CN110150283A - A kind of Envidor suspending agent and preparation method thereof - Google Patents

A kind of Envidor suspending agent and preparation method thereof Download PDF

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Publication number
CN110150283A
CN110150283A CN201910445509.XA CN201910445509A CN110150283A CN 110150283 A CN110150283 A CN 110150283A CN 201910445509 A CN201910445509 A CN 201910445509A CN 110150283 A CN110150283 A CN 110150283A
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envidor
agent
suspending agent
envidor suspending
preparation
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CN201910445509.XA
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CN110150283B (en
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郭勇飞
张小军
张凯
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SINO-AGRI LEADING BIOSCIENCES Co Ltd
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SINO-AGRI LEADING BIOSCIENCES Co Ltd
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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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
    • A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The present invention relates to a kind of Envidor suspending agents and preparation method thereof, there is preferable preventive effect to red spider, yellow spider, blister mite, yellow tea mite, Tetranychus cinnabarinus and Tetranychus urticae etc., the mite evil that can be used for the solanaceous crops such as the fruit trees such as citrus, grape and eggplant, capsicum, tomato is administered.Its active constituent is Envidor (Spirodiclofen) 1-24%, with weight ratio meter, remaining is agriculturally acceptable dispersing agent, wetting agent, defoaming agent, thickener, preservative, antifreezing agent, deionized water etc., this preparation is prepared as suspending agent use, pass through addition sulfuric acid ester and block polyether class surfactant package, solve the problems, such as that partial size increases in Envidor suspending agent storage process, be conducive to the stabilization of preparation physicochemical property, after long-term storage, preparation still has preferable control efficiency.

Description

A kind of Envidor suspending agent and preparation method thereof
Technical field
The invention belongs to technical field of insecticide, and in particular to a kind of Envidor suspending agent and preparation method thereof.
Background technique
Envidor (spirodiclofen) is first spirocyclic tetronic acid class acaricide that Beyer Co., Ltd develops and develops, It is found and is developed on the basis of screening herbicide by Beyer Co., Ltd.The sales volume of Envidor rose year by year in recent years, was to kill The highest kind of sales volume in mite agent.Envidor belongs to growth and development inhibitor, has action of contace poison, no systemic activity.With it is quick The acaricide knocked down is compared, and drug effect is slower；Compared with chitin insect regulator class acaricide, drug effect is very fast.But Envidor is held The effect phase is longer, and fast-acting type acaricide can be cooperated to use.Envidor and existing acaricide have entirely different mechanism of action, with it His acaricide no interactions resistance, has a extensive future.
The current main dosage form of Envidor is suspending agent, and an important indicator of suspending agent is suspensibility, suspensibility Gao Ze Drug effect is relatively high, and a main problem of Envidor suspending agent is that (54 DEG C, 14d is commonly used in heat storage accelerated test Predict the stability of 2 year storage period of pesticidal preparations) there are problems that partial size growth, with the increase of partial size, Envidor suspending agent Suspensibility decline quickly.Therefore, there is an urgent need to find a kind of Envidor that can effectively control partial size growth in storage process Suspending agent formula, to be conducive to the stabilization of preparation system and giving full play to for drug effect.
Summary of the invention
The object of the present invention is to provide a kind of Envidor suspending agents and preparation method thereof, solve partial size during heating storage The problem of growth, obtains higher suspensibility, to realize the stabilization and good control efficiency of product.
Envidor suspending agent provided by the present invention, active constituent are Envidor, and by weight, Envidor content is 1%-24%, remaining is agriculturally acceptable dispersing agent 1%-5%, wetting agent 0.5%-1%, defoaming agent 0.1%-0.5%, Thickener 0.1%-0.6%, preservative 0.1%-0.3%, antifreezing agent 5%-10%, deionized water complement to 100%；
In the Envidor suspending agent, the dispersing agent can be sulfuric acid ester dispersing agent, concretely Soprohpor At least one of FD, Polystep B21, sipon PD and Alipal CO 433；
The wetting agent can be block polyether class wetting agent, concretely Pluronic PE 10500, Dowfax D- 800, at least one of Emulsogen EP 4901 and Atlas G-5000；
The defoaming agent can be polysiloxane defoamer, concretely 1522 Sag；
The thickener can be or mixtures thereof xanthan gum, aluminium-magnesium silicate.
The preservative can be or mixtures thereof Kathon CG, 1,2-benzisothiazolin-3-one.
The antifreezing agent can be at least one of ethylene glycol, propylene glycol, glycerine and urea.
The Envidor suspending agent concretely it is following 1)~5) in it is any:
1) it is grouped as by the group of following mass percentages:
Envidor raw medicine (active constituent) 1%
Soprohpor FD (sulfuric acid ester dispersing agent) 1%
Pluronic PE 10500 (block polyether class wetting agent) 0.5%
Sag 1522 (polysiloxane defoamer) 0.1%
Xanthan gum (thickener) 0.3%
Aluminium-magnesium silicate 0.3%
Kathon CG (preservative) 0.3%
Ethylene glycol (antifreezing agent) 10%
Deionized water supplies 100%；
2) it is grouped as by the group of following mass percentages:
Envidor raw medicine (active constituent) 5%
Polystep B21 (sulfuric acid ester dispersing agent) 2%
Dowfax D-800 (block polyether class wetting agent) 0.8%
Sag 1522 (polysiloxane defoamer) 0.2%
Xanthan gum (thickener) 0.2%
Aluminium-magnesium silicate 0.2%
Kathon CG (preservative) 0.2%
Propylene glycol (antifreezing agent) 8%
Deionized water supplies 100%；
3) it is grouped as by the group of following mass percentages:
Envidor raw medicine (active constituent) 10%
Sipon PD (sulfuric acid ester dispersing agent) 3%
Emulsogen EP 4901 (block polyether class wetting agent) 1%
Sag 1522 (polysiloxane defoamer) 0.2%
Xanthan gum (thickener) 0.18%
Aluminium-magnesium silicate 0.18%
1,2-benzisothiazolin-3-one (preservative) 0.18%
Urea (antifreezing agent) 5%
Deionized water supplies 100%；
4) it is grouped as by the group of following mass percentages:
Envidor raw medicine (active constituent) 10%
Alipal CO 433 (sulfuric acid ester dispersing agent) 4%
Atlas G-5000 (block polyether class wetting agent) 1%
Sag 1522 (polysiloxane defoamer) 0.4%
Xanthan gum (thickener) 0.1%
1,2-benzisothiazolin-3-one (preservative) 0.1%
Propylene glycol (antifreezing agent) 5%
Deionized water supplies 100%；
5) it is grouped as by the group of following mass percentages:
Envidor raw medicine (active constituent) 24%
Soprophor FD (sulfuric acid ester dispersing agent) 5%
Atlas G-5000 (block polyether class wetting agent) 0.5%
Sag 1522 (polysiloxane defoamer) 0.5%
Xanthan gum (thickener) 0.1%
1,2-benzisothiazolin-3-one (preservative) 0.1%
Propylene glycol (antifreezing agent) 5%
Deionized water supplies 100%.
Above-mentioned Envidor suspending agent passes through the method included the following steps and is prepared:
1) first deionized water, dispersing agent, wetting agent, defoaming agent, antifreezing agent are mixed, adds Envidor raw medicine, stirred Uniformly；
2) mixed liquor for obtaining step 1) is ground to D50=3 μm of partial size；
3) thickener containing preservative prepared in advance is added in the base-material of step 2) preparation, is mixed.
In above method step 2), the grinding uses sanding method, controls temperature during the grinding process at 40 DEG C or less.
Compared with prior art, the present invention can agriculturally be connect by screening suitable dispersing agent and wetting agent and other The raw material received obtains partial size and increases less spiral shell mite by the combination of sulfuric acid ester dispersing agent and block polyether class wetting agent Ester suspending agent solves the problems, such as that suspensibility declines Envidor suspending agent during storage, is conducive to the stabilization of product and prevents Control the raising of effect.
Specific embodiment
The present invention will be described below by way of specific embodiments, but the present invention is not limited thereto.
Experimental method used in following embodiments is conventional method unless otherwise specified；Institute in following embodiments Reagent, material etc., are commercially available unless otherwise specified.
Soprophor FD employed in following embodiments is purchased from Solvay；Pluronic PE 10500 is purchased from BASF Auxiliary Chemicals Co., Ltd.；Polystep B21 is purchased from Stepan Co.；Dowfax D-800 is public purchased from DOW Chemical Department；Sipon PD is purchased from Wenzhou chemical factory；Atlas G-5000 is purchased from the big chemistry of standing grain；Emulsogen EP 4901 is purchased from section's Lay Grace Chemical Co., Ltd.；Other raw material are the product that can be easy to buy on the market.
Embodiment 1,1% Envidor suspending agent
Envidor raw medicine (active constituent) 1%
Soprohpor FD (sulfuric acid ester dispersing agent) 1%
Pluronic PE 10500 (block polyether class wetting agent) 0.5%
Sag 1522 (polysiloxane defoamer) 0.1%
Xanthan gum (thickener) 0.3%
Aluminium-magnesium silicate 0.3%
Kathon CG (preservative) 0.3%
Ethylene glycol (antifreezing agent) 10%
Deionized water supplies 100%.
Envidor raw medicine and unclassified stores are weighed according to the formula of embodiment 1, is testing indoor minitype vertical type sand mill Material in addition to preservative, thickener is ground to partial size D50About 3 μm, then the thickener containing preservative prepared in advance is added Enter to be uniformly mixing to obtain Envidor suspending agent into millbase.
Tested in accordance with the following methods: the measurement of 1. effective component mass fractions, Envidor suspending agent mass fraction is adopted Use high effective liquid chromatography for measuring；The pH of 2.pH, Envidor suspending agent are carried out according to the method for CIPAC MT 75.3；3. suspending The suspensibility test method of rate, Envidor suspending agent is carried out according to CIPAC MT 184；4. wet screening is tested, Envidor suspending agent Wet screening test is carried out according to CIPAC MT 185；5. the persistent foamability of persistent foamability, Envidor suspending agent presses CIPAC MT 47.2 carry out；6. the heat storage stability of heat storage stability, Envidor carries out (54 DEG C, 14d) by GB/T19136-2003 2.3, Data mainly test suspensibility and partial size after heat storage；7. pourability, the pourability of Envidor suspending agent is according to CIPAC MT 148.1 carrying out.
The quality and technical index of 1% Envidor suspending agent prepared by embodiment 1 is shown in Table 1.
The quality and technical index of 1. 1% Envidor suspending agent of table
Embodiment 2,5% Envidor suspending agent
Envidor raw medicine (active constituent) 5%
Polystep B21 (sulfuric acid ester dispersing agent) 2%
Dowfax D-800 (block polyether class wetting agent) 0.8%
Sag 1522 (polysiloxane defoamer) 0.2%
Xanthan gum (thickener) 0.2%
Aluminium-magnesium silicate 0.2%
Kathon CG (preservative) 0.2%
Propylene glycol (antifreezing agent) 8%
Deionized water supplies 100%；
Envidor raw medicine and unclassified stores are weighed according to the formula of embodiment 2, is testing indoor minitype vertical type sand mill Material in addition to preservative, thickener is ground to partial size D50About 3 μm, then the thickener containing preservative prepared in advance is added Enter to be uniformly mixing to obtain Envidor suspending agent into millbase.
Tested in accordance with the following methods: the measurement of 1. effective component mass fractions, Envidor suspending agent mass fraction is adopted Use high effective liquid chromatography for measuring；The pH of 2.pH, Envidor suspending agent are carried out according to the method for CIPAC MT 75.3；3. suspending The suspensibility test method of rate, Envidor suspending agent is carried out according to CIPAC MT 184；4. wet screening is tested, Envidor suspending agent Wet screening test is carried out according to CIPAC MT 185；5. the persistent foamability of persistent foamability, Envidor suspending agent presses CIPAC MT 47.2 carry out；6. the heat storage stability of heat storage stability, Envidor is carried out by GB/T 19136-2003 2.3, data after heat storage Main test suspensibility and partial size；7. the pourability of pourability, Envidor suspending agent is carried out according to CIPAC MT 148.1.
The quality and technical index of 5% Envidor suspending agent prepared by embodiment 2 is shown in Table 2.
The quality and technical index of 2. 5% Envidor suspending agent of table
Embodiment 3,10% Envidor suspending agent
Envidor raw medicine (active constituent) 10%
Sipon PD (sulfuric acid ester dispersing agent) 3%
Emulsogen EP 4901 (block polyether class wetting agent) 1%
Sag 1522 (polysiloxane defoamer) 0.2%
Xanthan gum (thickener) 0.18%
Aluminium-magnesium silicate 0.18%
1,2-benzisothiazolin-3-one (preservative) 0.18%
Urea (antifreezing agent) 5%
Deionized water supplies 100%；
Envidor raw medicine and unclassified stores are weighed according to the formula of embodiment 3, is testing indoor minitype vertical type sand mill Material in addition to preservative, thickener is ground to partial size D50About 3 μm, then the thickener containing preservative prepared in advance is added Enter to be uniformly mixing to obtain Envidor suspending agent into millbase.
Tested in accordance with the following methods: the measurement of 1. effective component mass fractions, Envidor suspending agent mass fraction is adopted Use high effective liquid chromatography for measuring；The pH of 2.pH, Envidor suspending agent are carried out according to the method for CIPAC MT 75.3；3. suspending The suspensibility test method of rate, Envidor suspending agent is carried out according to CIPAC MT 184；4. wet screening is tested, Envidor suspending agent Wet screening test is carried out according to CIPAC MT 185；5. the persistent foamability of persistent foamability, Envidor suspending agent presses CIPAC MT 47.2 carry out；6. the heat storage stability of heat storage stability, Envidor is carried out by GB/T19136-2003 2.3, data after heat storage Main test suspensibility and partial size；7. the pourability of pourability, Envidor suspending agent is carried out according to CIPAC MT 148.1.
The quality and technical index of 10% Envidor suspending agent prepared by embodiment 3 is shown in Table 3.
The quality and technical index of 3. 10% Envidor suspending agent of table
Embodiment 4,20% Envidor suspending agent
Envidor raw medicine (active constituent) 10%
Alipal CO 433 (sulfuric acid ester dispersing agent) 4%
Atlas G-5000 (block polyether class wetting agent) 1%
Sag 1522 (polysiloxane defoamer) 0.4%
Xanthan gum (thickener) 0.1%
1,2-benzisothiazolin-3-one (preservative) 0.1%
Propylene glycol (antifreezing agent) 5%
Deionized water supplies 100%；
Envidor raw medicine and unclassified stores are weighed according to the formula of embodiment 4, is testing indoor minitype vertical type sand mill Material in addition to preservative, thickener is ground to partial size D50About 3 μm, then the thickener containing preservative prepared in advance is added Enter to be uniformly mixing to obtain Envidor suspending agent into millbase.
Tested in accordance with the following methods: the measurement of 1. effective component mass fractions, Envidor suspending agent mass fraction is adopted Use high effective liquid chromatography for measuring；The pH of 2.pH, Envidor suspending agent are carried out according to the method for CIPAC MT 75.3；3. suspending The suspensibility test method of rate, Envidor suspending agent is carried out according to CIPAC MT 184；4. wet screening is tested, Envidor suspending agent Wet screening test is carried out according to CIPAC MT 185；5. the persistent foamability of persistent foamability, Envidor suspending agent presses CIPAC MT 47.2 carry out；6. the heat storage stability of heat storage stability, Envidor is carried out by GB/T19136-2003 2.3, data after heat storage Main test suspensibility and partial size；7. the pourability of pourability, Envidor suspending agent is carried out according to CIPAC MT 148.1.
The quality and technical index of 20% Envidor suspending agent prepared by embodiment 4 is shown in Table 4.
The quality and technical index of 4. 20% Envidor suspending agent of table
Embodiment 5,24% Envidor suspending agent
Envidor raw medicine (active constituent) 24%
Soprophor FD (sulfuric acid ester dispersing agent) 5%
Atlas G-5000 (block polyether class wetting agent) 0.5%
Sag 1522 (polysiloxane defoamer) 0.5%
Xanthan gum (thickener) 0.1%
1,2-benzisothiazolin-3-one (preservative) 0.1%
Propylene glycol (antifreezing agent) 5%
Deionized water supplies 100%
Envidor raw medicine and unclassified stores are weighed according to the formula of embodiment 5, is testing indoor minitype vertical type sand mill Material in addition to preservative, thickener is ground to partial size D50About 3 μm, then the thickener containing preservative prepared in advance is added Enter to be uniformly mixing to obtain Envidor suspending agent into millbase.
Tested in accordance with the following methods: the measurement of 1. effective component mass fractions, Envidor suspending agent mass fraction is adopted Use high effective liquid chromatography for measuring；The pH of 2.pH, Envidor suspending agent are carried out according to the method for CIPAC MT 75.3；3. suspending The suspensibility test method of rate, Envidor suspending agent is carried out according to CIPAC MT 184；4. wet screening is tested, Envidor suspending agent Wet screening test is carried out according to CIPAC MT 185；5. the persistent foamability of persistent foamability, Envidor suspending agent presses CIPAC MT 47.2 carry out；6. the heat storage stability of heat storage stability, Envidor is carried out by GB/T 19136-2003 2.3, data after heat storage Main test suspensibility and partial size；7. the pourability of pourability, Envidor suspending agent is carried out according to CIPAC MT 148.1.
The quality and technical index of 24% Envidor suspending agent prepared by embodiment 5 is shown in Table 5.
The quality and technical index of 5. 24% Envidor suspending agent of table
Comparative example, contrast sample
Envidor raw medicine (active constituent) 24%
Soprophor SC (phosphoric acid ester dispersing agent) 5%
Atlas G-5000 (block polyether class wetting agent) 0.5%
Sag 1522 (polysiloxane defoamer) 0.5%
Xanthan gum (thickener) 0.1%
1,2-benzisothiazolin-3-one (preservative) 0.1%
Propylene glycol (antifreezing agent) 5%
Deionized water supplies 100%；
Envidor raw medicine and unclassified stores are weighed according to the formula of comparative example, it will testing indoor minitype vertical type sand mill Material in addition to preservative, thickener is ground to partial size D50About 3 μm, then the thickener containing preservative prepared in advance is added Envidor suspending agent is uniformly mixing to obtain into millbase.
Tested in accordance with the following methods: the measurement of 1. effective component mass fractions, Envidor suspending agent mass fraction is adopted Use high effective liquid chromatography for measuring；The pH of 2.pH, Envidor suspending agent are carried out according to the method for CIPAC MT 75.3；3. suspending The suspensibility test method of rate, Envidor suspending agent is carried out according to CIPAC MT 184；4. wet screening is tested, Envidor suspending agent Wet screening test is carried out according to CIPAC MT 185；5. the persistent foamability of persistent foamability, Envidor suspending agent presses CIPAC MT 47.2 carry out；6. the heat storage stability of heat storage stability, Envidor is carried out by GB/T 19136-2003 2.3, data after heat storage Main test suspensibility and partial size；7. the pourability of pourability, Envidor suspending agent is carried out according to CIPAC MT 148.1.
The quality and technical index of 24% Envidor suspending agent of comparative example preparation is shown in Table 6.
Soprophor SC in comparative example can also with Morwet d425 (naphthalenesulfonate dispersing agent), Tersperse2500 (polycarboxylic acid dispersant), Borresperse NA (lignin) replacement preparation Envidor suspending agent, heat storage Partial size after test is similar with Soprophor SC preparation Envidor suspending agent partial size growth pattern, D50Increase by 1 times or so, leads Cause suspensibility decline.
The quality and technical index of 6. 24% Envidor suspending agent of table
A kind of Envidor suspending agent and preparation method thereof is provided through the invention, can reach it is following the utility model has the advantages that
The present invention is conducive to protect agroecological environment, and component used is free of organic solvent, reduces the pollution to environment；
Preparation method provided by the invention solves partial size rapid growth in Envidor suspending agent storing process, causes to hang The problem of floating rate decline；
The raw material that the present invention uses can be commercially available, and practicability is very strong.

Claims (10)

1. a kind of Envidor suspending agent, active constituent is Envidor, and by weight, Envidor content is 1%-24%, remaining For agriculturally acceptable dispersing agent 1%-5%, wetting agent 0.5%-1%, defoaming agent 0.1%-0.5%, thickener 0.1%- 0.3%, preservative 0.1%-0.3%, antifreezing agent 5%-10%, deionized water complement to 100%.
2. Envidor suspending agent according to claim 1, it is characterised in that: in the Envidor suspending agent, described point Powder is sulfuric acid ester dispersing agent.
3. Envidor suspending agent according to claim 2, it is characterised in that: the dispersing agent be Soprohpor FD, At least one of Polystep B21, sipon PD and Alipal CO 433.
4. Envidor suspending agent according to any one of claim 1-3, it is characterised in that: the Envidor suspending agent In, the wetting agent is block polyether class wetting agent.
5. Envidor suspending agent according to claim 4, it is characterised in that: the wetting agent is Pluronic PE 10500, at least one of Dowfax D-800, Emulsogen EP 4901 and Atlas G-5000.
6. Envidor suspending agent according to any one of claims 1-5, it is characterised in that: the Envidor suspending agent In, the defoaming agent is polysiloxane defoamer.
7. Envidor suspending agent according to claim 1 to 6, it is characterised in that: the Envidor suspending agent In, the thickener is or mixtures thereof xanthan gum, aluminium-magnesium silicate.
8. Envidor suspending agent described in any one of -7 according to claim 1, it is characterised in that: the Envidor suspending agent In, the preservative is or mixtures thereof Kathon CG, 1,2-benzisothiazolin-3-one；
In the Envidor suspending agent, the antifreezing agent is at least one of ethylene glycol, propylene glycol, glycerine and urea.
9. the method for preparing Envidor suspending agent of any of claims 1-8, comprising:
1) first deionized water, dispersing agent, wetting agent, defoaming agent, antifreezing agent are mixed, adds Envidor raw medicine, stirs evenly；
2) mixed liquor for obtaining step 1) is ground to D50=3 μm of partial size；
3) thickener containing preservative prepared in advance is added in the base-material of step 2) preparation, is mixed.
10. according to the method described in claim 9, it is characterized by: the grinding is being ground using sanding method in step 2) Control temperature is at 40 DEG C or less during mill.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114176085A (en) * 2021-11-29 2022-03-15 天津市汉邦植物保护剂有限责任公司 Preparation method and application of water suspension containing spirodiclofen and 5-nitrouracil

Citations (3)

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Publication number Priority date Publication date Assignee Title
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