can To be 1,2,3,4 or 5) alkyl, n 1-15, for example, can be 1,2,3,4,5,6,7,8,9,10,11,12, 13,14 or 15.
Specifically, the fatty acid ester ethoxylate can be selected from methyl stearate ethoxylate, coconut oil fourth two Ester ethoxylate, butyl palmitate ethoxylate, methyl oleate ethoxylate, castor oil second diester ethoxylate or In linoleic acid propyl ester ethoxylate any one or at least two mixture.
Pesticide dry suspending agent of the present invention is used as by using fatty acid ester ethoxylate flies anti-auxiliary agent, with wetting There is synergistic effect, so that pesticide dry suspending agent of the present invention has excellent moisturizing, resists and wave between other auxiliary agents such as agent, dispersing agent The characteristics such as hair, anti-drift can have the characteristics that particle diameter distribution is narrow, be more suitable for by the size controlling for spraying drop at 200 μm or so Small drone uses by spraying.
In pesticide dry suspending agent of the present invention, the mass percentage content of wetting agent is 1-5%, such as can be 1%, 2%, 3%, 4% or 5%.
Wetting agent contained by pesticide dry suspending agent of the present invention selects neopelex, fatty acid polyoxy second In alkene ether, Sorbitan acid aliphatic ester or the different monooctyl ester of dioctyl succinate acid any one or at least two mixture.
In pesticide dry suspending agent of the present invention, the mass percentage content of dispersing agent is 2-8%, such as can be 2%, 3%, 4%, 5%, 6%, 7% or 8%.
Dispersing agent contained by pesticide dry suspending agent of the present invention selects alkylnaphthalene sulfonate, lignosulfonates, third Olefin(e) acid copolymer, Pluronic PE 6800, in polystyrylphenol sulfate any one or at least two mixing Object.
In pesticide dry suspending agent of the present invention, the mass percentage content of defoaming agent is 0-1%, such as be can be 0.1%, 0.2%, 0.3%, 0.5%, 0.6%, 0.8% or 1%.
Defoaming agent contained by pesticide dry suspending agent of the present invention is selected from poly- alkyl silicon ethylene oxide, mineral oil or alcohol In class any one or at least two mixture.
In pesticide dry suspending agent of the present invention, the mass percentage content of carrier is 0-80%, such as can be 1%, 3%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75% Or 80%.
Carrier contained by pesticide dry suspending agent of the present invention is white carbon black, calcined kaolin, aluminium-magnesium silicate, swelling In soil, cornstarch, lactose, sucrose or potassium sulfate any one or at least two mixture.
Therefore, pesticide dry suspending agent of the invention passes through the control to pesticide activity component and each auxiliary agent type and its content System, so that pesticide dry suspending agent of the present invention is not only under lower extension rate (such as 1,2,3,5,10,12,15,18 or 20 times) Dispersion stabilization is good, suspensibility is high, and has many advantages, such as that anti-volatilization, anti-drift, mist droplet particle size are uniform.
Correspondingly, the embodiment of the invention also provides a kind of preparation methods of pesticide dry suspending agent above.The present invention is implemented The preparation method of example pesticide dry suspension includes the following steps:
Step 1: weighing each component raw material respectively by component contained by pesticide dry suspending agent of the embodiment of the present invention;
Step 2: the weighed each component raw material of step 1 and water being mixed by weight the ratio of 3:7-1:1, stirred Uniformly, and sanded treatment is carried out, obtains the suspension of 2 μm of grain diameter size D50 <;
Step 3: suspension described in step 2 is 120-150 DEG C, gone out using spray dryer in import hot air temperature Mouth hot air temperature is spray-dried under conditions of being 60-90 DEG C, is prepared into the pesticide dry suspending agent.
In step 2 weight ratio of each component raw material and water be 3:7-1:1, such as can be 3:1,4:1,5:1,6:1,7:1, 3:2 or 1:1.
Therefore, embodiments of the present invention pesticide dry suspending agent preparation method by the active constituent of certain content and type and Corresponding additive is prepared into pesticide dry suspending agent after directly carrying out mixed processing with water, imparts the small average grain of pesticide dry suspending agent Diameter, its dispersion stabilization is good under lower extension rate, and suspensibility is high, and has anti-volatilization, anti-drift, mist droplet particle size more equal It is even, it greatly enhances and is flying the application on anti-;In addition, its preparation process is simple, the pesticide dry suspending agent of preparation has been effectively ensured The stabilization of performance, and production efficiency is effectively increased, reduce production cost.
It is by taking specific pesticide dry suspending agent and preparation method as an example below, the present invention is described in more detail.
Embodiment 1
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 140 DEG C of inlet temperature, 90 DEG C of outlet temperature.
Embodiment 2
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 120 DEG C of inlet temperature, 60 DEG C of outlet temperature.
Embodiment 3
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by 140 DEG C of outlet temperatures of inlet temperature, 80 DEG C of spray dryer.
Embodiment 4
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 130 DEG C of inlet temperature, 70 DEG C of outlet temperature.
Embodiment 5
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <.It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 130 DEG C of inlet temperature, 80 DEG C of outlet temperature.
Embodiment 6
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 130 DEG C of inlet temperature, 70 DEG C of outlet temperature.
Comparative example 1
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 140 DEG C of inlet temperature, 90 DEG C of outlet temperature.
Comparative example 2
Preparation method: above-mentioned raw materials are mixed evenly, and are crushed using airslide disintegrating mill, are added water to mediate extruding and are made Grain, is made water dispersible granules.
Comparative example 3
Preparation method: above-mentioned raw materials are added to one by one in 120g water, stir into uniform slurry object, this slurry object is led to It crosses equipped with being sanded in the sand mill that pearl is sanded, obtains the water slurry sample of 2 μm of Average Particle Diameters D50 <;It will be above-mentioned Water slurry carries out mist projection granulating by the spray dryer of 140 DEG C of inlet temperature, 80 DEG C of outlet temperature.
Comparative example 4
Preparation method: above-mentioned raw materials are mixed evenly, and are crushed using airslide disintegrating mill, are added water to mediate extruding and are made Grain, is made water dispersible granules.
Comparative example 5
Preparation method is same as Example 1.
Comparative example 6
Preparation method is same as Example 1.
Comparative example 7
Preparation method is same as Example 1.
Comparative example 8
Preparation method is same as Example 1.
Fly anti-experimental performance test
The test of medical fluid dilution stability
By the dry suspension that embodiment 1 and 3 obtains and dry suspending agent and comparative example 2 that comparative example 1,3,5,6,7 and 8 obtains The water dispersion granule obtained with 4 add respectively 1 times of water, 10 times, 20 times, obtain water slurry after 200 times of dilutions, test medical fluid is dilute Stability after releasing 1 hour.As a result as shown in table 1 below.
Table 1
Embodiment 1 and 3 is all with comparative example 1,3,5,6,7 and 8 it can be seen from the dilution stability test result of table 1 Dry suspending agent, at 1 times, 10 times, the suspension dilutions obtained after 20 times of dilutions have good stability, dilution be more than 1 hour still For homogeneous suspension liquid.And comparative example 2 and 4 is due to being traditional water dispersion granule, under 1 times of low extension rate, 10 times, 20 times The problems such as will appear sediment, thus medical fluid dilution stability is poor, this is infeasible by spraying to small drone;Thus It illustrates, preparation method of the present invention ensure that dilution has good stability, thus spraying conducive to small drone.
Medical fluid anti-drift performance test
The test of 2.1 medicine liquid spray size droplet diameter sizes
Above-described embodiment 1 and 3 and the sample of comparative example 1,3,5,6,7 and 8 be diluted with water 10 times of formation dilutions (due to Comparative example 2 and 4 is water dispersible granules, and low extension rate has sediment, is not made comparisons), select nozzle for the spray of standard flat jet Mouth XR1102 (Teejet), under constant 3 bars of pressure, by testing less than 141 μm volumes hundred below of spray droplet partial size Divide ratio to judge anti-drift performance (part of the spray droplet partial size less than 141 μm, which belongs to, plays a leading role to drift).As a result such as table 2 It is shown.
Table 2
Embodiment 1 prepared by the present invention and embodiment 3 are used it can be seen from the spraying droplet particle size data of table 2 The dilution that is formed of dry suspending agent sample substantially reduce the volumes point of 141 μm or less spray droplets by spraying under the same conditions Number, the ability of droplet drift can be effectively reduced in this in spray process;And comparative example 5,6 and 7 uses glycerol acetonide acetone, glycerol acetonide It can be reduced 141 μm of sprays below really for formaldehyde, glycerol polyethylene alcohol phase dry suspending agent more common than comparative example 1 and 3 and pure water Spray film drop, however comparing with the embodiment of the present invention still has a certain distance, and comparative example 8 is then done with common using aliphatic ester Suspending agent result is substantially similar, thus also illustrates, the present invention is dedicated as flying to prevent by using fatty acid ester ethoxylate Auxiliary agent, the auxiliary agents such as cooperation wetting agent, dispersing agent, defoaming agent or carrier, generates synergistic effect, so that pesticide of the invention is dry outstanding Floating agent has superior anti-drift performance.
The test of 2.2 medicine liquid spray droplet distributions
Above-described embodiment 1 and 3 and the sample of comparative example 1,3,5,6,7 and 8 are diluted with water 10 times of formation dilutions (due to right Ratio 2 and 4 is water dispersible granules, and low extension rate has sediment, is not made comparisons), unit area is recorded using droplet test card Small and medium size unmanned aerial vehicles spraying droplet distribution situation.
Specific experiment parameter: 2 meter per second of wind speed, 3 meters of small drone flying height, 4 meter per second of flying speed, 6 meters of spraying swath. Record point setting: laterally setting 5 cloth sampling points, projection record point 0 immediately below unmanned plane, record point -1 at 2 meters of the subpoint left side, Point -2 is recorded at 4 meters of the subpoint left side, point 1 is recorded at 2 meters of subpoint the right, record 2 at 4 meters of subpoint the right, longitudinal direction (flies Machine heading) 5 row's identical recordings points are set, droplet test card is placed on each record point respectively and carries out record droplet number.5 Group record point -2, -1,0,1,2 data are averaged (9 square centimeters of droplet number meters).As a result show as described in Table 3.
Table 3
It can be seen from the spraying droplet distribution tests data of table 3 within the scope of spraying swath, the droplet number of each record point record Amount is substantially close, illustrates that the dry suspending agent of embodiment and comparative example has preferable Spray Uniformity.And touching outside width range, remember It records at point -2 and record point 2, comparative example 1,3,5,6,7 and 8 dry suspending agents and pure water collect spraying droplet, and of the invention The dry suspending agent of embodiment 1 and 3 do not collect spraying droplet.The test of medicine liquid spray droplet distribution further illustrates of the invention Pesticide dry suspending agent is uniformly distributed using small drone spray droplet and the performance with anti-drift.
Comprehensive 2.1 medicine liquid spray size droplet diameter size test experiments and 2.2 medicine liquid spray droplet distribution test experiments are more preferable Illustrate that dry suspending agent of the invention is upper raw using the small droplet being effectively controlled lower than 141 μm by spraying in small drone At so that the drift degree of droplet is effectively controlled, with excellent anti-drift performance.
Medical fluid anti-volatile can test
Laboratory simulation spray environment and spray pattern control 25 DEG C of room temperature, humidity 20% in closed interior. Electric centrifugal atomizer is fixed at 3 meters of ground vertical height, to be projected as the center of circle immediately below spray head, 2 meters of radius Circular arc on fix 3 points as test point (test point and 3.60 meters of spray head linear distance), each test point places a mist Test card is dripped, repeats totally 3 droplet test cards every time.Before spraying, capacity of sprinkler and initial particle are measured (away from inspection at spray head 30cm Survey), spraying 5s collects droplet test card after the 2min that lands, and analyzes droplet size (μm) using deposit scan software, covers Lid density (a/cm2), deposition μ L/cm2) etc. data, it is for statistical analysis using DPS software.
The sample of embodiment 1-6 and the sample of comparative example 1-8 be diluted with water 100 times after dilution as test sample. The results are shown in Table 4.
Table 4
Dry suspending agent prepared by the present invention is under identical extension rate it can be seen from the anti-volatilization test data of 4 droplet of table Spray liquid with it is routinely dry suspend, the dilution of water dispersion granule is compared has superior anti-volatilization effect, volume is volatilized Rate can be controlled in 38% or less.
Field efficacy test
Test place: Nantong Qidong county paddy field
Test method: embodiment 1 and 1,5,6,7,8 sample of comparative example (60% dry suspending agent of thiophanate-methyl) are added respectively The clear water of 10 times of amounts is diluted, and obtains unmanned plane sprinkling dilution;During rice sheath blight disease morbidity, banded sclerotial blight hazard ratio is selected More consistent rice region divides several strips for being suitble to unmanned plane spraying, carries out nobody to each processing using above-mentioned medicament Machine spraying treatment (applying area), blank control are (check plot) without any processing.Detect the occurrence degree of banded sclerotial blight, test result Such as table 5.
Table 5
It is apparently higher than it can be seen from 5 preventive effect result of table using the preventive effect of dry suspending agent of the invention to rice sheath blight disease Using the processing of comparative example dry suspending agent, the preventive effect of 5-10% or more can be at least improved.Suitable unmanned plane i.e. of the invention is spraying The dry suspending agent used is greatly improved crops preventive effect.
It in summary it can be seen, further illustrating dry suspending agent prepared by the present invention by flying the test of anti-experimental performance has Excellent dilution stability, anti-drift, anti-boiling characteristics further illustrate dry suspending agent prepared by the present invention and are suitble to low capacity Or the spraying performance requirement of small drone of ultra-low volume.
The Applicant declares that the present invention is explained by the above embodiments detailed process equipment and process flow of the invention, But the present invention is not limited to the above detailed process equipment and process flow, that is, it is above-mentioned detailed not mean that the present invention must rely on Process equipment and process flow could be implemented.It should be clear to those skilled in the art, any improvement in the present invention, Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within of the invention Within protection scope and the open scope.

Claims (10)

1. a kind of be suitble to fly the anti-pesticide dry suspending agent used, which is characterized in that the component containing following mass percent:
2. pesticide dry suspending agent according to claim 1, which is characterized in that the fatty acid ester ethoxylate has such as Lower general formula:
R1-CO(OCH2CH2)nO-R2And/or R1-CO(OCH2CH2)nO-R2-O(OCH2CH2)nOC-R1
Wherein R1For alkyl and/or alkenyl with 10-20 carbon atom, R2For the alkyl with 1-5 carbon atom, n 1- 15;
Preferably, the fatty acid ester ethoxylate is methyl stearate ethoxylate, coconut oil fourth diester ethoxylation Object, butyl palmitate ethoxylate, methyl oleate ethoxylate, castor oil second diester ethoxylate or linoleic acid propyl ester In ethoxylate any one or at least two mixture.
3. pesticide dry suspending agent according to claim 1, which is characterized in that the pesticide activity component is emamectin benzoate, pyrrole Worm quinoline, Nitenpyram, cyhalothrin, Tebuconazole, pyraclostrobin, thiophanate-methyl, carbendazim, Isoprothiolane, difenoconazole, In tricyclazole, zineb, nicosulfuron, penoxsuam, florasulam, oxadiazon or mesotrione any one or extremely Few two kinds of mixture.
4. pesticide dry suspending agent according to claim 1, which is characterized in that the wetting agent is dodecyl benzene sulfonic acid In sodium, aliphatic acid polyethenoxy ether, Sorbitan acid aliphatic ester or the different monooctyl ester of dioctyl succinate acid any one or at least Two kinds of mixture.
5. pesticide dry suspending agent according to claim 1, which is characterized in that the dispersing agent is alkylnaphthalene sulfonate, wood In mahogany sulfonate, acrylic copolymer, Pluronic PE 6800 or polystyrylphenol sulfate any one or extremely Few two kinds of mixture.
6. pesticide dry suspending agent according to claim 1, which is characterized in that the defoaming agent is poly- alkyl silicon ethylene oxide In class, mineral oil or alcohols any one or at least two mixture.
7. pesticide dry suspending agent according to claim 1, which is characterized in that the carrier be white carbon black, calcined kaolin, In aluminium-magnesium silicate, bentonite, cornstarch, lactose, sucrose or potassium sulfate any one or at least two mixture.
8. a kind of preparation method of pesticide dry suspending agent, which is characterized in that the described method comprises the following steps:
(1) each component raw material is weighed respectively by component contained by pesticide dry suspending agent of any of claims 1-7;
(2) the weighed component raw material and water are mixed by weight the ratio of 3:7-1:1, is stirred evenly, and carry out Sanded treatment obtains the suspension of 2 μm of grain diameter size D50 <;
(3) by the suspension using spray dryer import hot air temperature is 120-150 DEG C, outlet hot air temperature is It is spray-dried under conditions of 60-90 DEG C, is prepared into the pesticide dry suspending agent.
9. pesticide dry suspending agent according to claim 1 or the pesticide dry suspending agent of method according to any one of claims 8 preparation Purposes, which is characterized in that the pesticide dry suspending agent is used for small drone and is used by spraying.
10. purposes according to claim 9, which is characterized in that the effective weight of the pesticide dry suspending agent is diluted 1- 20 times of progress low capacity or ultralow solution use by spraying.
CN201810438720.4A 2018-05-09 2018-05-09 It is a kind of to be suitble to fly the anti-pesticide dry suspending agent and its preparation method and application used Pending CN110463696A (en)

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Application publication date: 20191119