CN107512863A - A kind of solid defoaming agent and preparation method thereof of strength cement-based grouting material - Google Patents
A kind of solid defoaming agent and preparation method thereof of strength cement-based grouting material Download PDFInfo
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- CN107512863A CN107512863A CN201610422540.8A CN201610422540A CN107512863A CN 107512863 A CN107512863 A CN 107512863A CN 201610422540 A CN201610422540 A CN 201610422540A CN 107512863 A CN107512863 A CN 107512863A
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- defoamer
- grouting material
- strength cement
- based grouting
- particle
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/40—Compounds containing silicon, titanium or zirconium or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes
- C04B24/42—Organo-silicon compounds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1092—Coating or impregnating with pigments or dyes
- C04B20/1096—Coating or impregnating with pigments or dyes organic
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of solid defoaming agent of strength cement-based grouting material, the defoamer is made up of defoamer particle and the diaphragm being wrapped on defoamer particle, and the diaphragm is soluble polymeric films.Correspondingly, the preparation method the invention also discloses a kind of strength cement-based grouting material with solid defoaming agent.The present invention be directed to the defoamer that the alkaline resistance properties of the particular service requirement of strength cement-based grouting material making is excellent; diaphragm is wrapped up in solid particles surface; the release of the active ingredient of defoamer can effectively be delayed; extend the storage period of product; when in use; it can rapidly dissolve in aqueous phase, discharge active ingredient rapidly, play defoaming effect.
Description
Technical field
The present invention relates to chemical building material technical field, more particularly to a kind of strength cement-based grouting material solid defoaming agent and its system
Preparation Method.
Background technology
Strength cement-based grouting material is the premixing mortar being formulated by a certain percentage by aggregate, cement and additive, its quality
Stable, reliable in quality, it is mainly used in that equipment grouting is installed, plays and effectively transmit load action, be rapidly developed in recent years, be
One of building material product being widely popularized at present.
Containing a variety of addition compositions such as water reducer, swelling agent, early strength agent, water-loss reducers in strength cement-based grouting material composition, use
During the problems such as bubble is not easy to discharge inevitably be present, during mix, can also suck a certain amount of gas, if
These bubbles can not discharge in time, will result in mortar surface voids and pits, internal porosity increase, intensity declines, to material
Outward appearance and performance produce certain negative effect.Therefore, defoamer turns into important composition essential in strength cement-based grouting material
Partly.
The species of defoamer is various, typically based on liquid, in recent years, adapts to the needs of different purposes, solid defoaming agent
Also begin to continue to bring out.
1) Chinese patent of Patent No. 201210566546.4, its disclosed SOLID ORGANIC silicon defoaming agent is that had by a variety of
Machine silicon defoaming activity thing, emulsion adjuvant, surface modifier and carrier composition.Silicone active thing includes methyl-silicone oil, polyethers changes
Property silicone oil, dimethyl siloxane hydrolysate and white carbon, emulsion adjuvant is nonionic surfactant, takes alkylphenol-polyethenoxy
Ether, APEO, one or more compoundings in AEO, surface modifier are triethanolamine, n-octyl alcohol,
Carrier is sodium carbonate or sodium acid carbonate.The solid defoaming agent is widely used, and defoaming, suds suppressing properties effect are preferable, but it is organic
Silicon class defoamer, silicone content is higher, and using effect is poor under the higher strong alkaline condition of pH value.
2) Chinese patent of Patent No. 201110290327.3, it discloses a kind of particle defoaming agent and its preparation side
Method, estersil is mainly replaced using organic silicon emulsion, in substep agglomeration to carrier, form two estersil " aspect ", reduce one
The problem of secondary property agglomeration active matter skewness so that there are enough defoaming components defoamer extra-granular and inside, rise
To the effect slowly discharged.The particle defoaming agent has in mechanical cleaning, starch gelatinization, washing powder and cleaning industry preferably to disappear
Steep suds effect.
3) Chinese patent of Patent No. 201010614891.1, it discloses a kind of high-temperature resistant solid defoaming agent and its admittedly
Body defoamer and preparation method thereof, form as 1~25% part of organic silicon modified by polyether, 1~20 part of glycerin polyether, glyceride 1~
15 parts, 1~10 part of compound emulsifying agent, 1~100 part of complex inorganic salt catalyst.First active ingredient is premixed, then again with crushing simultaneously
The carrier complex inorganic salt catalyst mixed is mixed, and high-temperature resistant solid defoaming agent is made, and is further crushed and sieved.The production
Product transport, store, be easy to use.Weaving, printing and dyeing, chemical industry, coating, agricultural chemicals and medicine hot environment in should be extensive.
4) Chinese patent of Patent No. 201210436193.6, it discloses a kind of preparation method of solid defoaming agent,
From raw materials such as dimethicone, silica, sorbester p18, Tween 80, polyethylene glycol, paraffin.Its preparation technology is：First by it
Well mixed, then heat temperature raising, discharges after fusing and cools down, shaping is pressed into round stick solid.The product reduce packaging and
Cost of transportation；And can be mounted directly on pipeline, save production cost；Extend use and shelf-life, but itself and cement-based grout
The requirement of material is far apart.
The content of the invention
The present invention is intended to provide the solid defoaming agent product that a kind of strength cement-based grouting material is special, overcomes existing solid defoaming agent
Limitation, and the defects of strong basicity resisting and the not strong long-time stability of antidamping, work out suitable for cement concrete
Alkaline system.
Important composition part of the defoamer as cement-based grout feed additives, not only meets alkalescence in link is defoamed
It is relatively strong, and alkaline environment is also chronically in storage process, therefore in order to solve the above-mentioned technical problem, the present invention is from alkaline-resisting
Performance is strong, and antifoam performance is good under basic conditions, and the solid kind product that active ingredient decay is slower.The invention provides one
Kind strength cement-based grouting material solid defoaming agent, the defoamer is by defoamer particle and the diaphragm being wrapped on defoamer particle
Composition, the diaphragm is soluble polymeric films.Layer protecting film can wrap up a defoamer particle, can also wrap up
More defoamer particles.
Further, the diaphragm includes the raw material of following percentage by weight：Polyvinyl alcohol 60-80%, cellulose ether
15-35% and colouring agent 1-5%.
Further, the polyvinyl alcohol is the polyvinyl alcohol that the degree of polymerization is 500-1800, alcoholysis degree is 75-99；
The cellulose ether is hydroxymethylhydroxyethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl
The combination of any one or more in cellulose, hydroxyethylmethylcellulose；
The colouring agent is water-soluble organic mill base.
Further, the defoamer particle includes following raw material：Organic silicon modified by polyether active component 20-30
Part and carrier 70-80 parts, a diameter of 0.1-0.5mm of the defoamer particle.
Further, the raw material of the organic silicon modified by polyether active component includes reactant, catalyst, white carbon and breast
Agent,
The reactant is silicon oil of low hydrogen content and polyethers, and the mass ratio of the silicon oil of low hydrogen content and polyethers is 10-20:1；
The mass percent that the catalyst accounts for reactant is 0.1-0.3%；
The mass percent that the white carbon accounts for reactant is 2-5%；
The mass percent that the emulsifying agent accounts for reactant is 1-3%.
Further, the silicon oil of low hydrogen content is dimethicone, and the polyethers is that molecular weight is the polynary of 2000-3000
Alcohol polyoxyethylene poly-oxygen propylene aether；
The catalyst is trifluoroacetic acid or platinum；
The emulsifying agent is to carry out compound obtain by sorbitan fatty acid ester, polysorbate and APES
The compound emulsifying agent arrived；
The carrier is in carbonate, sulfate, phosphate, starch, diatomite, bentonite, attapulgite and talcum powder
One or more.
Correspondingly, the preparation method present invention also offers a kind of strength cement-based grouting material with solid defoaming agent, including it is following
Step：
S1, defoamer particle spread out and put on fluid bed, air blast is carried out by air-blast device, defoamer particle is blown to and turned over
Rolling state；
S2, liquid will be protected to be heated to 60-80 DEG C, and be sprayed to fluid bed, and make the protection liquid with being in tumbling state
Defoamer particle contacts, until the protection fully wrapped around defoamer particle of liquid；
S3, open heating system and continue air blast, until the protection liquid drying and forming-film, is made strength cement-based grouting material with admittedly
Body defoamer.
Further, the mass percent that the spray flux of protection liquid accounts for defoamer in the step S2 is 15-25%；
The temperature of heating system heats is the strength cement-based grouting material solid defoaming within 100 DEG C in the step S3
Agent is the defoamer described in any one in claim 1-6；
The water content of the defoamer is less than 3.5%.
Further, the preparation method of defoamer particle comprises the following steps in the step S1：
S11, silicon oil of low hydrogen content and polyethers are according to 10-20:1 mass ratio carries out polymerisation under catalyst action, system
Obtain polyether grafting silicone oil；
S12, white carbon is added in the polyether grafting silicone oil, and be stirred to obtain silica gel；
S13, emulsified using compound emulsifying agent, and carry out shear agitation and organic silicon modified by polyether active component is made；
S14, parts by weight are taken to enter for the organic silicon modified by polyether active component of 20-30 parts and the carrier of parts by weight 70-80 parts
Row is mixed and is granulated, and defoamer solid particle is made.
Further, the condition of polymerisation is in the step S11：3-6h is reacted at 100-200 DEG C；
The temperature of shear agitation is 60-80 DEG C in the step S13.
Strength cement-based grouting material solid defoaming agent and preparation method thereof of the present invention, has the advantages that：
1st, the present invention be directed to the excellent defoamer of alkaline resistance properties that the particular service requirement of strength cement-based grouting material makes,
Diaphragm is wrapped up in solid particles surface, can effectively delay the release of the active ingredient of defoamer, extends the storage period of product,
When in use, it can rapidly dissolve in aqueous phase, discharge active ingredient rapidly, play defoaming effect.
2nd, defoamer of the invention overcomes existing solid defoaming agent class bad adaptability, in storage process for a long time and cement bonded sand
The defects of material compound coexists, and active ingredient decay is very fast, the decay of defoaming effect is mostly derived from waving for defoamer effective ingredient
Hair, the defoamer solid being molded pass through polymer film layer parcel, cut off with the external world intercommunication, avoid effectively into
The volatilization of part, bin stability can be greatly improved.
3rd, in order to ensure that the covering of diaphragm is comprehensively uniform, and operating process is simplified, using fluidisation in the inventive method
Bed dryer, and whole process is successively completed in same equipment, using the inventive method is simple to operate, cost is relatively low, raw
Produce efficiency high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of strength cement-based grouting material solid defoaming agent of the present invention；
Fig. 2 is the flow chart of the preparation method of strength cement-based grouting material solid defoaming agent of the present invention.
In figure：1- defoamer particles, 2- diaphragms.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
Embodiment one：
As shown in figure 1, the invention provides a kind of solid defoaming agent of strength cement-based grouting material, the defoamer is by defoamer
Particle 1 and the diaphragm 2 being wrapped on defoamer particle 1 form, and the diaphragm 2 is soluble polymeric films, the guarantor
Cuticula 2 includes the raw material of following percentage by weight：Polyvinyl alcohol 60%, cellulose ether 35% and colouring agent 5%.
Wherein, the polyvinyl alcohol is PVA17-88；The cellulose ether is hydroxyethyl cellulose；The colouring agent is water
The organic mill base of dissolubility.
The defoamer particle 1 includes following raw material：20 parts of organic silicon modified by polyether active component and carrier 80
Part, a diameter of 0.1-0.2mm of the defoamer particle 1.
Wherein, the raw material of the organic silicon modified by polyether active component includes reactant, catalyst, white carbon and emulsification
Agent, the reactant are silicon oil of low hydrogen content and polyethers, and the silicon oil of low hydrogen content is dimethicone, and the polyethers is that molecular weight is
2000-2300 polyalcohol polyoxyethylene poly-oxygen propylene aether, the mass ratio of the silicon oil of low hydrogen content and polyethers is 10:1；It is described to urge
Agent is trifluoroacetic acid, and the mass percent for accounting for reactant is 0.1%；The mass percent that the white carbon accounts for reactant is
2%；The emulsifying agent carries out compound obtain by sorbitan fatty acid ester, polysorbate and APES
Compound emulsifying agent, and the mass percent for accounting for reactant is 1%, the carrier is carbonate.
Correspondingly, the preparation method present invention also offers a kind of strength cement-based grouting material with solid defoaming agent, including it is following
Step：
S1, the defoamer particle prepared spread out and put on fluid bed, air blast is carried out by air-blast device, by defoamer
Particle is blown to tumbling state；
Wherein, the preparation method of defoamer particle comprises the following steps：
S11, by dimethicone and polyethers according to 10:1 mass ratio is in the presence of catalyst trifluoroacetic acid through 100 DEG C
Lower reaction 6 hours, obtain polyethers and connect skill organosilicon polymer, the mass percent that the trifluoroacetic acid accounts for reactant is 0.1%；
S12, continue to 100 DEG C of high temperature, add account for water-white Tan of Shu that the mass percent of reactant is 2% , stirring 2
Hour, silica gel is made；
S13,60 degree are cooled to, compound emulsifying agent is added dropwise, 60 degree of maintenance reaction temperature, stirs 3 hours, obtains polyether-modified
Silicone active component；
S14, cancel 200 grams of infusion active constituent, 800 grams of carrier is sufficiently stirred kneading 30 minutes, passed through in a mixer
Comminutor, is made a diameter of 0.1-0.2mm particulate material, and carrier is carbonate.
S2,60 grams of PVAC polyvinylalcohol 17-88,35 grams of hydroxyethyl celluloses and 5 grams of organic mill bases of water solubility are dissolved in 80
In DEG C hot water, it is sufficiently stirred, is made into 5% protection liquid, spraying into temperature simultaneously by multiple nozzles above fluid bed bed body is
80 DEG C of protection liquor, spray rate 100g/min, protect liquid spray flux account for defoamer mass percent be 15%,
The protection liquid is set to be contacted with the defoamer particle in tumbling state, until the protection fully wrapped around defoamer particle of liquid；
After S3, spray, after Protection glue sticks particle surface, open heating system and cause fluid bed to be warming up to 80 degree,
And continue air blast, allow surface be stained with protection liquid defoamer little particle in thermal current fluidized drying, until it is described protection liquid do
Dry film forming, moisture content are less than 3.5%, and strength cement-based grouting material solid defoaming agent is made.
Embodiment two：
As shown in figure 1, the invention provides a kind of solid defoaming agent of strength cement-based grouting material, the defoamer is by defoamer
Particle 1 and the diaphragm 2 being wrapped on defoamer particle 1 form, and the diaphragm 2 is soluble polymeric films, the guarantor
Cuticula 2 includes the raw material of following percentage by weight：Polyvinyl alcohol 72%, cellulose ether 25% and colouring agent 3%.
Wherein, the polyvinyl alcohol is PVA17-92；The cellulose ether is hydroxymethylhydroxyethyl cellulose；The coloring
Agent is water-soluble organic mill base.
The defoamer particle 1 includes following raw material：25 parts of organic silicon modified by polyether active component and carrier 75
Part, a diameter of 0.2-0.4mm of the defoamer particle 1.
Wherein, the raw material of the organic silicon modified by polyether active component includes reactant, catalyst, white carbon and emulsification
Agent, the reactant are silicon oil of low hydrogen content and polyethers, and the silicon oil of low hydrogen content is dimethicone, and the polyethers is that molecular weight is
2300-2600 polyalcohol polyoxyethylene poly-oxygen propylene aether, the mass ratio of the silicon oil of low hydrogen content and polyethers is 15:1；It is described to urge
Agent is platinum, and the mass percent for accounting for reactant is 0.2%；The mass percent that the white carbon accounts for reactant is 4%；Institute
It is to carry out compound obtained Composite Milk by sorbitan fatty acid ester, polysorbate and APES to state emulsifying agent
Agent, and the mass percent for accounting for reactant is 2%, the carrier is phosphate and diatomaceous mixture.
Correspondingly, the preparation method present invention also offers a kind of strength cement-based grouting material with solid defoaming agent, including it is following
Step：
S1, the defoamer particle prepared spread out and put on fluid bed, air blast is carried out by air-blast device, by defoamer
Particle is blown to tumbling state；
Wherein, the preparation method of defoamer particle comprises the following steps：
S11, by dimethicone and polyethers according to 15:1 mass ratio in the presence of catalyst platinum through 150 DEG C at react
4 hours, obtain polyethers and connect skill organosilicon polymer, the mass percent that the catalyst platinum accounts for reactant is 0.2%；
S12, continue to 150 DEG C of high temperature, add account for water-white Tan of Shu that the mass percent of reactant is 4% , stirring
2.5 hours, silica gel is made；
S13,70 degree are cooled to, compound emulsifying agent is added dropwise, 70 degree of maintenance reaction temperature, stirs 2.5 hours, obtains polyethers and change
Property silicone active component；
S14, cancel 250 grams of infusion active constituent, 750 grams of carrier is sufficiently stirred kneading 40 minutes, passed through in a mixer
Comminutor, is made a diameter of 0.2-0.4mm particulate material, and carrier is phosphate and diatomaceous mixture.
It is S2,72 grams of PVAC polyvinylalcohol 17-92,25 grams of hydroxymethylhydroxyethyl celluloses and 3 grams of organic mill bases of water solubility are molten
Solution is sufficiently stirred in 70 DEG C of hot water, is made into 4.5% protection liquid, is sprayed simultaneously by multiple nozzles above fluid bed bed body
Enter the protection liquor that temperature is 70 DEG C, spray rate 200g/min, protect the spray flux of liquid to account for the quality percentage of defoamer
Than for 20%, making the protection liquid be contacted with the defoamer particle in tumbling state, until protecting the fully wrapped around defoamer of liquid
Particle；
After S3, spray, after Protection glue sticks particle surface, open heating system and cause fluid bed to be warming up to 90 degree,
And continue air blast, allow surface be stained with protection liquid defoamer little particle in thermal current fluidized drying, until it is described protection liquid do
Dry film forming, moisture content are less than 1%, and strength cement-based grouting material solid defoaming agent is made.
Embodiment three：
As shown in figure 1, the invention provides a kind of solid defoaming agent of strength cement-based grouting material, the defoamer is by defoamer
Particle 1 and the diaphragm 2 being wrapped on defoamer particle 1 form, and the diaphragm 2 is soluble polymeric films, the guarantor
Cuticula 2 includes the raw material of following percentage by weight：Polyvinyl alcohol 80%, cellulose ether 19% and colouring agent 1%.
Wherein, the polyvinyl alcohol is PVA17-99；The cellulose ether is hydroxypropyl methyl cellulose and ethoxy first
The mixture of base fiber；The colouring agent is water-soluble organic mill base.
The defoamer particle 1 includes following raw material：30 parts of organic silicon modified by polyether active component and carrier 70
Part, a diameter of 0.4-0.5mm of the defoamer particle 1.
Wherein, the raw material of the organic silicon modified by polyether active component includes reactant, catalyst, white carbon and emulsification
Agent, the reactant are silicon oil of low hydrogen content and polyethers, and the silicon oil of low hydrogen content is dimethicone, and the polyethers is that molecular weight is
2600-3000 polyalcohol polyoxyethylene poly-oxygen propylene aether, the mass ratio of the silicon oil of low hydrogen content and polyethers is 20:1；It is described to urge
Agent is platinum, and the mass percent for accounting for reactant is 0.3%；The mass percent that the white carbon accounts for reactant is 5%；Institute
It is to carry out compound obtained Composite Milk by sorbitan fatty acid ester, polysorbate and APES to state emulsifying agent
Agent, and the mass percent for accounting for reactant is 3%, the carrier is phosphate and diatomaceous mixture.
Correspondingly, the preparation method present invention also offers a kind of strength cement-based grouting material with solid defoaming agent, including it is following
Step：
S1, the defoamer particle prepared spread out and put on fluid bed, air blast is carried out by air-blast device, by defoamer
Particle is blown to tumbling state；
Wherein, the preparation method of defoamer particle comprises the following steps：
S11, by dimethicone and polyethers according to 20:1 mass ratio in the presence of catalyst platinum through 200 DEG C at react
3 hours, obtain polyethers and connect skill organosilicon polymer, the mass percent that the catalyst platinum accounts for reactant is 0.3%；
S12, continue to 200 DEG C of high temperature, add account for water-white Tan of Shu that the mass percent of reactant is 5% , stirring 3
Hour, silica gel is made；
S13,80 degree are cooled to, compound emulsifying agent is added dropwise, 80 degree of maintenance reaction temperature, stirs 2 hours, obtains polyether-modified
Silicone active component；
S14, cancel 300 grams of infusion active constituent, 700 grams of carrier is sufficiently stirred kneading 35 minutes, passed through in a mixer
Comminutor, is made a diameter of 0.4-0.5mm particulate material, and carrier is phosphate and diatomaceous mixture.
S2, by 80 grams of PVAC polyvinylalcohol 17-99, the mixing of 19 grams of hydroxypropyl methyl celluloses and hydroxyethyl methyl fiber
Thing and 1 gram of organic mill base of water solubility are dissolved in 75 DEG C of hot water, are sufficiently stirred, are made into 4% protection liquid, pass through fluidized bed
Multiple nozzles above body spray into the protection liquor that temperature is 75 DEG C simultaneously, spray rate 300g/min, protect the spray of liquid
The mass percent that leaching amount accounts for defoamer is 25%, the protection liquid is contacted with the defoamer particle in tumbling state, directly
To the protection fully wrapped around defoamer particle of liquid；
After S3, spray, after Protection glue sticks particle surface, open heating system and cause fluid bed to be warming up to 70 degree,
And continue air blast, allow surface be stained with protection liquid defoamer little particle in thermal current fluidized drying, until it is described protection liquid do
Dry film forming, moisture content are less than 2.5%, and strength cement-based grouting material solid defoaming agent is made.
Strength cement-based grouting material solid defoaming agent and preparation method thereof of the present invention, has the advantages that：
1st, the present invention be directed to the excellent defoamer of alkaline resistance properties that the particular service requirement of strength cement-based grouting material makes,
Diaphragm is wrapped up in solid particles surface, can effectively delay the release of the active ingredient of defoamer, extends the storage period of product,
When in use, it can rapidly dissolve in aqueous phase, discharge active ingredient rapidly, play defoaming effect.
2nd, defoamer of the invention overcomes existing solid defoaming agent class bad adaptability, in storage process for a long time and cement bonded sand
The defects of material compound coexists, and active ingredient decay is very fast, the decay of defoaming effect is mostly derived from waving for defoamer effective ingredient
Hair, the defoamer solid being molded pass through polymer film layer parcel, cut off with the external world intercommunication, avoid effectively into
The volatilization of part, bin stability can be greatly improved.
3rd, in order to ensure that the covering of diaphragm is comprehensively uniform, and operating process is simplified, using fluidisation in the inventive method
Bed dryer, and whole process is successively completed in same equipment, using the inventive method is simple to operate, cost is relatively low, raw
Produce efficiency high.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of strength cement-based grouting material solid defoaming agent, it is characterised in that the defoamer is by defoamer particle and is wrapped in
Diaphragm composition on defoamer particle, the diaphragm is soluble polymeric films.
2. strength cement-based grouting material according to claim 1 solid defoaming agent, it is characterised in that the diaphragm include with
The raw material of lower percentage by weight：Polyvinyl alcohol 60-80%, cellulose ether 15-35% and colouring agent 1-5%.
3. strength cement-based grouting material according to claim 2 solid defoaming agent, it is characterised in that the polyvinyl alcohol is poly-
It is right be 500-1800, the polyvinyl alcohol that alcoholysis degree is 75-99；
The cellulose ether is hydroxymethylhydroxyethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl fiber
The combination of any one or more in element, hydroxyethylmethylcellulose；
The colouring agent is water-soluble organic mill base.
4. the strength cement-based grouting material solid defoaming agent according to claim 1-3 any one, it is characterised in that described to disappear
Infusion particle includes following raw material：Organic silicon modified by polyether active component 20-30 parts and carrier 70-80 parts are described to disappear
A diameter of 0.1-0.5mm of infusion particle.
5. strength cement-based grouting material according to claim 4 solid defoaming agent, it is characterised in that described polyether-modified organic
The raw material of silicon active component includes reactant, catalyst, white carbon and emulsifying agent,
The reactant is silicon oil of low hydrogen content and polyethers, and the mass ratio of the silicon oil of low hydrogen content and polyethers is 10-20:1；
The mass percent that the catalyst accounts for reactant is 0.1-0.3%；
The mass percent that the white carbon accounts for reactant is 2-5%；
The mass percent that the emulsifying agent accounts for reactant is 1-3%.
6. strength cement-based grouting material according to claim 5 solid defoaming agent, it is characterised in that the silicon oil of low hydrogen content is
Dimethicone, the polyethers are the polyalcohol polyoxyethylene poly-oxygen propylene aether that molecular weight is 2000-3000；
The catalyst is trifluoroacetic acid or platinum；
The emulsifying agent carries out compound obtain by sorbitan fatty acid ester, polysorbate and APES
Compound emulsifying agent；
The carrier is one in carbonate, sulfate, phosphate, starch, diatomite, bentonite, attapulgite and talcum powder
Kind is a variety of.
7. a kind of strength cement-based grouting material preparation method of solid defoaming agent, it is characterised in that comprise the following steps：
S1, defoamer particle spread out and put on fluid bed, air blast is carried out by air-blast device, defoamer particle is blown to rolling shape
State；
S2, liquid will be protected to be heated to 60-80 DEG C, and be sprayed to fluid bed, make the protection liquid and the defoaming in tumbling state
Agent particle contacts, until the protection fully wrapped around defoamer particle of liquid；
S3, open heating system and continue air blast, until the protection liquid drying and forming-film, is made strength cement-based grouting material and is disappeared with solid
Infusion.
8. the strength cement-based grouting material according to claim 7 preparation method of solid defoaming agent, it is characterised in that the step
The mass percent that the spray flux of protection liquid accounts for defoamer in rapid S2 is 15-25%；
The temperature of heating system heats is that the strength cement-based grouting material is within 100 DEG C with solid defoaming agent in the step S3
Defoamer in claim 1-6 described in any one；
The water content of the defoamer is less than 3.5%.
9. the strength cement-based grouting material according to claim 8 preparation method of solid defoaming agent, it is characterised in that the step
The preparation method of defoamer particle comprises the following steps in rapid S1：
S11, silicon oil of low hydrogen content and polyethers are according to 10-20:1 mass ratio carries out polymerisation under catalyst action, is made poly-
Ether is grafted silicone oil；
S12, white carbon is added in the polyether grafting silicone oil, and be stirred to obtain silica gel；
S13, emulsified using compound emulsifying agent, and carry out shear agitation and organic silicon modified by polyether active component is made；
S14, parts by weight are taken to be mixed for the organic silicon modified by polyether active component of 20-30 parts and the carrier of parts by weight 70-80 parts
Merge and be granulated, defoamer solid particle is made.
10. the strength cement-based grouting material according to claim 9 preparation method of solid defoaming agent, it is characterised in that described
The condition of polymerisation is in step S11：3-6h is reacted at 100-200 DEG C；
The temperature of shear agitation is 60-80 DEG C in the step S13.
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