CN105432615A - Imazamox water dispersion granules and preparation method thereof - Google Patents
Imazamox water dispersion granules and preparation method thereof Download PDFInfo
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- CN105432615A CN105432615A CN201510996821.XA CN201510996821A CN105432615A CN 105432615 A CN105432615 A CN 105432615A CN 201510996821 A CN201510996821 A CN 201510996821A CN 105432615 A CN105432615 A CN 105432615A
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- imazamox
- water dispersible
- dispersible granules
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/50—1,3-Diazoles; Hydrogenated 1,3-diazoles
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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
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
Abstract
The invention provides imazamox water dispersion granules, comprising the following components in percentage by mass: 50-90% of imazamox, 1-10% of a dispersant, 1-5% of a wetting agent, 1-10% of a chelating agent, 0-20% of a disintegrating agent and the balance of a filling material, wherein the dispersant comprises one or more of methylene di-naphthalene sulfonateformaldehyde condensate sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkylnaphthalene sulfonic acidcondensation polymer sodium salt. The imazamox water dispersion granules provided by the invention are high in active ingredient content, do not contain an organic solvent, are environment-friendly, and have good dispersity and a relatively high suspension rate, and an experimental result shows that the imazamox water dispersion granules provided by the invention are good in dispersity, the 3WHO water suspension rate reaches 98%, and the control effect on soybean field weeds is more thanor equal to 90%. The invention also provides a preparation method of the imazamox water dispersion granules.
Description
Technical field
The invention belongs to technical field of medicine, particularly relate to a kind of imazamox water dispersible granules and preparation method thereof.
Background technology
Imazamox, English name Imazamox, chemical name 2-(4-isopropyl-4-methyl-5-oxygen-2-imidazoline-2-base)-5-methoxymethylnicotinic acid is white solid.Imazamox is imidazolinone herbicide kind, absorb by blade, conduct and accumulate in meristematic tissue, suppress the activity of AHAS, branched-chain amino acid-valine, leucine and isoleucine biosynthesis is caused to stop, interference DNA synthesis and cell mitogen and plant growth, finally cause plant dead.Imazamox is applicable to cauline leaf process after Soybean Field seedling, can effectively prevent and treat most of annual gramineae and broad leaved weed, as barnyard grass, green foxtail, amur foxtail, moleplant seed, lady's-grass, dayflower (before 3 leaf phases), piemarker, Amaranthus retroflexus, lamb's-quarters, little lamb's-quarters, Siberian cocklebur, elscholtiza, water sour jujube pin, bur beggar-ticks, chickweed, willow leaf thorn knotweed, weasel hemp nettle etc., there is inhibitory action to perennial corn sow thistle, field thistle etc.This medicament remains short, and the medicament overwhelming majority decomposition failure after dispenser in soil, thus to most succession crop safety.
At present, the formulation of imazamox is mainly missible oil and aqua, and its active constituent content is often not high, is generally no more than 5%.Now along with the increase of environmental protection pressure and the raising of cost of labor, develop a kind of environmental protection, novel form that content is high is urgently to be resolved hurrily.Water dispersible granules of current single imazamox effective ingredient and preparation method thereof there is not yet relevant report both at home and abroad.
Summary of the invention
The object of the present invention is to provide a kind of imazamox water dispersible granules and preparation method thereof, imazamox water dispersible granules provided by the invention environmental protection, and active constituent content is high.
The invention provides a kind of imazamox water dispersible granules, comprise the component of following mass fraction:
Imazamox: 50% ~ 90%; Dispersant: 1 ~ 10%; Wetting agent: 1 ~ 5%; Chelating agent: 1 ~ 10%; Disintegrant: 0 ~ 20%; Surplus is filler;
Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt.
Preferably, described dispersant comprises polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt;
The mass ratio of described polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt is 1:(0.5 ~ 2).
Preferably, the mass ratio of described polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt is 1:1.
Preferably, the mass fraction of described dispersant is 3 ~ 8%.
Preferably, described chelating agent comprises one or more in ethylenediamine tetra-acetic acid, sodium metaphosphate, disodium ethylene diamine tetraacetate and sodium phosphate trimer.
Preferably, the mass fraction of described chelating agent is 2 ~ 8%.
Preferably, described wetting agent comprises one or more in lauryl sodium sulfate, sodium lignin sulfonate, alpha-olefin sodium sulfonate, alkyl phenol polyethenoxy ether sodium sulfate;
The mass fraction of described wetting agent is 2 ~ 4%.
Preferably, described disintegrant comprises one or more in ammonium sulfate, potassium sulfate, diammonium hydrogen phosphate, sodium sulphate and sodium chloride;
The mass fraction of described disintegrant is 2 ~ 15%.
Preferably, described filler comprises one or more in calcined kaolin, corn starch, diatomite, bentonite and talcum powder.
The invention provides a kind of preparation method of imazamox water dispersible granules, comprise the following steps:
A) in mass fraction, by the imazamox of 50 ~ 90%, 1 ~ 10% dispersant, 1 ~ 5% wetting agent, the chelating agent of 1 ~ 10%, the disintegrant of 0 ~ 20% and surplus filler mixing, obtain mixed material;
Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt;
B) by described steps A) in mixed material carry out granulation, obtain imazamox water dispersible granules.
The invention provides a kind of imazamox water dispersible granules, comprise the component of following mass fraction: imazamox: 50% ~ 90%; Dispersant: 1 ~ 10%; Wetting agent: 1 ~ 5%; Chelating agent: 1 ~ 10%; Disintegrant: 0 ~ 20%; Surplus is filler; Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt.Imazamox water dispersible granules active constituent content in the present invention is high, not with an organic solvent, environmentally friendly, and there is good dispersiveness and higher suspensibility, experimental result shows, the good dispersion of the imazamox water dispersible granules in the present invention; 3WHO aqueous suspension rate up to 98%, to the preventive effect of soybean weeds more than 90%.
Embodiment
The invention provides a kind of imazamox water dispersible granules, comprise the component of following mass fraction:
Imazamox: 50 ~ 90%; Dispersant: 1 ~ 10%; Wetting agent: 1 ~ 5%; Chelating agent: 1 ~ 10%; Disintegrant: 0 ~ 20%; Surplus is filler;
Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt.
Imazamox water dispersible granules provided by the invention environmental protection, and active constituent content is high, and there is good dispersiveness and suspension.
In the present invention, the mass fraction of described imazamox is 50 ~ 90%, be preferably 55 ~ 85%, be more preferably 60 ~ 80%, most preferably be 65 ~ 75%, concrete, in an embodiment of the present invention, the mass fraction of described imazamox can be 50%, 54%, 60%, 67%, 70%, 75%, 80%, 86% or 90%.The source of the present invention to described imazamox does not have special restriction, concrete, in an embodiment of the present invention, and the imazamox of the preferred company of Weifang, Shandong Qiao Chang chemistry can be adopted to provide 97%.
In the present invention, described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt, preferably include polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt, the mass ratio of described polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt is preferably 1:(0.5 ~ 2), be more preferably 1:(1 ~ 1.5); The mass fraction of described dispersant is 1 ~ 10%, is preferably 3 ~ 8%, is more preferably 4 ~ 6%; Concrete, in an embodiment of the present invention, can be 4%, 3%, 8%, 5% or 6%; Such as, by alkyl naphthalene sulfonic acid condensation polymer sodium salt 2% and maleic acid-acrylic acid copolymer salt 4% with the use of; By maleic acid-acrylic acid copolymer salt 0.5% and polycarboxylate 2.5% with the use of; By two for Asia naphthalenesulfonate formaldehyde condensation compound sodium salt 6% and alkyl naphthalene sulfonic acid condensation polymer sodium salt 2% with the use of; By maleic acid-acrylic acid copolymer salt 3% and polycarboxylate 2% with the use of; By maleic acid-acrylic acid copolymer salt 5%, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt 1% and polycarboxylate 1% with the use of.The source of the present invention to described dispersant does not have special restriction, concrete, in an embodiment of the present invention, can adopt the Polycarboxylate builder that HUNTSMAN company provides.
In the present invention, described wetting agent preferably includes one or more in lauryl sodium sulfate, sodium lignin sulfonate, Nekal BX, alkyl phenol polyethenoxy ether sodium sulfate, the mass fraction of described wetting agent is 1 ~ 5%, be preferably 2 ~ 4%, most preferably be 3%, concrete, in an embodiment of the present invention, can be 1.5%, 5%, 1%, 4% or 3%.The collocation of different wetting agents can also use by the present invention, such as, by alkyl phenol polyethenoxy ether sodium sulfate 0.5% and Nekal BX 0.5% with the use of; By sodium lignin sulfonate 1% and alkyl phenol polyethenoxy ether sodium sulfate 3% with the use of; By lauryl sodium sulfate 0.5% and sodium lignin sulfonate 1% with the use of; By lauryl sodium sulfate 0.5% and sodium lignin sulfonate 2.5% with the use of.The source of the present invention to described wetting agent does not have special restriction, concrete, in an embodiment of the present invention, and the lauryl sodium sulfate that described wetting agent can adopt Hubei Ju Sheng Science and Technology Ltd. to provide.
In the present invention, described chelating agent preferably includes one or more in ethylenediamine tetra-acetic acid, sodium metaphosphate, disodium ethylene diamine tetraacetate and sodium phosphate trimer; The mass fraction of described chelating agent is 1 ~ 10%, is preferably 3 ~ 8%, is more preferably 4 ~ 6%; Concrete, in an embodiment of the present invention, the mass fraction of described chelating agent can be 1.5%, 10%, 1%, 5%, 3% or 8%.The source of the present invention to described chelating agent does not have special restriction, concrete, in an embodiment of the present invention, and the sodium phosphate trimer that described chelating agent can adopt Weifang Hua Bo Chemical Co., Ltd. to provide.In the present invention, described chelating agent can improve the anti-performance of hard water of described imazamox water dispersible granules.
In the present invention, described disintegrant preferably includes one or more in ammonium sulfate, potassium sulfate, diammonium hydrogen phosphate, sodium sulphate and sodium chloride; The mass fraction of described disintegrant is 0 ~ 20%, is preferably 2 ~ 15%, is more preferably 5 ~ 10%; Concrete, in an embodiment of the present invention, the mass fraction of described disintegrant can be 20%, 13%, 8%, 5%, 10%, 15%, 6% or 3%.
In the present invention, described filler preferably includes one or more in calcined kaolin, corn starch, diatomite, bentonite and talcum powder; The mass percent sum of described filler and other raw materials is 100%.
Concrete, in mass fraction, the imazamox water dispersible granules in the present invention can adopt following proportioning:
Imazamox 50%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 20%, calcined kaolin supply 100%;
Imazamox 60%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 13%, calcined kaolin supply 100%;
Imazamox 70%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 8%, calcined kaolin supply 100%;
Imazamox 80%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 5%, calcined kaolin supply 100%;
Imazamox 90%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, calcined kaolin supply 100%;
Imazamox 50%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, maleic acid-acrylic acid copolymer salt 4%, Nekal BX 5%, sodium phosphate trimer 10%, sodium sulphate 10%, talcum powder supply 100%;
Imazamox 86%, maleic acid-acrylic acid copolymer salt 0.5%, polycarboxylate 2.5%, alkyl phenol polyethenoxy ether sodium sulfate 0.5%, Nekal BX 0.5%, sodium lignin sulfonate 1%, disodium ethylene diamine tetraacetate 1%, corn starch supply 100%;
Imazamox 54%, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt 6%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, sodium lignin sulfonate 1%, alkyl phenol polyethenoxy ether sodium sulfate 3%, sodium phosphate trimer 1%, sodium metaphosphate 4%, diammonium hydrogen phosphate 8%, potassium sulfate 7%, corn starch 5%, talcum powder supply 100%;
Imazamox 75%, maleic acid-acrylic acid copolymer salt 3%, polycarboxylate 2%, lauryl sodium sulfate 0.5%, sodium lignin sulfonate 1%, ethylenediamine tetra-acetic acid 3%, sodium chloride 6%, diatomite supply 100%;
Imazamox 67%, maleic acid-acrylic acid copolymer salt 5%, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt 1%, polycarboxylate 1%, lauryl sodium sulfate 0.5%, sodium lignin sulfonate 2.5%, sodium metaphosphate 8%, diammonium hydrogen phosphate 3%, bentonite supply 100%.
Present invention also offers a kind of preparation method of imazamox water dispersible granules, comprise the following steps:
A) in mass fraction, by the imazamox of 50 ~ 90%, 1 ~ 10% dispersant, 1 ~ 5% wetting agent, the chelating agent of 1 ~ 10%, the disintegrant of 0 ~ 20% and surplus filler mixing, obtain mixed material;
Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt;
B) by described steps A) in mixed material carry out granulation, obtain imazamox water dispersible granules.
The present invention preferably by the imazamox of 50 ~ 90%, 1 ~ 10% dispersant, 1 ~ 5% wetting agent, the chelating agent of 1 ~ 10%, the disintegrant of 0 ~ 20% and surplus filler add mixer, after mixing, pulverize, again the material after pulverizing is mixed, obtain mixed material.In the present invention, the kind of the kind of described imazamox, dispersant, wetting agent, chelating agent, disintegrant and filler, source and consumption and imazamox, dispersant, wetting agent, chelating agent, disintegrant and filler in technique scheme, source and consumption are consistent, do not repeat them here.
In the present invention, the particle diameter of described pulverizing is preferably 20 ~ 40 μm, is more preferably 25 ~ 35 μm; The present invention preferably adopts airslide disintegrating mill to carry out the pulverizing of above-mentioned material.
After obtaining mixed material, the present invention preferably adopts the method for mediating granulation, and granulated by described mixed material, described kneading amount of water is preferably 20 ~ 30% of mixed material quality, is more preferably 25 ~ 28%; The process of described kneading granulation is method of granulating well known to those skilled in the art.
After completing granulation, the water dispersible granules that described granulation obtains preferably is dried by the present invention, obtains imazamox water dispersible granules.In the present invention, the temperature of described oven dry is preferably 50 ~ 90 DEG C, is more preferably 60 ~ 80 DEG C.
The present invention tests the suspensibility of imazamox water dispersible granules in the present invention according to the assay method of CIPACMT184 suspensibility, and result shows, the aqueous suspension rate of the imazamox water dispersible granules in the present invention is 98.2%.
The present invention stores 14 days at 54 DEG C, and then test the stability of imazamox water dispersible granules in the present invention, result shows, the imazamox water dispersible granules stability in the present invention is better, and the disintegrative after heat storage and the change of aqueous suspension rate are not quite.
The present invention is in the 100mL tool plug graduated cylinder (interior high 22.5cm, internal diameter 28mm) containing 90mL distilled water, the imazamox water dispersible granules 0.5g in the present invention is added at 25 DEG C, clamp the middle part of graduated cylinder afterwards, clog nozzle, with the speed of 8r/min around central rotation, until sample complete disintegration in water, result shows, the imazamox water dispersible granules in the present invention is complete disintegration in 60s.
The present invention tests the wet screening test percent of pass of imazamox water dispersible granules in the present invention according to the method in the test of CIPACMT185 wet screening, and result shows, in the present invention, the wet screening test percent of pass of imazamox water dispersible granules is 99.9%.
The present invention tests in the present invention that imazamox water dispersible granules is to the control efficiency of soybean weeds, and result shows, in the present invention imazamox water dispersible granules to the preventive effect of soybean weeds up to 97.1%.
The invention provides a kind of imazamox water dispersible granules, comprise the component of following mass fraction: imazamox: 50% ~ 90%; Dispersant: 1 ~ 10%; Wetting agent: 1 ~ 5%; Chelating agent: 1 ~ 10%; Disintegrant: 0 ~ 20%; Surplus is filler; Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt.Imazamox water dispersible granules in the present invention has the following advantages: (1) avoids use and the dust pollution of a large amount of organic solvent, safety and environmental protection, is convenient to store transport; (2) processing method is simple, is beneficial to continuous mass production; (3) active constituent content is high, reduces packaging, cost of transportation; (4) add chelating agent, have stronger anti-hard water effect, do not limit by region, adaptability is stronger.
In order to further illustrate the present invention, below in conjunction with embodiment, a kind of imazamox water dispersible granules provided by the invention being described in detail, but can not limiting the scope of the present invention being understood as.
In the examples below, imazamox is purchased from Weifang, Shandong Qiao Chang Chemical Co., Ltd.; Alkyl naphthalene sulfonic acid condensation polymer sodium salt is purchased from AkzoNobel; Polycarboxylate, maleic acid-acrylic acid copolymer salt are purchased from HUNTSMAN; Nekal BX is purchased from Zhengzhou Bang Nuo chemical products Co., Ltd; Alkyl phenol polyethenoxy ether sodium sulfate, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt are purchased from Clariant; Sodium lignin sulfonate is purchased from Meadwestvaco.
Embodiment 150% imazamox water dispersible granules
Formula is: imazamox 50%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 20%, calcined kaolin supply 100%.
Preparation method is: imazamox, dispersant, wetting agent, chelating agent, disintegrant, filler added in mixer and mix, after airslide disintegrating mill is crushed to particle diameter 20-40 μm, mix again, mediate amount of water 30%, carry out granulation, 80 DEG C of oven dry, namely can be made into 50% imazamox water dispersible granules product.
Embodiment 260% imazamox water dispersible granules
Formula is: imazamox 60%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 13%, calcined kaolin supply 100%.Preparation method is with embodiment 1.
Embodiment 370% imazamox water dispersible granules
Formula is: imazamox 70%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 8%, calcined kaolin supply 100%.Preparation method is with embodiment 1.
Embodiment 480% imazamox water dispersible granules
Formula is: imazamox 80%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, ammonium sulfate 5%, calcined kaolin supply 100%.Preparation method is with embodiment 1.
Embodiment 590% imazamox water dispersible granules
Formula is: imazamox 90%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, sodium phosphate trimer 1.5%, calcined kaolin supply 100%.Preparation method is with embodiment 1.
Embodiment 650% imazamox water dispersible granules
Formula is: imazamox 50%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, maleic acid-acrylic acid copolymer salt 4%, Nekal BX 5%, sodium phosphate trimer 10%, sodium sulphate 10%, talcum powder supply 100%.Preparation method is with embodiment 1.
Embodiment 786% imazamox water dispersible granules
Formula is: imazamox 86%, maleic acid-acrylic acid copolymer salt 0.5%, polycarboxylate 2.5%, alkyl phenol polyethenoxy ether sodium sulfate 0.5%, Nekal BX 0.5%, sodium lignin sulfonate 1%, disodium ethylene diamine tetraacetate 1%, corn starch supply 100%.Preparation method is with embodiment 1.
Embodiment 854% imazamox water dispersible granules
Formula is: imazamox 54%, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt 6%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, sodium lignin sulfonate 1%, alkyl phenol polyethenoxy ether sodium sulfate 3%, sodium phosphate trimer 1%, sodium metaphosphate 4%, diammonium hydrogen phosphate 8%, potassium sulfate 7%, corn starch 5%, talcum powder supply 100%.Preparation method is with embodiment 1.
Embodiment 975% imazamox water dispersible granules
Formula is: imazamox 75%, maleic acid-acrylic acid copolymer salt 3%, polycarboxylate 2%, lauryl sodium sulfate 0.5%, sodium lignin sulfonate 1%, ethylenediamine tetra-acetic acid 3%, sodium chloride 6%, diatomite supply 100%.Preparation method is with embodiment 1.
Embodiment 1067% imazamox water dispersible granules
Formula is: imazamox 67%, maleic acid-acrylic acid copolymer salt 5%, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt 1%, polycarboxylate 1%, lauryl sodium sulfate 0.5%, sodium lignin sulfonate 2.5%, sodium metaphosphate 8%, diammonium hydrogen phosphate 3%, bentonite supply 100%.Preparation method is with embodiment 1.
Embodiment 1151% imazamox water dispersible granules
Formula is: imazamox 51%, sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt 3%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 4%, sodium lignin sulfonate 2%, alkyl phenol polyethenoxy ether sodium sulfate 1.5%, laminated crystal of sodium disilicate 3.5%, diammonium hydrogen phosphate 5%, sodium sulphate 9%, talcum powder supply 100%.Preparation method is with embodiment 1.
Comparative example 150% imazamox water dispersible granules
Formula is: imazamox 50%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, ammonium sulfate 20%, calcined kaolin supply 100%.Preparation method is with embodiment 1.
Comparative example 270% imazamox water dispersible granules
Formula is: imazamox 70%, alkyl naphthalene sulfonic acid condensation polymer sodium salt 2%, polycarboxylate 2%, lauryl sodium sulfate 1.5%, disodium ethylene diamine tetraacetate 0.5%, ammonium sulfate 8%, calcined kaolin supply 100%.Preparation method is with embodiment 1.
The stability of the present invention to the imazamox water dispersible granules that embodiment 1 ~ 11 and comparative example 1 ~ 2 obtain is tested, result is as shown in table 1, and table 1 is the stability test result of the imazamox water dispersible granules that the embodiment of the present invention 1 ~ 11 and comparative example 1 ~ 2 obtain.
The stability test result of the imazamox water dispersible granules that table 1 embodiment of the present invention 1 ~ 11 and comparative example 1 ~ 2 obtain
Known by table 1, the product stability in the embodiment of the present invention is better, and the disintegrative after heat storage and the change of aqueous suspension rate are not quite, especially after having selected specific preferred auxiliary agent in embodiment 1 ~ 6, property indices is more excellent, and aqueous suspension rate, all more than 94.0%, reaches as high as 98.2%.
Soybean weeds control field control effectiveness test
Test medicine:
The imazamox water dispersible granules that the embodiment of the present invention 1 ~ 11 and comparative example 1 ~ 2 obtain;
Contrast medicament is: 4% imazamox aqua (purchased from Weifang CYNDA Chemical Engineering Co., Ltd).
Experimental condition and application method:
This experimental establishment is carried out at Anhui Huaiyuan County, soyabean field middle fertility, and pH value is 6.8, and soil organic matter content is 1.1%, and experimental field, stubble is wheat.During test, apparatus used is workers and peasants-16 type knapsack hand sprayer.Whole process of the test sprays medicine 1 time altogether, water consumption 450kg/ hectare.After soybean emerges, two panels true leaf is expanded to second trifoliolate leaf and launches medication in period, and now grassy weed should in the 2-4 leaf phase, and broad leaved weed is at 2-7cm.Duration of test weather is good, and dispenser was fine for the same day, non-rainfall in 7 days after medicine.
Soybean Field main weeds is: acalypha copperleaf, kitchen garden, recessed head amaranth, green foxtail, lady's-grass, barnyard grass, lamb's-quarters, knotweed etc.
Investigation method:
After medicine, 30d investigates the remaining strain number of weeds, fresh weight, and calculates strain number preventive effect and fresh weight preventive effect.Irregularly observe soybeans they grow situation after medicine simultaneously, observe the generation with or without poisoning.
Computing formula is as follows:
Described check plot is clear water check plot, does not spray medicament.
Experimental result:
Experimental session, invention formulation has no adverse effects to target crop in test scope of medication, and its control efficiency sees the following form 2, and table 2 is that imazamox water dispersible granules in the embodiment of the present invention 1 ~ 11 and comparative example 1 ~ 2 is to the preventive effect of soybean weeds.
Table 2 is that imazamox water dispersible granules in the embodiment of the present invention 1 ~ 11 and comparative example 1 ~ 2 is to the preventive effect of soybean weeds
As can be seen from Table 2, imazamox water dispersible granules in the present invention effectively can prevent and treat the generation of soybean weeds, and use the preventive effect of the embodiment 1 ~ 5 of preferred promoter and optimum ratio will obviously be better than embodiment 6 ~ 11, with to contrast medicament suitable, and more than 94% is reached to soybean weeds preventive effect.Comparative example 1 and comparative example 2 be not owing to adopting the chelating agent of specific consumption and particular types in the present invention, and its preventive effect obviously reduces.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an imazamox water dispersible granules, comprises the component of following mass fraction:
Imazamox: 50% ~ 90%; Dispersant: 1 ~ 10%; Wetting agent: 1 ~ 5%; Chelating agent: 1 ~ 10%; Disintegrant: 0 ~ 20%; Surplus is filler;
Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt.
2. imazamox water dispersible granules according to claim 1, is characterized in that, described dispersant comprises polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt;
The mass ratio of described polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt is 1:(0.5 ~ 2).
3. imazamox water dispersible granules according to claim 2, is characterized in that, the mass ratio of described polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt is 1:1.
4. imazamox water dispersible granules according to claim 1, is characterized in that, the mass fraction of described dispersant is 3 ~ 8%.
5. imazamox water dispersible granules according to claim 1, is characterized in that, described chelating agent comprises one or more in ethylenediamine tetra-acetic acid, sodium metaphosphate, disodium ethylene diamine tetraacetate and sodium phosphate trimer.
6. imazamox water dispersible granules according to claim 1, is characterized in that, the mass fraction of described chelating agent is 2 ~ 8%.
7. imazamox water dispersible granules according to claim 1, is characterized in that, described wetting agent comprises one or more in lauryl sodium sulfate, sodium lignin sulfonate, Nekal BX, alkyl phenol polyethenoxy ether sodium sulfate;
The mass fraction of described wetting agent is 2 ~ 4%.
8. imazamox water dispersible granules according to claim 1, is characterized in that, described disintegrant comprises one or more in ammonium sulfate, potassium sulfate, diammonium hydrogen phosphate, sodium sulphate and sodium chloride;
The mass fraction of described disintegrant is 2 ~ 15%.
9. imazamox water dispersible granules according to claim 1, is characterized in that, described filler comprises one or more in calcined kaolin, corn starch, diatomite, bentonite and talcum powder.
10. a preparation method for imazamox water dispersible granules, comprises the following steps:
A) in mass fraction, by the imazamox of 50 ~ 90%, 1 ~ 10% dispersant, 1 ~ 5% wetting agent, the chelating agent of 1 ~ 10%, the disintegrant of 0 ~ 20% and surplus filler mixing, obtain mixed material;
Described dispersant comprises one or more in sub-two naphthalenesulfonate formaldehyde condensation compound sodium salt, maleic acid-acrylic acid copolymer salt, polycarboxylate and alkyl naphthalene sulfonic acid condensation polymer sodium salt;
B) by described steps A) in mixed material carry out granulation, obtain imazamox water dispersible granules.
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| CN110122501A (en) * | 2019-06-14 | 2019-08-16 | 青岛润农化工有限公司 | A kind of diflubenzuron water dispersible granules and preparation method thereof |
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