CN111848217A - Preparation method of image cement product - Google Patents
Preparation method of image cement product Download PDFInfo
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- CN111848217A CN111848217A CN202010738004.5A CN202010738004A CN111848217A CN 111848217 A CN111848217 A CN 111848217A CN 202010738004 A CN202010738004 A CN 202010738004A CN 111848217 A CN111848217 A CN 111848217A
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- Prior art keywords
- cement
- reducing
- shrinkage
- viscosity
- printing medium
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- 239000004568 cement Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 238000007639 printing Methods 0.000 claims abstract description 36
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 30
- 239000008367 deionised water Substances 0.000 claims description 22
- 229910021641 deionized water Inorganic materials 0.000 claims description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 20
- 239000000654 additive Substances 0.000 claims description 18
- 230000000996 additive effect Effects 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 17
- 239000002202 Polyethylene glycol Substances 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 15
- 229920001223 polyethylene glycol Polymers 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000011083 cement mortar Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 10
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 10
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 10
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- AMVQGJHFDJVOOB-UHFFFAOYSA-H aluminium sulfate octadecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O AMVQGJHFDJVOOB-UHFFFAOYSA-H 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000012452 mother liquor Substances 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 5
- 238000005886 esterification reaction Methods 0.000 claims description 5
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 238000010526 radical polymerization reaction Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 10
- 238000004090 dissolution Methods 0.000 description 6
- 239000000376 reactant Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 239000001055 blue pigment Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000001052 yellow pigment Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- -1 polyoxyethylene group Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5016—Acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of an image cement product, which comprises the following steps: processing the picture to be imaged by using image software to obtain a pattern style; outputting the ink to a printing medium according to a pattern by using a printer; placing the printing medium printed with the pattern in a dry environment, drying the surface of the printing medium, and fixing the printing medium in a forming mould of a cement product with the pattern printed upwards; adjusting the temperature and the humidity of the environment, pouring a cement mixture on one side of the mold with the printed pattern, curing for a certain time, and then removing the mold and the printing medium. Aiming at the defects in the prior art, the invention provides the preparation method of the image cement product with good imaging effect and high success rate.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a preparation method of an image cement product.
Background
Concrete is a general term for engineering composite materials in which aggregate is cemented into a whole by a cementing material. The term concrete generally refers to cement concrete which is obtained by mixing cement as a cementing material, sand and stone as aggregates, water and an additive according to a certain proportion and stirring, and is also called ordinary concrete, and is generally used in the field of building engineering. However, with the progress of modern society and the improvement of people's living standard, people have not only satisfied their practicability but also have artistic quality, which is reflected in the field of building industry, that is, higher requirements are put forward for the decoration of building facades and the beautification of environment, and image cement products are also appeared on the market, and the image cement products form images on the surface of cement mixtures by using the plasticity and the solidification characteristics of the cement mixtures through media such as molds, imaging films and the like.
However, the thickness of the image cement product on the market is generally much smaller than the length and the width of the image cement product, so that the surface of the image cement product is easy to crack, and particularly, the strength of the image cement product is developed at a higher speed and is easy to crack at the position where the image cement product has the function of an early strength agent, so that the final imaging effect of the image cement product is influenced. Meanwhile, in order to ensure the convenience of preparing the image cement product and the integrity of an imaging picture, a cement mixture with a large fluidity is often prepared to prepare the image cement product, so that the functional agent on the surface of the printing medium is washed to other positions, and the final imaging effect of the image cement product is also influenced.
Disclosure of Invention
The invention aims to provide a preparation method of an image cement product with good imaging effect and high success rate aiming at the defects in the prior art.
In order to achieve the purpose, the technical scheme is as follows:
a method of making an imaged cementitious article comprising the steps of:
1) processing the picture to be imaged by using image software to obtain a pattern style;
2) outputting the ink to a printing medium according to a pattern by using a printer;
3) placing the printing medium with the printed pattern in a dry environment, drying the surface of the printing medium, and fixing the printing medium in a forming mould of an image cement product, wherein the side printed with the pattern is upward;
4) adjusting the temperature and the humidity of the environment, pouring a cement mixture on one side of the mold with the printed pattern, curing for a certain time, and then removing the mold and the printing medium.
According to the scheme, the ink consists of 35 wt% of pigment, 10 wt% of shrinkage-reducing and viscosity-increasing type early strength agent and deionized water; the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following components in parts by weight:
5-10 parts of aluminum sulfate, 3-5 parts of diethanolamine, 4-7 parts of citric acid, 0.5-1 part of phosphoric acid, 6-8 parts of a shrinkage and viscosity increasing component and 75-85 parts of deionized water; wherein, the structural formula of the shrinkage-reducing and viscosity-increasing component is as follows:
wherein m is a natural number of 360 to 1360; n is a natural number of 50 to 100; x is a natural number of 15-40; y is a natural number of 30 to 80; z is a natural number of 300 to 1200; r is-CH 3 or-C2H 5.
According to the scheme, the shrinkage-reducing and viscosity-increasing component is prepared in the following way:
1) acrylic acid and polyethylene glycol ether are used to generate an intermediate polyethylene glycol ether acrylate through esterification reaction under the combined action of p-toluenesulfonic acid and hydroquinone;
2) carrying out free radical polymerization reaction on the intermediate polyethylene glycol ether acrylate, methacrylate, acrylamide and methacrylamide under the action of ammonium persulfate;
3) and (4) dropwise adding a sodium hydroxide aqueous solution for neutralization to obtain the shrinkage-reducing and viscosity-increasing component.
According to the scheme, the shrinkage-reducing and viscosity-increasing type early strength agent is prepared in the following mode:
heating deionized water to 70-85 ℃, adding aluminum sulfate octadecahydrate, stirring and dissolving completely; cooling to below 55 deg.C, adding shrinkage reducing and viscosity increasing components, stirring, and mixing; adding diethanolamine and citric acid, stirring, dissolving and mixing uniformly; adding phosphoric acid to adjust the pH value to 5-6 to obtain the shrinkage-reducing and viscosity-increasing type early strength agent.
According to the scheme, the forming mold is a plastic mold, a glass mold, a wood mold, a steel mold, an aluminum mold or a foam mold, and preferably a foam mold.
According to the scheme, the printing medium is one of waterproof PP paper, weak solvent PP paper, PVC paper, waterproof non-woven fabric and photographic paper; waterproof PP paper is preferred.
According to the scheme, the surface drying time in the step 3 is 6-8 hours.
According to the scheme, the environmental temperature is adjusted to be 25-27 ℃ in the step 4; the relative humidity is 70-90%.
According to the scheme, the cement mixture in the step 4 is cement paste, cement mortar or concrete; cement mortar is preferred.
According to the scheme, the cement mortar comprises cement, river sand, an additive and water, and the mass ratio of the cement mortar is as follows: river sand: water: the additive is 2000:1000, (590-610) and 40;
the cement is ordinary portland cement P.O425; the fineness modulus of the river sand is 0.8; the additive is obtained by compounding water-reducing additive mother liquor, slump-retaining additive mother liquor and deionized water, wherein the water-reducing additive mother liquor is as follows: slump-retaining additive mother liquor: deionized water 7:3: 40.
According to the scheme, the time for removing the mold and the printing medium in the step 4 is 10-16 hours after pouring.
Compared with the prior art, the invention has the beneficial effects that:
(1) the ink used in the invention is added with the shrinkage-reducing and viscosity-increasing type early strength agent, wherein the polyoxyethylene group of the shrinkage-reducing and viscosity-increasing component forms a strong hydrogen bond with water molecules through an ether bond, and the water molecules are firmly adsorbed on the molecules of the ink, so that on one hand, the reaction of the early strength agent and cement clinker can be ensured to be more thorough, the final imaging chromatic aberration of an image cement product is larger, and the imaging effect is more obvious; on the other hand, the method can prevent the volatilization of water, reduce the shrinkage of the cement product with the image, and avoid the occurrence of cracks to influence the final imaging effect.
(2) The ink used in the invention is added with the shrinkage-reducing and viscosity-increasing type early strength agent, wherein the polyacrylamide group of the shrinkage-reducing and viscosity-increasing component has the bridging effect and the charge effect of an anionic group, and the particle effect and the surface activity effect of the shrinkage-reducing and viscosity-increasing type early strength agent can increase the viscosity of the shrinkage-reducing and viscosity-increasing type early strength agent solution, thereby improving the adhesive force of the shrinkage-reducing and viscosity-increasing type early strength agent on the surface of a pigment molecule, and avoiding the shrinkage-reducing and viscosity-increasing type early strength agent from being randomly distributed on the surface of a printing medium to influence the final imaging effect of an.
Detailed Description
In order to better understand the present invention, the following examples are further described, but the present invention is not limited to the scope of the examples.
Example 1
The preparation of the shrinkage-reducing and viscosity-increasing component comprises the following steps:
(1) mixing 3mol of acrylic acid, 1mol of polyethylene glycol ether, 0.012mol of hydroquinone and 0.04mol of p-toluenesulfonic acid, stirring and heating to 95 ℃, carrying out esterification reaction for 3 hours, and carrying out reduced pressure distillation to obtain polyethylene glycol ether acrylate;
(2) introduction of N2Flushing a four-neck flask, adding 300g of deionized water, 12mol of acrylamide and 10mol of methacrylamide, stirring for dissolving, gradually heating to 80 ℃, stirring at constant temperature for 8min, respectively dropwise adding 1mol of methacrylate, 0.5mol of polyethylene glycol ether acrylate obtained in the step (1) and 0.09mol of ammonium persulfate aqueous solution for 2h, reacting at constant temperature for 3h after the dropwise addition is finished, and cooling the reactant to terminate the reaction;
(3) and dropwise adding a sodium hydroxide aqueous solution into the reactant while stirring, carrying out neutralization reaction, and adjusting the pH value of the solution to 7 to obtain the required shrinkage-reducing and viscosity-increasing component.
Example 2
The preparation of the shrinkage-reducing and viscosity-increasing component comprises the following steps:
(1) mixing 3mol of acrylic acid, 1mol of polyethylene glycol ether, 0.012mol of hydroquinone and 0.04mol of p-toluenesulfonic acid, stirring and heating to 95 ℃, carrying out esterification reaction for 3 hours, and carrying out reduced pressure distillation to obtain polyethylene glycol ether acrylate;
(2) introduction of N2Flushing a four-neck flask, adding 300g of deionized water, 12mol of acrylamide and 10mol of methacrylamide, stirring for dissolving, slowly heating to 80 ℃, stirring at constant temperature for 8min, respectively and slowly dropwise adding 1mol of methacrylate, 1mol of polyethylene glycol ether acrylate obtained in the step (1) and 0.12mol of ammonium persulfate aqueous solution for 2h, reacting at constant temperature for 3h after dropwise addition is finished, and cooling reactants to terminate the reaction;
(3) and dropwise adding a sodium hydroxide aqueous solution into the reactant while stirring, carrying out neutralization reaction, and adjusting the pH value of the solution to 7 to obtain the required shrinkage-reducing and viscosity-increasing component.
Example 3
The preparation of the shrinkage-reducing and viscosity-increasing component comprises the following steps:
(1) mixing 3mol of acrylic acid, 1mol of polyethylene glycol ether, 0.012mol of hydroquinone and 0.04mol of p-toluenesulfonic acid, stirring and heating to 95 ℃, carrying out esterification reaction for 3 hours, and carrying out reduced pressure distillation to obtain polyethylene glycol ether acrylate;
(2) introduction of N2Flushing a four-neck flask, adding 300g of deionized water, 17mol of acrylamide and 10mol of methacrylamide, stirring for dissolving, slowly heating to 80 ℃, stirring at constant temperature for 8min, respectively and slowly dropwise adding 1mol of methacrylate, 0.5mol of polyethylene glycol ether acrylate obtained in the step (1) and 0.09mol of ammonium persulfate aqueous solution for 2h, reacting at constant temperature for 3h after dropwise addition is finished, and cooling reactants to terminate the reaction;
(3) and dropwise adding a sodium hydroxide aqueous solution into the reactant while stirring, carrying out neutralization reaction, and adjusting the pH value of the solution to 7 to obtain the required shrinkage-reducing and viscosity-increasing component.
Example 4
The preparation method of the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following steps:
(1) stirring and heating 75 parts of deionized water, and adding 5 parts of aluminum sulfate octadecahydrate after the temperature is raised to 75 ℃ for complete dissolution;
(2) cooling to 55 ℃, adding 6 parts of the shrinkage-reducing and viscosity-increasing component obtained in example 1, and uniformly stirring;
(3) adding 3 parts of diethanolamine and 4 parts of citric acid, stirring for dissolving, and uniformly mixing;
(4) adding 1 part of phosphoric acid, and adjusting the pH value of the solution to 6 to obtain the shrinkage-reducing and viscosity-increasing early strength agent.
Example 5
The preparation method of the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following steps:
(1) stirring and heating 75 parts of deionized water, and adding 10 parts of aluminum sulfate octadecahydrate after the temperature is raised to 75 ℃ for complete dissolution;
(2) cooling to 55 ℃, adding 6 parts of the shrinkage-reducing and viscosity-increasing component obtained in example 1, and uniformly stirring;
(3) adding 3 parts of diethanolamine and 4 parts of citric acid, stirring for dissolving, and uniformly mixing;
(4) adding 1 part of phosphoric acid, and adjusting the pH value of the solution to 6 to obtain the shrinkage-reducing and viscosity-increasing early strength agent.
Example 6
The preparation method of the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following steps:
(1) stirring and heating 75 parts of deionized water, and adding 5 parts of aluminum sulfate octadecahydrate after the temperature is raised to 75 ℃ for complete dissolution;
(2) cooling to 55 ℃, adding 6 parts of the shrinkage-reducing and viscosity-increasing component obtained in example 2, and uniformly stirring;
(3) adding 3 parts of diethanolamine and 4 parts of citric acid, stirring for dissolving, and uniformly mixing;
(4) adding 1 part of phosphoric acid, and adjusting the pH value of the solution to 6 to obtain the shrinkage-reducing and viscosity-increasing early strength agent.
Example 7
The preparation method of the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following steps:
(1) stirring and heating 75 parts of deionized water, and adding 10 parts of aluminum sulfate octadecahydrate after the temperature is raised to 75 ℃ for complete dissolution;
(2) cooling to 55 ℃, adding 6 parts of the shrinkage-reducing and viscosity-increasing component obtained in example 2, and uniformly stirring;
(3) adding 3 parts of diethanolamine and 4 parts of citric acid, stirring for dissolving, and uniformly mixing;
(4) adding 1 part of phosphoric acid, and adjusting the pH value of the solution to 6 to obtain the shrinkage-reducing and viscosity-increasing early strength agent.
Example 8
The preparation method of the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following steps:
(1) stirring and heating 75 parts of deionized water, and adding 5 parts of aluminum sulfate octadecahydrate after the temperature is raised to 75 ℃ for complete dissolution;
(2) cooling to 55 ℃, adding 6 parts of the shrinkage-reducing and viscosity-increasing component obtained in example 3, and uniformly stirring;
(3) adding 3 parts of diethanolamine and 4 parts of citric acid, stirring for dissolving, and uniformly mixing;
(4) adding 1 part of phosphoric acid, and adjusting the pH value of the solution to 6 to obtain the shrinkage-reducing and viscosity-increasing early strength agent.
Example 9
The preparation method of the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following steps:
(1) stirring and heating 75 parts of deionized water, and adding 10 parts of aluminum sulfate octadecahydrate after the temperature is raised to 75 ℃ for complete dissolution;
(2) cooling to 55 ℃, adding 6 parts of the shrinkage-reducing and viscosity-increasing component obtained in example 3, and uniformly stirring;
(3) adding 3 parts of diethanolamine and 4 parts of citric acid, stirring for dissolving, and uniformly mixing;
(4) adding 1 part of phosphoric acid, and adjusting the pH value of the solution to 6 to obtain the shrinkage-reducing and viscosity-increasing early strength agent.
Example 10
A method of making an imaged cementitious article comprising the steps of:
manufacturing a forming die: according to the length and width requirements of the cement product to be imaged, the foam board is cut into corresponding sizes, the periphery of the foam board is turned upwards, the foam board is fixed by transparent adhesive tapes, and the smooth surface of the foam board faces upwards.
Preparing ink: respectively adding 50g of the shrinkage-reducing and viscosity-increasing type early strength agent obtained in example 4 and 275g of deionized water into 175g of black pigment, 175g of yellow pigment, 175g of red pigment and 175g of blue pigment, uniformly mixing and stirring, and centrifugally separating impurities for later use.
Picture processing: adjusting the length and width of the required imaging picture by using image software according to the size requirement of the required imaging cement product; according to the content of the required imaging picture, the processing of image decoloration, picture resolution adjustment, picture contrast adjustment and horizontal canvas turning is carried out.
Pattern output: and (3) outputting the special ink to the waterproof PP printing paper according to the adjusted pattern style by utilizing a digital code-spraying printing technology of a printer, drying the surface of the special ink in the dry environment for 6 hours, and fixing the special ink in a special mold, wherein one side printed with the pattern faces upwards.
Adjusting the ambient temperature to 25 ℃; and pouring cement mortar into the special mold fixed with the waterproof PP printing paper with the pattern after the relative humidity is 70%, and removing the mold and tearing off the waterproof PP printing paper with the pattern after 12h pouring to obtain the image cement product, wherein the cement mortar comprises the following components of ordinary portland cement P.O4252000g, 1000g of river sand with the fineness modulus of 0.8, 40g of special additive and 590g of water.
Example 11
A method of making an imaged cementitious article comprising the steps of:
manufacturing a forming die: according to the length and width requirements of the cement product to be imaged, the foam board is cut into corresponding sizes, the periphery of the foam board is turned upwards, the foam board is fixed by transparent adhesive tapes, and the smooth surface of the foam board faces upwards.
Preparing ink: respectively adding 50g of the shrinkage-reducing and viscosity-increasing type early strength agent obtained in example 5 and 275g of deionized water into 175g of black pigment, 175g of yellow pigment, 175g of red pigment and 175g of blue pigment, uniformly mixing and stirring, and centrifugally separating impurities for later use.
Picture processing: adjusting the length and width of the required imaging picture by using image software according to the size requirement of the required imaging cement product; according to the content of the required imaging picture, the processing of image decoloration, picture resolution adjustment, picture contrast adjustment and horizontal canvas turning is carried out.
Pattern output: and (3) outputting the special printing ink to the waterproof PP printing paper according to the adjusted pattern style by utilizing a digital code-spraying printing technology of a professional printer, drying the surface of the special printing ink in a dry environment for 6 hours, and fixing the special printing ink in a special mould, wherein one side printed with the pattern faces upwards.
Adjusting the ambient temperature to 25 ℃; and pouring cement mortar into the special mold fixed with the waterproof PP printing paper with the pattern after the relative humidity is 70%, and removing the mold and tearing off the waterproof PP printing paper with the pattern after 12h pouring to obtain the image cement product, wherein the cement mortar comprises the following components of ordinary portland cement P.O4252000g, 1000g of river sand with the fineness modulus of 0.8, 40g of special additive and 590g of water.
Example 12
A method of making an imaged cementitious article comprising the steps of:
manufacturing a forming die: according to the length and width requirements of the cement product to be imaged, the foam board is cut into corresponding sizes, the periphery of the foam board is turned upwards, the foam board is fixed by transparent adhesive tapes, and the smooth surface of the foam board faces upwards.
Preparing ink: respectively adding 50g of the shrinkage-reducing and viscosity-increasing type early strength agent obtained in example 6 and 275g of deionized water into 175g of black pigment, 175g of yellow pigment, 175g of red pigment and 175g of blue pigment, uniformly mixing and stirring, and centrifugally separating impurities for later use.
Picture processing: adjusting the length and width of the required imaging picture by using professional image software according to the size requirement of the required imaging cement product; according to the content of the required imaging picture, the processing of image decoloration, picture resolution adjustment, picture contrast adjustment and horizontal canvas turning is carried out.
Pattern output: and (3) outputting the special ink to the waterproof PP printing paper according to the adjusted pattern style by utilizing a digital code-spraying printing technology of a printer, drying the surface of the special ink in the dry environment for 6 hours, and fixing the special ink in a special mold, wherein one side printed with the pattern faces upwards.
Adjusting the ambient temperature to 25 ℃; and pouring cement mortar into the special mold fixed with the waterproof PP printing paper with the pattern after the relative humidity is 70%, and removing the mold and tearing off the waterproof PP printing paper with the pattern after 12h pouring to obtain the image cement product, wherein the cement mortar comprises the following components of ordinary portland cement P.O4252000g, 1000g of river sand with the fineness modulus of 0.8, 40g of special additive and 590g of water.
The above embodiments are merely examples for clearly illustrating the present invention and do not limit the present invention. Other variants and modifications of the invention, which are obvious to those skilled in the art and can be made on the basis of the above description, are not necessary or exhaustive for all embodiments, and are therefore within the scope of the invention.
Claims (10)
1. A method for preparing an image cement product is characterized by comprising the following steps:
1) processing the picture to be imaged by using image software to obtain a pattern style;
2) outputting the ink to a printing medium according to a pattern by using a printer;
3) placing the printing medium with the printed pattern in a dry environment, drying the surface of the printing medium, and fixing the printing medium in a forming mould of an image cement product, wherein the side printed with the pattern is upward;
4) adjusting the temperature and the humidity of the environment, pouring a cement mixture on one side of the mold with the printed pattern, curing for a certain time, and then removing the mold and the printing medium.
2. The method for preparing cement products with images as claimed in claim 1, wherein the ink is composed of 35 wt% of pigment, 10 wt% of shrinkage-reducing and adhesion-increasing type early strength agent and deionized water; the shrinkage-reducing and viscosity-increasing type early strength agent comprises the following components in parts by weight:
5-10 parts of aluminum sulfate, 3-5 parts of diethanolamine, 4-7 parts of citric acid, 0.5-1 part of phosphoric acid, 6-8 parts of a shrinkage and viscosity increasing component and 75-85 parts of deionized water; wherein, the structural formula of the shrinkage-reducing and viscosity-increasing component is as follows:
wherein m is a natural number of 360 to 1360; n is a natural number of 50 to 100; x is a natural number of 15-40; y is a natural number of 30 to 80; z is a natural number of 300 to 1200; r is-CH3or-C2H5。
3. A method of making an imaged cementitious product as claimed in claim 2 wherein said shrinkage-reducing and viscosity-increasing component is made by:
1) acrylic acid and polyethylene glycol ether are used to generate an intermediate polyethylene glycol ether acrylate through esterification reaction under the combined action of p-toluenesulfonic acid and hydroquinone;
2) carrying out free radical polymerization reaction on the intermediate polyethylene glycol ether acrylate, methacrylate, acrylamide and methacrylamide under the action of ammonium persulfate;
3) and (4) dropwise adding a sodium hydroxide aqueous solution for neutralization to obtain the shrinkage-reducing and viscosity-increasing component.
4. A method of producing an imaged cementitious product as claimed in claim 2 wherein the shrinkage-reducing adhesion-promoting early strength agent is produced by:
heating deionized water to 70-85 ℃, adding aluminum sulfate octadecahydrate, stirring and dissolving completely; cooling to below 55 deg.C, adding shrinkage reducing and viscosity increasing components, stirring, and mixing; adding diethanolamine and citric acid, stirring, dissolving and mixing uniformly; adding phosphoric acid to adjust the pH value to 5-6 to obtain the shrinkage-reducing and viscosity-increasing type early strength agent.
5. The method of claim 1, wherein the printing medium is one of waterproof PP paper, weak solvent PP paper, PVC paper, waterproof nonwoven fabric, and photo paper.
6. The method for preparing an image cement product as claimed in claim 1, wherein the surface drying time in step 3 is 6-8 h.
7. The method for producing a cement product having an image according to claim 1, wherein in the step 4, the ambient temperature is adjusted to 25 ℃ to 27 ℃; the relative humidity is 70-90%.
8. A method for preparing a graphic cement product as claimed in claim 1, wherein said cement mixture of step 4 is cement paste, cement mortar or concrete.
9. The method for preparing cement products with images as claimed in claim 8, wherein the cement mortar comprises cement, river sand, additives and water, and the mass ratio of the cement mortar is as follows: river sand: water: the additive is 2000:1000, (590-610) and 40;
the cement is ordinary portland cement P.O 425; the fineness modulus of the river sand is 0.8; the additive is obtained by compounding water-reducing additive mother liquor, slump-retaining additive mother liquor and deionized water, wherein the water-reducing additive mother liquor is as follows: slump-retaining additive mother liquor: deionized water 7:3: 40.
10. The method for preparing cement products with images according to claim 1, wherein in the step 4, the time for removing the mold and the printing medium is 10-16 h after pouring.
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