CN111734046A - Foamed ceramic composite board, preparation method thereof and wallboard for building - Google Patents

Foamed ceramic composite board, preparation method thereof and wallboard for building Download PDF

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Publication number
CN111734046A
CN111734046A CN202010556801.1A CN202010556801A CN111734046A CN 111734046 A CN111734046 A CN 111734046A CN 202010556801 A CN202010556801 A CN 202010556801A CN 111734046 A CN111734046 A CN 111734046A
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CN
China
Prior art keywords
foamed ceramic
ceramic layer
ceramic composite
layer
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010556801.1A
Other languages
Chinese (zh)
Inventor
钟德京
彭也庆
胡小强
冯唐涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinoma Jiangsu Solar Energy New Material Co ltd
Jiangxi Sinoma New Material Co ltd
Sinoma Advanced Materials Co Ltd
Original Assignee
Sinoma Jiangsu Solar Energy New Material Co ltd
Jiangxi Sinoma New Material Co ltd
Sinoma Advanced Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinoma Jiangsu Solar Energy New Material Co ltd, Jiangxi Sinoma New Material Co ltd, Sinoma Advanced Materials Co Ltd filed Critical Sinoma Jiangsu Solar Energy New Material Co ltd
Priority to CN202010556801.1A priority Critical patent/CN111734046A/en
Publication of CN111734046A publication Critical patent/CN111734046A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1271Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1285Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being foamed
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • E04B1/6125Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with protrusions on the one frontal surface co-operating with recesses in the other frontal surface
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0894Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/02Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/045Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire
    • E04F2290/047Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against fire with a bottom layer for fire insulation

Abstract

The application provides a foamed ceramic composite board, which comprises a substrate, a first foamed ceramic layer and a second foamed ceramic layer, wherein the first foamed ceramic layer and the second foamed ceramic layer are arranged on two sides of the substrate; the thickness of the foamed ceramic composite plate is 100-300 mm. The foamed ceramic composite board has the advantages of stable structure, light weight, good heat preservation, flame retardance and waterproof performance, and can effectively solve the problems that the existing wall material is poor in heat preservation, flame retardance and waterproof performance, and is easy to crack, peel and fall off. The application also provides a preparation method of the foamed ceramic composite board and a wallboard for a building.

Description

Foamed ceramic composite board, preparation method thereof and wallboard for building
Technical Field
The application relates to the technical field of building decoration materials, in particular to a foamed ceramic composite board, a preparation method thereof and a wallboard for a building.
Background
With the rapid development of the construction industry, the national requirements on environmental protection, energy conservation, heat preservation, heat insulation, water resistance and the like of the construction and housing engineering are higher and higher. In the traditional building outer wall, the wall body is mostly poured by bricks or concrete, and the outer wall needs to be subjected to heat preservation treatment. At present, the heat preservation treatment mostly adopts the procedures of fixing and coating the slurry by the heat preservation plate, the heat preservation, flame retardance and water resistance are poor, and the problems of cracking, peeling, falling off and the like are easily caused by the existing heat preservation plate. Especially for high-rise and super high-rise outer walls, the construction difficulty of heat preservation treatment of the outer walls is large, and the quality is difficult to control. Secondly, the phenomena of water seepage, wall cracking, peeling and falling off also often occur in the traditional building inner wall, and the life quality of residents is directly influenced.
Disclosure of Invention
In view of this, the application provides a foamed ceramic composite board, a preparation method thereof and a wallboard for building, wherein the foamed ceramic composite board has a stable structure and a light weight, has good heat preservation, flame retardance and waterproof performance, and can effectively solve the problems that the existing wall heat preservation board has poor heat preservation, flame retardance and waterproof performance, and is easy to crack, peel and fall off.
In a first aspect, the present application provides a foamed ceramic composite board, including a substrate, and a first foamed ceramic layer and a second foamed ceramic layer disposed on two sides of the substrate; the thickness of the foamed ceramic composite plate is 100-300 mm.
The first foamed ceramic layer, the substrate and the second foamed ceramic layer are sequentially stacked. The substrate is a substrate having a certain strength.
In the embodiment of the application, the thickness ratio of the first foamed ceramic layer, the substrate and the second foamed ceramic layer is (1-2): (2-9): (1-2).
In the embodiment of the present application, the bulk density of the substrate is 300-1000kg/m3(ii) a The base plate is made of one or more of heat insulation materials and construction waste crushed materials.
In the embodiment of the application, the one end side of base plate is equipped with the tenon, the other end side of base plate is equipped with the tongue-and-groove, the tenon with the tongue-and-groove phase-match.
In the embodiment of the application, the volume densities of the first foamed ceramic layer and the second foamed ceramic layer are respectively 300-1000kg/m3And the compressive strength of the first foamed ceramic layer and the compressive strength of the second foamed ceramic layer are respectively greater than or equal to 4 MPa.
In the embodiment of the application, the substrate is further provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs form a grid structure.
In an embodiment of the present application, the ceramic foam composite board further includes at least one through hole along a length direction of the ceramic foam composite board.
In a second aspect, the present application further provides a method for preparing a foamed ceramic composite board, comprising the following steps:
preparing a first foamed ceramic layer and a second foamed ceramic layer;
fixing the first foamed ceramic layer and the second foamed ceramic layer on a bearing plate at opposite intervals, packaging the fixing plate to form a die with an opening opposite to the bearing plate, wherein the die is provided with an accommodating space;
filling substrate raw material slurry into the accommodating space, and forming a substrate after curing, wherein the substrate is arranged between the first foamed ceramic layer and the second foamed ceramic layer;
removing the bearing plate and the fixing plate, and cutting to obtain a foamed ceramic composite plate with a preset shape;
wherein, the thickness of the foamed ceramic composite plate is 100-300 mm.
In a third aspect, the present application further provides a wallboard for building, comprising the foamed ceramic composite board of the first aspect or the foamed ceramic composite board prepared by the preparation method of the second aspect.
In the embodiment of this application, wallboard for building still includes the setting and is in the decorative layer of foaming ceramic composite sheet one side or both sides surface, the decorative layer includes one or more in interfacial agent layer, flexible putty layer and the color coating layer.
The beneficial effect of this application includes:
(1) the foamed ceramic composite board has a stable structure and light weight, has good heat preservation, flame retardance and waterproof performance, and can effectively prevent the problems of cracking, peeling, falling and the like in the using process; the foamed ceramic composite board also has a prominent sound insulation effect.
(2) The preparation method of the foamed ceramic composite board is simple to operate, high in production efficiency and outturn rate and low in cost, and can be used for large-scale industrial production, and the prepared foamed ceramic composite board is excellent in performance.
(3) The wallboard for the building comprises the foamed ceramic composite board, the wallboard for the building can be used for an external wallboard and an internal wallboard, and the wallboard for the building has the advantages of stable structure, light weight, good heat preservation, flame retardance and waterproof performance and high compressive strength, so that the wallboard for the building can be directly used as a main substrate of a wall surface and does not need to be laid on a brick wall surface or a cement wall surface; the material waste is reduced, the environment is protected, and the construction difficulty is greatly reduced.
Advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the embodiments of the present application.
Drawings
In order to more clearly explain the content of the present application, the following detailed description is given in conjunction with the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a foamed ceramic composite board 100 according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of a foamed ceramic composite panel taken along the direction A-A according to an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of a foamed ceramic composite panel taken along the direction A-A according to another embodiment of the present application;
FIG. 4 is a cross-sectional view of a foamed ceramic composite panel taken along the direction A-A according to another embodiment of the present application;
FIG. 5 is a cross-sectional view of a foamed ceramic composite panel taken along the direction A-A according to another embodiment of the present application;
fig. 6 is a schematic structural diagram of a wall panel 200 for a building according to another embodiment of the present application;
fig. 7 is a process flow diagram of a method for manufacturing a foamed ceramic composite panel according to an embodiment of the present disclosure;
fig. 8 is a schematic top view of a mold in a method for manufacturing a foamed ceramic composite board according to an embodiment of the present disclosure;
fig. 9 is a schematic process flow structure diagram of a method for manufacturing a foamed ceramic composite board according to another embodiment of the present application.
Detailed Description
While the following is a preferred embodiment of the embodiments of the present application, it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the embodiments of the present application, and such improvements and modifications are also considered to be within the scope of the embodiments of the present application.
The examples of the present application are further illustrated below in various examples. The present embodiments are not limited to the following specific examples. The present invention can be modified and implemented as appropriate within the scope of the main claim.
Unless otherwise specified, the raw materials and other chemical agents used in the examples of the present application are commercially available.
As shown in fig. 1 and 2, an embodiment of the present application provides a foamed ceramic composite panel 100, which includes a first foamed ceramic layer 10, a substrate 20, and a second foamed ceramic layer 30, which are sequentially stacked; the thickness of the foamed ceramic composite plate 100 is 100-300 mm. The first foamed ceramic layer 10 and the second foamed ceramic layer 30 are respectively disposed on both sides of the substrate 20.
In the present embodiment, the thickness of the foamed ceramic composite plate 100 refers to the thickness along the Z-axis direction in fig. 1, and the thickness of the foamed ceramic composite plate 100 is the sum of the thicknesses of the first foamed ceramic layer 10, the substrate 20, and the second foamed ceramic layer 30.
Optionally, the thickness of the foamed ceramic composite plate 100 is 120mm and 300 mm. Further, optionally, the thickness of the foamed ceramic composite plate 100 is-120 mm and 250 mm. For example, the thickness of the foamed ceramic composite panel 100 may be, but is not limited to, 120mm, 150mm, 180mm, 200mm, or 250 mm.
Optionally, the thickness ratio of the first foamed ceramic layer, the substrate, and the second foamed ceramic layer is (1-2): (2-9): (1-2). Further, optionally, the thickness ratio of the first foamed ceramic layer, the substrate, and the second foamed ceramic layer is (1.5-2): (4-5): (1.5-2).
In the embodiment of the present application, the thicknesses of the first foamed ceramic layer and the second foamed ceramic layer may be the same or different. In one embodiment, the substrate has a thickness of 60 to 200 mm. Or the thickness of the substrate is 90-200 mm. Or the thickness of the substrate is 90-120 mm. Optionally, the thickness of the first foamed ceramic layer is 10-80 mm. Or the thickness of the first foaming ceramic layer is 30-60 mm. Optionally, the thickness of the second foamed ceramic layer is 20-80 mm. Or the thickness of the second foamed ceramic layer is 35-70 mm.
In the embodiment of the present application, referring to fig. 3, a tenon 201 is disposed on one side surface of the substrate 20, and a mortise 202 is disposed on the other side surface of the substrate 20, and the tenon is matched with the mortise. The tenon 201 and the mortise 202 are also the tenon and the mortise of the foamed ceramic composite board. The plurality of foamed ceramic composite plates are spliced through the tenon 201 and the mortise 202. The plurality of foamed ceramic composite boards can be spliced on an XY plane.
In the present embodiment, one side surface 11 of the first foamed ceramic layer 10 close to the substrate 20 has a first texture, and one side surface 31 of the second foamed ceramic layer 30 close to the substrate 20 has a second texture, and the first texture and the second texture respectively include protrusions, grooves, lines or other shapes. The first texture and the second texture may be the same or different in shape and size. The first foamed ceramic layer containing the first texture or the second foamed ceramic layer containing the second texture has higher bonding strength with the substrate, so that the structural stability of the foamed ceramic composite board can be further improved.
In the embodiment of the application, the volume densities of the first foamed ceramic layer and the second foamed ceramic layer are respectively 300-1000kg/m3. Optionally, the bulk density of the first foamed ceramic layer and the second foamed ceramic layer is 400-900kg/m3. In one embodiment, the bulk density of the first foamed ceramic layer is 400-600kg/m3(ii) a The volume density of the second foamed ceramic layer is 500-900kg/m3. The first foamed ceramic layer and the second foamed ceramic layer may have the same or different bulk densities. For example, the first foamed ceramic layer has a bulk density greater than the bulk density of the second foamed ceramic layer.
Optionally, the compressive strength of the first foamed ceramic layer and the compressive strength of the second foamed ceramic layer are respectively greater than or equal to 4 MPa. Optionally, the compressive strength of the first foamed ceramic layer and the compressive strength of the second foamed ceramic layer are respectively 5-15 MPa. Further, optionally, the compressive strength of the first foamed ceramic layer and the compressive strength of the second foamed ceramic layer are respectively 8-12 MPa. This application the both sides of foamed ceramic composite board all are the outstanding foamed ceramic material of compressive strength, consequently, the foamed ceramic composite board has outstanding whole compressive strength, and is shock-resistant, long service life. Optionally, the compressive strength of the foamed ceramic composite plate is greater than 3.5 MPa.
In the embodiment of the application, the foamed ceramic composite board has outstanding heat preservation and heat insulation performance. Optionally, the heat transfer coefficient of the foamed ceramic composite plate is 0.3-0.8W/m2K. Further, optionally, the heat transfer coefficient of the foamed ceramic composite plate is 0.5-0.6W/m2K. For example, whatThe heat transfer coefficient of the foamed ceramic composite board is 0.4W/m2·K、0.45W/m2·K、0.5W/m2·K、0.55W/m2K or 0.6W/m2·K。
In the embodiment of the present application, the bulk density of the substrate is 300-1000kg/m3. Optionally, the bulk density of the substrate is 450-3. Optionally, the compressive strength of the substrate is 3-10 MPa. The base plate is made of one or more of heat insulation materials and construction waste crushed materials. In one embodiment, the substrate is made of a heat insulating material. In another embodiment, the substrate is made of crushed construction waste.
Optionally, the insulation material comprises one or more of polyphenyl particles, vitrified micro bubbles, foamed cement, fibrous materials, porous materials and expanded perlite. Wherein the fibrous material comprises one or more of mineral wool board, rock wool ribbon and glass wool; the porous material comprises one or more of polystyrene foam, polyurethane rigid foam, phenolic boards, calcium plastics and foam glass. The construction waste crushed aggregates refer to materials obtained by performing innocent and crushing treatment on construction waste; wherein the construction waste may include, but is not limited to, waste concrete, waste tiles, waste mortar pieces, waste sand, or other waste construction materials. Optionally, the material of the substrate further includes an inorganic gel material, and the inorganic gel material includes one or more of cement, gypsum and lime. And the inorganic gel material wraps the heat-insulating material, and the substrate is obtained after molding. The inorganic gel material can play a role in bonding, and the compressive strength of the substrate is greatly improved. For example, the substrate may be a heat insulation board or a construction waste pouring board.
In one embodiment, the heat insulation material consists of polyphenyl particles and foaming cement, and the volume ratio of the polyphenyl particles to the foaming cement is (5-8) to (2-5). Optionally, the foamed cement consists of cement mortar and a foaming agent; the foaming size of the foaming agent is controlled within 1 mm. For example, the volume ratio of the polyphenyl particles to the foamed cement mortar is 7: 3.
In an embodiment of the present application, the substrate is formed between the first foamed ceramic layer and the second foamed ceramic layer by casting. Because the surface of first foaming ceramic layer and second foaming ceramic layer all has cutting ripple or sawtooth structure and has a large amount of half trompil surfaces, specific surface area is 2 times of ordinary planar, forms through pouring the mode and can realize more stable and firm combination between base plate and first foaming ceramic layer and the second foaming ceramic layer.
In the embodiment of the present application, referring to fig. 4, a plurality of reinforcing ribs 203 are further disposed in the substrate 20, and the plurality of reinforcing ribs 203 form a grid structure. The reinforcing ribs 203 can further improve the strength of the substrate, thereby contributing to the improvement of the strength of the foamed ceramic composite plate. The mesh structure is adjusted based on the specific size and contour of the substrate. The material of the reinforcing rib can be metal or hard polymer.
In the present embodiment, referring to fig. 5, the foamed ceramic composite plate further includes at least one through hole 204 along the length direction of the foamed ceramic composite plate. The central axis of the through hole 204 is parallel to the first foamed ceramic layer 10 or the second foamed ceramic layer 30; the opening of the through-hole 204 is formed on the side surface of the substrate 20. The through holes of the foamed ceramic composite board can enhance the sound insulation and heat preservation effects on one hand, and can provide a larger strength adjusting space for the heat preservation base body through the hollow through holes on the other hand. Because the first foamed ceramic layer and the second foamed ceramic layer have good water resistance and strong water impermeability, the substrate has long hydration time and slow strength rise, and normal-temperature curing can be carried out through the hollow through hole channels so as to improve the strength of the substrate. In addition, the through hole can also be used as a wiring pipeline; especially when the foamed ceramic composite panel is used for interior wall panels.
Optionally, the aperture of the through hole 204 is 30-60 mm. Further, optionally, the aperture of the through hole 204 is 40-50 mm. For example, the aperture of the through hole 204 is 30, 35, 40, 50 or 60 mm. Optionally, the distance between two adjacent through holes is 10-40 mm. Optionally, the distance between two adjacent through holes is 20-30 mm. Optionally, a sum of cross-sectional areas of the at least one through-hole accounts for 3-40% of a cross-sectional area of the substrate.
In the embodiments of the present application, the cross-sectional shape of the foamed ceramic composite plate along the XY plane may be, but is not limited to, a rectangle, a diamond, a regular hexagon, a triangle, a circle, a semicircle, or a trapezoid. The cross-sectional shape of the foamed ceramic composite plate along the XY plane may also be other polygons, such as other polygons with the number of sides greater than or equal to 5. The length and width of the foamed ceramic composite plate can be adjusted based on actual requirements, for example, the length and width of the foamed ceramic composite plate is at least 200 x 100 mm.
Referring to fig. 6, in an embodiment of the present application, there is also provided a wall panel 200 for a building, wherein the wall panel 200 for a building includes a foamed ceramic composite board 210. The wallboard 200 for construction further includes a decoration layer 220 disposed on one or both surfaces of the ceramic foam composite board 200. Wherein the decorative layer 220 includes one or more of an interfacial agent layer 221, a flexible putty layer 222, and a color paint layer 223.
Because traditional external wall insulation board possesses self preservation temperature, from waterproof, light, characteristics that intensity is high simultaneously very few to lay after the outer wall surface, produce fracture, peel off and drop scheduling problem easily, still have the problem that the construction degree of difficulty is big to high-rise building. According to the wallboard for the building, the first foaming ceramic layer and the second foaming ceramic layer are respectively arranged on the two sides of the substrate, so that the wallboard for the building has the advantages of stable structure, light weight, heat preservation, flame retardance and waterproof performance; the wallboard for the building also has the characteristics of sound insulation and small deformation coefficient, and the wallboard for the building greatly solves the problems of large deformation coefficient, easy aging and easy falling of the traditional external wall insulation board, and poor insulation, flame retardance and waterproof effects; the wallboard for the building can also save a large amount of resources and reduce environmental pollution.
In addition, the traditional heat insulation treatment of the outer wall is usually carried out through a plurality of complicated processes to realize heat insulation treatment on the wall body; the multiple tedious processes probably include: (1) cleaning the wall body, and spraying wet on the wall body; (2) brushing at least one course of plain cement paste (the weight of the mixed water is 5 percent of the building adhesive); (3) leveling cement mortar; (4) coating a special adhesive; (5) paving a rock wool board (hydrophobic type); (6) adding and fixing a galvanized steel wire mesh; (7) m15 anti-cracking polymer mortar; (8) spraying outer wall paint, and spraying paint on the outer wall for two degrees at one bottom; a flexible water-resistant putty layer is arranged. The treatment of the inner wall also needs to pass through: (a) cleaning a wall body, and arranging an interface agent layer; (b) arranging a mixed mortar bonding layer (fully paving an alkali-resistant mesh cloth thereon); (c) setting a mixed mortar surface layer; (d) a flexible water-resistant putty layer, interior wall coating (such as latex paint), a bottom surface and two surfaces and the like are arranged. The wallboard for the building can be an outer wall or an inner wall, the wallboard for the building can directly replace a traditional bricklaying wall, the decorative layer in the wallboard for the building is only one or more of an interfacial agent layer, a flexible putty layer and a color coating layer, the construction is simple, the construction cost is greatly saved, and the wallboard is more environment-friendly; on one hand, the novel anti-theft door has excellent performances, and on the other hand, potential safety hazards can be prevented.
Referring to fig. 7, an embodiment of the present application further provides a method for manufacturing a foamed ceramic composite board, including the following steps:
s10, preparing a first foamed ceramic layer and a second foamed ceramic layer;
s20, oppositely and alternately fixing the first foamed ceramic layer and the second foamed ceramic layer on a bearing plate, and packaging the fixing plate to form a die with an opening opposite to the bearing plate, wherein the die is provided with an accommodating space;
s30, filling the accommodating space with substrate raw material slurry, and curing to form a substrate, wherein the substrate is arranged between the first foamed ceramic layer and the second foamed ceramic layer;
s40, detaching the bearing plate and the fixing plate, and cutting to obtain a foamed ceramic composite plate with a preset shape; wherein, the thickness of the foamed ceramic composite plate is 100-300 mm.
Alternatively, in S10, the first foamed ceramic layer and the second foamed ceramic layer may be, but not limited to, prepared by an existing preparation process of foamed ceramic. For example, a green body of the foamed ceramic is prepared from a green body raw material, sintered at a high temperature, and cut to obtain a first foamed ceramic layer or a second foamed ceramic layer. The blank raw materials comprise tailings, talc, kaolin calcium oxide, a dispersing agent and a foaming agent. The dispersant may be, but is not limited to, a ceramic dispersant, such as one or more of sodium polyphosphate, sodium silicate, and sodium carbonate. The foaming agent may be, but is not limited to, one or more of silicon carbide, coke powder, coal powder, and limestone. In the embodiment of the application, the first foamed ceramic layer or the second foamed ceramic layer is a foamed ceramic material, and has the excellent performances of low thermal conductivity, light weight, high hardness, corrosion resistance, wear resistance, water seepage resistance, easy regeneration and the like.
Optionally, in the high-temperature sintering process, the sintering temperature is 1130-1200 ℃, and the sintering time is 8-12 h. In the preparation process of the foamed ceramic, the foamed ceramic with different volume densities can be prepared by adjusting the dosage of the fluxing agent and the foaming agent, so that a first foamed ceramic layer and a second foamed ceramic layer are prepared.
Alternatively, in S20, the mold is shown in fig. 8, wherein the mold 300 includes a carrier plate 330, a first foamed ceramic layer 310 and a second foamed ceramic layer 320 fixed on the carrier plate 330, and a fixing plate 340; the first foamed ceramic layer 310 and the second foamed ceramic layer 320 are opposite to each other and spaced from each other, and the first foamed ceramic layer 310, the second foamed ceramic layer 320 and the fixing plate 340 are connected end to end and form an accommodating space 350 with an upward opening together with the carrier plate 330. The receiving space of the mold 300 is used for filling the substrate raw material slurry.
Optionally, in S30, the bonding strength between the substrate formed after curing and the first foamed ceramic layer or the second foamed ceramic layer is high, and the substrate is not easy to fall off.
Alternatively, before filling the substrate raw material slurry, a plurality of reinforcing ribs may be disposed in the receiving space, and the reinforcing ribs may be built into a grid shape according to the peripheral contour of the receiving space, and then the substrate raw material slurry is filled to obtain the substrate with the reinforcing ribs disposed therein.
Alternatively, before filling the substrate raw material slurry, at least one hollow tube may be disposed in the receiving space, and then the substrate raw material slurry is filled, and after curing, the hollow tube is pulled out, so that a substrate including at least one through hole along the length direction thereof may be obtained.
Optionally, the material of the substrate includes one or more of an insulation material and building waste particles. In one embodiment, the substrate is made of a heat insulating material. Wherein the heat insulating material comprises one or more of polyphenyl particles, vitrified micro bubbles, foaming cement, fiber materials, porous materials and expanded perlite. Wherein the fibrous material comprises one or more of mineral wool board, rock wool ribbon and glass wool; the porous material comprises one or more of polystyrene foam, polyurethane rigid foam, phenolic boards, calcium plastics and foam glass. The construction waste crushed aggregates refer to materials obtained by performing innocent and crushing treatment on construction waste; wherein the construction waste may include, but is not limited to, waste concrete, waste tiles, waste mortar pieces, waste sand, or other waste construction materials. Optionally, the material of the substrate further includes an inorganic gel material, and the inorganic gel material includes one or more of cement, gypsum and lime. And the inorganic gel material wraps the heat-insulating material, and the substrate is obtained after molding.
In one embodiment, the heat insulation material consists of polyphenyl particles and foaming cement, and the volume ratio of the polyphenyl particles to the foaming cement is (5-8) to (2-5).
Alternatively, the tenon and the mortise may be formed on both end sides of the resulting substrate by adjusting the shape or size of the fixing plate, respectively. The tenon and the mortise can also be obtained by post-processing the prepared foamed ceramic composite board.
In the embodiment of the application, the construction waste crushed aggregates are used for forming the substrate, so that the cost can be further saved, and the environment protection and energy saving are facilitated.
The preparation method of the embodiment of the application can be used for preparing the foamed ceramic composite board obtained in the previous embodiment. The specific limitations of the foamed ceramic composite plate are the same as those described above, and the description of the foamed ceramic composite plate is not repeated in this embodiment.
Another embodiment of the present application further provides a method for preparing a foamed ceramic composite board, including the following steps:
s201, preparing a plurality of foamed ceramic blocks, and sequentially arranging the foamed ceramic blocks on a bearing plate at intervals;
s202, adjusting the spacing distance between two adjacent foamed ceramic blocks, and packaging a fixing plate to form a second accommodating space with an opening facing the bearing plate between the two adjacent foamed ceramic blocks;
s203, filling substrate raw material slurry into the second accommodating space, and forming a substrate after curing, wherein the substrate is arranged between two adjacent foamed ceramic blocks;
s204, detaching the bearing plate and the fixing plate, and cutting the foamed ceramic blocks to obtain a plurality of foamed ceramic composite plates, wherein each foamed ceramic block is divided into a first foamed ceramic layer or a second foamed ceramic layer of the two foamed ceramic composite plates after being cut; wherein, the thickness of the foamed ceramic composite plate is 100-300 mm.
In the embodiment of the present application, fig. 9 is a schematic view of a process flow structure of the preparation method, wherein in fig. 9 (1), a plurality of foamed ceramic blocks 401 are sequentially arranged on a bearing plate 330 at intervals, and two adjacent foamed ceramic blocks 401 are further fixed by a fixing plate 340 to form a second accommodating space 402. After the substrate material slurry is added to 402, a substrate 403 is formed after curing. The foamed ceramic block 401 is then cut along the broken line of fig. 9 (2), resulting in a first foamed ceramic layer 404 and a second foamed ceramic layer 405, see fig. 9 (3). Here, the first foamed ceramic layer 404 and the second foamed ceramic layer 405 of one foamed ceramic block 401 after cutting are respectively used for manufacturing two foamed ceramic composite boards.
The rest of the preparation method is limited to be consistent with the description of the preparation method, and is not repeated in this embodiment.
The examples of the present application are further illustrated below by reference to several examples according to the preparation process.
Example 1
A preparation method of a foamed ceramic composite board comprises the following steps:
preparation and use of a bulk density of 450kg/m3A foamed ceramic plate having a compressive strength of 8.2MPa and a thickness of about 45mm, and after cutting, forming a first foamed ceramic layer and a second foamed ceramic layer;
preparing a mould and filling the substrate raw material slurry. Wherein the substrate raw material slurry comprises 70% volume of polyphenyl particles, less than 10mm in diameter and 30% volume of foaming cement, wherein the foaming size of a foaming agent is controlled within 1mm, and the volume density of about 550kg/m is obtained by adjusting the using amount and the foaming amount of the foaming cement3And a substrate sandwiched between the first foamed ceramic layer and the second foamed ceramic layer, the substrate having a thickness of about 110 mm.
And (3) removing the die, and cutting to obtain the foamed ceramic composite plate, wherein the thickness of the foamed ceramic composite plate is about 200 mm. The heat transfer coefficient, compressive strength, flame retardance and sound insulation performance of the prepared foamed ceramic composite board are detected according to the GB-T23451-2009 standard requirements. The result shows that the heat transfer coefficient of the foamed ceramic composite board is 0.55W/m2K, the compressive strength is 4.0MPa, the combustion performance reaches A1 standard, the fire endurance is more than 3h, and the air sound insulation is 46 dB. The foamed ceramic composite board has the characteristics of self heat preservation, self water resistance, light weight, high strength and good sound insulation effect; and the building wallboard made of the foamed ceramic composite board can be respectively used for an inner wallboard and an outer wallboard.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The foamed ceramic composite board is characterized by comprising a substrate, a first foamed ceramic layer and a second foamed ceramic layer, wherein the first foamed ceramic layer and the second foamed ceramic layer are arranged on two sides of the substrate; the thickness of the foamed ceramic composite plate is 100-300 mm.
2. The foamed ceramic composite panel according to claim 1, wherein the thickness ratio of the first foamed ceramic layer, the substrate and the second foamed ceramic layer is (1-2): (2-9): (1-2).
3. The foamed ceramic composite panel according to claim 1, wherein the substrate has a bulk density of 300-1000kg/m3(ii) a The base plate is made of one or more of heat insulation materials and construction waste crushed materials.
4. The foamed ceramic composite board according to claim 1, wherein the base board has a tenon formed on one side surface thereof and a mortise formed on the other side surface thereof, and the tenon is matched with the mortise.
5. The foamed ceramic composite panel according to claim 1, wherein the first foamed ceramic layer and the second foamed ceramic layer have a bulk density of 300-1000kg/m, respectively3And the compressive strength of the first foamed ceramic layer and the compressive strength of the second foamed ceramic layer are respectively greater than or equal to 4 MPa.
6. The foamed ceramic composite panel according to claim 1, wherein a plurality of ribs are further provided in the base plate, and the plurality of ribs form a lattice structure.
7. The foamed ceramic composite panel of claim 1 or 6, further comprising at least one through-hole running the length of the foamed ceramic composite panel.
8. The preparation method of the foamed ceramic composite board is characterized by comprising the following steps of:
preparing a first foamed ceramic layer and a second foamed ceramic layer;
fixing the first foamed ceramic layer and the second foamed ceramic layer on a bearing plate at opposite intervals, packaging the fixing plate to form a die with an opening opposite to the bearing plate, wherein the die is provided with an accommodating space;
filling substrate raw material slurry into the accommodating space, and forming a substrate after curing, wherein the substrate is arranged between the first foamed ceramic layer and the second foamed ceramic layer;
removing the bearing plate and the fixing plate to obtain a foamed ceramic composite plate with a preset shape;
wherein, the thickness of the foamed ceramic composite plate is 100-300 mm.
9. A wallboard for construction comprising the foamed ceramic composite board according to any one of claims 1 to 7 or the foamed ceramic composite board obtained by the method according to claim 8.
10. The architectural wallboard of claim 9, further comprising a decorative layer disposed on one or both surfaces of the foamed ceramic composite panel, the decorative layer comprising one or more of an interfacial agent layer, a flexible putty layer, and a color paint layer.
CN202010556801.1A 2020-06-17 2020-06-17 Foamed ceramic composite board, preparation method thereof and wallboard for building Pending CN111734046A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113183545A (en) * 2021-04-23 2021-07-30 江西中材新材料有限公司 Foamed ceramic composite board, manufacturing method thereof and foamed ceramic panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113183545A (en) * 2021-04-23 2021-07-30 江西中材新材料有限公司 Foamed ceramic composite board, manufacturing method thereof and foamed ceramic panel

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