CN105613553A - Anti-hydrolysis nicosulfuron water suspension and preparation method therefor - Google Patents

Anti-hydrolysis nicosulfuron water suspension and preparation method therefor Download PDF

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Publication number
CN105613553A
CN105613553A CN201610169216.XA CN201610169216A CN105613553A CN 105613553 A CN105613553 A CN 105613553A CN 201610169216 A CN201610169216 A CN 201610169216A CN 105613553 A CN105613553 A CN 105613553A
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CN
China
Prior art keywords
nicosulfuron
agent
resistant
water
hydrolysis
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610169216.XA
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Chinese (zh)
Inventor
袁彩宾
周斌
曹希敏
张玉坤
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Guangdong Zhongxun Agri Science Corp
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Guangdong Zhongxun Agri Science Corp
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Priority to CN201610169216.XA priority Critical patent/CN105613553A/en
Publication of CN105613553A publication Critical patent/CN105613553A/en
Pending legal-status Critical Current

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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
    • A01N47/08—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 one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
    • 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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  • 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)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses an anti-hydrolysis nicosulfuron water suspension. The water suspension comprises the following components in percentage by weight: 1-35% of nicosulfuron, 1-7% of a stabilizer, 1-8% of a dispersant, 1-10% of a wetting agent, 0.1-2% of a thickener, 1-10% of an anti-freezer, 0.1-1% of a defoamer, 0.1-0.5% of a preservative, a pH regulator that regulates the pH value to be 6-8, and the balance of water. The invention further discloses a preparation method for the water suspension. The preparation method comprises the steps of adding the weighed nicosulfuron, stabilizer, wetting agent, dispersant, anti-freezer, pH regulator, preservative, defoamer and water into a stirring kettle to perform uniform shear mixing; then introducing a mixture into a sand mill to perform sand milling until the particle size is qualified; and finally adding the thickener and performing shearing again to form the anti-hydrolysis nicosulfuron water suspension. The anti-hydrolysis nicosulfuron water suspension provided by the invention has the advantages of high flash point, safety for production storage and use, little environmental pollution, low product cost, easiness for package and the like, and can efficiently and safely meet agricultural production requirements.

Description

A kind of resistant to hydrolysis nicosulfuron water suspending agent and its preparation method
Technical field
The invention belongs to pesticide field, it is specifically related to a kind of resistant to hydrolysis nicosulfuron water suspending agent and its preparation method, belongs to environmentally-friendly water-basedization novel form.
Background technology
Chemical prevention is the important means that the mankind prevent and treat agricultural disease and pest, the increasing both production and income ensureing agricultural is played a part extremely important by chemical pesticide, but the use of agricultural chemicals, while ensureing that grain security is produced, also bring a series of environment and the social concerns such as residual, pollution. Therefore, the developing direction of pesticide preparation industry is progressively to safety, environmental protection, the development of water baseization. Agricultural chemicals suspension agent refers to the preparation that former for solid pesticide medicine is scattered in water with the particulate homogenous of less than 4 microns, is a kind of nonflammable explosive, and particle diameter is little, biological activity height, and proportion is relatively big, the environmental protection type agricultural chemical formulation that packaging volume is less.
Pesticide suspension concentrate has the following advantages compared with conventional dosage forms: without dust hazard; Take water as dispersion medium, it does not have the easy combustion produced by organic solvent and drug injury problem; Than great, packaging volume is little; The dispersion of suspension agent and plate-out ability are all relatively good, suspensibility height, and the ability sticking to plant materials surface is stronger, resistance of rainwater washing against, and thus relatively wettable powder is significantly and also relatively more lasting for drug effect; Have that particle is little, active surface is big, seepage force is strong, cost is low, drug effect height. Therefore, suspension agent is other pesticide formulation safety and environmental protections relatively, and suspension agent has become the bigger pesticide species of water base pesticides new formulation tonnage.
Nicosulfuron also known as: Yu Nongle, cigarette sulphur are grand; Chemical name: 2-(4,6-dimethoxypyridin-2-pyrimidinyl-amino formamido group sulphonyl)-N, N-dimethyl nicotinamide; It is that Shi Yuan Industry Co., Ltd of Japan finds, absorption weedicide in the sulfonylurea that late 1980s and du pont company develop jointly; Nicosulfuron is interior absorption weedicide, can be weeds stem leaf and root absorption, conduct in plant materials subsequently, cause sensitive plant cessation of growth cessation, stem leaf chlorisis, withered gradually, generally death in 20-25 days, but when temperature is lower, some perennial weeds is needed the longer time. Dispenser good drug efficacy before 4 leaf phases after bud, dispenser drug effect decline when seedling is big. This medical instrument has weeding activity before bud, but activity is relatively low after bud. Existing market there is the preparation of nicosulfuron single dose have wettable powder, water dispersible granules, oil-suspending agent. And wettable powder, pulvis also exist big for environment pollution, there is the shortcomings such as power consumption of polymer processing height in water dispersible granules, and relevant nicosulfuron water suspending agent also appears in the newspapers at end. The present invention, aiming to provide a kind of environmentally-friendly water-based agent type of nicosulfuron and its preparation method, overcomes the shortcoming of existing formulation.
Summary of the invention
One of technical problem to be solved by this invention is the shortcomings such as big for environment pollution, the preparation processing energy consumption height existing for the existing formulation of nicosulfuron and provides a kind of environment shadow is little, nicosulfuron water suspending agent that power consumption of polymer processing is low.
The two of technical problem to be solved by this invention, in the preparation method of nicosulfuron water suspending agent, provide a kind of novel form and product innovation, serve agriculture production for pesticide industry.
The present invention is achieved through the following technical solutions:
A kind of resistant to hydrolysis nicosulfuron water suspending agent, it is characterized in that, it is made up of the component of following weight percent: nicosulfuron 1%-35%, stablizer 1%-7%, dispersion agent 1%-8%, wetting agent 1%-10%, thickening material 0.1%-2%, frostproofer 1%-10%, defoamer 0.1%-1%, sanitas 0.1%-0.5%, pH adjusting agent regulates pH to be 6-8, and surplus is water.
Described stablizer selects urea-formaldehyde resin, carbamate, isocyanic ester, the mixing of one or more in Synolac, acrylic resin, benzene emulsion.
Described dispersion agent selects sodium lignosulfonate, xylogen calcium iodate, polycarboxylic acid salt, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, alkyl naphthalene formaldehyde condensate sulfonates, sodium lauryl sulphate, oleic acid salt, the mixing of one or more in alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, polyoxyethylene polyoxypropylene base ether block copolymers, alkylpolyoxyethylene phosphoric acid ester or alkyl naphthalene formaldehyde condensate sulfonates.
Described wetting agent is selected Sodium dodecylbenzene sulfonate, is pulled open powder, the mixing of one or more in SOPA, alkylphenol-polyethenoxy base ether Nonyl pheno base ether, detergent, emulsifying agent 2000 series, wetting and penetrating agent T.
Described thickening stabilizer selects one or both mixing in water soluble resin, xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose gum, hydrated SiO 2, wilkinite, polyvinyl alcohol, polyvinyl alcohol.
The one in ethylene glycol, propylene glycol, glycerol, urea selected by described frostproofer.
The mixing of one or more in the aliphatic alcohols compound of silicone oil, organic silicone, C10-C20 saturated fatty acid compounds, C8-C10 selected by described defoamer.
The one in potassium sorbate, sodium sorbate, Sodium Benzoate, Kathon CG KF88 selected by described sanitas.
Described pH adjusting agent selects the mixing of one or more in sodium hydroxide, ammoniacal liquor, acetic acid, citric acid or phosphoric acid.
A kind of resistant to hydrolysis nicosulfuron water suspending agent of the present invention and its preparation method, described preparation method, comprises the steps:
1, by even to nicosulfuron, stablizer, dispersion agent, wetting agent, defoamer, frostproofer and suitable quantity of water shear-mixed, each component accounts for the per-cent of total mass: nicosulfuron 1%-35%, stablizer 1%-7%, dispersion agent 1%-8%, wetting agent 1%-10%, frostproofer 1%-10%, defoamer 0.1%-1%, sanitas 0.1%-0.5%, pH adjusting agent regulates pH to be 6-8, and surplus is water
2, the pH of mixed solution is regulated to be 6-8 by pH adjusting agent;
3, add water and complement to 100%;
4, mixture is led to sand mill sand milling 4-6 time, it is desired to 90% particle diameter��5um
5, being added by measured for title thickening stabilizer, finally shear-mixed is even again.
Due to the enhancing of people's environmental consciousness so that suspension agent is gradually by the trend being replaced the non-green pesticide forms such as conventional missible oil, pulvis, and agricultural chemicals new constituent newly developed in recent years lists mainly with suspension agent greatly. And its particle diameter is little, suspensibility height, has, at crop leaf, the tackiness that height opens up, and in drug effect, relatively conventional dosage forms improves a lot.
The present invention by nicosulfuron with the Granular composite of miniaturization in water, there is following aspect advantage: 1, product cost is low, it is easy to packaging. 2, taking water as matrix, without dust, environmental pollution is little, to production and user's safety. 3, water base product, flash-point height, does not fire not quick-fried, produces storage safety. 4, after said preparation is sprayed, being distributed in crop surface with fine particle, sterilization effect is good.
Embodiment
In order to understand the essence of the present invention better; below in conjunction with embodiment, the content of the present invention is described in further detail; content mentioned in embodiment is limitation of the invention not; the following stated is only for explaining the present invention; for not deviateing the present invention's spirit and principle amendment, replacement or the improvement made, all belong to the scope of protection of present invention.
According to technical solution of the present invention, the nicosulfuron water suspending agent of different content can be prepared.
Embodiment 1:4% nicosulfuron water suspending agent.
Embodiment 2:2% nicosulfuron water suspending agent.
Embodiment 3:15% nicosulfuron water suspending agent.
Embodiment 4:20% nicosulfuron water suspending agent.
Embodiment 5:25% nicosulfuron water suspending agent.
Embodiment 6:35% nicosulfuron water suspending agent
Prepared nicosulfuron water suspending agent all can reach following technical indicator: suspensibility >=96%; Automatically dispersion property >=90%; PH value 6-8; The 0-2 DEG C of every index of cold storage is qualified; The 52-54 DEG C of every index of heat storage is qualified; The every index of freeze-thaw stability is qualified; Rate of decomposition is not more than 5%.

Claims (10)

1. a resistant to hydrolysis nicosulfuron water suspending agent, it is characterized in that, it is made up of the component of following weight percent: nicosulfuron 1%-35%, stablizer 1%-7%, dispersion agent 1%-8%, wetting agent 1%-10%, thickening material 0.1%-2%, frostproofer 1%-10%, defoamer 0.1%-1%, sanitas 0.1%-0.5%, pH adjusting agent regulates pH to be 6-8, and surplus is water.
2. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterized in that: described stablizer selects urea-formaldehyde resin, carbamate, isocyanic ester, the mixing of one or more in Synolac, acrylic resin, benzene emulsion.
3. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterized in that: described dispersion agent selects sodium lignosulfonate, xylogen calcium iodate, polycarboxylic acid salt, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, alkyl naphthalene formaldehyde condensate sulfonates, sodium lauryl sulphate, oleic acid salt, the mixing of one or more in alkyl polyoxyethylene ether sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products, polyoxyethylene polyoxypropylene base ether block copolymers, alkylpolyoxyethylene phosphoric acid ester or alkyl naphthalene formaldehyde condensate sulfonates.
4. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterised in that: described wetting agent is selected Sodium dodecylbenzene sulfonate, is pulled open powder, the mixing of one or more in SOPA, alkylphenol-polyethenoxy base ether Nonyl pheno base ether, detergent, emulsifying agent 2000 series, wetting and penetrating agent T.
5. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterised in that: described thickening stabilizer selects one or both mixing in water soluble resin, xanthan gum, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose gum, hydrated SiO 2, wilkinite, polyvinyl alcohol, polyvinyl alcohol.
6. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterised in that: the one in ethylene glycol, propylene glycol, glycerol, urea selected by described frostproofer.
7. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterised in that: the mixing of one or more in the aliphatic alcohols compound of silicone oil, organic silicone, C10-C20 saturated fatty acid compounds, C8-C10 selected by described defoamer.
8. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1 and its preparation method, it is characterised in that: the one in potassium sorbate, sodium sorbate, Sodium Benzoate, Kathon CG KF88 selected by described sanitas.
9. the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterised in that: described pH adjusting agent selects the mixing of one or more in sodium hydroxide, ammoniacal liquor, acetic acid, citric acid or phosphoric acid.
10. the preparation method of the nicosulfuron water suspending agent of a kind of resistant to hydrolysis according to claim 1, it is characterized in that: in ratio according to claim 1, weighed the former medicine of cyazofamid, dispersion agent, wetting agent, frostproofer, defoamer, sanitas, pH adjusting agent regulate and water drops in stirring tank that to carry out shear-mixed even, then lead to and carry out sand milling into sand mill, after sand milling to qualified particle diameter, finally add thickening material, again shear evenly just to become.
CN201610169216.XA 2016-03-22 2016-03-22 Anti-hydrolysis nicosulfuron water suspension and preparation method therefor Pending CN105613553A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108684662A (en) * 2018-06-28 2018-10-23 安徽瑞然生物药肥科技有限公司 The preparation method of agricultural chemicals suspension agent
FR3112460A1 (en) * 2020-07-15 2022-01-21 Evergreen Garden Care France Sas HERBICIDE COMPOSITION

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007153870A (en) * 2005-08-10 2007-06-21 Ishihara Sangyo Kaisha Ltd Aqueous suspension herbicidal composition
CN101371664A (en) * 2008-10-21 2009-02-25 上海工程技术大学 Nicosulfuron herbicidal composition containing pesticide builder
CN105165812A (en) * 2015-08-12 2015-12-23 广东中迅农科股份有限公司 Suspending agent containing styrene-acrylic emulsion and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007153870A (en) * 2005-08-10 2007-06-21 Ishihara Sangyo Kaisha Ltd Aqueous suspension herbicidal composition
CN101371664A (en) * 2008-10-21 2009-02-25 上海工程技术大学 Nicosulfuron herbicidal composition containing pesticide builder
CN105165812A (en) * 2015-08-12 2015-12-23 广东中迅农科股份有限公司 Suspending agent containing styrene-acrylic emulsion and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108684662A (en) * 2018-06-28 2018-10-23 安徽瑞然生物药肥科技有限公司 The preparation method of agricultural chemicals suspension agent
FR3112460A1 (en) * 2020-07-15 2022-01-21 Evergreen Garden Care France Sas HERBICIDE COMPOSITION

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Application publication date: 20160601