CN112252515A - Graphene heating wallboard and preparation method thereof - Google Patents

Graphene heating wallboard and preparation method thereof Download PDF

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Publication number
CN112252515A
CN112252515A CN202011146623.1A CN202011146623A CN112252515A CN 112252515 A CN112252515 A CN 112252515A CN 202011146623 A CN202011146623 A CN 202011146623A CN 112252515 A CN112252515 A CN 112252515A
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China
Prior art keywords
substrate
slurry
wallboard
graphene
graphene film
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Granted
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CN202011146623.1A
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Chinese (zh)
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CN112252515B (en
Inventor
李小林
孟雷
张猛进
黄彦平
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ANHUI HANHUA BUILDING MATERIALS TECHNOLOGY Co.,Ltd.
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Changzhou Jinhai Anti Static Pvc Floor Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/02—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material with fibres or particles being present as additives in the layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/14—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
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    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • C04B28/30—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 magnesium cements or similar cements
    • C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/06—Vegetal particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/12—Mixture of at least two particles made of different materials
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
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    • B32B2607/00—Walls, panels
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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    • 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

Abstract

A graphene heat-generating wallboard comprising: substrate, graphite alkene film, surface decoration material, the substrate includes: upper substrate, lower floor's substrate, the graphite alkene film clamp still includes between upper substrate and lower floor's substrate: the graphene film comprises a graphene film and a glass fiber mesh cloth, wherein the graphene film is arranged on the upper surface and the lower surface of the graphene film, the glass fiber mesh cloth is arranged on the lower surface of the graphene film, and the upper substrate and the lower substrate are integrally formed. According to the invention, the slurry is used for preparing the upper substrate and the lower substrate by a slurry coating method, the upper substrate and the lower substrate are integrally formed, the overall performance of the wallboard is improved, and meanwhile, the graphene film is placed between the upper substrate and the lower substrate in the forming process of the upper substrate and the lower substrate, and is fixed between the upper substrate and the lower substrate without being calendered and adhered, so that the graphene film is prevented from being damaged in the calendering process; meanwhile, the base material is improved to have excellent protective performance and mechanical performance.

Description

Graphene heating wallboard and preparation method thereof
Technical Field
The invention relates to the field of wallboards, in particular to a graphene heating wallboard and a preparation method thereof.
Background
Graphene wall board is installed graphene film in the wallboard, and the graphite film is for indoor heating heat preservation after the circular telegram, and present graphene wall board generally pastes the pressfitting with graphene film between two blocks of wallboards, and the graphene heating wall board that adopts this kind of method to prepare receives the extrusion damage easily at the graphite film in the course of working to graphene wall board wholeness ability is not good, and upper and lower two-layer wallboard separates easily, and current graphene wall board fire prevention thermal insulation performance is not good simultaneously.
Disclosure of Invention
Aiming at the problems in the background art, the invention provides a graphene heating wallboard and a preparation method thereof, wherein the preparation method comprises the following steps: substrate, graphite alkene film, surface decoration material, its characterized in that, the substrate includes: upper substrate, lower floor's substrate, the graphite alkene film clamp is between upper substrate and lower floor's substrate, the surface decoration material laminating is in the upper surface of upper substrate still includes: the graphene film comprises glass fiber mesh cloth, wherein the glass fiber mesh cloth is adhered with two layers of upper and lower surfaces of the graphene film respectively, two electrode access ports are installed at the lower end of the graphene film, and the upper layer substrate and the lower layer substrate are integrally formed.
Further, the base material is a composite material with fire-proof performance.
The invention also provides a preparation method of the graphene heating wallboard, which comprises the following steps:
s1, preparing slurry: adding into a mixing device: the method comprises the following steps of stirring magnesium oxide powder, magnesium chloride halogen liquid, sulfite wood pulp, plant fiber powder, kaolin powder, instant rubber powder, water and a modifier until pasty slurry is formed, wherein the sulfite wood pulp takes a mixed liquid of sulfurous acid and acid sulfite as a cooking agent, and has longer wood fiber, soft property, good toughness, high strength and good interweaving capability, and can play a role in cross-linking material powder; the magnesium oxide is industrial light-burned magnesium oxide, which is mixed with magnesium chloride aqueous solution in a certain proportion, and is gelled and hardened into the fireproof board with certain physical and mechanical properties. The board can generate heat in the chemical reaction process, the maintenance period is about 7 days, and the manufactured board has the advantages of light weight, high strength, fire resistance, heat insulation, energy conservation and environmental protection.
S2, preparing a lower substrate: the slurry prepared in S1 was added to a plate making mold to prepare the underlying substrate.
S3, putting a graphene film: the method comprises the following steps of respectively sticking a layer of glass fiber mesh cloth on the upper surface and the lower surface of a graphene film, and then paving the glass fiber mesh cloth on a lower-layer base material, wherein the width of the graphene film is smaller than that of the lower-layer base material.
S4, preparing an upper-layer substrate: and adding the slurry prepared by the step S1 to the upper surface of the graphene film to prepare an upper-layer base material, so as to obtain a primary finished product of the wallboard.
S5, maintaining the plate: and placing the primary finished product of the wallboard into a curing chamber for curing twice.
S6, post-processing: and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Further, the modifier in S1 includes: waterproof agent, modifier, dispersible rubber powder, polypropylene fiber and glue.
Further, the modifier in S1 includes: the flexural strength of the plate added with the fly ash and the citric acid is obviously improved, and the hardened body of the material is more compact due to the filling gap effect of the fly ash particles.
Further, in S2, a flow coating method is used to prepare the lower base material, and the method specifically includes: quantitatively adding the slurry prepared by the S1 into a plate-making mould for multiple times, carrying out flow pulp leveling once when adding the slurry once, and putting a layer of alkali glass fiber mesh cloth.
Furthermore, in the process of preparing the lower layer slurry by adopting the pulp flowing coating, the slurry is added into the plate-making mould for 4-6 times.
Further, the upper substrate is prepared in the same manner as S2 in S4.
Further, the S5 wallboard primary finished product is placed into a curing chamber for curing twice, and the curing temperature for curing twice is respectively 30 ℃ and 60 ℃.
Further, the prepared slurry is poured into a fishtail-shaped storage funnel for storage, a flow control valve is arranged on the storage funnel, and the amount of the slurry added into the plate making mold is accurately adjusted through the flow control valve.
Further, the plant fiber powder comprises at least one of the following components: straw powder, wheat straw powder, rice husk powder and leaf and branch powder.
Furthermore, the time of the two times of curing is 2-4 days.
Compared with the prior art, the graphene heating wallboard provided by the invention has the following beneficial effects:
1. according to the invention, the graphene film is clamped between the upper substrate and the lower substrate, and the upper substrate and the lower substrate are integrally formed, so that the overall performance of the graphene wallboard is improved, and the problem that the two layers of wallboards are easy to fall off is solved.
2. According to the invention, the glass fiber gridding cloth is adhered to the upper layer and the lower layer of the graphene film, so that the insulating property and the fireproof property of the graphene film are improved.
Meanwhile, the invention provides a preparation method of the graphene heating wallboard, which has the following beneficial effects:
1. according to the invention, the slurry is used for preparing the upper substrate and the lower substrate through a slurry coating method, the upper substrate and the lower substrate are integrally formed, the overall performance of the wallboard is improved, and meanwhile, the graphene film is placed between the upper substrate and the lower substrate in the forming process of the upper substrate and the lower substrate, and is fixed between the upper substrate and the lower substrate without being calendered and adhered, so that the graphene film is prevented from being damaged in the calendering process.
2. The substrate-use slurry of the present invention comprises: the sulfite wood pulp uses the mixture of sulfurous acid and acid sulfite as a cooking agent, and has longer wood fiber, soft property, good toughness, high strength and good interweaving capability, and can play a role in the cross-linking of material powder.
3. The slurry used for the substrate of the present invention comprises: the magnesium oxide is industrial light-burned magnesium oxide which is mixed with a magnesium chloride aqueous solution in a certain proportion, and the mixture is gelled and hardened into the fireproof board with certain physical and mechanical properties. The board can generate heat in the chemical reaction process, the maintenance period is about 7 days, and the manufactured board has the advantages of light weight, high strength, fire resistance, heat insulation, energy conservation and environmental protection.
Detailed Description
In order that the above objects, features and advantages of the present invention will become more readily apparent, it is to be understood that the present invention may be embodied in many different forms, including but not limited to the specific embodiments described herein. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments of the present invention, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The invention provides a graphene self-heating wallboard, which comprises: substrate, graphite alkene film, surface decoration material, the substrate includes: upper substrate, lower floor's substrate, the graphite alkene film clamp is between upper substrate and lower floor's substrate, the surface decoration material laminating is in the upper surface of upper substrate still includes: glass fiber net check cloth, glass fiber net check cloth has two-layer pastes respectively graphene film's upper and lower surface, two electrode access ports are installed to graphene film lower extreme, upper substrate with lower floor's substrate integrated into one piece, the substrate is the combined material that has fire behavior, the substrate uses compound thick liquids to form through the preparation of flowing the thick liquids coating method.
Example 1
A preparation method of a graphene self-heating wallboard specifically comprises the following steps:
adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2000 g), kaolin powder (2700 g), a waterproof agent (40 g), a modifier (40 g), dispersible rubber powder (300 g), brine (3700 g), glue (560 g) and instant rubber powder (20 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mold for 5 times, performing flow leveling once by adding the slurry and putting a layer of alkaline glass fiber mesh cloth, respectively pasting a layer of glass fiber mesh cloth on the upper surface and the lower surface of a graphene film, then paving the glass fiber mesh cloth on a lower substrate, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate and preparing an upper substrate, putting a primary finished wallboard into a curing chamber for curing twice, curing the twice at 30 ℃ and 60 ℃ for 3 days respectively, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Example 2
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2000 g), kaolin powder (2700 g), a waterproof agent (40 g), a modifier (40 g), dispersible rubber powder (300 g), brine (3500 g) and instant rubber powder (20 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mold for 5 times, performing flow leveling once when adding the slurry, putting a layer of alkaline glass fiber mesh cloth, paving a layer of glass fiber mesh cloth on the upper surface and the lower surface of a graphene film, directly adding the slurry onto the graphene film according to the same method for preparing a lower substrate, preparing an upper substrate, putting a primary wallboard finished product into a curing chamber for curing twice, curing the primary wallboard finished product at 30 ℃ and 60 ℃ for 3 days respectively, cutting and curing the primary wallboard finished product, and then adding the slurry into a mold, and stirring, And sanding, sizing, laminating and slotting to obtain a finished wallboard product.
Example 3
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2200 g), kaolin powder (2500 g), a waterproofing agent (40 g), a modifier (40 g), polypropylene fibers (30 g), brine (3300 g), glue (560 g) and instant glue powder (30 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mould for 5 times, carrying out flow pulp leveling once when adding the slurry, putting a layer of alkaline glass fiber mesh cloth, paving the upper surface and the lower surface of a graphene film on a lower substrate after respectively pasting a layer of glass fiber mesh cloth, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate, preparing an upper substrate, putting a wallboard finished product into a curing chamber for curing twice, and curing for 3 days at 30 ℃ and 60 ℃ respectively, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Example 4
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2200 g), kaolin powder (2500 g), a waterproofing agent (40 g), a modifier (40 g), polypropylene fibers (300 g), brine (3200 g), glue (560 g) and instant glue powder (30 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mold for 5 times, carrying out flow pulp leveling once every time the slurry is added, putting a layer of alkaline glass fiber mesh cloth, paving the upper surface and the lower surface of a graphene film on a lower substrate after respectively pasting a layer of glass fiber mesh cloth, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate, preparing an upper substrate, putting a primary finished wallboard product into a curing chamber for curing twice, and curing the twice at 30 ℃ and 60 ℃ for 3 days respectively, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Example 5
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2000 g), kaolin powder (2700 g), fly ash (400 g), a waterproof agent (40 g), a modifier (40 g), dispersible rubber powder (300 g), brine (3700 g), glue (560 g) and instant rubber powder (20 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mold for 5 times, performing flow leveling once by adding the slurry and putting a layer of alkaline glass fiber mesh cloth, paving a layer of glass fiber mesh cloth on the upper surface and the lower surface of a graphene film, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate and preparing the upper substrate, putting a primary finished wallboard into a curing chamber for two times, curing at 30 ℃ and 60 ℃ for 3 days respectively, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Example 6
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2000 g), kaolin powder (2700 g), a waterproof agent (40 g), a modifier (40 g), dispersible rubber powder (300 g), citric acid (30 g), brine (3500 g) and instant rubber powder (30 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mold for 5 times, carrying out flow pulp leveling once every time the slurry is added, putting a layer of alkaline glass fiber mesh cloth, paving the upper surface and the lower surface of a graphene film on a lower substrate after respectively pasting a layer of glass fiber mesh cloth, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate and preparing an upper substrate, putting a primary finished wallboard product into a curing chamber for curing twice, and curing the twice at 30 ℃ and 60 ℃ for 3 days respectively, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Example 7
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2200 g), kaolin powder (2500 g), fly ash (600 g), a waterproof agent (40 g), a modifier (40 g), dispersible rubber powder (200 g), citric acid (30 g), brine (3300 g), glue (560 g) and instant rubber powder (30 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mould for 5 times, conducting one-time flow leveling and one-layer alkaline glass fiber grid cloth every time slurry is added, paving the upper surface and the lower surface of a graphene film on a lower substrate after respectively pasting one-layer glass fiber grid cloth, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate and preparing an upper substrate, placing a primary wallboard finished product into a curing chamber for curing twice, curing for 3 days at 30 ℃ and 60 ℃ respectively at two curing temperatures, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
Example 8
Adding Mgo (3600 g), plant fiber powder (2500 g), sulfite wood pulp (2200 g), kaolin powder (2500 g), a waterproofing agent (40 g), a modifier (40 g), dispersible rubber powder (300 g), citric acid (30 g), brine (3200 g), glue (560 g) and instant rubber powder (30 g) into a slurry mixing device, stirring until pasty slurry is formed, quantitatively adding the slurry into a plate-making mold for 5 times, performing flow pulp leveling once by adding the slurry and putting a layer of alkaline glass fiber mesh cloth, paving the upper surface and the lower surface of a graphene film on a lower substrate after respectively pasting a layer of glass fiber mesh cloth, directly adding the slurry on the graphene film according to the same method for preparing the lower substrate and preparing an upper substrate, putting a wallboard primary finished product into a curing chamber for two times, curing for 3 days at 30 ℃ and 60 ℃ respectively at two curing temperatures, and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
The base material obtained in the embodiment 1-4 has the flexural strength of about 12.0Mpa, the impact strength of 2.3 KJ/square meter and weak indexes; the flexural strength of the base material obtained in examples 5 to 8 in which the fly ash and the citric acid are added is remarkably improved, and the hardened material is more compact due to the filling of the gaps of the fly ash particles.
The following are the results of the sample testing on the substrate in example 7:
detecting items Standard requirements The result of the detection Single item of conclusion
Dry shrinkage rate ≤0.3% 0.16% Conform to
Wet swell ratio ≤0.3% 0.21% Conform to
Power of holding nails ≥30N/mm 109N/mm Conform to
Flexural strength ≥8.0Mpa 22Mpa Conform to
Impact strength ≥2.5KJ/㎡ 4.8KJ/㎡ Conform to
Chloride ion content ≤10% 0.092% Conform to
Water content ratio ≤8% 7.2% Conform to
The following data are the temperature and the electricity consumption of the 3 square meter plate after the power supply is connected in the example 7:
voltage of 222V-219V 222V-219V 222V-219V
Time of heating 10min 20min 30min
Temperature of 32℃ 39℃ 49℃
Energy consumption / 0.28 degree electricity 0.58 degree electricity
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. A graphene heat-generating wallboard comprising: substrate, graphite alkene film, surface decoration material, its characterized in that, the substrate includes: upper substrate, lower floor's substrate, the graphite alkene film clamp is between upper substrate and lower floor's substrate, the surface decoration material laminating is in the upper surface of upper substrate still includes: the graphene film comprises glass fiber mesh cloth, wherein the glass fiber mesh cloth is adhered with two layers of upper and lower surfaces of the graphene film respectively, two electrode access ports are installed at the lower end of the graphene film, and the upper layer substrate and the lower layer substrate are integrally formed.
2. The graphene heating wallboard according to claim 1, wherein the substrate is a composite material with fire-proof performance.
3. The preparation method of the graphene heating wallboard is characterized by comprising the following steps of:
s1, preparing slurry: adding into a mixing device: stirring magnesium oxide powder, magnesium chloride halogen liquid, sulfite wood pulp, plant fiber, kaolin powder, instant rubber powder, water and a modifier until pasty slurry is formed;
s2, preparing a lower substrate: adding the slurry prepared in the S1 into a plate-making mold to prepare a lower-layer base material;
s3, putting a graphene film: respectively sticking a layer of glass fiber mesh cloth on the upper surface and the lower surface of the graphene film, and then paving the glass fiber mesh cloth on a lower-layer base material, wherein the width of the graphene film is smaller than that of the lower-layer base material;
s4, preparing an upper-layer substrate: adding the slurry prepared in the step S1 to the upper surface of the graphene film to prepare an upper-layer base material, so as to obtain a primary finished product of the wallboard;
s5, maintaining the plate: placing the primary finished product of the wallboard into a curing room for curing for two times;
s6, post-processing: and cutting, sanding, sizing, laminating and grooving the primary finished product of the maintained wallboard to obtain a finished product of the wallboard.
4. The graphene heat-generating wallboard according to claim 3, wherein the modifier in S1 comprises: waterproof agent, modifier, dispersible rubber powder, polypropylene fiber and glue.
5. The graphene heat-generating wallboard according to claim 3, wherein the modifier in S1 comprises: fly ash, a waterproof agent, a modifier, dispersible rubber powder, citric acid and glue.
6. The graphene heating wallboard according to claim 3, wherein a lower substrate is prepared in the S2 by a slurry coating method, and the method comprises the following specific steps: quantitatively adding the slurry prepared by the S1 into a plate-making mould for multiple times, carrying out flow pulp leveling once when adding the slurry once, and putting a layer of alkali glass fiber mesh cloth.
7. The graphene heating wallboard according to claim 6, wherein in the process of preparing the lower layer slurry by using a slurry coating process, the slurry is added into a plate-making mold 4-6 times.
8. The graphene heating wallboard of claim 6, wherein the upper substrate is prepared in the same manner as in S2 in S4.
9. The graphene heating wallboard of claim 3, wherein the S5 primary wallboard product is placed in a curing chamber for curing twice, and the curing temperature of the two times is respectively 30 ℃ and 60 ℃.
10. The graphene heating wallboard of claim 3, wherein the slurry is poured into a fishtail-shaped storage funnel for storage after being prepared, the storage funnel is provided with a flow control valve, and the amount of the slurry added into the plate making mold is precisely adjusted through the flow control valve.
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