CN116102332B - 3D printing cement-based solar photovoltaic panel bracket and preparation method thereof - Google Patents
3D printing cement-based solar photovoltaic panel bracket and preparation method thereof Download PDFInfo
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- CN116102332B CN116102332B CN202310389944.1A CN202310389944A CN116102332B CN 116102332 B CN116102332 B CN 116102332B CN 202310389944 A CN202310389944 A CN 202310389944A CN 116102332 B CN116102332 B CN 116102332B
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- 239000004568 cement Substances 0.000 title claims abstract description 48
- 238000010146 3D printing Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000002699 waste material Substances 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 19
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 17
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 239000010453 quartz Substances 0.000 claims description 15
- 235000019353 potassium silicate Nutrition 0.000 claims description 14
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 12
- 239000002202 Polyethylene glycol Substances 0.000 claims description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000011344 liquid material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims 2
- 239000004566 building material Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 10
- 239000011268 mixed slurry Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- -1 comprises quartz Chemical compound 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C04B28/24—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- 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
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/068—Specific natural sands, e.g. sea -, beach -, dune - or desert sand
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0427—Dry materials
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00181—Mixtures specially adapted for three-dimensional printing (3DP), stereo-lithography or prototyping
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Composite Materials (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of cement-based building materials, in particular to a 3D printing cement-based solar photovoltaic panel bracket and a preparation method thereof.
Description
Technical Field
The invention relates to the technical field of cement-based building materials, in particular to a 3D printing cement-based solar photovoltaic panel bracket and a preparation method thereof.
Background
With the increasing popularization of new energy, the photovoltaic industry is rapidly developed in recent years, and the installation of solar photovoltaic panels can be performed in deserts, oceans, beaches and the like, so that the basic power requirements are met. In the newly built photovoltaic project, civil engineering is used for a large amount of building materials such as steel, cement and the like, wherein the photovoltaic panel bracket has a huge demand. However, in the prior art, the photovoltaic panel bracket is often made of steel materials, and the steel materials are easy to corrode and damage at high temperature, high salt and other occasions, so that the use and maintenance costs are high.
In recent years, 3D printing technology is continuously developed and mature, prefabricated components can be produced in batches, development is rapid in the field of cement building materials, production cost can be greatly reduced, personalized, differentiated and complicated construction can be performed according to component performance requirements, but in the prior art, 3D printing construction of cement-based materials is mostly used for building construction, and more new fields have not been developed yet.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the solar photovoltaic panel bracket which is prepared by adopting a cement-based material through 3D printing, can be manufactured by one-time printing according to engineering structural design, has the advantages of high manufacturing speed, good forming effect, strong mechanical property and low construction cost, and can be used for supporting the photovoltaic panel in special environments such as ocean, desert and the like.
The invention discloses a 3D printing cement-based solar photovoltaic panel bracket which comprises the following raw materials in parts by weight:
500-600 parts of cement and the following components,
100-150 parts of quartz powder,
100-200 parts of silicon carbide waste material,
800-1000 parts of aeolian sand,
80-120 parts of water glass,
50-80 parts of steel fiber,
5-10 parts of polyethylene glycol,
20-30 parts of water reducer,
150-200 parts of water.
Preferably, the cement is Portland cement.
Preferably, the particle size of the quartz powder is 600-1000 meshes.
Preferably, the silicon carbide waste is obtained by recovering silicon wafer cutting waste residues, oxidizing the silicon wafer cutting waste residues at a high temperature of 600-700 ℃ and grinding the silicon wafer cutting waste residues to a particle size of 5-10 mu m.
According to the invention, cement is used as a cementing material, quartz powder and silicon carbide waste are added as an admixture, the cement strength grade is preferably 42.5 grade or 52.5 grade, the quartz powder is finer in granularity, the micro-filling effect can be effectively exerted, the pores of cement hydration products are filled, and the compactness of cement-based materials is improved; the invention researches that silicon carbide waste materials have pozzolanic activity and can increase plasticity of mixed slurry bodies after being doped into cement-based materials, thereby being beneficial to 3D printing and manufacturing of cement-based materials.
Preferably, the particle size of the aeolian sand is 0.05-1.25mm, the fineness modulus is 1.2-1.4. The aeolian sand mainly comprises quartz, the particles are very fine, the specific surface area is large, the grading is relatively poor and loose, the aeolian sand replaces natural river sand and the like to be used as fine aggregate, the aeolian sand meets the 3D printing manufacturing requirement through mixing proportion adjustment, a large amount of natural resources can be saved, and local materials can be obtained when the aeolian sand is used in inland.
Preferably, the water glass has a modulus of 2.4-3.0. According to the invention, the high-modulus water glass is added as a raw material, so that the viscosity of the slurry can be improved, the activity excitation can be carried out on silicon carbide waste, and the mechanical property and 3D printing performance of the bracket are improved.
Preferably, the diameter of the steel fiber is 0.1-0.2mm, and the length is 5-12mm. The solar photovoltaic panel bracket disclosed by the invention adopts a cement-based material, belongs to a brittle material, is easily degraded and invalid due to the influence of external environments such as dry and wet circulation, day and night temperature difference and the like in the service process, and is used as a slender solar photovoltaic panel bracket member to be required to be good in deflection resistance and toughness.
Preferably, the water reducing agent is at least one of naphthalene water reducing agent and polycarboxylate water reducing agent. The cementing material disclosed by the invention has high total quantity, the water reducer is added to break the particle flocculation structure, the water consumption of the cement-based material is reduced, the polyethylene glycol is added to improve the supporting effect in the printing process of the mixed slurry, and the printing slurry has reasonable setting time, so that the opening time before 3D printing is met, and the setting after 3D printing is also met.
Preferably, the water is tap water.
The invention also relates to a preparation method of the 3D printing cement-based solar photovoltaic panel bracket, which comprises the following steps:
1) Weighing the raw materials according to the weight portions,
2) Adding polyethylene glycol, a water reducing agent, triethanolamine and tartaric acid into water, stirring uniformly to obtain a liquid material,
3) Cement, quartz powder and aeolian sand are uniformly mixed, steel fibers are added into the mixture for forced stirring uniformly, liquid materials are added into the mixture for uniform stirring, and the mixture is obtained,
4) Sequentially adding silicon carbide waste and water glass into the mixture, and uniformly mixing to obtain the silicon carbide composite material.
Compared with the prior art, the invention has the following technical advantages:
1. the invention adopts cement-based materials to prepare the photovoltaic panel bracket, has wide environment application range,
2. the silicon carbide waste is added to realize waste utilization, reduce cost and increase efficiency,
3. realizes the utilization of the aeolian sand, saves natural resources,
4. the support has good mechanical property and strong durability
5. The 3D printing construction is adopted, so that the method is rapid and efficient and low in cost.
Detailed Description
The technical effect of the 3D printing cement-based solar photovoltaic panel bracket is detected, specifically, P.O 42.5 ordinary Portland cement is adopted as cement, the particle size of quartz powder is 800 meshes, the modulus of water glass is 3.0, the fly ash of a comparative example is secondary fly ash, the mineral powder is S95-grade mineral powder, a 3D printer is used for printing and manufacturing a 1 multiplied by 30cm vertical component, the molding condition is observed, and a 4 multiplied by 16cm prism test piece is manufactured to test 28D compressive strength and 28D flexural strength.
Example 1
The 3D printing cement-based solar photovoltaic panel bracket comprises the following raw materials in parts by weight: 520 parts of cement, 130 parts of quartz powder, 130 parts of silicon carbide waste, 900 parts of aeolian sand, 100 parts of water glass, 60 parts of steel fiber, 8 parts of polyethylene glycol, 23 parts of a water reducer and 170 parts of water.
Through detection, the 3D printing formability of the mixed slurry is good, the vertical member does not collapse, deform and incline, the compressive strength of the test piece 28D is 105.6MPa, and the flexural strength of the test piece 28D is 15.3MPa.
Example two
The 3D printing cement-based solar photovoltaic panel bracket comprises the following raw materials in parts by weight: 550 parts of cement, 120 parts of quartz powder, 150 parts of silicon carbide waste, 900 parts of aeolian sand, 110 parts of water glass, 70 parts of steel fiber, 8 parts of polyethylene glycol, 26 parts of a water reducer and 180 parts of water.
Through detection, the 3D printing formability of the mixed slurry is good, the vertical member does not collapse, deform and incline, the compressive strength of the test piece 28D is 122.5MPa, and the flexural strength of the test piece 28D is 17.8MPa.
Comparative example 1
The 3D printing support comprises the following raw materials in parts by weight: 550 parts of cement, 120 parts of fly ash, 150 parts of silicon carbide waste, 900 parts of aeolian sand, 110 parts of water glass, 70 parts of steel fiber, 8 parts of polyethylene glycol, 26 parts of water reducer and 180 parts of water.
Through detection, the 3D printing formability of the mixed slurry is poor, the vertical member is inclined, the compressive strength of the test piece 28D is 89.3MPa, and the flexural strength of the test piece 28D is 14.1MPa.
Comparative example 2
The 3D printing support comprises the following raw materials in parts by weight: 550 parts of cement, 120 parts of quartz powder, 150 parts of fly ash, 900 parts of aeolian sand, 110 parts of water glass, 70 parts of steel fiber, 8 parts of polyethylene glycol, 26 parts of water reducer and 180 parts of water.
Through detection, the mixed slurry body can not be subjected to 3D printing forming.
Comparative example 3
The 3D printing support comprises the following raw materials in parts by weight: 600 parts of cement, 150 parts of quartz powder, 150 parts of silicon carbide waste, 930 parts of aeolian sand, 70 parts of steel fiber, 8 parts of polyethylene glycol, 26 parts of water reducer and 180 parts of water.
Through detection, the 3D printing formability of the mixed slurry is poor, the vertical member collapses, the compressive strength of the test piece 28D is 83.3MPa, and the flexural strength of the test piece 28D is 12.5MPa.
Comparative example 4
The 3D printing support comprises the following raw materials in parts by weight: 550 parts of cement, 120 parts of quartz powder, 150 parts of silicon carbide waste, 900 parts of aeolian sand, 110 parts of water glass, 70 parts of steel fiber, 34 parts of water reducer and 180 parts of water.
Through detection, the mixed slurry body can not be subjected to 3D printing forming.
Comparative example 5
The 3D printing support comprises the following raw materials in parts by weight: 550 parts of cement, 120 parts of fly ash, 150 parts of silica fume, 900 parts of aeolian sand, 110 parts of water glass, 70 parts of steel fiber, 8 parts of polyethylene glycol, 26 parts of water reducer and 180 parts of water.
Through detection, the mixed slurry body can not be subjected to 3D printing forming.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limited thereto; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The 3D printing cement-based solar photovoltaic panel bracket is characterized by comprising the following raw materials in parts by weight:
500-600 parts of cement and the following components,
100-150 parts of quartz powder,
100-200 parts of silicon carbide waste material,
800-1000 parts of aeolian sand,
80-120 parts of water glass,
50-80 parts of steel fiber,
5-10 parts of polyethylene glycol,
20-30 parts of water reducer,
150-200 parts of water.
2. The 3D printed cement-based solar photovoltaic panel bracket according to claim 1, wherein the cement is Portland cement.
3. The 3D printed cement-based solar photovoltaic panel bracket according to claim 1, wherein the quartz powder has a particle size of 600-1000 mesh.
4. The 3D printing cement-based solar photovoltaic panel bracket according to claim 1, wherein the silicon carbide waste is obtained by recovering silicon wafer cutting waste residues, oxidizing the silicon wafer cutting waste residues at a high temperature of 600-700 ℃ and grinding the silicon wafer cutting waste residues to a particle size of 5-10 μm.
5. The 3D printed cement-based solar photovoltaic panel bracket according to claim 1, wherein the aeolian sand has a particle size of 0.05-1.25mm and a fineness modulus of 1.2-1.4.
6. The 3D printed cement-based solar photovoltaic panel bracket according to claim 1, wherein the water glass modulus is 2.4-3.0.
7. The 3D printed cement-based solar photovoltaic panel bracket according to claim 1, wherein the steel fiber has a diameter of 0.1-0.2mm and a length of 5-12mm.
8. The 3D printed cement-based solar photovoltaic panel bracket according to claim 1, wherein the water reducer is at least one of naphthalene-based water reducer and polycarboxylate water reducer.
9. The 3D printed cement-based solar photovoltaic panel rack of claim 1, wherein the water is tap water.
10. The method for preparing a 3D printed cement-based solar photovoltaic panel bracket according to any one of claims 1 to 9, comprising the steps of:
1) Weighing the raw materials according to the weight portions,
2) Adding polyethylene glycol, a water reducing agent, triethanolamine and tartaric acid into water, stirring uniformly to obtain a liquid material,
3) Cement, quartz powder and aeolian sand are uniformly mixed, steel fibers are added into the mixture for forced stirring uniformly, liquid materials are added into the mixture for uniform stirring, and the mixture is obtained,
4) Sequentially adding silicon carbide waste and water glass into the mixture, and uniformly mixing to obtain the silicon carbide composite material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310389944.1A CN116102332B (en) | 2023-04-13 | 2023-04-13 | 3D printing cement-based solar photovoltaic panel bracket and preparation method thereof |
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| CN202310389944.1A CN116102332B (en) | 2023-04-13 | 2023-04-13 | 3D printing cement-based solar photovoltaic panel bracket and preparation method thereof |
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| CN116102332B true CN116102332B (en) | 2023-06-09 |
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| CN107298546A (en) * | 2017-06-16 | 2017-10-27 | 南京理工大学 | Alkali-activated carbonatite binder materials and its Method of printing for 3D printing |
| CN109531771A (en) * | 2018-12-07 | 2019-03-29 | 中国建筑材料科学研究总院有限公司 | Device and method based on 3D printing preparation building structure |
| WO2020113907A1 (en) * | 2018-12-07 | 2020-06-11 | 中国建筑材料科学研究总院有限公司 | 3d printing-based building structure manufacturing device and method |
| CN114292073A (en) * | 2022-01-06 | 2022-04-08 | 河北工业大学 | Aeolian sand anti-freezing concrete capable of being printed in 3D mode and preparation method and using method thereof |
| CN115893959A (en) * | 2023-02-15 | 2023-04-04 | 石家庄铁道大学 | 3D printing desert sand ultrahigh-ductility concrete and preparation method thereof |
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