CN116354694A - High-fracture-resistance geopolymer-based organic-inorganic composite board and preparation method thereof - Google Patents
High-fracture-resistance geopolymer-based organic-inorganic composite board and preparation method thereof Download PDFInfo
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- CN116354694A CN116354694A CN202310309465.4A CN202310309465A CN116354694A CN 116354694 A CN116354694 A CN 116354694A CN 202310309465 A CN202310309465 A CN 202310309465A CN 116354694 A CN116354694 A CN 116354694A
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- 239000002131 composite material Substances 0.000 title claims abstract description 34
- 229920000876 geopolymer Polymers 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 23
- 239000005416 organic matter Substances 0.000 claims abstract description 11
- 239000002893 slag Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 235000019353 potassium silicate Nutrition 0.000 claims description 19
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 5
- 229910001626 barium chloride Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000748 compression moulding Methods 0.000 claims description 3
- 229920001732 Lignosulfonate Polymers 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 8
- 238000005086 pumping Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000004566 building material Substances 0.000 abstract description 2
- 230000001808 coupling effect Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 22
- 238000005452 bending Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 239000011734 sodium Substances 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 238000005303 weighing Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000011368 organic material Substances 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 4
- 239000011268 mixed slurry Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- -1 acryloyloxy group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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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
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/02—Selection of the hardening environment
- C04B40/024—Steam hardening, e.g. in an autoclave
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of building materials, and discloses a high-fracture-resistance geopolymer-based organic-inorganic composite board and a preparation method thereof. The invention adds organic matter containing active group into slurry, and uses the pressure-vibration-vacuum pumping three-dimensional field coupling effect of experimental small press to enhance organic-inorganic chemical reaction, thereby preparing the organic-inorganic composite board with high flexural strength and high toughness to realize uniformity and balance.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a high-fracture-resistance geopolymer-based organic-inorganic composite board and a preparation method thereof.
Background
The geopolymer is clinker-free cement, has the characteristics of low carbon, environmental protection and high performance, and is developed and utilized to accord with the social development direction. It also has excellent early compressive strength, low permeability, erosion resistance, high temperature resistance and other properties. However, the geopolymer has the problems of low bending strength, high brittleness and the like, so that the geopolymer is limited in application of replacing cement in modern building engineering.
In recent years, the functions of film forming, bonding and the like of the inorganic cementing material doped with the organic matters are uniformly distributed in the inorganic cementing material matrix, so that the energy consumption capability of the inorganic cementing material matrix on crack propagation is improved, and the toughening function is further realized. And the organic matter can be subjected to chemical reaction with inorganic cementing material hydration products, and the organic matter fills micro cracks or defects to form an organic-inorganic interpenetrating crosslinked network structure, so that the flexural strength of the geopolymer is improved, and a new direction is developed for the toughening research of the geopolymer.
According to the current situation of combined research, even if organic matters are added into inorganic cementing materials to prepare organic-inorganic composite cementing materials to improve the flexural strength, the flexural strength is limited to about 25 percent by utilizing the common forming process. Furthermore, there was no significant improvement and investigation of toughness.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior art, the primary purpose of the invention is to provide a preparation method of a high-fracture-resistance geopolymer-based organic-inorganic composite board.
The invention also aims to provide the high-fracture-resistance geopolymer-based organic-inorganic composite board prepared by the method.
The aim of the invention is achieved by the following scheme:
the preparation method of the high-fracture-resistance geopolymer-based organic-inorganic composite board comprises the following steps:
(1) Mixing slag, water glass, retarder and water, and stirring until the slag, the water glass, the retarder and the water are uniformly mixed to obtain slurry;
(2) Mixing the slurry prepared in the step (1) with an organic matter solution containing active groups, and stirring to obtain an organic-inorganic composite plastic slurry;
(3) Pouring the organic-inorganic composite plastic slurry into a fixed iron die of an experimental small press for vibration, vacuumizing and compression molding to obtain a plate with fixed size;
(4) Covering the surface of the plate obtained in the step (3) with a waterproof film, and curing to obtain the high-fracture-resistance geopolymer-based organic-inorganic composite plate.
The modulus of the water glass in the step (1) is 1.0-2.0.
The consumption of the water glass in the step (1) is 2% -10% of the slag mass.
The retarder in the step (1) comprises at least one of barium chloride, sodium hexametaphosphate and lignosulfonate.
The retarder dosage in the step (1) is 0.5% -2% of the slag mass.
The stirring time in the step (1) is 2-10min, preferably 2min.
The organic matter containing the active group in the step (2) comprises one or two of sodium polyacrylate (PAA-Na) and a silane coupling agent; wherein the silane coupling agent comprises at least one of KH550, KH560 and KH570.
The organic matter containing active groups in the step (2) accounts for 2% -20% of the slag mass.
The total water consumption of the step (1) and the step (2) is as follows: and (3) enabling the mass ratio of water to slag in the organic-inorganic composite plastic slurry in the step (2) to be 0.1-0.5.
The stirring time in the step (2) is 2-10min, preferably 3min.
And (3) standing for 5-60min after stirring in the step (2) until forming plastic slurry with hard plastic property (0 < liquid plastic index < 0.25).
Setting the frequency of the experimental small press in the step (3) to be 5Hz-50Hz, the vibration time to be 2min-30min, and the pressure to be 0.1MPa-1MPa.
The curing in the step (4) is carried out for 12-24 days at normal temperature and then for 6-30 days; wherein the temperature of the steam curing is 40-80 ℃.
The high-fracture-resistance geopolymer-based organic-inorganic composite board prepared by the method.
The mechanism of the invention:
the experimental small press with the coupling effect of pressure-vibration-vacuum pumping three-dimensional field is used for reducing the water content, eliminating the pores and enhancing the organic-inorganic chemical reaction to prepare the organic-inorganic composite gel plate without macroscopic defects. Thereby greatly improving the strength and toughness of the inorganic cementing material, and prolonging and increasing the service life and range of the inorganic cementing material.
Compared with the prior art, the invention has the following advantages:
the high-fracture-resistance geopolymer-based organic-inorganic composite board has high fracture strength, and meanwhile, the toughness of the inorganic cementing material can be improved, so that the inorganic cementing material is unified and balanced in the aspects of high fracture strength and high toughness.
Drawings
FIG. 1 (a) is a column chart showing flexural strength properties of slag-based organic-inorganic composite boards prepared in comparative examples 1 and 2.
FIG. 1 (b) is a bar graph showing flexural strength properties of slag-based organic-inorganic composite boards prepared in comparative example 2 and examples 1 to 4.
FIG. 1 (c) is a bar graph showing flexural strength properties of slag-based organic-inorganic composite boards prepared in comparative example 2 and examples 5 to 7.
FIG. 2 (a) is a graph showing bending load-bending displacement of the organic-inorganic composite boards prepared in comparative example 2 and examples 1 to 4.
FIG. 2 (b) is a graph showing bending load-bending displacement of the organic-inorganic composite board prepared in comparative example 2 and examples 5 to 7.
FIG. 3 (a) is a graph showing fracture toughness of the organic-inorganic composite boards prepared in comparative example 2 and examples 1 to 7.
FIG. 3 (b) is a graph showing the fracture energy of the organic-inorganic composite board obtained in comparative example 2 and examples 1 to 7.
FIG. 4 is a schematic diagram of the main reaction steps.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The reagents used in the examples are commercially available as usual unless otherwise specified.
The experimental small press used in the invention is purchased from Buddha Hui Valley Co.
The water glass solution with the modulus of 3.34 is purchased from a water glass factory in Buddha mountain, the original modulus is 3.34, na 2 O is 8.94%, siO 2 28.93% and a solids content of 37.86%.
PAA-Na: purchased from Shanghai microphone with a mass concentration of 50% and a Mw of 3000.
KH550: purchased from Shanghai microphone, 97% mass concentration; KH560: purchased from Shanghai microphone, 97% mass concentration; KH570: purchased from Shanghai microphone with 97% mass concentration.
Comparative example 1
The preparation method of the slag-based inorganic board comprises the following specific steps:
(1) Dissolving 161.6g of sodium hydroxide in 1285.2g of original water glass solution with the modulus of 3.34 to prepare water glass solution with the modulus of 1.6, weighing 1.6-modulus water glass accounting for 6% of slag mass, and standing for 24 hours for standby;
(2) Weighing barium chloride accounting for 1% of slag mass, dissolving in water, and standing for later use;
(3) Fully stirring 4000g of slag and the solution obtained in the step (1) and the step (2) in a stirrer for 5min to obtain uniformly mixed slurry, wherein the total water content of the obtained slurry is 1000g, and the mass ratio of water to slag is 0.25;
(4) Placing the slurry in the step (3) in a mold with the thickness of 300mm and 25mm, and standing for 6min. And (3) steam curing at 60 ℃ for 1d, and curing at room temperature to 7d and 28d to obtain the slag-based inorganic board.
Comparative example 2
The preparation method of the slag-based inorganic board comprises the following specific steps:
(1) Dissolving 161.6g of sodium hydroxide into the original 3.2-modulus water glass solution to prepare a water glass solution with the modulus of 1.6, weighing 1.6-modulus water glass accounting for 6% of the slag mass, and standing for 24 hours for later use;
(2) Weighing barium chloride accounting for 1% of the slag mass, dissolving in water, and standing for standby;
(3) Fully stirring 4000g of slag and the solution obtained in the step (1) and the step (2) in a stirrer for 5min to obtain uniformly mixed slurry;
(4) Standing the slurry obtained in the step (3) for 6min to obtain plastic slurry with hard plastic property (0 < liquid plastic index < 0.25), wherein the total water content of the obtained plastic slurry is 1000g, and the mass ratio of water to slag is 0.25; placing the plastic slurry in a die with the thickness of 300mm and 25mm, and placing the plastic slurry in an experimental small press, wherein the parameters of the experimental small press are set to be 18Hz, the vibration time is 5min, and the pressure is 1MPa.
(5) And (3) steam curing at 60 ℃ for 1d, and curing at room temperature to 7d and 28d to obtain the slag-based inorganic board.
Example 1
The preparation method of the slag-based organic-inorganic composite cementing material comprises the following specific steps:
(1) Dissolving 161.6g of sodium hydroxide into the original 3.2-modulus water glass solution to prepare a water glass solution with the modulus of 1.6, weighing 1.6-modulus water glass accounting for 6% of the slag mass, and standing for 24 hours for later use;
(2) Weighing barium chloride accounting for 1% of the slag mass, dissolving in water, and standing for standby;
(3) Fully stirring 4000g of slag and the solution obtained in the step (1) and the step (2) in a stirrer for 2min to obtain uniformly mixed slurry;
(4) Weighing 7% of PAA-Na (7% of PAA-Na is the actual doping amount excluding water) of slag mass, dissolving in water, and standing for standby;
(5) Adding the PAA-Na solution obtained in the step (4) into the mixed slurry obtained in the step (3), continuously stirring for 3min, and standing for 16min to obtain organic-inorganic composite plastic slurry with hard plastic characteristics (0 < liquid-plastic index < 0.25), wherein the total water content of the obtained plastic slurry is 1000g, and the mass ratio of water to slag is 0.25;
(6) Placing the slurry in the step (5) in a die with the dimensions of 300mm multiplied by 25mm, placing the die in an experimental small press, setting the parameters of the experimental small press to be 18Hz, and setting the vibration time to be 5min and the pressure to be 1MPa.
(7) And (3) curing the plate obtained in the step (6) by steam curing at 60 ℃ for 1d, and curing at room temperature to 7d and 28d.
Example 2
This example is essentially the same as example 1 except that the organic material in step (4) is KH550.
Example 3
This example is essentially the same as example 1 except that the organic material in step (3) is KH560.
Example 4
This example is essentially the same as example 1 except that the organic material in step (3) is KH570.
Example 5
This example is essentially the same as example 1 except that the organic material in step (3) is 5% KH550+2% PAA-Na.
Example 6
This example is essentially the same as example 1 except that the organic material in step (3) is 5% KH560+2% PAA-Na.
Example 7
This example is essentially the same as example 1 except that the organic material in step (3) is 5% KH570+2% PAA-Na.
Comparative examples 1 and 2 have flexural strengths of 3.12mpa,4.21mpa and 3.24mpa,5.39mpa, respectively, using a general molding process and a pressure-vibration-vacuum pumping three-position coupling process, respectively, referring to fig. 1 (a), and 7d and 28d flexural strengths of comparative examples 1 and 2, respectively. The pressure-vibration-vacuum pumping three-position coupling process can improve the flexural strength.
Comparative example 2 and example the flexural strength of the three-dimensional field coupling molding process using pressure-vibration-vacuum pumping, see fig. 1 (b) and 1 (c), the flexural strengths of comparative example 2 at 7d and 28d were 4.21MPa and 5.39MPa, respectively, the flexural strengths of examples 1-4 at 7d were 6.38MPa, 6.81MPa, 4.82MPa and 8.56MPa, and the flexural strengths of 28d were 7.64MPa, 10.38MPa, 7.85MPa and 10.89MPa, respectively. The 7d flexural strengths of examples 5-7 were 17.78MPa, 10.41MPa and 16.12MPa, respectively, and the 28d flexural strengths were 19.68MPa, 12.51MPa and 21.35MPa, respectively. The addition of the bi-component organic matters can greatly improve the flexural strength of the slag-based geopolymer by utilizing the vibration vacuumizing compression molding process.
As can be seen from the bending load-bending displacement curves of the test comparative example 2 and examples 1 to 4, referring to fig. 2 (a), the addition of KH550 (example 2) and KH570 (example 4) increased from 0.032mm to 0.035mm and 0.056mm, respectively, by 9.36% and 75% under a load of 19.14N, respectively, as compared with the comparative example. The maximum bending loads of PAA-Na (example 1) and KH560 (example 3) were 7.72N and 5.60N, respectively, less than in comparative example 2, because the addition of PAA-Na and KH560 reduced the sheet strength, but the bending displacements were 0.012mm,0.040mm and 0.057mm, respectively, with a 5.56N load, as compared to comparative example 2. The addition of the single-component organic matter obviously increases the toughness of the inorganic cementing material.
As can be seen from the bending load-bending displacement curves of comparative example 2 and examples 5 to 7, referring to fig. 2 (b), example 7 and comparative example 2, example 1, example 4 and example 6, the addition of kh570+paa-Na (example 7) increased the maximum bending load to 25.78N, comparative example 2, example 1, example 4 and example 6 by 32.61%,233%,19.13%,6.98%, respectively, and the corresponding bending displacement to 0.083mm, comparative example 2, example 1, example 4 and example 6 by 166%,50.91%,34.92% and 21.43%, respectively. The essential reason for the toughness of example 7 over that of examples 5 and 6 is that KH570 contains acryloyloxy group and can be combined with organic matter PAA-Nse:Sub>A, in addition, under alkaline condition, high activity silanol produced by hydrolysis can react with slag reaction product C-A-S-H gel to act as silane coupling agent to form organic-inorganic composite network structure.
From the fracture toughness and energy of fracture histograms of comparative example 2 and examples 1-7, it can be seen from fig. 3 (a) and 3 (b) that example 7 has a fracture toughness and energy of fracture of 0.6615 mpa×m, respectively 1/2 And 102.77N/m. From the toughening angle, the inorganic cementing material based on the double-component organic matters KH570+PAA-Na composite slagThe organic-inorganic composite board prepared by the pressure-vibration-vacuum pumping three-dimensional field coupling experimental small press has the characteristics of high fracture resistance and high toughness.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (10)
1. The preparation method of the geopolymer-based organic-inorganic composite board is characterized by comprising the following steps of:
(1) Mixing slag, water glass, retarder and water, and stirring until the slag, the water glass, the retarder and the water are uniformly mixed to obtain slurry;
(2) Mixing the slurry prepared in the step (1) with an organic matter solution containing active groups, and stirring to obtain an organic-inorganic composite plastic slurry;
(3) Pouring the organic-inorganic composite plastic slurry into a fixed iron die of an experimental small press for vibration, vacuumizing and compression molding to obtain a plate with fixed size;
(4) Covering the surface of the plate obtained in the step (3) with a waterproof film, and curing to obtain the high-fracture-resistance geopolymer-based organic-inorganic composite plate.
2. The method of manufacturing according to claim 1, characterized in that: the modulus of the water glass in the step (1) is 1.0-2.0;
the consumption of the water glass in the step (1) is 2% -10% of the slag mass.
3. The method of manufacturing according to claim 1, characterized in that:
the retarder in the step (1) comprises at least one of barium chloride, sodium hexametaphosphate and lignosulfonate;
the retarder dosage in the step (1) is 0.5% -2% of the slag mass.
4. The method of manufacturing according to claim 1, characterized in that:
the organic matter containing the active group in the step (2) comprises one or two of sodium polyacrylate and a silane coupling agent;
the organic matter containing active groups in the step (2) accounts for 2% -20% of the slag mass.
5. The method of manufacturing according to claim 4, wherein: the silane coupling agent comprises at least one of KH550, KH560 and KH570.
6. The method of manufacturing according to claim 1, characterized in that: the total water consumption of the step (1) and the step (2) is as follows: and (3) enabling the mass ratio of water to slag in the organic-inorganic composite plastic slurry in the step (2) to be 0.1-0.5.
7. The method of manufacturing according to claim 1, characterized in that: and (3) standing for 5-60min after stirring in the step (2) until forming plastic slurry with hard plastic characteristics.
8. The method of manufacturing according to claim 1, characterized in that: setting the frequency of the experimental small press in the step (3) to be 5Hz-50Hz, the vibration time to be 2min-30min, and the pressure to be 0.1MPa-1MPa.
9. The method of manufacturing according to claim 1, characterized in that: the curing in the step (4) is carried out for 12-24 days at normal temperature and then for 6-30 days; wherein the temperature of the steam curing is 40-80 ℃.
10. A geopolymer-based organic-inorganic composite board prepared according to the method of any one of claims 1-9.
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| CN103214214A (en) * | 2013-02-26 | 2013-07-24 | 黄彰标 | Preparation raw materials and preparation method of inorganic man-made rock |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214214A (en) * | 2013-02-26 | 2013-07-24 | 黄彰标 | Preparation raw materials and preparation method of inorganic man-made rock |
Non-Patent Citations (2)
| Title |
|---|
| 施惠生主编: "材料概论", vol. 2, 31 August 2009, 同济大学出版社, pages: 200 * |
| 郑宇航等: "地质聚合物木材胶黏剂研究进展", 木材科学与技术, vol. 36, no. 4, 15 July 2022 (2022-07-15), pages 19 - 24 * |
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