CN101589710A - A kind of agricultural water dispersible granule and its production and application - Google Patents
A kind of agricultural water dispersible granule and its production and application Download PDFInfo
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- CN101589710A CN101589710A CNA2009101081645A CN200910108164A CN101589710A CN 101589710 A CN101589710 A CN 101589710A CN A2009101081645 A CNA2009101081645 A CN A2009101081645A CN 200910108164 A CN200910108164 A CN 200910108164A CN 101589710 A CN101589710 A CN 101589710A
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Abstract
The invention belongs to agricultural water dispersible granule, relate to a kind of water dispersant that contains surfactant and its production and application.Comprise at least a surfactant, be processed into rule or irregular particle shape.Preferred version of the present invention is: comprise 1-90 weight %, the surfactant of preferred 2-70 weight %.One of preferred version of the present invention is: described surfactant is an organic silicon surfactant.Preparation method of the present invention is: with formulation material weighing, mixing, pulverizing, granulation, be drying to obtain.The application of water dispersible granules of the present invention: described water dispersible granules can directly mix the back packing with solid pesticide preparation or fertilizer, also can separate packing with pesticidal preparations or fertilizer, and on-the-spot the mixing uses during use.Agricultural water dispersible granule of the present invention and pesticidal preparations or fertilizer are mixed to be used, can play dilution, reduce active constituent content, improve the active ingredient suspensibility, effects such as accelerate dissolution, dispersion, wetting, infiltration, thickening, froth breaking, film forming, adhesion, improve the absorption rate of crop, reduce the pollution of agricultural chemicals and fertilizer environment to active ingredient.
Description
Technical field
The invention belongs to agricultural water dispersible granule, relate to a kind of water dispersant that contains surfactant and its production and application, be mainly used in the use that mixes with pesticidal preparations or fertilizer, do not contain agricultural chemicals, use as the auxiliary agent of pesticidal preparations or fertilizer.
Background technology
The object of the present invention is to provide a kind of efficient, quick (dispersion), stable high agricultural water dispersible granule of dissolving.Another object of the present invention is to provide the preparation method and the application of above-mentioned agricultural water dispersible granule.
At agriculture field, pesticidal preparations and fertilizer must satisfy the restriction of diversified reality.Except that good desinsection, sterilization, weeding, coordinate plant growth being provided, replenishing the performance such as plant nutrient, they also need to satisfy many physical constraints that surpass these basic demands.For example, preparation back soup or solution should have excellent wetting capacity, permeability, adhesivity, dispersiveness, and some surfactant can improve performances such as wetability after configuration of pesticidal preparations or fertilizer, permeability, adhesivity, dispersiveness as everyone knows.
Federation of international pesticide industry association is defined as water-dispersible granules (WG): disintegration and be dispersed into the granular preparation of higher suspension dispersion rapidly after the entry.The agricultural chemicals water-dispersible granules mainly is made up of pesticide activity component, wetting agent, dispersant, disintegrant, stabilizing agent, binding agent and filler key element.
Water-dispersible granules is one of fastest formulation of development in recent years, and might become one of main formulations of pesticide from now on, water dispersible granules with agricultural chemicals make a kind of dried, non-dusting, can free-flow, and a kind of formulations of pesticide that in water, spread easily, international code name is WG.Wherein the prepared WG of aqueous suspension agent drying-granulating is called dried colloidal suspending agent again, international code name DF.WG claims WDG again, and wherein pesticide original medicine is water-soluble is called WSG.
Water dispersible granules is the agricultural chemicals novel formulation that grows up phase early 1980s, be to add suitable auxiliary agent with natural or synthetic carrier, form through the special process granulation, disintegration soon in water, dispersion (dissolving), form the dispersion of higher suspension, the advantage of WG: 1) easy to use 2) do not have bales stained 3) small product size is little, transportation storage convenient 4) no dust, particle disintegration rate fast 5) high wetting, height is being opened up, drug effect brings into play abundant 6) active ingredient covering face width (1% to 95%).Water dispersible granules has the advantage of solid pharmaceutical preparation and liquid preparation, has had both the low advantage of environmental protection and use cost, is the most comprehensive product of combination property in the current pesticidal preparations, has obtained large-scale application at pesticide field.
The problem that exists during pesticidal preparations or fertilizer are used on agricultural:
1, wetability is poor.The content of the surfactant in pesticidal preparations or the fertilizer and kind are all limited, one, be limited by the restriction of active constituent content, perhaps based on the consideration of manufacturing cost aspect, the content of surfactant is lower, usually about 5-30%, and during practical application, often at 500-5000 doubly, the content of surfactant is lower in soup after the dilution or the solution for extension rate, and it is very limited that it reduces capillary effect, cause soup or solution to the target crop wetability, poor permeability, soup or solutions a large amount of in using tumble on the ground, can not play a role, and cause the significant wastage and the environmental pollution of active ingredient.Its two, the surfactant in pesticidal preparations or the fertilizer will satisfy many-sided demand such as wetability, permeability, dispersiveness, stability etc., often takes two or more different surfactants of performance to use simultaneously, especially wretched insufficiency on wetability.They are three years old, be limited by the chemical property of active ingredient, usually some outstanding surfactant and active ingredient generation chemical reaction and influence stability, can not add in the preparation, as on agricultural, obtaining the organic silicon surfactant of widespread adoption, have excellent wetting, infiltration, diffusion, be generally liquid, stable under the neutrallty condition of PH6-8, meet acid or alkali or have water to exist under the situation and decompose, therefore the normal form of packing separately that adopts is sold in agricultural chemicals companion's mode, on-the-spot mixing during use.
2, poor permeability.The quality of permeance property depends primarily on surfactant, is limited by content of effective and chemical property equally, and many outstanding surfactants or use quantity not sufficient maybe can not add, and cause poor permeability.
3, bad dispersibility.For water-fast agricultural chemicals of active ingredient or fertilizer, its dispersiveness is extremely important, and the active ingredient of most of agricultural chemicals is water-fast, need to guarantee its dispersion in soup or solution by control particle size and dispersing aid, and the quality of dispersive property depends primarily on surfactant, same reason, the dispersiveness of pesticidal preparations or fertilizer is usually bad.
4, had separately on the market,, adopted the liquid pouch-packaged,, obtained market achievement preferably because of its good wetting, permeance property as common organic silicon surfactant based on the pesticidal preparations of surfactant or the auxiliary agent of fertilizer.But, because surfactant mostly is liquid or paste, being difficult to be processed as solid pharmaceutical preparation, small part is processed into powdery, and dust from flying in the time of processing and use has caused bigger pollution to environment, has limited its application on agricultural chemicals or manure solids preparation.
Agricultural water dispersible granule promptly contains the water dispersible granules that pesticidal preparations or fertilizer help out that is applied to of surfactant, does not see Related product and report.
At the problems referred to above, the applicant has developed agricultural water dispersible granule.In pesticidal preparations and fertilizer, add, add water dispersible granules of the present invention when perhaps using in addition in the field, the soup or the solution of preparation have good wetability, permeability and plate-out ability, improved the availability of active ingredient, reduced waste and to the pollution of environment, had tangible performance, cost and environment-friendly advantage, its market application foreground is very wide.
Summary of the invention
The objective of the invention is to be achieved through the following technical solutions: a kind of agricultural water dispersible granule, it is characterized in that it comprises at least a surfactant, be processed into rule or irregular particle shape.
Agricultural water dispersible granule of the present invention, it comprises 1-90 weight %, the surfactant of preferred 2-70 weight %.
One of preferred version of the present invention is that described surfactant comprises one or more in anion surfactant, non-ionic surface active agent, cationic surfactant, amphoteric surfactant, natural surfactant, fluorine surfactant, silicon surface active agent, the high molecular surfactant.
That surfactant among the present invention mainly rises is wetting, dispersion and osmosis, and suitable surfactant is for can be used for all the type materials of agrochemical composition usually.
One of preferred version of the present invention is that described surfactant comprises organic silicon surfactant and one or more other surfactants.
One of preferred version of the present invention is: described surfactant is an organic silicon surfactant.
Agricultural water dispersible granule of the present invention can also comprise auxiliary agents such as disintegrant, binder, thickener, defoamer, film forming agent, filler, dyestuff, lubricant, desiccant, and the weight % that accounts for particle respectively is as follows:
Disintegrant 0～40%
Binder 0～15%
Thickener 0～99%
Defoamer 0～50%
Film forming agent 0～80%
Filler 0～99%
Dyestuff 0～5%
Lubricant 0～5%
Desiccant 0～10%
Described disintegrant comprises one or more in ammonium sulfate, calcium chloride, potassium chloride, phosphate ester starch, potassium sulphate, potassium dihydrogen phosphate, sodium phosphate trimer, sodium polyphosphate, alginic acid, sodium chloride, magnesium chloride, urea, bentonite, aluminium chloride, sodium sulphate, attapulgite, white carbon, polyvinyl pyrrolidone, hydroxypropyl cellulose, microcrystalline cellulose, starch, modified starch, Explotab, carboxyrnethyl starch sodium, crosslinked carboxyrnethyl starch sodium, the super carboxyrnethyl starch sodium;
Described binder or film forming agent comprise carboxymethyl cellulose, amino-oligosaccharide, polyvinyl alcohol, ethylene-vinyl acetate copolymer, starch, dextrin, sucrose, syrup, maltose, glucose, polyvinylpyrrolidone, gum Arabic, soybean protein, the arm protein, gelatine, gelatin, sodium silicate, gypsum, shellac, pitch, paraffin, wood is fragrant, polyvinyl acetate, rosin, denaturated sodium polyacrylate, polyethylene glycol, lignosulfonates, the water quality element, methylcellulose, ethyl cellulose, polyacrylamide, hydroxypropyl cellulose, hydroxypropyl methylcellulose, polyethylene azoxy ketone, Hydroxypropylcelliloxe, low-substituted hydroxypropyl cellulose, in the sodium carboxymethylcellulose one or more;
Described thickener comprises one or more in starch, pectin, agar, gelatin, marine alga fat, carrageenan, dextrin, tragacanth gum, xanthans, the plain derivative of polysaccharide, methylcellulose, carboxymethyl cellulose, polyanion cellulose, starch derivatives, casein, Sodium Polyacrylate, polyethylene glycol oxide, polyvinylpyrrolidone, polyvinyl alcohol, low-molecular polyethylene wax, the polyacrylamide;
Described defoamer comprises one or more in the polysiloxanes of natural oil, polyethers, higher alcohols, silicon class, polyether-modified silicon, modification;
Described filler comprises one or more in mineral salt, kaolin, corncob cellulose, soybean, tobacco, rice husk, sulphur, acorn, bentonite, atlapulgite, diatomite, white carbon, concavo-convex rod, clay, montmorillonite, float stone, potter's clay, quicklime, magnesium lime, phosphorus lime, pyrophillite, calcite, dolomite, gypsum, sepiolite, silica, mica, talcum, mud coal, silica gel, starch, dextrin, glucose, mannitol, lactose, the sucrose;
Described dyestuff comprises one or more in direct red brown, direct light yellow, Indian yellow, lemon yellow, sunset yellow, famille rose, acid yellowish-brown, disperse blue, reactive blue, reactive scarlet, Congo red, the amaranth;
Described lubricant comprises one or more in stearic acid, stearate, hydrogenated vegetable oil, polyoxyl 40 stearate, light mineral oil, polyethylene glycol, boric acid, sodium chloride, Sodium Benzoate, sodium acetate, enuatrol, sldium lauryl sulfate, magnesium laurylsulfate, polyoxyethylene lauryl alcohol sodium sulphate, adipic acid, fumaric acid, triacetyl glycerine, sodium carboxymethyl starch, the talcum powder.
Described desiccant comprises one or more in silica gel, soda lime, calcium oxide, calcium chloride, activated alumina, phosphorus pentoxide, anhydrous magnesium sulfate, anhydrous cupric sulfate, anhydrous sodium sulfate, calcium sulphate, montmorillonite, clay desiccant, the molecular sieve desiccant.
Disintegrant among the present invention makes water become in the swelling action infiltration water dispersible granule particle by wicking, accelerates the disintegration of particle.Among the present invention, according to the character of water dispersible granules active ingredient, if suitable, some situation need be added disintegrant.Suitable disintegrants is for being used for all substances of agrochemical composition usually for this purpose.
Binder among the present invention is for active ingredient and auxiliary agent are bonded together, and the intensity of finished product avoids broken in transporting procedures after making things convenient for granulation and guaranteeing granulation, among the present invention, according to the character of water dispersible granules active ingredient, if suitable, some situation need be added binder.Suitable binder is for being used for all substances of agrochemical composition usually for this purpose.
Thickener among the present invention is the viscosity for soup that increases preparation or solution, improves soup or the adhesion property of solution on target crop, satisfies dispenser or the fertilising requirement of some special crops.
Defoamer among the present invention is the excess foam for the soup of eliminating preparation or solution, in order to avoid influence using of soup or solution.
Film forming agent among the present invention is to form layer protecting film for what make the soup used or solution on the target crop surface, improves the availability of active ingredient simultaneously, satisfies dispenser or the fertilising requirement of some special crops.
Filler among the present invention mainly is in order to adsorb the physical behavior of active ingredient and maintenance water dispersible granules, as intensity, hygroscopicity etc.The present invention can add different fillers according to the character and the instructions for use of active ingredient, if suitable, some situation will be added filler.Appropriate filler is for being used for all substances of agrochemical composition usually for this purpose.
Agricultural water dispersible granule of the present invention can be processed into shades of colour, and the purpose that adds colouring agent is in order to change the appearance color of product, to increase the commodity of products energy, and is little to other performance impact of product.Suitable colouring agent is for being used for all substances of agrochemical composition usually for this purpose.
Lubricant among the present invention is granulation for convenience, enhances productivity, and according to the physical property of raw material, some situation can not add, and examples of suitable lubricants is for being used for all substances of agrochemical composition usually for this purpose.
Desiccant among the present invention is in order to ensure keeping dry at the storage life water dispersible granules, and suitable desiccant is for being used for all substances of agrochemical composition usually for this purpose.
More than all auxiliary agents all are known substances, also be material commonly used and that know in medicine, the pesticidal preparations processing, those skilled in the art can add at the different qualities and the different purposes of surfactant.In addition, though disclose the option of various auxiliary agents among the present invention, those skilled in the art know that the disclosed auxiliary agent, the auxiliary agent that other those skilled in the art use always also can be used for the present invention in the present invention, and falls into protection scope of the present invention.
Agricultural water dispersible granule of the present invention can be processed into arbitrary polygon sheet, sphere, cylindric, ellipse or arbitrary polyhedron shape, does not influence its result of use.
The equipment that the preparation of agricultural water dispersible granule of the present invention is used all be widely apply on the market, be known to the technical staff in water dispersible granules field, granulation adopts conventional prilling to realize that these technologies include but not limited to spray drying granulation, freeze drying granulation, extruder grain, cylinder granulation, fluidized bed granulation, fluidized bed prilling, rotary table granulation etc.
The present invention solves another technical scheme that its technical problem adopts, and constructs a kind of method for preparing above-mentioned agricultural water dispersible granule, comprises following processing step and process: with formulation material weighing, mixing, pulverizing, granulation, be drying to obtain.
The application of water dispersible granules of the present invention: mix use with pesticidal preparations or fertilizer, consumption is 1-90 weight %, preferred 2-50 weight %.
Wherein agricultural chemicals comprises insecticide, miticide, bactericide, weed killer herbicide, plant growth regulator etc., can produce synergistic effect, and input-output ratio is higher.
Wherein fertilizer comprises the material of plant nutrients such as containing C, H, O, N, P, K, Ca, Mg, S, Cu, Fe, Mn, Zn, Mo, B, Cl, Si, Na, Co, Se, V, Ni, Ge or beneficial element.Can produce the effect of synergy, improve input-output ratio.
The application of water dispersible granules of the present invention: described water dispersible granules can directly mix the back packing with solid pesticide preparation or fertilizer, also can separate packing with pesticidal preparations or fertilizer, and on-the-spot the mixing uses during use.
That is to say, can with packing again after solid pesticide preparation mixes, or packing and pesticidal preparations separately comprise solid pharmaceutical preparation or liquid preparation, sell with companion's form, when using in the field now with existing mixed.
Agricultural water dispersible granule of the present invention and pesticidal preparations or fertilizer are mixed to be used, can play dilution, reduce active constituent content, improve the active ingredient suspensibility, effects such as accelerate dissolution, dispersion, wetting, infiltration, thickening, froth breaking, film forming, adhesion, improve the absorption rate of crop, reduce the pollution of agricultural chemicals and fertilizer environment to active ingredient.
Concrete embodiment
In order to understand the present invention better, describe the technology contents of invention below in detail with example, but embodiment of the present invention are not limited to these examples.
Embodiment 1
Take by weighing each component raw material according to following proportioning
1 part of cylite ammonium
99 parts of starch
With the said components mixing, through pulverizing the female powder of preparation, female powder and suitable quantity of water solution are mixed, carry out extruder grain then, dry, analytical control warehouse-in obtains cylite ammonium water dispersible granules.
Embodiment 2
Take by weighing each component raw material according to following proportioning
90 parts of lauryl sodium sulfate
10 parts of white carbons
With the said components mixing, through pulverizing the female powder of preparation, female powder and suitable quantity of water solution are mixed, carry out extruder grain then, dry, analytical control warehouse-in obtains the lauryl sodium sulfate water dispersible granules.
Embodiment 3
Take by weighing each component raw material according to following proportioning
2 parts of Tween-80s
58 parts of calcium bicarbonates
40 parts in urea
With the said components mixing, through pulverizing the female powder of preparation, female powder and suitable quantity of water solution are mixed, carry out extruder grain then, dry, analytical control warehouse-in obtains the Tween-80 water dispersible granules.
Embodiment 4
Take by weighing each component raw material according to following proportioning
10 parts of dodecyldimethylammonium hydroxide inner salts
25 parts of silicone oil
60 parts in calcium carbonate
5 parts of magnesium laurylsulfates
With the said components mixing, through pulverizing the female powder of preparation, female powder and suitable quantity of water solution are mixed, carry out fluidized bed prilling then, drying, screening, analytical control warehouse-in obtain the dodecyldimethylammonium hydroxide inner salt water dispersible granules.
Embodiment 5
Take by weighing each component raw material according to following proportioning
15 parts of saponin(es
10 parts of TX-10
This dish-20 10 part
35 parts in calcium carbonate
30 parts of polyvinylpyrrolidones
With the said components mixing, through pulverizing the female powder of preparation, female powder and suitable quantity of water solution are mixed, carry out fluidized bed prilling then, drying, screening, analytical control warehouse-in obtain the water dispersible granules of saponin(e, TX-10 and this dish-20.
Embodiment 6
Take by weighing each component raw material according to following proportioning
18 parts of perfluoroalkyl ethyoxyl ether alcohols
7 parts of azones
4 parts of polyethylene glycol
51 parts of amino-oligosaccharides
15 parts of low-substituted hydroxypropyl celluloses
5 parts in calcium chloride
With the said components mixing, through pulverizing the female powder of preparation, female powder and suitable quantity of water solution are mixed, carry out fluidized bed prilling then, drying, screening, analytical control warehouse-in obtain perfluoroalkyl ethyoxyl ether alcohol and azone water dispersible granules.
Embodiment 7
Take by weighing each component raw material according to following proportioning
35 parts of Silwet L-77 (organic silicon surfactant)
16 parts of wetting agent jfcs
19 parts of detergent LS
0.5 part of polyacrylamide
29.5 parts of calcium bicarbonates
With above-mentioned component mixing except that polyacrylamide, through pulverizing the female powder of preparation, the binder polyacrylamide solution of female powder and 10% is mixed, carry out extruder grain then, drying, screening, analytical control warehouse-in obtain the water dispersible granules of Silwet, wetting agent jfc and detergent LS.
Embodiment 8
Take by weighing each component raw material according to following proportioning
28 parts of Macrogol 2000s
21 parts of phenethyl phenol polyethenoxy polyethenoxy ethers
8 parts of penetrant ts
93 parts of peregals
28.5 parts of white carbons
10 parts in silica gel
1.5 parts of sodium carboxymethylcelluloses
With above-mentioned component mixing except that sodium carboxymethylcellulose, through pulverizing the female powder of preparation, the binder sodium carboxymethyl cellulose solution of female powder and 10% is mixed, carry out extruder grain then, drying, screening, analytical control warehouse-in obtain the water dispersible granules of Macrogol 2000, phenethyl phenol polyethenoxy polyethenoxy ether, penetrant t and peregal 9.
Embodiment 9
Take by weighing each component raw material according to following proportioning
8 parts of aliphatic acid polyethenoxy ether phosphate
8 parts of OP-10
3.95 parts in dextrin
80 parts of amino-oligosaccharides
Lemon yellow 0.05 part
Will be except that dextrin, said components mixing lemon yellow, through pulverizing the female powder of preparation, dextrin is configured to 20% binder dextrin in aqueous solution, in the lemon yellow again adding dextrin in aqueous solution, female powder and the solution that contains colouring agent and dextrin are mixed, carry out rotary table granulation then, drying, screening, analytical control warehouse-in obtain the water dispersible granules of yellow fat acid polyoxyethylene ether phosphate and OP-10.
Embodiment 10
Take by weighing each component raw material according to following proportioning
1.1-5 parts of dimethylamine polyethers organic silicon surfactants
4.9 parts in dextrin
50 parts of polyethers
40 parts of calcium bicarbonates
0.1 part of disperse blue
Will be except that the said components mixing dextrin, the disperse blue, through pulverizing the female powder of preparation, dextrin is configured to 20% binder dextrin in aqueous solution, disperse blue adds in the dextrin in aqueous solution again, female powder and the solution that contains colouring agent and dextrin are mixed, carry out rotary table granulation then, drying, screening, analytical control warehouse-in obtain blue 1.1-dimethylamine polyethers organic silicon surfactant water dispersible granules.
Embodiment 11
Present embodiment is the applicating example of embodiment 7.
10 parts of the water dispersible granules of Silwet, wetting agent jfc and detergent LS
90 parts of 70% acetamiprid water dispersible granules
The two is fully mixed, direct packaging, and significantly improve the wettability of soup.
Embodiment 12
Present embodiment is the applicating example of embodiment 2.
1 part of lauryl sodium sulfate water dispersible granules
99 parts of EDTA-Fe
The two is separately packed, sell, add respectively during use in the water, can significantly improve wetting, the permeability of solution, improve the availability of crop EDTA-Fe with companion's form.
Embodiment 13
Present embodiment is the applicating example of embodiment 9.
2 parts of the water dispersible granules of aliphatic acid polyethenoxy ether phosphate and OP-10
98 parts of 20% Chlorbenzuron deflocculants
The two is separately packed, sell, add respectively during use in the water, can significantly improve wetting, the permeability of soup, improve insecticidal effect with companion's form.
Embodiment 14
Present embodiment is the applicating example of embodiment 10.
1.1-50 parts of dimethylamine polyethers organic silicon surfactant water dispersible granules
50 parts of 10% Affirm (Merck Co.) hydrochloride water dispersible granules
The two is fully mixed, and direct packaging adds during use in the entry, can significantly improve wetting, the permeability of soup, improves insecticidal effect, plays the effect of dilution active constituent content simultaneously.
Embodiment 15
Present embodiment is the applicating example of embodiment 6.
30 parts of the water dispersible granules of perfluoroalkyl ethyoxyl ether alcohol and azone
70 parts of 75% water dispersible granule of nicosulfuron
The two is fully mixed, and direct packaging adds during use in the entry, can significantly improve wetting, the permeability of soup, improves herbicidal effect, plays the effect of dilution active constituent content simultaneously.
In sum, add the pesticidal preparations of gained behind the water dispersible granules of the present invention or fertilizer and played effects such as accelerate dissolution, dispersion, wetting, infiltration, thickening, froth breaking, film forming, adhesion in adding entry the time, improve the absorption rate of crop, reduce the pollution of agricultural chemicals and fertilizer environment to active ingredient.
Though more than described various embodiment of the present invention, should be appreciated that its purpose only is to illustrate, and do not have restricted.Those skilled in the art knows, not leaving under the spirit and scope of the present invention situation, also can make various changes in the form and details.Therefore, protection scope of the present invention is improper only to be confined to arbitrary embodiment described above, limits and should and be equal to according to claim.
Claims (10)
1, a kind of agricultural water dispersible granule is characterized in that it comprises at least a surfactant, is processed into rule or irregular particle shape.
2,, it is characterized in that it comprises 1-90 weight %, the surfactant of preferred 2-70 weight % according to the described water dispersible granules of claim 1.
3, according to the described water dispersible granules of claim 2, it is characterized in that one of preferred version is, described surfactant comprises one or more in anion surfactant, non-ionic surface active agent, cationic surfactant, amphoteric surfactant, natural surfactant, fluorine surfactant, silicon surface active agent, the high molecular surfactant.
4, according to the described water dispersible granules of claim 3, it is characterized in that one of preferred version is, described surfactant comprises organic silicon surfactant and one or more other surfactants.
5, according to the described water dispersible granules of claim 3, it is characterized in that one of preferred version is, described surfactant is an organic silicon surfactant.
6,, it is characterized in that comprising auxiliary agents such as disintegrant, binder, thickener, defoamer, film forming agent, filler, dyestuff, lubricant, desiccant that the weight % that accounts for particle respectively is as follows according to the described water dispersible granules of claim 1:
Disintegrant 0～40%
Binder 0～15%
Thickener 0～99%
Defoamer 0～50%
Film forming agent 0～80%
Filler 0～99%
Dyestuff 0～5%
Lubricant 0～5%
Desiccant 0～10%
Described disintegrant comprises one or more in ammonium sulfate, calcium chloride, potassium chloride, phosphate ester starch, potassium sulphate, potassium dihydrogen phosphate, sodium phosphate trimer, sodium polyphosphate, alginic acid, sodium chloride, magnesium chloride, urea, bentonite, aluminium chloride, sodium sulphate, attapulgite, white carbon, polyvinyl pyrrolidone, hydroxypropyl cellulose, microcrystalline cellulose, starch, modified starch, Explotab, carboxyrnethyl starch sodium, crosslinked carboxyrnethyl starch sodium, the super carboxyrnethyl starch sodium;
Described binder or film forming agent comprise carboxymethyl cellulose, amino-oligosaccharide, polyvinyl alcohol, ethylene-vinyl acetate copolymer, starch, dextrin, sucrose, syrup, maltose, glucose, polyvinylpyrrolidone, gum Arabic, soybean protein, the arm protein, gelatine, gelatin, sodium silicate, gypsum, shellac, pitch, paraffin, wood is fragrant, polyvinyl acetate, rosin, denaturated sodium polyacrylate, polyethylene glycol, lignosulfonates, lignin, methylcellulose, ethyl cellulose, polyacrylamide, hydroxypropyl cellulose, hydroxypropyl methylcellulose, polyethylene azoxy ketone, Hydroxypropylcelliloxe, low-substituted hydroxypropyl cellulose, in the sodium carboxymethylcellulose one or more;
Described thickener comprises one or more in starch, pectin, agar, gelatin, marine alga fat, carrageenan, dextrin, tragacanth gum, xanthans, the plain derivative of polysaccharide, methylcellulose, carboxymethyl cellulose, polyanion cellulose, starch derivatives, casein, Sodium Polyacrylate, polyethylene glycol oxide, polyvinylpyrrolidone, polyvinyl alcohol, low-molecular polyethylene wax, the polyacrylamide;
Described defoamer comprises one or more in the polysiloxanes of natural oil, polyethers, higher alcohols, silicon class, polyether-modified silicon, modification;
Described filler comprises one or more in mineral salt, kaolin, corncob cellulose, soybean, tobacco, rice husk, sulphur, acorn, bentonite, atlapulgite, diatomite, white carbon, concavo-convex rod, clay, montmorillonite, float stone, potter's clay, quicklime, magnesium lime, phosphorus lime, pyrophillite, calcite, dolomite, gypsum, sepiolite, silica, mica, talcum, mud coal, silica gel, starch, dextrin, glucose, mannitol, lactose, the sucrose;
Described dyestuff comprises one or more in direct red brown, direct light yellow, Indian yellow, lemon yellow, sunset yellow, famille rose, acid yellowish-brown, disperse blue, reactive blue, reactive scarlet, Congo red, the amaranth;
Described lubricant comprises one or more in stearic acid, stearate, hydrogenated vegetable oil, polyoxyl 40 stearate, light mineral oil, polyethylene glycol, boric acid, sodium chloride, Sodium Benzoate, sodium acetate, enuatrol, sldium lauryl sulfate, magnesium laurylsulfate, polyoxyethylene lauryl alcohol sodium sulphate, adipic acid, fumaric acid, triacetyl glycerine, sodium carboxymethyl starch, the talcum powder.
Described desiccant comprises one or more in silica gel, soda lime, calcium oxide, calcium chloride, activated alumina, phosphorus pentoxide, anhydrous magnesium sulfate, anhydrous cupric sulfate, anhydrous sodium sulfate, calcium sulphate, montmorillonite, clay desiccant, the molecular sieve desiccant.
As the described water dispersible granules of the arbitrary claim in front, it is characterized in that 7, described agricultural water dispersible granule can be processed into arbitrary polygon sheet, sphere, cylindric, ellipse or arbitrary polyhedron shape.
8, as the preparation method of the described water dispersible granules of the arbitrary claim in front, it is characterized in that, comprise following processing step and process: with formulation material weighing, mixing, pulverizing, granulation, be drying to obtain.
9, as the application of the described water dispersible granules of the arbitrary claim in front, it is characterized in that: mix use with pesticidal preparations or fertilizer, consumption is 1-90 weight %, preferred 2-50 weight %.
10, according to the application of the described water dispersible granules of claim 1, it is characterized in that: described water dispersible granules can directly mix the back packing with solid pesticide preparation or fertilizer, also can separate packing with pesticidal preparations or fertilizer, the on-the-spot mixing uses during use.
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Cited By (32)
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2009
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