CN106866260A - A kind of Liquid Fertilizer protomere suspending agent and preparation method - Google Patents
A kind of Liquid Fertilizer protomere suspending agent and preparation method Download PDFInfo
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- CN106866260A CN106866260A CN201710168185.0A CN201710168185A CN106866260A CN 106866260 A CN106866260 A CN 106866260A CN 201710168185 A CN201710168185 A CN 201710168185A CN 106866260 A CN106866260 A CN 106866260A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
- C05G5/27—Dispersions, e.g. suspensions or emulsions
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Abstract
The invention provides a kind of Liquid Fertilizer protomere suspending agent and preparation method.The Liquid Fertilizer protomere suspending agent is core shell structure, the core shell structure is with clay as core, the top layer cladding silane coupling agent layer of the clay, the Surface coating colloidal materials layer of the silane coupling agent layer, the silane coupler contains amino or sulfydryl, and the silane coupling agent layer is bonded in the surface of the clay, and the colloidal materials layer is crosslinked with the silane coupling agent layer, wherein, the clay, silane coupling agent layer, the mass ratio of colloidal materials layer are 1：（0.05‑0.1）：（0.05‑0.1）.Liquid Fertilizer protomere suspending agent of the invention has excellent thickening suspension and stability in Liquid Fertilizer, it is possible to increase stabilization time of the clay in Liquid Fertilizer, prevent the fertiliser granulates in Liquid Fertilizer from sinking, and can for a long time prevent Liquid Fertilizer to be layered；And preparation method is simple and easy to apply, it is adapted to industrialization large-scale production.
Description
Technical field
The invention belongs to the fertilizer field of crops, it is related to a kind of liquid fertilizer suspending agent, more particularly to a kind of Liquid Fertilizer is micro-
Micelle suspending agent and preparation method.
Background technology
With developing rapidly for fertilizer trade, the fertilizer development trend of high concentration, fluidization, Composite and slow is increasingly
Substantially, the application technique such as spray, drop, filling starts in national popularization and application, and matched Water soluble fertilizer is gradually concerned.But clear liquid fertilizer
It is high to ingredient requirement, hinder the development of Water soluble fertilizer.Therefore Liquid Fertilizer of the development containing insoluble fertilizer is the quick hair of Water soluble fertilizer
Exhibition brings new opportunities.Particularly some agriculture developed countries, such as U.S., Israel, Japan, Canada, almost half with
On be to develop based on high concentration liquid compound fertilizer.According to relevant information introduction, in general, concentration of fertilizer often improves 10%, just
Fertilizer packaging, storage, the costs of transportation and management 20% or so can be reduced.Liquid fertilizer is due to producing cost is low, nutrient content
It is high, many advantages, such as be easy to be combined, directly can be absorbed, be easy to rational application of fertilizers and mechanized application by crops, increasingly closed
Note, the water-soluble fertilizer product of liquid possesses the feature of new-type fertilizer development.The advantage of liquid fertilizer is mainly reflected in production cost
Without dust during low, small investment, production and transportation, non smoke, using it is convenient, directly by crops absorption, Tree Precise Fertilization, apply
With it is convenient, can the amount of conserving water, reduce the aspects such as manpower is paid and material resources are consumed.
From the point of view of existing fertilizer management policy aspect, there is certain support to liquid fertilizer but also have restriction.Fertilizer is stepped on
Nutrient content limitation of the note standard to liquid Water soluble fertilizer is too many, and the uniformity to the water-soluble fertilizer product of liquid does not propose detailed mark
It is accurate.The problems such as many liquid Water soluble fertilizers in the market all occur depositing, are layered, although the water-soluble fertilizer product of liquid of high concentration
It is normal deposition layering occur, but has to just not influenceed within certain ratio the use of product.And existing mark
Standard is not specified by the ratio of deposition layering, is easy for making substandard product enter market.
In terms of popularization and application, Liquid Fertilizer also faces some limitations.The storage and transport of liquid fertilizer must use specific
Container and haulage vehicle, it is costly, and also need to prepare special mean for applying etc..Meanwhile, under precondition, only preferably
In being produced in situ in, apply, purchase cost is generally higher than solid fertilizer, and some products or mixture are likely to occur salting out or life
Into precipitation, these are all the restrictive factors of liquid fertilizer development.
In terms of the lamination problem of liquid fertilizer is solved, the U.S. mainly uses the Colloidal Clay mineral of an addition part, such as
Bentonite, carclazyte, Attagel, sepiolite etc., consumption about 1%~2%, and make suspension at 28 DEG C viscosity control 300~
The scope of 700mPa s, the method applies the standing time in high concentration liquid fertilizer composite fertilizer short, and fertilizer must in a short time (15
My god) be finished, standing time, long generation was layered caking；At home, mainly by adding the cellulose family of high viscosity HMW
Material, such as suspension type liquid compound fertilizer of patent 200910192150.6 and preparation method thereof, the ethoxy of addition 4~12% are fine
Dimension element, to improve the viscosity of suspension, the cellulose family large percentage that the method is added, cost is too high, and without composite suspension
The effect of agent is good.
China is a large agricultural country, and fertilizer consumption occupies first place in the world.In substantial amounts of fertilizer consumption, liquid fertilizer
Shared by consumption figure than escheat very little, sizable gap is also there is compared with developed country in the world, wherein, floating type liquid
Compound fertilizer, at home also in the starting stage, it is only a small amount of about suspension type liquid fertilizer in terms of report.Such as China specially
Sharp application number 200910214354.5《High-nitrogen organic suspension liquid compound fertilizer and preparation method thereof》, Chinese Patent Application No.
200910192150.6《Suspension type liquid compound fertilizer and preparation method thereof》With Chinese Patent Application No. 200910214269.9
《A kind of organic liquid compound fertilizer and preparation method thereof》, these patents only reported cellulose family with bentonite etc. as suspend
The fertilizer of agent production, has only carried out 1 suspension effect, and suspending agent consumption is big, and every 1000 weight portion takes around suspending agent 20-
120 weight portions, considerably increase fertilizer cost.And due to only having carried out 1 suspension effect, the suspension fertilizer of production suspends
Limited time, is long placed in easily precipitation, and stability and suspension are poor, run into salt content fertilizer high, and suspension effect is poor, it is difficult to raw
Output high-concentration suspension fertilizer.
As can be seen here, in order that Liquid Fertilizer suspendability stabilization, the subject matter to be solved is how to prevent from precipitating, solve
Certainly it is layered.Leading to customary thickeners for the problem, in current existing technology increases system viscosity, prevents fertiliser granulates from sinking,
But the problem being substantially increased of cost is only caused again by thickenings such as addition thickener hydroxyethyl cellulose, xanthans, and is used
Clay mineral, there is also the defect that viscosity standing time can not be long.
The content of the invention
In view of the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of Liquid Fertilizer protomere suspending agent and system
Preparation Method.The Liquid Fertilizer protomere suspending agent and the fertiliser granulates sinking being prevented from Liquid Fertilizer, can for a long time prevent liquid
Body nutriment in a fertilizer layer.The preparation method is simple and easy to apply, is adapted to large-scale production.
In order to reach object defined above, the present invention provides a kind of Liquid Fertilizer protomere suspending agent, wherein, the micro- glue of Liquid Fertilizer
Grain suspending agent is core shell structure, and the core shell structure is with clay as core, and the top layer cladding silane coupling agent layer of the clay is described
The Surface coating colloidal materials layer of silane coupling agent layer, the silane coupler contains amino or sulfydryl, and described silane coupled
Oxidant layer is bonded in the surface of the clay, the colloidal materials layer and silane coupling agent layer crosslinking, wherein, the clay,
Silane coupling agent layer, the mass ratio of colloidal materials layer are 1：（0.05-0.1）：（0.05-0.1）.
In aforesaid liquid fertilizer protomere suspending agent, it is preferable that the particle diameter of the Liquid Fertilizer protomere suspending agent is
100nm-50μm。
In aforesaid liquid fertilizer protomere suspending agent, it is preferable that the clay include montmorillonite, kaolin, bentonite or
The combination of one or more in concave convex rod.
In aforesaid liquid fertilizer protomere suspending agent, it is preferable that the silane coupler in the silane coupling agent layer includes
N- β-(aminoethyl)-γ aminopropyl trimethoxysilanes, 3- aminopropyl trimethoxysilanes, 3- aminopropyl triethoxysilicanes
The combination of one or more in alkane, 3- mercaptopropyl trimethoxysilanes and 3- mercaptopropyltriethoxysilanes.
In aforesaid liquid fertilizer protomere suspending agent, it is preferable that the colloidal materials in the colloidal materials layer include me
One kind in primary glue, sodium carboxymethylcellulose, polyvinyl alcohol, polyvinyl acetate, oxidized starch, etherification starch and xanthans or
Several combinations.
In aforesaid liquid fertilizer protomere suspending agent, it is preferable that contain crosslinking agent, the colloid in the colloidal materials layer
Material is 1 with the mass ratio of the crosslinking agent：（0.2-0.5）.
In aforesaid liquid fertilizer protomere suspending agent, it is preferable that the crosslinking agent include GDMA,
The combination of one or more in divinylbenzene, hexa-methylene bisacrylamide, trihydroxy methyl propane trimethyl acrylate.
Silane coupling layer, colloidal materials layer are wrapped in clay by aforesaid liquid fertilizer protomere suspending agent with clay as core
Surface, it is possible to increase stabilization time of the clay in Liquid Fertilizer, while can also prevent the fertiliser granulates in Liquid Fertilizer from sinking,
So as to prevent Liquid Fertilizer to be layered for a long time.
The present invention also provides the preparation method of aforesaid liquid fertilizer protomere suspending agent, and it is comprised the following steps：
Step one：In mass ratio it is 1 by clay：（10-50）It is distributed in organic solvent, is subsequently adding silane coupler, 50
Magnetic agitation 3h-6h at DEG C -100 DEG C, then filtration drying, obtains the clay particle of Surface coating silane coupling agent layer；
Step 2：Colloidal materials and water are mixed to form the colloidal materials aqueous solution, crosslinking agent is then added under magnetic stirring, and
1h-3h is crosslinked at 80 DEG C -120 DEG C, suspension emulsion is formed, the mass ratio of the colloidal materials, water and crosslinking agent is 1：（10-
50）：（0.2-0.5）；
Step 3：Carried out during the clay particle of the Surface coating silane coupling agent layer is sent into high pressure homogenizer with suspension emulsion
Homogeneous, crosslinking, are then refined to nanoscale, form mixed liquor, and the high pressure homogenizer pressure is 10MPa-20MPa, and temperature is
80 DEG C -120 DEG C, the time is 20min-40min；
Step 4：The mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
Wherein, the rotating speed of magnetic agitation is 800rpm/min -1200rpm/min.
In above-mentioned preparation method, it is preferable that the organic solvent includes ethanol, methyl alcohol, isopropanol, acetone, benzene, toluene
With the combination of one or more in dimethylbenzene.
The silane coupler containing amino, sulfydryl is bonded to the surface of clay particle with clay as core for the present invention, is obtained
The clay particle of Surface coating silane coupling agent layer, then further by Arabic gum, sodium carboxymethylcellulose, polyvinyl alcohol,
Polyvinyl acetate, oxidized starch, etherification starch, xanthans isocolloid material and crosslinking agent are wrapped in silane idol by homogenizer
Join the surface of oxidant layer and be crosslinked, so as to form three-layer nuclear shell structure, obtain by micro- glue of silane coupling layer, colloidal materials layer parcel
Grain suspending agent, the protomere suspending agent has excellent thickening suspension and stability in Liquid Fertilizer, and preparation cost is low, just
In industrialized production.
A kind of Liquid Fertilizer protomere suspending agent of the present invention and preparation method, compared with prior art, the characteristics of its protrusion and
Excellent effect is：
（1）The Liquid Fertilizer protomere suspending agent that the present invention is provided can improve stabilization time of the clay in Liquid Fertilizer, while also
The fertiliser granulates being prevented from Liquid Fertilizer sink such that it is able to prevent Liquid Fertilizer to be layered for a long time；
（2）The Liquid Fertilizer protomere suspending agent that the present invention is provided has excellent thickening suspension and stability in Liquid Fertilizer；
（3）The present invention provide Liquid Fertilizer protomere suspending agent preparation method with clay as core, by the silicon containing amino, sulfydryl
Alkane coupling agent is bonded to the surface of clay particle, obtains the clay particle of Surface coating silane coupling agent layer, then further will
Arabic gum, sodium carboxymethylcellulose, polyvinyl alcohol, polyvinyl acetate, oxidized starch, etherification starch, xanthans isocolloid
Material is wrapped in the surface of silane coupling agent layer and is crosslinked with crosslinking agent by homogenizer, so as to form three-layer nuclear shell structure, obtains
To the protomere suspending agent by silane coupling layer, colloidal materials layer parcel, preparation method is simple and easy to apply, is adapted to industrialization extensive
Production.
Specific embodiment
Below by way of specific embodiment, the present invention is described in further detail, but this should not be interpreted as into the present invention
Scope be only limitted to following example.In the case where above method thought of the present invention is not departed from, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of preparation method of Liquid Fertilizer protomere suspending agent is present embodiments provided, it is comprised the following steps：
10 grams of montmorillonites are distributed in 50 grams of toluene, 1 gram of 3- aminopropyl trimethoxysilane are subsequently adding, at a temperature of 50 DEG C
Magnetic agitation 3h, then filtration drying, obtains the montmorillonite particle of Surface coating 3- aminopropyl trimethoxysilanes layer；
Step 2：1 gram of Arabic gum and 50 grams of water are mixed to form the Arabic gum aqueous solution, are then added under magnetic stirring
0.5 gram of GDMA, and 1h is crosslinked at 80 DEG C, form suspension emulsion；
Step 3：The montmorillonite particle of Surface coating 3- aminopropyl trimethoxysilanes layer and suspension emulsion are sent into high-pressure homogeneous
Homogeneous, crosslinking are carried out in machine, nanoscale is then refined to, mixed liquor is formed, high pressure homogenizer pressure is 10MPa, and temperature is 80
DEG C, the time is 30min；
Step 4：Mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
In above-mentioned steps, the rotating speed of magnetic agitation is 800rpm/min.
Liquid Fertilizer protomere suspending agent obtained in the present embodiment is tested, it is found that the Liquid Fertilizer protomere suspending agent is
Core shell structure,, with montmorillonite as core, the top layer of montmorillonite coats one layer of 3- aminopropyl trimethoxysilanes layer, the 3- aminopropyls for it
The Arabic glue-line of one layer of Surface coating of trimethoxy silane layer, 3- aminopropyl trimethoxysilanes layer is bonded in the table of montmorillonite
Face, Arabic glue-line is crosslinked with 3- aminopropyl trimethoxysilanes layer by GDMA.The present embodiment system
The particle diameter of the Liquid Fertilizer protomere suspending agent for obtaining is 500nm-30 μm.
Embodiment 2
A kind of preparation method of Liquid Fertilizer protomere suspending agent is present embodiments provided, it is comprised the following steps：
10 grams of kaolin are distributed in 50 grams of toluene, 1 gram of APTES is subsequently adding, in 50 DEG C of temperature
Lower magnetic agitation 3h, then filtration drying, obtains the kaolin particle of Surface coating APTES layer；
Step 2：1 gram of xanthans and 50 grams of water are mixed to form xanthan gum solution, 0.5 gram is then added under magnetic stirring
GDMA, and 1h is crosslinked at 100 DEG C, form suspension emulsion；
Step 3：The kaolin particle of Surface coating APTES layer is equal with suspension emulsion feeding high pressure
Homogeneous, crosslinking are carried out in matter machine, nanoscale is then refined to, mixed liquor is formed, high pressure homogenizer pressure is 10MPa, and temperature is
100 DEG C, the time is 30min；
Step 4：Mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
In above-mentioned steps, the rotating speed of magnetic agitation is 900rpm/min.
Liquid Fertilizer protomere suspending agent obtained in the present embodiment is tested, it is found that the Liquid Fertilizer protomere suspending agent is
Core shell structure,, with kaolin as core, kaolinic top layer coats one layer of APTES layer, the 3- amino for it
One layer of xanthan gum layer of Surface coating of propyl-triethoxysilicane layer, APTES layer is bonded in kaolin
Surface, xanthan gum layer and APTES layer is crosslinked by GDMA.This implementation
The particle diameter of the obtained Liquid Fertilizer protomere suspending agent of example is 200nm-20 μm.
Embodiment 3
A kind of preparation method of Liquid Fertilizer protomere suspending agent is present embodiments provided, it is comprised the following steps：
10 grams of montmorillonites are distributed in 50 grams of toluene, 1 gram of 3- mercaptopropyl trimethoxysilane are subsequently adding, at a temperature of 50 DEG C
Magnetic agitation 3h, then filtration drying, obtains the montmorillonite particle of Surface coating 3- mercaptopropyl trimethoxysilanes layer；
Step 2：0.5 gram of Arabic gum, 0.5 gram of polyvinyl alcohol and 50 grams of water are mixed to form the colloidal materials aqueous solution, Ran Hou
0.5 gram of hexa-methylene bisacrylamide is added under magnetic agitation, and 1h is crosslinked at 80 DEG C, form suspension emulsion；
Step 3：The montmorillonite particle of Surface coating 3- mercaptopropyl trimethoxysilanes layer and suspension emulsion are sent into high-pressure homogeneous
Homogeneous, crosslinking are carried out in machine, nanoscale is then refined to, mixed liquor is formed, high pressure homogenizer pressure is 15MPa, and temperature is 80
DEG C, the time is 30min；
Step 4：Mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
In above-mentioned steps, the rotating speed of magnetic agitation is 900rpm/min.
Liquid Fertilizer protomere suspending agent obtained in the present embodiment is tested, it is found that the Liquid Fertilizer protomere suspending agent is
Core shell structure,, with montmorillonite as core, the top layer of montmorillonite coats one layer of 3- mercaptopropyl trimethoxysilanes layer, the 3- mercapto propyl group for it
One layer of Arabic gum/polyvinyl alcohol layer of Surface coating of trimethoxy silane layer, 3- mercaptopropyl trimethoxysilanes layer is bonded in
The surface of montmorillonite, Arabic gum/polyvinyl alcohol layer passes through hexamethylene bis acryloyl with 3- mercaptopropyl trimethoxysilanes layer
Amine is crosslinked.The particle diameter of Liquid Fertilizer protomere suspending agent obtained in the present embodiment is 300nm-20 μm.
Embodiment 4
A kind of preparation method of Liquid Fertilizer protomere suspending agent is present embodiments provided, it is comprised the following steps：
10 grams of concave convex rods are distributed in 50 grams of toluene, 1 gram of 3- mercaptopropyl trimethoxysilane are subsequently adding, at a temperature of 50 DEG C
Magnetic agitation 3h, then filtration drying, obtains the concave-convex rod particle of Surface coating 3- mercaptopropyl trimethoxysilanes layer；
Step 2：1 gram of polyvinyl acetate and 50 grams of water are mixed to form polyvinyl acetate aqueous solution of ester, then in magnetic agitation
0.5 gram of GDMA of lower addition, and 1h is crosslinked at 80 DEG C, form suspension emulsion；
Step 3：The concave-convex rod particle of Surface coating 3- mercaptopropyl trimethoxysilanes layer and suspension emulsion are sent into high-pressure homogeneous
Homogeneous, crosslinking are carried out in machine, nanoscale is then refined to, mixed liquor is formed, high pressure homogenizer pressure is 16MPa, and temperature is 80
DEG C, the time is 30min；
Step 4：Mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
In above-mentioned steps, the rotating speed of magnetic agitation is 1000rpm/min.
Liquid Fertilizer protomere suspending agent obtained in the present embodiment is tested, it is found that the Liquid Fertilizer protomere suspending agent is
Core shell structure,, with concave convex rod as core, the top layer of concave convex rod coats one layer of 3- mercaptopropyl trimethoxysilanes layer, the 3- mercapto propyl group for it
The strata vinyl acetate layer of Surface coating one of trimethoxy silane layer, 3- mercaptopropyl trimethoxysilanes layer is bonded in concave convex rod
Surface, polyvinyl acetate ester layer and 3- mercaptopropyl trimethoxysilanes layer is crosslinked by GDMA.This
The particle diameter of Liquid Fertilizer protomere suspending agent obtained in embodiment is 200nm-40 μm.
Embodiment 5
A kind of preparation method of Liquid Fertilizer protomere suspending agent is present embodiments provided, it is comprised the following steps：
10 grams of bentonites are distributed in 50 grams of toluene, 1 gram of N- β-(aminoethyl)-γ aminopropyl trimethoxy silicon is subsequently adding
Alkane, the magnetic agitation 3h at a temperature of 50 DEG C, then filtration drying, obtains Surface coating N- β-(aminoethyl)-γ aminopropyl front threes
The bentonite clay particle of TMOS layer；
Step 2：1 gram of polyvinyl acetate and 50 grams of water are mixed to form polyvinyl acetate aqueous solution of ester, then in magnetic agitation
0.5 gram of trihydroxy methyl propane trimethyl acrylate of lower addition, and 1h is crosslinked at 100 DEG C, form suspension emulsion；
Step 3：By bentonite clay particle and the breast that suspends of Surface coating N- β-(aminoethyl)-γ aminopropyl trimethoxysilanes layer
Homogeneous, crosslinking are carried out in liquid feeding high pressure homogenizer, nanoscale is then refined to, mixed liquor is formed, high pressure homogenizer pressure is
20MPa, temperature is 100 DEG C, and the time is 30min；
Step 4：Mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
In above-mentioned steps, the rotating speed of magnetic agitation is 1100rpm/min.
Liquid Fertilizer protomere suspending agent obtained in the present embodiment is tested, it is found that the Liquid Fertilizer protomere suspending agent is
Core shell structure,, with bentonite as core, bentonitic top layer coats one layer of N- β-(aminoethyl)-γ aminopropyl trimethoxysilane for it
Layer, the strata vinyl acetate layer of Surface coating one of the N- β-(aminoethyl)-γ aminopropyl trimethoxysilanes layer, N- β-(ammonia
Ethyl)-γ aminopropyl trimethoxysilanes layer is bonded in bentonitic surface, polyvinyl acetate ester layer and N- β-(aminoethyl)-
γ aminopropyl trimethoxysilanes layer is crosslinked by trihydroxy methyl propane trimethyl acrylate.Liquid Fertilizer obtained in the present embodiment
The particle diameter of protomere suspending agent is 200nm-35 μm.
Embodiment 6
10 grams of montmorillonites are distributed in 50 grams of toluene, 1 gram of 3- mercaptopropyl trimethoxysilane are subsequently adding, at a temperature of 50 DEG C
Magnetic agitation 3h, then filtration drying, obtains the montmorillonite particle of Surface coating 3- mercaptopropyl trimethoxysilanes layer；
Step 2：0.5 gram of oxidized starch, 0.5 gram of etherification starch and 50 grams of water are mixed to form the colloidal materials aqueous solution, Ran Hou
0.5 gram of hexa-methylene bisacrylamide is added under magnetic agitation, and 1h is crosslinked at 80 DEG C, form suspension emulsion；
Step 3：The montmorillonite particle of Surface coating 3- mercaptopropyl trimethoxysilanes layer and suspension emulsion are sent into high-pressure homogeneous
Homogeneous, crosslinking are carried out in machine, nanoscale is then refined to, mixed liquor is formed, high pressure homogenizer pressure is 15MPa, and temperature is 80
DEG C, the time is 30min；
Step 4：Mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
In above-mentioned steps, the rotating speed of magnetic agitation is 900rpm/min.
Liquid Fertilizer protomere suspending agent obtained in the present embodiment is tested, it is found that the Liquid Fertilizer protomere suspending agent is
Core shell structure,, with montmorillonite as core, the top layer of montmorillonite coats one layer of 3- mercaptopropyl trimethoxysilanes layer, the 3- mercapto propyl group for it
One layer of oxidized starch of Surface coating of trimethoxy silane layer/etherification starch layer, 3- mercaptopropyl trimethoxysilanes layer is bonded in
The surface of montmorillonite, oxidized starch/etherification starch layer passes through hexamethylene bis acryloyl with 3- mercaptopropyl trimethoxysilanes layer
Amine is crosslinked.The particle diameter of Liquid Fertilizer protomere suspending agent obtained in the present embodiment is 300nm-30 μm.
The preparation method of the Liquid Fertilizer protomere suspending agent provided from embodiment 1-6, the present invention, will with clay as core
Silane coupler containing amino, sulfydryl is bonded to the surface of clay particle, obtains the clay of Surface coating silane coupling agent layer
Particle, then further by Arabic gum, sodium carboxymethylcellulose, polyvinyl alcohol, polyvinyl acetate, oxidized starch, etherificate
Starch, xanthans isocolloid material and crosslinking agent are wrapped in the surface of silane coupling agent layer and are crosslinked by homogenizer, so that shape
Into three-layer nuclear shell structure, obtain by the protomere suspending agent of silane coupling layer, colloidal materials layer parcel, preparation method is simply easy
OK, it is adapted to industrialization large-scale production.And the present invention prepare Liquid Fertilizer protomere suspending agent in Liquid Fertilizer have it is excellent
Thickening suspension and stability, while can also prevent the fertiliser granulates in Liquid Fertilizer from sinking, prevent Liquid Fertilizer to be layered for a long time.
Claims (9)
1. a kind of Liquid Fertilizer protomere suspending agent, it is characterised in that：The Liquid Fertilizer protomere suspending agent is core shell structure, described
With clay as core, the top layer of the clay coats silane coupling agent layer, the Surface coating of the silane coupling agent layer to core shell structure
Colloidal materials layer, the silane coupler contains amino or sulfydryl, and the silane coupling agent layer is bonded in the table of the clay
Face, the colloidal materials layer and silane coupling agent layer crosslinking, wherein, the clay, silane coupling agent layer, colloidal materials layer
Mass ratio be 1：（0.05-0.1）：（0.05-0.1）.
2. Liquid Fertilizer protomere suspending agent according to claim 1, it is characterised in that：The Liquid Fertilizer protomere suspending agent
Particle diameter be 100nm-50 μm.
3. Liquid Fertilizer protomere suspending agent according to claim 1, it is characterised in that：The clay includes montmorillonite, height
The combination of one or more in ridge soil, bentonite or concave convex rod.
4. Liquid Fertilizer protomere suspending agent according to claim 1, it is characterised in that：Silicon in the silane coupling agent layer
Alkane coupling agent includes N- β-(aminoethyl)-γ aminopropyl trimethoxysilanes, 3- aminopropyl trimethoxysilanes, 3- aminopropyls
The combination of one or more in triethoxysilane, 3- mercaptopropyl trimethoxysilanes and 3- mercaptopropyltriethoxysilanes.
5. Liquid Fertilizer protomere suspending agent according to claim 1, it is characterised in that：Colloid in the colloidal materials layer
Material includes Arabic gum, sodium carboxymethylcellulose, polyvinyl alcohol, polyvinyl acetate, oxidized starch, etherification starch and xanthan
The combination of one or more in glue.
6. Liquid Fertilizer protomere suspending agent according to claim 1 or 5, it is characterised in that：Contain in the colloidal materials layer
Crosslinking dose, the colloidal materials are 1 with the mass ratio of the crosslinking agent：（0.2-0.5）.
7. Liquid Fertilizer protomere suspending agent according to claim 6, it is characterised in that：The crosslinking agent includes dimethyl propylene
One kind in olefin(e) acid glycol ester, divinylbenzene, hexa-methylene bisacrylamide, trihydroxy methyl propane trimethyl acrylate
Or several combinations.
8. the preparation method of a kind of Liquid Fertilizer protomere suspending agent as described in claim any one of 1-7, it includes following step
Suddenly：
Step one：In mass ratio it is 1 by clay：（10-50）It is distributed in organic solvent, is subsequently adding silane coupler, 50
Magnetic agitation 3h-6h at DEG C -100 DEG C, then filtration drying, obtains the clay particle of Surface coating silane coupling agent layer；
Step 2：Colloidal materials and water are mixed to form the colloidal materials aqueous solution, crosslinking agent is then added under magnetic stirring, and
1h-3h is crosslinked at 80 DEG C -120 DEG C, suspension emulsion is formed, the mass ratio of the colloidal materials, water and crosslinking agent is 1：（10-
50）：（0.2-0.5）；
Step 3：Carried out during the clay particle of the Surface coating silane coupling agent layer is sent into high pressure homogenizer with suspension emulsion
Homogeneous, crosslinking, are then refined to nanoscale, form mixed liquor, and the high pressure homogenizer pressure is 10MPa-20MPa, and temperature is
80 DEG C -120 DEG C, the time is 20min-40min；
Step 4：The mixed liquor condensing crystallizing, spray drying are obtained into Liquid Fertilizer protomere suspending agent；
Wherein, the rotating speed of magnetic agitation is 800rpm/min -1200rpm/min.
9. preparation method according to claim 8, it is characterised in that：The organic solvent includes ethanol, methyl alcohol, isopropyl
The combination of one or more in alcohol, acetone, benzene, toluene and dimethylbenzene.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066644A (en) * | 2018-01-22 | 2019-07-30 | 中国石油化工股份有限公司 | A kind of stagnation of the circulation of vital energy plug extracting and cutting agent and preparation method |
| CN110066647A (en) * | 2018-01-22 | 2019-07-30 | 中国石油化工股份有限公司 | A kind of drilling well stagnation of the circulation of vital energy plug resistant to high temperatures and preparation method thereof |
-
2017
- 2017-03-21 CN CN201710168185.0A patent/CN106866260A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110066644A (en) * | 2018-01-22 | 2019-07-30 | 中国石油化工股份有限公司 | A kind of stagnation of the circulation of vital energy plug extracting and cutting agent and preparation method |
| CN110066647A (en) * | 2018-01-22 | 2019-07-30 | 中国石油化工股份有限公司 | A kind of drilling well stagnation of the circulation of vital energy plug resistant to high temperatures and preparation method thereof |
| CN110066647B (en) * | 2018-01-22 | 2021-08-31 | 中国石油化工股份有限公司 | High-temperature-resistant air-stagnation plug for well drilling and preparation method thereof |
| CN110066644B (en) * | 2018-01-22 | 2021-09-14 | 中国石油化工股份有限公司 | Extracting and cutting agent for qi stagnation and preparation method |
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