CN112982870A - Keel reinforced heat-insulation decorative composite board and preparation method thereof - Google Patents
Keel reinforced heat-insulation decorative composite board and preparation method thereof Download PDFInfo
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- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings 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
- E04F13/0875—Coverings 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
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
- E04F13/0816—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements the additional fastening elements extending into the back side of the covering elements
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- E—FIXED CONSTRUCTIONS
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Abstract
The invention provides a keel reinforced heat-insulation decorative composite board with good bonding performance, long service life, light weight and stable product quality and a preparation method thereof. A preparation method of a keel reinforced heat-insulation decorative composite board comprises the following steps: s1, forming keel grooves in the back of the heat insulation layer, and placing keels for fixation; s2, placing a reinforcing net on the front side of the heat-insulating layer, placing anchoring parts above the keel at intervals of 40 +/-5 cm, and fixing the anchoring parts and the keel by using fastening parts; s3, preparing an enhanced bonding layer; and S4, maintaining the prepared sample at room temperature for more than 3 days to obtain a keel reinforced heat-preservation decorative composite board product. This fossil fragments enhancement mode heat preservation decorative composite board product is whole one-time press forming, and the fossil fragments are installed among the heat preservation, and anchor assembly, reinforcing net and fastener are fixed in the heat preservation, get up heat preservation and finish coat bonding through the reinforcing tie coat, and whole adhesion strength is stronger, and the security performance is reliable.
Description
Technical Field
The invention relates to a heat-insulation decorative composite board and a preparation method thereof, in particular to a keel-reinforced heat-insulation decorative composite board and a preparation method thereof, and belongs to the field of building heat insulation.
Background
With the development of economic society, energy-saving and environment-friendly technology is widely applied to buildings, the requirements on decoration and heat preservation of external walls of the buildings are higher and higher, and the heat preservation decoration composite board which is bonded with the heat preservation decoration composite board in the heat preservation of the external walls generally comprises a heat preservation layer, a bonding layer, a veneer layer, anchoring pieces and the like. The inorganic heat-insulation decorative composite board and the organic heat-insulation decorative composite board are divided according to different heat-insulation layers, and the organic heat-insulation decorative composite board has a good heat-insulation effect, but is poor in fireproof performance and cannot be effectively applied to various buildings. And inorganic type heat preservation decoration composite sheet is first appear the adhesion weak easily, and the finish coat separates with the heat preservation, and the life-span is shorter, and second need slot fixedly at the finish coat, then higher to the requirement on finish coat, the material waste easily appears, and the cost is higher.
Disclosure of Invention
The invention aims to provide a keel reinforced heat-insulation decorative composite board which has the advantages of good bonding performance, long service life, light weight and stable product quality.
The invention also aims to provide a preparation method of the keel reinforced heat-insulation decorative composite board.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a preparation method of a keel reinforced heat-insulation decorative composite board comprises the following steps:
s1, forming keel grooves in the back of the heat insulation layer, and placing keels for fixation;
s2, placing a reinforcing net on the front side of the heat-insulating layer, placing anchoring parts above the keel at intervals of 40 +/-5 cm, and fixing the anchoring parts and the keel by using fastening parts;
s3, preparing a reinforced bonding layer: uniformly stirring and coagulating the pearlite sand and the isocyanate according to a formula, uniformly mixing the residual raw materials such as polyether polyol, epoxy resin, expandable graphite and the like, then mixing the pearlite sand and the isocyanate, putting the mixture into a stirrer to be stirred for 10-30 seconds, pouring the mixture into the surface of a heat preservation layer to be uniformly paved, paving a decorative surface layer above a reinforced bonding layer formed by the mixture, pressing the reinforced bonding layer into a thickness of 5mm +/-2 mm by using a press, and maintaining the pressure for 3-6 minutes to obtain a sample;
the reinforced bonding layer mixture comprises the following components in parts by weight: 38-50 parts of pearlife with the diameter of less than 3mm, 15-24 parts of isocyanate, 15-18 parts of polyether polyol, 1-3 parts of epoxy resin, 6-8 parts of industrial paraffin, 1-3 parts of fly ash, 2-5 parts of cement, 2.4-4 parts of expandable graphite, 2.0-4.0 parts of tris (2-chloroisopropyl) phosphate, a proper amount of pigment and a proper amount of auxiliary agent;
and S4, maintaining the prepared sample at room temperature for more than 3 days to obtain a keel reinforced heat-preservation decorative composite board product.
The heat-insulating layer can be made of various boards with heat-insulating function, such as inorganic heat-insulating boards, and inorganic lightweight aggregate heat-insulating boards are preferred.
The production process of the existing heat-insulation decorative composite board comprises the following steps: the bottom layer uses the heat preservation, and the heat preservation has inorganic heated board or organic heated board generally to select, pastes the surface course through adhesive at the heat preservation surface, and the material of surface course selects inorganic panel or polymer mortar, later to surface course surface spraying or bonding finish coat, forms heat preservation decoration composite sheet.
Compared with the prior production process of the keel reinforced heat-insulation decorative composite board, the preparation method of the keel reinforced heat-insulation decorative composite board has the following advantages: 1. the product adopts a one-step compression molding process, the heat-insulating layer and the decorative surface layer are directly compounded through the keel, the anchoring piece and the reinforcing bonding layer, the production process is simpler, two-time spraying is not needed, and the raw materials are directly assembled. 2. The production process of the product utilizes the reinforced bonding layer to replace a common adhesive, and has the advantages of strong bonding force, flat panel surface and convenient cutting. 3. The keel and the anchoring part connected to the inner layer of the heat-preservation decorative composite board are added, the whole board is connected into a whole, the connection between layers is firm, the construction safety of the product is high, and the decorative surface layer and the heat-preservation layer cannot be peeled off.
Preferably, the auxiliary agent comprises 0.5 part of anti-crack fiber, 0.1 part of surfactant, 1.0 part of aluminum hydroxide, 0.53 part of catalyst, 0.15 part of retarder, 0.1 part of mildew inhibitor, 0.1 part of anti-hydrolysis stabilizer and 0.12 part of heat stabilizer.
Preferably, the density of the keel reinforced heat-insulation decorative composite board product is 300-600 kg/m3。
Preferably, the keel-reinforced heat-insulation decorative composite board product comprises a decorative surface layer and a heat-insulation layer, wherein the decorative surface layer is connected with the heat-insulation layer through a reinforcing bonding layer, an anchoring part and a reinforcing net are arranged in the reinforcing bonding layer, a keel and a fastening part are arranged in the heat-insulation layer, and the keel is connected with the anchoring part through the fastening part.
Preferably, the keel is formed by an aluminum alloy section or a hot-dip galvanized steel sheet, and the cross section of the keel is C-shaped, U-shaped, rectangular or U-shaped with folded edges.
Preferably, the wall thickness of the keel is 1-2.5 mm, and the width of the keel is 20-35 mm.
Preferably, the finishing layer is a coating metal plate or a coating finishing composite layer taking cement fiber paper as a base material.
Preferably, the reinforcing net is a mesh cloth or a wire mesh.
Preferably, the anchoring piece is a plastic plate, and the thickness of the anchoring piece is 0.8-1.2 mm.
A keel reinforced heat-insulating decorative composite board product obtained according to the preparation method.
Compared with the prior art, the invention has the beneficial effects that:
1. this fossil fragments enhancement mode heat preservation decorative composite board product is whole one-time press forming, and the fossil fragments are installed among the heat preservation, and anchor assembly, reinforcing net and fastener are fixed in the heat preservation, get up heat preservation and finish coat bonding through the reinforcing tie coat, and whole adhesion strength is stronger, and the security performance is reliable.
2. The fastener links together fossil fragments, heat preservation, reinforcing tie coat through mechanical action, and stable in structure and closely combine makes the anti rupture strength of heat preservation decoration composite sheet have more obvious promotion.
3. The product has light weight, is formed by one-time compression molding, and has small overall deformation coefficient, good dimensional stability and high compressive strength.
4. Compared with the calcium silicate composite board, the insulating layer is directly connected by the reinforced bonding layer to be combined into a whole; the calcium silicate composite board needs glue to connect the calcium silicate veneer, the heat insulation layer and the veneer layer with each other, so that the cost is high, the calcium silicate veneer and the heat insulation layer are easy to separate, the weight is relatively heavy, and the density is 1200-1500 kg/m3The density of the product is 300-600 kg/m3The advantages are obvious.
5. The product reinforcing bonding layer can replace a calcium silicate board, so that the product performance is greatly improved. The performance of the calcium silicate board is determined by JC/T564.1-2008' first part of fiber reinforced calcium silicate board: asbestos-free calcium silicate board and JC/T564.2-2008 < second part of fiber reinforced calcium silicate board: chrysotile calcium silicate board. The comparison of the performance parameters is shown in Table 1.
TABLE 1
6. The product is easy to construct on the wall, the keel is directly buckled, so that the product can be put on the wall, and meanwhile, the production process is simple, the cost is low, and the product is safe and reliable.
7. Compared with the product performance specified in JG/J350-.
TABLE 2
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a view of the interior of a keel reinforced insulation decorative composite board product of the invention;
FIG. 2 is an enlarged view of a portion C of FIG. 1;
fig. 3 is a flow chart of the preparation method of the keel reinforced heat-insulation decorative composite board.
In the figure: 1. the building block comprises a decorative surface layer, 2, a heat insulation layer, 3, a reinforcing bonding layer, 4, an anchoring piece, 5, keels, 6, a fastening piece, 7 and a reinforcing net.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific examples in conjunction with the accompanying drawings. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components or devices in the following examples are, unless otherwise specified, standard parts or parts known to those skilled in the art, the structure and principle of which are known to those skilled in the art through technical manuals or through routine experimentation.
Polyether polyol, hydroxyl value: 349(KOHmg/g), viscosity: 2500. + -. 50 MPa.s, Tantawa polyurethane GmbH;
anti-crack fiber, type: 3mm, Yao Xin (Shanghai) fiber products, Inc.;
expandable graphite, type: expansion factor 400 times, Qingdao Meiterui graphite Co., Ltd;
catalyst, triethylene diamine, Changzhou ZhuoZhi Chuang Polymer materials science and technology Limited;
retarder: citric acid, tin-free military chemical technology ltd;
hydrolysis-resistant stabilizers: n, N' -bis (2, 6-diisopropylphenyl) carbodiimide, Beijing Baizai chemical Co.
Example 1:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, its structure is shown in figure 1 and figure 2, including finish coat 1 and heat preservation 2, be equipped with reinforcing tie coat 3 between finish coat 1 and the heat preservation 2, finish coat 1 and heat preservation 2 are connected through reinforcing tie coat 3, be equipped with anchor assembly 4 and reinforcing net 7 in the reinforcing tie coat 3, reinforcing net 7 is below anchor assembly 4, reinforcing net 7 openly meets with heat preservation 2, keel groove is seted up at the 2 backs of heat preservation, keel inslot is equipped with fossil fragments 5, fossil fragments 5 pass through fastener 6 and connect anchor assembly 4.
The facing layer 1 adopts a coating facing composite layer with cement fiber paper as a base material, namely, the surface of the cement fiber paper is coated with a coating as the facing layer. The heat-insulating layer 2 is an inorganic heat-insulating plate. The anchor 4 is a disc-shaped plastic plate. The keel 5 is made of a U-shaped aluminum alloy section keel. The fastener 6 is a self-tapping screw. The reinforcing net 7 adopts mesh cloth.
As shown in fig. 3, the preparation method of the keel reinforced thermal insulation decorative composite board comprises the following steps:
s1, forming keel grooves in the back of an inorganic heat-insulation board, and placing keels for fixation;
s2, placing grid cloth on the front face of the inorganic heat-insulation board, placing plastic anchoring pieces above the keels at intervals of 40cm, and fixing the anchoring pieces and the keels by using self-tapping screws;
s3, preparing a reinforced bonding layer: uniformly stirring and coagulating the pearlite sand and the isocyanate according to a formula, uniformly mixing the residual raw materials such as polyether polyol, epoxy resin, expandable graphite and the like, then mixing the pearlite sand and the isocyanate, putting the mixture into a stirrer to be stirred for 10-30 seconds, pouring the mixture onto the surface of an inorganic heat-insulating plate to uniformly lay the mixture, laying a coating veneer composite layer taking cement fiber paper as a base material above a reinforced bonding layer formed by the mixture, pressing the reinforced bonding layer into a thickness of about 5mm by using a 10-ton press, and maintaining the pressure for 5 minutes;
the reinforced bonding layer mixture comprises the following components in parts by weight: 38 parts of pearlife with the diameter of less than 3mm, 24 parts of isocyanate, 18 parts of polyether polyol, 3 parts of epoxy resin, 6 parts of industrial paraffin, 1 part of fly ash, 2 parts of cement, 0.5 part of anti-crack fiber, 0.1 part of surfactant, 2.4 parts of expandable graphite, 1.0 part of aluminum hydroxide, 2.0 parts of tris (2-chloroisopropyl) phosphate, 0.53 part of catalyst, 0.15 part of retarder, 0.1 part of mildew preventive, 0.1 part of hydrolysis resistant stabilizer, 0.12 part of heat stabilizer and 1 part of pigment.
And S4, maintaining the prepared sample at room temperature for 3 days to obtain a keel reinforced heat-preservation decorative composite board product.
The performance parameters of the enhanced bond coat produced in this example were: thickness of 5mm and weight per unit area of about 2.5kg/m2The tensile bonding strength is 0.3MPa, the heat conductivity coefficient is 0.044W/(m.K), the breaking strength is 3.9MPa, the weight is light, the service life is long, the dimensional stability is strong, and the product is obviously superior to the existing various products.
The invention relates to a method for installing a keel reinforced heat-insulation decorative composite board, which comprises the following steps: the keel is connected with the built-in hardware through bonding, then the keel is fixedly installed in a wall anchoring mode, and the joints are filled with foam materials and then are sewn through silicone adhesive.
The product has simple production process, safe and reliable product performance and lower production cost.
Example 2:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is with embodiment 1, the difference lies in that heat preservation 2 adopts 30mm thick, the coefficient of heat conductivity is 0.058W (m.K) inorganic light aggregate fire prevention heated board, and fossil fragments wall thickness is 2.5mm, fossil fragments width 35mm, anchor member thickness 1.2 mm.
Through detection, the performance parameters of the keel reinforced heat-insulation decorative composite board product prepared by the embodiment are as follows:
1. the heat conductivity coefficient is 0.049W/(m.K), which is obviously superior to the prior various products.
2. The product has a thickness of 35mm and a mass per unit area of 6kg/m2The unit area mass of the calcium silicate composite board with the same thickness is about 16kg/m2The unit area quality is reduced more, and the production, the transportation and the installation are more convenient.
3. The tensile bonding strength of the product can reach 0.3MPa, and the strength of a common calcium silicate insulation board is 0.1 MPa.
4. The surface of the product does not absorb water, the water absorption rate is less than 1.0%, the water absorption rate of the surface of the calcium silicate plate is between 30 and 60%, and the water absorption rate is greatly reduced.
5. The drawing force of the anchoring piece is 1.2kN, and the drawing force of the common composite plate is more than or equal to 0.6 kN.
Example 3:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is with embodiment 1, the difference lies in that heat preservation 2 adopts the polyurethane board that 30mm is thick, fossil fragments wall thickness 1mm, fossil fragments width 20mm, anchor member thickness 0.8mm, product unit area quality is 4kg/m2。
Example 4:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is the same as embodiment 1, and the difference is that fossil fragments adopt the I-shaped, and half card is inboard at the heat preservation, and half usable bonding mortar is fixed in the wall body in the other, and the construction is safer. The standard requires that the bending load is not less than the weight of the self plate, and the test composite plate is not bent by adding a weight of 50 kg.
Example 5:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is with embodiment 1, and the difference is that heat preservation 2 adopts 60mm thick inorganic light aggregate heated board, and reinforcing net 7 adopts the wire netting.
Example 6:
the specific structure of the keel reinforced heat-insulation decorative composite board is the same as that of the embodiment 1, except that the heat-insulation layer 2 is an inorganic light aggregate heat-insulation board with the thickness of 100mm, the proportion of isocyanate and polyether polyol for reinforcing a bonding layer is changed into 2:1, the strength of the reinforcing bonding layer reaches 5MPa, the strength of common polyurethane is only 300kPa, and the bending load is not lower than the weight of the self board.
Example 7:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is with embodiment 1, the difference is that 1.2mm thick coating aluminum plate is adopted on finish coat 1, and aluminum plate surface is more smooth and neat, and bending resistance load bears self weight and does not warp.
Example 8:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is with embodiment 1, and the difference lies in adding double-deck net cloth among the reinforcing tie coat, and bottom layer net cloth arranges unchangeably, arranges two-thirds back at reinforcing tie coat raw materials, places second layer net cloth, puts into other one-third's raw materials again, press forming.
The flexural strength of the reinforced bonding layer prepared by the embodiment is 8.5 MPa.
Example 9:
the utility model provides a fossil fragments enhancement mode heat preservation decorative composite board, concrete structure is with embodiment 1, the difference lies in:
the reinforced bonding layer mixture comprises the following components in parts by weight: 50 parts of pearl sand with the diameter of less than 1.2mm, 15 parts of isocyanate, 15 parts of polyether polyol, 1 part of epoxy resin, 8 parts of industrial paraffin, 1 part of fly ash, 2 parts of cement, 0.5 part of anti-crack fiber, 0.1 part of surfactant, 2.4 parts of expandable graphite, 1.0 part of aluminum hydroxide, 2.0 parts of tris (2-chloroisopropyl) phosphate, 0.53 part of catalyst, 0.15 part of retarder, 0.1 part of mildew preventive, 0.1 part of anti-hydrolysis stabilizer, 0.12 part of heat stabilizer and 1 part of pigment.
The performance parameters of the enhanced bond coat produced in this example were: weight per unit area of about 2kg/m2The tensile bonding strength is 0.16MPa, the thermal conductivity is 0.046W/(m.K), and the breaking strength is 2.5 MPa.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. A preparation method of a keel reinforced heat-insulation decorative composite board is characterized by comprising the following steps:
s1, forming keel grooves in the back of the heat-insulating layer, and placing keels for fixation;
s2, placing a reinforcing net on the front surface of the heat-insulating layer, placing anchoring parts above the keel at intervals of 40 +/-5 cm, and fixing the anchoring parts and the keel by using fasteners;
s3 preparation of the reinforced bonding layer: uniformly stirring and coagulating the pearlite sand and the isocyanate according to a formula, uniformly mixing the residual raw materials such as polyether polyol, epoxy resin, expandable graphite and the like, then mixing the pearlite sand and the isocyanate, putting the mixture into a stirrer to be stirred for 10-30 seconds, pouring the mixture into the surface of a heat preservation layer to be uniformly paved, paving a decorative surface layer above a reinforced bonding layer formed by the mixture, pressing the reinforced bonding layer into a thickness of 5mm +/-2 mm by using a press, and maintaining the pressure for 3-6 minutes to obtain a sample;
the reinforced bonding layer mixture comprises the following components in parts by weight: 38-50 parts of pearlife with the diameter of less than 3mm, 15-24 parts of isocyanate, 15-18 parts of polyether polyol, 1-3 parts of epoxy resin, 6-8 parts of industrial paraffin, 1-3 parts of fly ash, 2-5 parts of cement, 2.4-4 parts of expandable graphite, 2.0-4.0 parts of tris (2-chloroisopropyl) phosphate, a proper amount of pigment and a proper amount of auxiliary agent;
and S4, curing the prepared sample at room temperature for more than 3 days to obtain the keel reinforced heat-preservation decorative composite board product.
2. The method of claim 1, wherein: the auxiliary agent comprises 0.5 part of anti-crack fiber, 0.1 part of surfactant, 1.0 part of aluminum hydroxide, 0.53 part of catalyst, 0.15 part of retarder, 0.1 part of mildew preventive, 0.1 part of anti-hydrolysis stabilizer and 0.12 part of heat stabilizer.
3. The method of claim 1, wherein: the density of the keel reinforced heat-insulation decorative composite board product is 300-600 kg/m3。
4. The method of claim 1, wherein: the keel-reinforced heat-insulation decorative composite board product comprises a decorative surface layer and a heat-insulation layer, wherein the decorative surface layer and the heat-insulation layer are connected through a reinforcing bonding layer, anchoring parts and a reinforcing net are arranged in the reinforcing bonding layer, keels and fasteners are arranged in the heat-insulation layer, and the keels are connected with the anchoring parts through the fasteners.
5. The method of claim 1, wherein: the keel is formed by an aluminum alloy section or a hot-dip galvanized steel plate, and the cross section of the keel is C-shaped, U-shaped, rectangular or U-shaped with folded edges.
6. The method of claim 1, wherein: the wall thickness of the keel is 1-2.5 mm, and the width of the keel is 20-35 mm.
7. The method of claim 1, wherein: the finish coat is a coating metal plate or a coating finish composite layer taking cement fiber paper as a base material.
8. The method of claim 1, wherein: the reinforcing net is a mesh cloth or a wire mesh.
9. The method of claim 1, wherein: the anchoring piece is a plastic plate, and the thickness of the anchoring piece is 0.8-1.2 mm.
10. A keel reinforced thermal insulation decorative composite board product obtained by the preparation method according to any one of claims 1-9.
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