CN114890736A - Modified basalt fiber inorganic artificial stone and preparation method thereof - Google Patents
Modified basalt fiber inorganic artificial stone and preparation method thereof Download PDFInfo
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- CN114890736A CN114890736A CN202210473374.XA CN202210473374A CN114890736A CN 114890736 A CN114890736 A CN 114890736A CN 202210473374 A CN202210473374 A CN 202210473374A CN 114890736 A CN114890736 A CN 114890736A
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- 239000002969 artificial stone Substances 0.000 title claims abstract description 77
- 229920002748 Basalt fiber Polymers 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 66
- 239000000843 powder Substances 0.000 claims abstract description 41
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 31
- 239000000839 emulsion Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 20
- 239000011707 mineral Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 19
- 239000011398 Portland cement Substances 0.000 claims abstract description 17
- 239000010453 quartz Substances 0.000 claims abstract description 16
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 239000008399 tap water Substances 0.000 claims description 11
- 235000020679 tap water Nutrition 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 4
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 239000012615 aggregate Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 8
- 239000003973 paint Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 239000004568 cement Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011900 installation process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001721 carbon Chemical class 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- DFGKGUXTPFWHIX-UHFFFAOYSA-N 6-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]acetyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)C1=CC2=C(NC(O2)=O)C=C1 DFGKGUXTPFWHIX-UHFFFAOYSA-N 0.000 description 1
- 241000533950 Leucojum Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013500 performance material Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002195 synergetic effect Effects 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
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- 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
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/54—Substitutes for natural stone, artistic materials or the like
- C04B2111/542—Artificial natural stone
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a modified basalt fiber inorganic artificial stone and a preparation method thereof, and solves the technical problems that no method with simple process steps is available and the method is suitable for keeping the good color of the surface of the artificial stone after fiber is doped for toughening in the prior art. The paint comprises the following chemical components in parts by weight: 35-65 parts of white portland cement, 40-80 parts of aggregate, 0.05-2 parts of emulsion, 0.5-3 parts of modified basalt fiber, 1-5 parts of water solution, 0.2-1 part of water reducing agent, 1-5 parts of silica fume, 1-5 parts of superfine mineral powder, 1-10 parts of quartz powder and 0.1-0.5 part of defoaming agent; the modified basalt fiber comprises the following chemical components in parts by weight: 0.1-4 parts of silane coupling agent, 80-100 parts of anhydrous ethanol and 100 parts of basalt chopped fiber. According to the invention, by adopting the design idea of toughening the whole inorganic artificial stone, the preparation and forming process of the plate is easier to control, the phenomenon of layering or uneven color can be effectively prevented, the problem of fiber leakage can be prevented by adopting the modified basalt fiber, the appearance is more attractive, and the color of the modified basalt fiber is not changed.
Description
Technical Field
The invention relates to the technical field of building decoration materials, in particular to a modified basalt fiber inorganic artificial stone and a preparation method thereof.
Background
The inorganic artificial stone is a building decoration material, and is prepared by mixing inorganic adhesive such as cement and the like with aggregate, mineral admixture, additive and the like, wherein the inorganic artificial stone mainly takes portland cement as a main cementing material, has strong pressure resistance but poor bending resistance and deformation capability, and is easy to crack under the action of external force and internal force. The defect of large brittleness of cement-based artificial stone products leads to the fact that the products are easy to collide to generate corner collapse and fracture in the transportation and installation processes.
Patent CN201810929011.6 discloses a fiber concrete toughened cement-based inorganic artificial stone plate and a preparation method thereof, which is to compound a high-bending-performance material and an inorganic artificial stone with a process of preparing the inorganic artificial stone plate by a cast-in-place method, so as to improve the bending strength of the inorganic artificial stone decorative plate. However, the inorganic artificial stone is toughened mainly by doping fibers, and the inorganic artificial stone slab can have the problem of fiber leakage by using other fiber methods, so that the appearance quality of the inorganic artificial stone slab is influenced. Patent CN201810929011.6 adopts the mode of layering cloth to solve surface layer outward appearance problem, but its technology is complicated loaded down with trivial details, and the cutting trailing flank still has the problem that the fibre leaks outward, seriously influences rostone surface design and color.
Disclosure of Invention
The invention aims to provide a modified basalt fiber inorganic artificial stone and a preparation method thereof, and aims to solve the technical problems that no method with simple process steps is available and the method is suitable for keeping the good color of the surface of the artificial stone after fiber is doped for toughening in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a modified basalt fiber inorganic artificial stone which comprises the following chemical components in parts by weight: 35-65 parts of white portland cement, 40-80 parts of aggregate, 0.05-2 parts of emulsion, 0.5-3 parts of modified basalt fiber, 1-5 parts of water solution, 0.2-1 part of water reducing agent, 1-5 parts of silica fume, 1-5 parts of superfine mineral powder, 1-10 parts of quartz powder and 0.1-0.5 part of defoaming agent;
the modified basalt fiber comprises the following chemical components in parts by weight: 0.1-4 parts of silane coupling agent, 80-100 parts of anhydrous ethanol and 100 parts of basalt chopped fiber.
Optionally or preferably, the aggregate is one or more of quartz sand, calcium carbonate, waste glass and recycled aggregate, and the particle size of the aggregate is 0.1-20 mm.
Alternatively or preferably, the emulsion is one or both of a polyurethane and a styrene-acrylic emulsion.
Optionally or preferably, the silane coupling agent is any one or more of gamma-aminopropyltriethoxysilane, gamma-propyltrimethoxysilane and gamma-methacryloxypropyltrimethoxysilane.
Optionally or preferably, the superfine mineral powder is any one or more of silica fume, superfine slag, superfine fly ash, superfine zeolite powder and superfine limestone powder.
Alternatively or preferably, the length of the basalt chopped fiber is 2-6mm, and the monofilament diameter is 10-17 μm.
The invention provides a preparation method of a modified basalt fiber inorganic artificial stone, which comprises the following processing steps:
s1, preparing modified basalt fibers, mixing a silane coupling agent and absolute ethyl alcohol according to a proportion, carrying out ultrasonic treatment on the basalt chopped fibers in a mixed solution for 2 hours, and drying in an oven at the temperature of 110-;
s2, mixing white Portland cement, silica fume, superfine mineral powder, quartz powder, aggregate, emulsion, modified basalt fiber, water liquid, a water reducing agent and a defoaming agent according to a ratio, and pressing and forming under a vacuum condition, wherein the vacuum degree is-0.08 MPa, and the pressing pressure is 1MPa, so that the inorganic artificial stone is finally prepared.
Based on the technical scheme, the embodiment of the invention can at least produce the following technical effects:
(1) according to the modified basalt fiber inorganic artificial stone and the preparation method thereof provided by the invention, the high-toughness inorganic artificial stone is prepared by taking the modified basalt fiber as a raw material, a design idea of toughening the whole inorganic artificial stone is adopted, the preparation and forming process of the plate is easier to control, the phenomenon of layering or uneven color can be effectively prevented, the problem of fiber leakage can be prevented by adopting the modified basalt fiber, the appearance is more attractive, and the color of the fiber is not changed.
(2) According to the modified basalt fiber inorganic artificial stone and the preparation method thereof, the basalt fiber is modified by adopting the silane coupling agent, and is physically adsorbed on the surface of the fiber, so that micro cracks on the surface of the fiber are filled; meanwhile, the silane coupling agent carries hydrophilic groups after hydrolysis and can be connected with the H on the surface of the fiber + The isopolar molecules combine to increase the fiber surface strength. Meanwhile, the coupling interaction attached to the surface of the single-bundle fiber increases the bundling property of the fiber. After the silane coupling agent is hydrolyzed and condensed, the solution contains a large amount of polar groups such as C-C, C-N, saturated carbon and the like, so that the activity of the original smooth surface of the fiber is improved, the combination between the fiber and a cement-based material is facilitated, a composite material interface with stronger bonding is formed, and higher mechanical property of the composite material is brought. The bending strength of the artificial stone can be improved without changing the existing process, and the occurrence of edge breakage and corner falling of the inorganic artificial stone in the transportation and installation processes can be reduced. Meanwhile, the diameter of the basalt chopped fiber monofilament reaches the micron level, the surface of the basalt chopped fiber monofilament is smooth in an artificial stone system, the risk of similar steel fibers leaking outwards is avoided, and the fibers cannot be seen in the inner section of the artificial stone system. The modified basalt fiber can improve the toughness of the inorganic artificial stone, reduce edge breakage and corner drop of the inorganic artificial stone and does not influence the appearance and color of the inorganic artificial stone.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below, it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and features in the following embodiments and embodiments may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a modified basalt fiber inorganic artificial stone which comprises the following chemical components in parts by weight: 35-65 parts of white portland cement, 40-80 parts of aggregate, 0.05-2 parts of emulsion, 0.5-3 parts of modified basalt fiber, 1-5 parts of water solution, 0.2-1 part of water reducing agent, 1-5 parts of silica fume, 1-5 parts of superfine mineral powder, 1-10 parts of quartz powder and 0.1-0.5 part of defoaming agent;
the modified basalt fiber comprises the following chemical components in parts by weight: 0.1-4 parts of silane coupling agent, 80-100 parts of anhydrous ethanol and 100 parts of basalt chopped fiber.
The white Portland cement is also called white cement, and the white cement is limestone (Fe) 2 0 3 <0.05%) white mud, porcelain stone and snowflake gypsum, wherein in the process of firing the clinker, a method of watering at high temperature is adopted to improve the whiteness, a Raymond mill with less iron is mixed in the grinding process, and iron powder is not added in the raw materials.
The aggregate is a granular loose material which plays a role of a framework or a filling function in concrete.
The silica fume can be added to play a synergistic role in hydration with cement, so that the performance of the inorganic artificial stone material is improved.
The addition of the superfine mineral powder can improve the pore structure and the cement aggregate interface structure, thereby improving the performance of the concrete material.
The quartz powder is added to achieve the optimal grading, and the pore structure is improved, so that the performance of the concrete material is improved.
The mixing liquid is any one of tap water and styrene-acrylic emulsion or water and polyurethane emulsion. Tap water is used for dissolving the inorganic cementing material and is the main component in the hydration reaction of the inorganic cementing material; the styrene-acrylic or polyurethane emulsion is added into the artificial stone system to play a role in water retention.
According to the silane coupling agent, after hydrolytic condensation, the solution contains a large amount of polar groups such as C-C, C-N and saturated carbon, so that the activity of the original smooth surface of the fiber is improved, the combination between the fiber and a cement-based material is facilitated, a composite material interface with stronger bonding is formed, and higher mechanical properties of the composite material are brought. The bending strength of the inorganic artificial stone is improved, and the occurrence of edge breakage and corner falling of the inorganic artificial stone in the transportation and installation processes is reduced.
The absolute ethyl alcohol plays a role in dispersing the silane coupling agent, and the opportunity of mutual contact between the silane coupling agent and the basalt fibers is improved.
As an optional embodiment, the aggregate is one or more of quartz sand, calcium carbonate, waste glass and recycled aggregate, and the particle size of the aggregate is 0.1-20 mm.
As an alternative embodiment, the emulsion is one or both of a polyurethane and a styrene-acrylic emulsion.
In an alternative embodiment, the silane coupling agent is any one or more of gamma-aminopropyltriethoxysilane, gamma-propyltrimethoxysilane and gamma-methacryloxypropyltrimethoxysilane.
As an optional embodiment, the ultrafine mineral powder is any one or more of silica fume, ultrafine slag, ultrafine fly ash, ultrafine zeolite powder and ultrafine limestone powder.
As an alternative embodiment, the length of the basalt chopped fiber is 2-6mm, and the monofilament diameter is 10-17 μm.
The invention provides a preparation method of a modified basalt fiber inorganic artificial stone, which comprises the following processing steps:
s1, preparing modified basalt fibers, mixing a silane coupling agent and absolute ethyl alcohol according to a proportion, carrying out ultrasonic treatment on the basalt chopped fibers in a mixed solution for 2 hours, and drying in an oven at the temperature of 110-;
s2, mixing white portland cement, silica fume, superfine mineral powder, quartz powder, aggregate, emulsion, modified basalt fiber, water liquid, a water reducing agent and a defoaming agent according to a ratio, and performing compression molding under a vacuum condition, wherein the vacuum degree is-0.08 MPa, and the compression pressure is 1MPa, thereby finally preparing the inorganic artificial stone.
(1) According to the modified basalt fiber inorganic artificial stone and the preparation method thereof, the high-toughness inorganic artificial stone is prepared by taking the modified basalt fiber as a raw material, the design idea of toughening the whole inorganic artificial stone is adopted, the preparation and forming process of the plate is easier to control, the phenomenon of layering or uneven color can be effectively prevented, the problem of fiber leakage can be prevented by adopting the modified basalt fiber, the appearance is more attractive, and the color of the fiber is not changed;
(2) according to the modified basalt fiber inorganic artificial stone and the preparation method thereof, the basalt fiber is modified by adopting the silane coupling agent, and is physically adsorbed on the surface of the fiber, so that micro cracks on the surface of the fiber are filled; meanwhile, the silane coupling agent carries hydrophilic groups after hydrolysis and can be connected with the H on the surface of the fiber + The isopolar molecules combine to increase the fiber surface strength. Meanwhile, the coupling interaction attached to the surface of the single-bundle fiber increases the bundling property of the fiber. After the silane coupling agent is hydrolyzed and condensed, the solution contains a large amount of polar groups such as C-C, C-N, saturated carbon and the like, so that the activity of the original smooth surface of the fiber is improved, the combination between the fiber and a cement-based material is facilitated, a composite material interface with stronger bonding is formed, and higher mechanical property of the composite material is brought. The bending strength of the artificial stone can be improved without changing the existing process, and the occurrence of edge breakage and corner falling of the inorganic artificial stone in the transportation and installation processes can be reduced. Meanwhile, the diameter of the basalt chopped fiber monofilament reaches the micron level, the surface of the basalt chopped fiber monofilament is smooth in an artificial stone system, the risk of similar steel fibers leaking outwards is avoided, and the fibers cannot be seen in the inner section of the artificial stone system. The modified basalt fiber can improve the toughness of the inorganic artificial stone, reduce edge breakage and corner drop of the inorganic artificial stone and does not influence the appearance and color of the inorganic artificial stone.
Example 1
1.1 raw material ratio
The modified basalt fiber prepared in example 1 comprises the following chemical components in parts by weight: 1 part of silane coupling agent, 100 parts of absolute ethyl alcohol and 100 parts of basalt chopped fiber.
As an alternative embodiment, the silane coupling agent is gamma-methacryloxypropyltrimethoxysilane.
In an alternative embodiment, the basalt chopped fibers have a length of 3mm and a monofilament diameter of 17 μm.
1.2 preparation method
The preparation of the modified basalt fiber prepared in example 1 includes the following steps: mixing a silane coupling agent and absolute ethyl alcohol according to a proportion, carrying out ultrasonic treatment on the basalt chopped fiber in the mixed solution for 2 hours, and drying in an oven at the temperature of 120 ℃ for 1 hour to obtain the modified basalt fiber.
Example 2
2.1 raw material ratio
The modified basalt fiber prepared in example 2 comprises the following chemical components in parts by weight: 2 parts of silane coupling agent, 100 parts of absolute ethyl alcohol and 100 parts of basalt chopped fiber.
As an alternative embodiment, the silane coupling agent is gamma-propyltrimethoxysilane.
In an alternative embodiment, the basalt chopped fibers have a length of 3mm and a monofilament diameter of 17 μm.
2.2 preparation method
The preparation of the modified basalt fiber prepared in the embodiment 2 includes the following steps: mixing a silane coupling agent and absolute ethyl alcohol according to a proportion, carrying out ultrasonic treatment on the basalt chopped fiber in the mixed solution for 2 hours, and drying in an oven at the temperature of 110-.
Example 3
3.1 raw material ratio
The modified basalt fiber prepared in example 3 comprises the following chemical components in parts by weight: 2 parts of silane coupling agent, 100 parts of absolute ethyl alcohol and 100 parts of basalt chopped fiber.
In an alternative embodiment, the silane coupling agent is gamma-aminopropyltriethoxysilane.
In an alternative embodiment, the basalt chopped fibers have a length of 3mm and a monofilament diameter of 17 μm.
3.2 preparation method
The preparation of the modified basalt fiber prepared in example 3 includes the following steps: mixing a silane coupling agent and absolute ethyl alcohol according to a proportion, carrying out ultrasonic treatment on the basalt chopped fiber in the mixed solution for 2 hours, and drying in an oven at the temperature of 110-.
Comparative example 1
Preparing inorganic artificial stone, including 40 parts of white Portland cement; 5 parts of silica fume; 5 parts of superfine mineral powder; 3 parts of quartz powder; 40 parts of quartz sand aggregate; 2 parts of polyurethane emulsion; 4.5 parts of tap water; 0.4 part of a water reducing agent; 0.1 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Control column 2:
preparing inorganic artificial stone, including 40 parts of white Portland cement; 4 parts of silica fume; 4 parts of superfine mineral powder; 3 parts of quartz powder; 41 parts of waste glass aggregate; 2 parts of polyurethane emulsion; 1 part of unmodified basalt chopped fiber; 4.5 parts of tap water; 0.4 part of a water reducing agent; 0.1 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Application example 1:
preparing inorganic artificial stone, including 40 parts of white Portland cement; 2 parts of silica fume; 5 parts of superfine mineral powder; 5 parts of quartz powder; 40 parts of waste glass aggregate; 2 parts of polyurethane emulsion; 1 part of the modified basalt chopped fiber of example 1; 4.5 parts of tap water; 0.4 part of a water reducing agent; 0.1 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Application example 2:
preparing inorganic artificial stone, including 40 parts of white Portland cement; 3 parts of silica fume; 4 parts of superfine mineral powder; 3 parts of quartz powder; 40 parts of waste glass aggregate; 2 parts of polyurethane emulsion; 2 parts of the modified basalt chopped fiber of example 1; 4.5 parts of tap water; 0.4 part of a water reducing agent; 0.1 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Application example 3:
preparing inorganic artificial stone, including 40 parts of white Portland cement; 1 part of silica fume; 5 parts of superfine mineral powder; 6 parts of quartz powder; 40 parts of waste glass aggregate; 2 parts of polyurethane emulsion; 1 part of the modified basalt chopped fiber of example 2; 4.5 parts of tap water; 0.4 part of a water reducing agent; 0.1 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Application example 4:
preparing inorganic artificial stone, including 40 parts of white Portland cement; 2 parts of silica fume; 5 parts of superfine mineral powder; 5 parts of quartz powder; 40 parts of waste glass aggregate; 2 parts of polyurethane emulsion; 1 part of the modified basalt chopped strand of example 3; 4.5 parts of tap water; 0.4 part of a water reducing agent; 0.1 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Application example 5
Preparing inorganic artificial stone, including 65 parts of white portland cement; 5 parts of silica fume; 5 parts of superfine mineral powder; 10 parts of quartz powder; 40 parts of waste glass aggregate; 1 part of polyurethane emulsion; 3 parts of the modified basalt chopped strand of example 1; 5 parts of tap water; 1 part of a water reducing agent; 0.5 part of a defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
Application example 6
Preparing inorganic artificial stone, including 35 parts of white portland cement; 1 part of silica fume; 1 part of superfine mineral powder; 1 part of quartz powder; 40 parts of waste glass aggregate; 0.05 part of styrene-acrylic emulsion; 0.5 part of the modified basalt chopped fiber of example 1; 0.2 part of tap water; 0.2 part of a water reducing agent; 0.3 part of defoaming agent. And (3) performing press forming, and curing the prepared artificial stone to 28-day age at the temperature of 23 +/-2 ℃ and the relative humidity of 70 +/-5%.
The following table is the 28d flexural strength value data for the formulations of examples 1-6:
| modified basalt fiber/%) | Flexural strength/MPa | |
| Control column 1 | 0 | 18.27 |
| Comparative example 2 | 1 (unmodified fiber) | 22.84 |
| Application example 1 | 1 | 25.34 |
| Application example 2 | 2 | 24.46 |
| Application example 3 | 1 | 23.97 |
| Application example 4 | 1 | 24.02 |
| Application example 5 | 3 | 22.71 |
| Application example 6 | 0.5 | 21.06 |
As is readily apparent from the above table, the incorporation of the basalt chopped fiber treated with the silane coupling agent significantly improves the 28-day flexural strength thereof. When the content of the chopped basalt fiber modified by using the silane coupling agent KH570 is 1%, the bending strength of the chopped basalt fiber modified by using the silane coupling agent KH570 can reach 25.34MPa, which is increased by 38.7% compared with that of the blank example 1, and the occurrence of the conditions of edge breakage and corner fall of the artificial stone is reduced due to the increase of the bending strength of the artificial stone. Meanwhile, the modified basalt chopped fiber monofilaments are added in a micron-sized diameter grade, the risk of fiber leakage is avoided, and the color and the appearance of the artificial stone are not influenced.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The modified basalt fiber inorganic artificial stone is characterized by comprising the following chemical components in parts by weight: 35-65 parts of white portland cement, 40-80 parts of aggregate, 0.05-2 parts of emulsion, 0.5-3 parts of modified basalt fiber, 1-5 parts of water solution, 0.2-1 part of water reducing agent, 1-5 parts of silica fume, 1-5 parts of superfine mineral powder, 1-10 parts of quartz powder and 0.1-0.5 part of defoaming agent;
the modified basalt fiber comprises the following chemical components in parts by weight: 0.1-4 parts of silane coupling agent, 80-100 parts of anhydrous ethanol and 100 parts of basalt chopped fiber.
2. A modified basalt fiber inorganic artificial stone according to claim 1, wherein: the aggregate is one or more of quartz sand, calcium carbonate, waste glass and recycled aggregate, and the particle size of the aggregate is 0.1-20 mm.
3. A modified basalt fiber inorganic artificial stone according to claim 1, wherein: the emulsion is one or two of polyurethane and styrene-acrylic emulsion.
4. A modified basalt fiber inorganic artificial stone according to claim 1, wherein: the silane coupling agent is one or more of gamma-aminopropyltriethoxysilane, gamma-propyltrimethoxysilane and gamma-methacryloxypropyltrimethoxysilane.
5. A modified basalt fiber inorganic artificial stone according to claim 1, wherein: the superfine mineral powder is one or more of silica fume, superfine slag, superfine fly ash, superfine zeolite powder and superfine limestone powder.
6. A modified basalt fiber inorganic artificial stone according to claim 1, wherein: the length of the basalt chopped fiber is 2-6mm, and the diameter of each monofilament is 10-17 mu m.
7. The preparation method of the modified basalt fiber inorganic artificial stone according to claim 1, comprising the following processing steps:
s1, preparing modified basalt fiber, mixing a silane coupling agent and absolute ethyl alcohol according to a proportion, carrying out ultrasonic treatment on the basalt chopped fiber in the mixed solution for 2 hours, and drying in an oven at the temperature of 110-130 ℃ for 1 hour to obtain the modified basalt fiber;
s2, mixing white Portland cement, silica fume, superfine mineral powder, quartz powder, aggregate, emulsion, modified basalt fiber, tap water, a water reducing agent and a defoaming agent according to a ratio, and pressing and forming under a vacuum condition, wherein the vacuum degree is-0.08 MPa, and the pressing pressure is 1MPa, so that the inorganic artificial stone is finally prepared.
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