Fire-retardant fireproof decorative wallboard

Abstract

The present application belongs to the technical field of building materials, and in particular to a fire-retardant and fireproof decorative wallboard, which is directed to the problem that the existing wallboard is easy to break and deforms easily under heat, and the following scheme is proposed, which comprises a reticular steel framework, a fire-retardant and fireproof layer wrapped on the surface of the reticular steel framework, and a fireproof decorative layer adhered to the outside of the fire-retardant and fireproof layer, the reticular steel framework is subjected to sand blasting treatment in advance to increase the surface roughness, the weight parts of the raw materials of the fire-retardant and fireproof layer include 35-45 parts of cementing material, 30-40 parts of aggregate, 10-20 parts of fireproof and fire-retardant additive, and 5-15 parts of adhesion enhancer, the strength of the fire-retardant and fireproof decorative wallboard can be enhanced through the reticular steel framework, and the wallboard is not easy to break, and the materials of the cementing material, the aggregate, the fireproof and fire-retardant additive, and the adhesion enhancer are not easy to expand, in addition to the maintenance of the reticular steel framework, expansion and deformation under heat can be avoided, and the fireproof and fire-retardant capacity can be ensured.

Description

Technical Field

[0001] This invention relates to the field of building materials technology, and in particular to a flame-retardant and fireproof decorative wall panel. Background Technology

[0002] Chinese patent application number 202410355372.X discloses a flame-retardant and fireproof decorative wall panel, comprising a fireproof frame, a fireproof core board, a flame-retardant and fireproof board, and a flame-retardant decorative panel. The fireproof core board is embedded within the fireproof frame. The flame-retardant and fireproof board is respectively positioned on the upper and lower walls of the fireproof frame, abutting against the fireproof core board. The flame-retardant decorative panel is respectively positioned on the outer wall of the flame-retardant and fireproof board away from the fireproof frame. Both the flame-retardant and fireproof board and the flame-retardant decorative panel are formed using A1-grade fire-resistant calcium silicate fiberboard, calcium silicate gypsum fiberboard, or magnesium oxide fire-resistant board. A high-definition transparent PVC water-based flame-retardant decorative film is adhered to the front of the flame-retardant decorative panel, and a white PVC water-based flame-retardant film is adhered to the back. This invention effectively improves the fire resistance and flame-retardant rating of the decorative wall panel, ensuring both structural integrity and fire resistance, effectively avoiding fire safety hazards, and is easy to install and has low maintenance costs.

[0003] However, this flame-retardant and fireproof decorative wall panel also has some problems. For example, its strength is relatively weak, and it is easy to crack when it is subjected to impact or squeezing. It is impossible to produce large-sized wall panels. Moreover, the flame-retardant and fireproof performance of the flame-retardant and fireproof decorative wall panel is limited. It is easy to expand and deform after being heated, which will cause its flame-retardant and fireproof function to fail. Summary of the Invention

[0004] Based on the existing problems of wall panels being prone to cracking and deformation when heated, this invention proposes a flame-retardant and fireproof decorative wall panel.

[0005] This invention proposes a flame-retardant and fireproof decorative wall panel, comprising a mesh steel frame, a flame-retardant and fireproof layer covering the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated by sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 35-45 parts by weight of cementitious material, 30-40 parts by weight of aggregate, 10-20 parts by weight of fire-retardant and flame-retardant additives, and 5-15 parts by weight of adhesive reinforcing agent. The cementitious material includes silicate cement, high-alumina cement, modified fly ash, and silica fume; the aggregate includes quartz sand and modified expanded perlite; and the fire-retardant and flame-retardant additives include aluminum hydroxide, etc. The flame retardant is made of zinc borate and silicone. The adhesive reinforcing agents include epoxy emulsion, silane coupling agent and modified basalt fiber. The internal structure of the flame retardant and fireproof layer is a mesh steel skeleton. The mesh steel skeleton can enhance the strength of the flame retardant and fireproof decorative wall panel. It is not easy to break after impact. Moreover, the materials of cementitious materials, aggregates, fire retardant additives and adhesive reinforcing agents are not easy to expand. In addition, the mesh steel skeleton can prevent expansion and deformation after heating, thus ensuring the fire retardant capability.

[0006] Preferably, the weight ratio of silicate cement, high-alumina cement, modified fly ash, and silica fume in the cementitious material is 10:2:3:1. The silicate cement is selected as P.O52.5, and both the modified fly ash and silica fume are powders that have passed through 100 mesh. The cementitious material is beneficial to enhancing the flame retardant and fireproof capabilities.

[0007] Preferably, the modified fly ash is prepared by: obtaining fly ash, grinding it in a ball mill, adding it to deionized water at 10 times its weight, mixing it evenly, adding a silane coupling agent, stirring and reacting at 67°C for 6 hours, adding nano-silica and triethanolamine, mixing with ultrasound, stirring, vacuum filtering, and drying to obtain modified fly ash, which is beneficial to exerting the effect of modified fly ash.

[0008] Preferably, the weight ratio of quartz sand and modified expanded perlite in the aggregate is 6:1, which is beneficial to the effect of the aggregate.

[0009] Preferably, the modified expanded perlite material comprises expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: expandable perlite is obtained, and the expanded perlite is lightly ground to make its surface rougher, avoiding excessive grinding that would cause too much particle breakage. The expanded perlite is rinsed with clean water to remove surface dust and production residues, and then thoroughly dried. It is then heated briefly at a temperature of 200℃~400℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. The titanate coupling agent is added to water, mixed evenly, and then sprayed onto the expanded perlite to obtain modified expanded perlite, which is beneficial for activating the activity of expanded perlite and enhancing compatibility.

[0010] Preferably, the weight ratio of aluminum hydroxide, zinc borate, and organosilicon flame retardant in the fire-retardant additive is 10:3:1. The aluminum hydroxide is selected as 50-mesh powder, which can increase the fire resistance of the board and improve the flame retardant effect.

[0011] Preferably, the weight ratio of epoxy emulsion, silane coupling agent and modified basalt fiber in the adhesive reinforcing agent is 20:2:1, the silane coupling agent is KH-550, and the length of the modified basalt fiber is controlled between 6mm and 12mm, which is beneficial to increasing the connection strength between materials.

[0012] Preferably, the preparation method of the modified basalt fiber is as follows: basalt fiber is obtained, zinc salt, sodium hydroxide and ethylenediamine are poured into acetone solution, and then mixed and stirred at a temperature of 160℃~180℃. After uniform mixing, the basalt fiber is soaked for 2 hours, taken out and rinsed with a water gun, dried and then poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, it is taken out and heated in a heating box at 120℃ for 1 hour to obtain modified basalt fiber, which can increase the compatibility of basalt fiber with concrete materials and improve the bonding strength.

[0013] Preferably, the flame-retardant and fireproof layer material also includes a water-reducing agent, the mesh steel frame is made of welded steel mesh with longitudinal and transverse ribs of φ6-8mm, and the fireproof decorative layer is made of one of aluminum-plastic composite board, glass magnesium board with fireproof finish, or ceramic thin plate, which can enhance the strength of the wall panel and prevent cracking.

[0014] Preferably, the preparation steps of the flame-retardant and fireproof decorative wall panel are as follows:

[0015] S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, ≥15mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform.

[0016] S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete.

[0017] S3: After removing the mesh steel frame, pour 20-30mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, and gently press it to immerse it in the bottom layer of fire-retardant concrete. Continue to pour fire-retardant concrete until the total thickness is 50-80mm, and then vibrate it at high frequency to make it dense, thus obtaining the semi-finished board.

[0018] S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for ≥7 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded.

[0019] S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

[0020] The beneficial effects of this invention are:

[0021] The fire-retardant layer has an internal mesh steel frame, which enhances the strength of the fire-retardant decorative wall panel. It is not easy to break after impact. Moreover, the materials of cementitious materials, aggregates, fire-retardant additives and adhesives are not easy to expand. In addition, the mesh steel frame can prevent expansion and deformation after heating, thus ensuring fire-retardant capabilities. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating the workflow proposed in this invention. Detailed Implementation

[0023] The present invention will be further explained below with reference to specific embodiments.

[0024] Reference Figure 1 Example 1

[0025] This embodiment proposes a flame-retardant and fireproof decorative wall panel. The panel includes a mesh steel frame, a flame-retardant and fireproof layer covering the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated with sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 35 parts by weight of cementitious material, 35 parts of aggregate, 17 parts of fire-retardant additives, and 13 parts of adhesive reinforcing agent. The cementitious material includes silicate cement, high-alumina cement, modified fly ash, and silica fume. The aggregate includes quartz sand and modified expanded perlite. The fire-retardant additives include aluminum hydroxide. Zinc borate and organosilicon flame retardants, adhesive reinforcing agents including epoxy emulsion, silane coupling agent and modified basalt fiber, the weight ratio of silicate cement, high-alumina cement, modified fly ash and silica fume in the cementitious material is 10:2:3:1. The silicate cement selected is P.O52.5. Both modified fly ash and silica fume are 100-mesh powder. The preparation method of modified fly ash is as follows: obtain fly ash, pour it into a ball mill for grinding, pour it into deionized water 10 times the weight of fly ash, mix evenly, add silane coupling agent and mix, stir and react at 67℃ for 6 hours, add nano-silica and triethanolamine, perform ultrasonic mixing, stir, vacuum filter, dry to obtain modified fly ash, aggregate. The weight ratio of quartz sand and modified expanded perlite is 6:1. The modified expanded perlite material includes expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: Obtain expanded perlite, lightly grind it to make its surface rougher, avoiding excessive grinding that would cause excessive particle breakage, rinse the expanded perlite with clean water to remove surface dust and production residues, and dry it thoroughly. Heat it briefly at 300℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. Add titanate coupling agent to water, mix evenly, and spray it onto the expanded perlite to obtain modified expanded perlite. The fire retardant additive contains aluminum hydroxide, The weight ratio of zinc borate and organosilicon flame retardant is 10:3:1. Aluminum hydroxide is selected as 50-mesh powder. The weight ratio of epoxy emulsion, silane coupling agent, and modified basalt fiber in the adhesive reinforcing agent is 20:2:1. KH-550 is used as the silane coupling agent. The length of the modified basalt fiber is controlled at 8 mm. The preparation method of the modified basalt fiber is as follows: Basalt fiber is obtained, and zinc salt, sodium hydroxide, and ethylenediamine are poured into an acetone solution, followed by mixing at 170℃. After stirring and mixing evenly, basalt fibers are soaked for 2 hours, then rinsed with a water gun, dried, and poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, the fibers are removed and heated in a 120℃ heating oven for 1 hour to obtain modified basalt fibers. The flame-retardant and fireproof layer material also includes a water-reducing agent. The mesh steel skeleton uses welded steel mesh with longitudinal and transverse ribs of φ7mm. The fireproof decorative layer uses ceramic thin plates. The preparation steps of the flame-retardant and fireproof decorative wall panel are as follows:

[0026] S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, 22mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform.

[0027] S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete.

[0028] S3: After removing the mesh steel frame, pour 25mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, press lightly to immerse it in the bottom layer of fire-retardant concrete, continue to pour fire-retardant concrete until the total thickness is 50mm, and compact it with high frequency to obtain the semi-finished board.

[0029] S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for 9 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded.

[0030] S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

[0031] Reference Figure 1 Example 2

[0032] This embodiment proposes a flame-retardant and fireproof decorative wall panel. The panel includes a mesh steel frame, a flame-retardant and fireproof layer covering the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated with sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 39 parts by weight of cementitious material, 33 parts of aggregate, 16 parts of fire-retardant additives, and 12 parts of adhesive reinforcing agent. The cementitious material includes silicate cement, high-alumina cement, modified fly ash, and silica fume. The aggregate includes quartz sand and modified expanded perlite. The fire-retardant additives include aluminum hydroxide. Zinc borate and organosilicon flame retardants, adhesive reinforcing agents including epoxy emulsion, silane coupling agent and modified basalt fiber, the weight ratio of silicate cement, high-alumina cement, modified fly ash and silica fume in the cementitious material is 10:2:3:1. The silicate cement selected is P.O52.5. Both modified fly ash and silica fume are 100-mesh powder. The preparation method of modified fly ash is as follows: obtain fly ash, pour it into a ball mill for grinding, pour it into deionized water 10 times the weight of fly ash, mix evenly, add silane coupling agent and mix, stir and react at 67℃ for 6 hours, add nano-silica and triethanolamine, perform ultrasonic mixing, stir, vacuum filter, dry to obtain modified fly ash, aggregate. The weight ratio of quartz sand and modified expanded perlite is 6:1. The modified expanded perlite material includes expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: Obtain expanded perlite, lightly grind it to make its surface rougher, avoiding excessive grinding that would cause excessive particle breakage, rinse the expanded perlite with clean water to remove surface dust and production residues, and dry it thoroughly. Heat it briefly at 300℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. Add titanate coupling agent to water, mix evenly, and spray it onto the expanded perlite to obtain modified expanded perlite. The fire retardant additive contains aluminum hydroxide, The weight ratio of zinc borate and organosilicon flame retardant is 10:3:1. Aluminum hydroxide is selected as 50-mesh powder. The weight ratio of epoxy emulsion, silane coupling agent, and modified basalt fiber in the adhesive reinforcing agent is 20:2:1. KH-550 is used as the silane coupling agent. The length of the modified basalt fiber is controlled at 8 mm. The preparation method of the modified basalt fiber is as follows: Basalt fiber is obtained, and zinc salt, sodium hydroxide, and ethylenediamine are poured into an acetone solution, followed by mixing at 170℃. After stirring and mixing evenly, basalt fibers are soaked for 2 hours, then rinsed with a water gun, dried, and poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, the fibers are removed and heated in a 120℃ heating oven for 1 hour to obtain modified basalt fibers. The flame-retardant and fireproof layer material also includes a water-reducing agent. The mesh steel skeleton uses welded steel mesh with longitudinal and transverse ribs of φ7mm. The fireproof decorative layer uses ceramic thin plates. The preparation steps of the flame-retardant and fireproof decorative wall panel are as follows:

[0033] S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, 22mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform.

[0034] S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete.

[0035] S3: After removing the mesh steel frame, pour 25mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, press lightly to immerse it in the bottom layer of fire-retardant concrete, continue to pour fire-retardant concrete until the total thickness is 50mm, and compact it with high frequency to obtain the semi-finished board.

[0036] S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for 9 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded.

[0037] S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

[0038] Reference Figure 1 Example 3

[0039] This embodiment proposes a flame-retardant and fireproof decorative wall panel. The panel includes a mesh steel frame, a flame-retardant and fireproof layer covering the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated with sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 40 parts by weight of cementitious material, 35 parts of aggregate, 15 parts of fire-retardant additives, and 10 parts of adhesive reinforcing agent. The cementitious material includes silicate cement, high-alumina cement, modified fly ash, and silica fume. The aggregate includes quartz sand and modified expanded perlite. The fire-retardant additives include aluminum hydroxide. Zinc borate and organosilicon flame retardants, adhesive reinforcing agents including epoxy emulsion, silane coupling agent and modified basalt fiber, the weight ratio of silicate cement, high-alumina cement, modified fly ash and silica fume in the cementitious material is 10:2:3:1. The silicate cement selected is P.O52.5. Both modified fly ash and silica fume are 100-mesh powder. The preparation method of modified fly ash is as follows: obtain fly ash, pour it into a ball mill for grinding, pour it into deionized water 10 times the weight of fly ash, mix evenly, add silane coupling agent and mix, stir and react at 67℃ for 6 hours, add nano-silica and triethanolamine, perform ultrasonic mixing, stir, vacuum filter, dry to obtain modified fly ash, aggregate. The weight ratio of quartz sand and modified expanded perlite is 6:1. The modified expanded perlite material includes expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: Obtain expanded perlite, lightly grind it to make its surface rougher, avoiding excessive grinding that would cause excessive particle breakage, rinse the expanded perlite with clean water to remove surface dust and production residues, and dry it thoroughly. Heat it briefly at 300℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. Add titanate coupling agent to water, mix evenly, and spray it onto the expanded perlite to obtain modified expanded perlite. The fire retardant additive contains aluminum hydroxide, The weight ratio of zinc borate and organosilicon flame retardant is 10:3:1. Aluminum hydroxide is selected as 50-mesh powder. The weight ratio of epoxy emulsion, silane coupling agent, and modified basalt fiber in the adhesive reinforcing agent is 20:2:1. KH-550 is used as the silane coupling agent. The length of the modified basalt fiber is controlled at 8 mm. The preparation method of the modified basalt fiber is as follows: Basalt fiber is obtained, and zinc salt, sodium hydroxide, and ethylenediamine are poured into an acetone solution, followed by mixing at 170℃. After stirring and mixing evenly, basalt fibers are soaked for 2 hours, then rinsed with a water gun, dried, and poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, the fibers are removed and heated in a 120℃ heating oven for 1 hour to obtain modified basalt fibers. The flame-retardant and fireproof layer material also includes a water-reducing agent. The mesh steel skeleton uses welded steel mesh with longitudinal and transverse ribs of φ7mm. The fireproof decorative layer uses ceramic thin plates. The preparation steps of the flame-retardant and fireproof decorative wall panel are as follows:

[0040] S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, 22mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform.

[0041] S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete.

[0042] S3: After removing the mesh steel frame, pour 25mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, press lightly to immerse it in the bottom layer of fire-retardant concrete, continue to pour fire-retardant concrete until the total thickness is 50mm, and compact it with high frequency to obtain the semi-finished board.

[0043] S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for 9 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded.

[0044] S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

[0045] Reference Figure 1 Example 4

[0046] This embodiment proposes a flame-retardant and fireproof decorative wall panel. The panel includes a mesh steel frame, a flame-retardant and fireproof layer covering the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated with sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 40 parts by weight of cementitious material, 38 parts of aggregate, 13 parts of fire-retardant additives, and 9 parts of adhesive reinforcing agent. The cementitious material includes silicate cement, high-alumina cement, modified fly ash, and silica fume. The aggregate includes quartz sand and modified expanded perlite. The fire-retardant additives include aluminum hydroxide. Zinc borate and organosilicon flame retardants, adhesive reinforcing agents including epoxy emulsion, silane coupling agent and modified basalt fiber, the weight ratio of silicate cement, high-alumina cement, modified fly ash and silica fume in the cementitious material is 10:2:3:1. The silicate cement selected is P.O52.5. Both modified fly ash and silica fume are 100-mesh powder. The preparation method of modified fly ash is as follows: obtain fly ash, pour it into a ball mill for grinding, pour it into deionized water 10 times the weight of fly ash, mix evenly, add silane coupling agent and mix, stir and react at 67℃ for 6 hours, add nano-silica and triethanolamine, perform ultrasonic mixing, stir, vacuum filter, dry to obtain modified fly ash, aggregate. The weight ratio of quartz sand and modified expanded perlite is 6:1. The modified expanded perlite material includes expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: Obtain expanded perlite, lightly grind it to make its surface rougher, avoiding excessive grinding that would cause excessive particle breakage, rinse the expanded perlite with clean water to remove surface dust and production residues, and dry it thoroughly. Heat it briefly at 300℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. Add titanate coupling agent to water, mix evenly, and spray it onto the expanded perlite to obtain modified expanded perlite. The fire retardant additive contains aluminum hydroxide, The weight ratio of zinc borate and organosilicon flame retardant is 10:3:1. Aluminum hydroxide is selected as 50-mesh powder. The weight ratio of epoxy emulsion, silane coupling agent, and modified basalt fiber in the adhesive reinforcing agent is 20:2:1. KH-550 is used as the silane coupling agent. The length of the modified basalt fiber is controlled at 8 mm. The preparation method of the modified basalt fiber is as follows: Basalt fiber is obtained, and zinc salt, sodium hydroxide, and ethylenediamine are poured into an acetone solution, followed by mixing at 170℃. After stirring and mixing evenly, basalt fibers are soaked for 2 hours, then rinsed with a water gun, dried, and poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, the fibers are removed and heated in a 120℃ heating oven for 1 hour to obtain modified basalt fibers. The flame-retardant and fireproof layer material also includes a water-reducing agent. The mesh steel skeleton uses welded steel mesh with longitudinal and transverse ribs of φ7mm. The fireproof decorative layer uses ceramic thin plates. The preparation steps of the flame-retardant and fireproof decorative wall panel are as follows:

[0047] S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, 22mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform.

[0048] S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete.

[0049] S3: After removing the mesh steel frame, pour 25mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, press lightly to immerse it in the bottom layer of fire-retardant concrete, continue to pour fire-retardant concrete until the total thickness is 50mm, and compact it with high frequency to obtain the semi-finished board.

[0050] S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for 9 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded.

[0051] S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

[0052] Reference Figure 1 Example 5

[0053] This embodiment proposes a flame-retardant and fireproof decorative wall panel. The panel includes a mesh steel frame, a flame-retardant and fireproof layer covering the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated with sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 42 parts by weight of cementitious material, 38 parts of aggregate, 12 parts of fire-retardant additives, and 8 parts of adhesive reinforcing agent. The cementitious material includes silicate cement, high-alumina cement, modified fly ash, and silica fume. The aggregate includes quartz sand and modified expanded perlite. The fire-retardant additives include aluminum hydroxide. Zinc borate and organosilicon flame retardants, adhesive reinforcing agents including epoxy emulsion, silane coupling agent and modified basalt fiber, the weight ratio of silicate cement, high-alumina cement, modified fly ash and silica fume in the cementitious material is 10:2:3:1. The silicate cement selected is P.O52.5. Both modified fly ash and silica fume are 100-mesh powder. The preparation method of modified fly ash is as follows: obtain fly ash, pour it into a ball mill for grinding, pour it into deionized water 10 times the weight of fly ash, mix evenly, add silane coupling agent and mix, stir and react at 67℃ for 6 hours, add nano-silica and triethanolamine, perform ultrasonic mixing, stir, vacuum filter, dry to obtain modified fly ash, aggregate. The weight ratio of quartz sand and modified expanded perlite is 6:1. The modified expanded perlite material includes expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: Obtain expanded perlite, lightly grind it to make its surface rougher, avoiding excessive grinding that would cause excessive particle breakage, rinse the expanded perlite with clean water to remove surface dust and production residues, and dry it thoroughly. Heat it briefly at 300℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. Add titanate coupling agent to water, mix evenly, and spray it onto the expanded perlite to obtain modified expanded perlite. The fire retardant additive contains aluminum hydroxide, The weight ratio of zinc borate and organosilicon flame retardant is 10:3:1. Aluminum hydroxide is selected as 50-mesh powder. The weight ratio of epoxy emulsion, silane coupling agent, and modified basalt fiber in the adhesive reinforcing agent is 20:2:1. KH-550 is used as the silane coupling agent. The length of the modified basalt fiber is controlled at 8 mm. The preparation method of the modified basalt fiber is as follows: Basalt fiber is obtained, and zinc salt, sodium hydroxide, and ethylenediamine are poured into an acetone solution, followed by mixing at 170℃. After stirring and mixing evenly, basalt fibers are soaked for 2 hours, then rinsed with a water gun, dried, and poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, the fibers are removed and heated in a 120℃ heating oven for 1 hour to obtain modified basalt fibers. The flame-retardant and fireproof layer material also includes a water-reducing agent. The mesh steel skeleton uses welded steel mesh with longitudinal and transverse ribs of φ7mm. The fireproof decorative layer uses ceramic thin plates. The preparation steps of the flame-retardant and fireproof decorative wall panel are as follows:

[0054] S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, 22mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform.

[0055] S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete.

[0056] S3: After removing the mesh steel frame, pour 25mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, press lightly to immerse it in the bottom layer of fire-retardant concrete, continue to pour fire-retardant concrete until the total thickness is 50mm, and compact it with high frequency to obtain the semi-finished board.

[0057] S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for 9 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded.

[0058] S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

[0059] The wall panels obtained in Examples 1 to 5 are compared with conventional wall panels. The wall panels obtained in Examples 1 to 5 are shown in the table below:

[0060]

[0061] Bending capacity: Test standard GB / T30100-201, test conditions span 1.2m, uniformly distributed load;

[0062] Impact resistance testing standard: GB / T3810-2016;

[0063] Flammability rating: GB8624-2012;

[0064] Fire resistance limit test: GB / T9978-2008.

[0065] As can be seen from the table above, the wall panel produced by this invention has significantly improved strength and fire resistance.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flame-retardant and fireproof decorative wall panel, characterized in that, The flame-retardant and fireproof decorative wall panel comprises a mesh steel frame, a flame-retardant and fireproof layer wrapped around the surface of the mesh steel frame, and a fireproof decorative layer bonded to the outside of the flame-retardant and fireproof layer. The mesh steel frame is pre-treated by sandblasting to increase surface roughness. The flame-retardant and fireproof layer raw materials include 35 to 45 parts by weight of cementitious materials, 30 to 40 parts by weight of aggregates, 10 to 20 parts by weight of fire-retardant additives, and 5 to 15 parts by weight of adhesive reinforcing agents. The cementitious materials include silicate cement, high-alumina cement, modified fly ash, and silica fume. The aggregates include quartz sand and modified expanded perlite. The fire-retardant additives include aluminum hydroxide, zinc borate, and organosilicon flame retardants. The adhesive reinforcing agents include epoxy emulsion, silane coupling agent, and modified basalt fiber.

2. The flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The weight ratio of silicate cement, high-alumina cement, modified fly ash, and silica fume in the cementitious material is 10:2:3:

1. The silicate cement is P.O52.5, and both the modified fly ash and silica fume are 100-mesh powder.

3. The flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The modified fly ash is prepared as follows: fly ash is obtained, poured into a ball mill for grinding, and then poured into deionized water at 10 times the weight of the fly ash. After mixing evenly, a silane coupling agent is added and mixed. The mixture is stirred and reacted at 67°C for 6 hours. Nano-silica and triethanolamine are added, and the mixture is ultrasonically mixed, stirred, vacuum filtered, and dried to obtain modified fly ash.

4. The flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The weight ratio of quartz sand and modified expanded perlite in the aggregate is 6:

1.

5. A flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The modified expanded perlite comprises expanded perlite and titanate coupling agent. The preparation method of modified expanded perlite is as follows: expandable perlite is obtained, and it is lightly ground to make its surface rougher, avoiding excessive grinding that would cause too much particle breakage. The expanded perlite is rinsed with clean water to remove surface dust and production residues, and then thoroughly dried. It is then heated briefly at a temperature of 200℃~400℃ to remove the water and some organic matter adsorbed on the surface of the expanded perlite, exposing more active sites. The titanate coupling agent is added to water, mixed evenly, and then sprayed onto the expanded perlite to obtain modified expanded perlite.

6. A flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The weight ratio of aluminum hydroxide, zinc borate, and organosilicon flame retardant in the fire-retardant additive is 10:3:1, and the aluminum hydroxide is selected as 50 mesh powder.

7. A flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The weight ratio of epoxy emulsion, silane coupling agent and modified basalt fiber in the adhesive reinforcing agent is 20:2:

1. KH-550 is used as the silane coupling agent, and the length of the modified basalt fiber is controlled between 6 mm and 12 mm.

8. A flame-retardant and fireproof decorative wall panel according to claim 1, characterized in that, The method for preparing the modified basalt fiber is as follows: basalt fiber is obtained, zinc salt, sodium hydroxide and ethylenediamine are poured into acetone solution, and then mixed and stirred at a temperature of 160℃~180℃. After mixing evenly, the basalt fiber is soaked for 2 hours, taken out and rinsed with a water gun, dried and then poured into a mixture of silane coupling agent and anhydrous ethanol solution. After stirring and soaking for 1 hour, it is taken out and heated in a heating box at 120℃ for 1 hour to obtain the modified basalt fiber.

9. A flame-retardant and fireproof decorative wall panel according to claim 8, characterized in that, The flame-retardant and fireproof layer also includes a water-reducing agent. The mesh steel frame is made of welded steel mesh with longitudinal and transverse ribs of φ6-8mm. The fireproof decorative layer is made of one of the following: aluminum-plastic composite board, glass magnesium board with fireproof finish, or ceramic thin plate.

10. A flame-retardant and fireproof decorative wall panel according to claim 8, characterized in that, The preparation steps of the flame-retardant and fireproof decorative wall panel are as follows: S1: Apply release agent to the inner wall of the steel mold for the flame-retardant and fireproof decorative wall panel, leave vibration holes on the side, suspend and position the mesh steel frame in the middle of the mold, ≥15mm from the bottom surface, and fix it with a detachable bracket to ensure that the thickness of the concrete wrapping layer is uniform. S2: Obtain cementitious materials, aggregates, fire-retardant additives and binders, pour them into a mixer, add water, stir and mix evenly to obtain fire-retardant concrete. S3: After removing the mesh steel frame, pour 20-30mm thick fire-retardant concrete into the inside of the steel mold, gently vibrate to remove air bubbles in the fire-retardant concrete, place the positioned mesh steel frame in, and gently press it to immerse it in the bottom layer of fire-retardant concrete. Continue to pour fire-retardant concrete until the total thickness is 50-80mm, and then vibrate it at high frequency to make it dense, thus obtaining the semi-finished board. S4: Smooth the surface, cover with plastic film to prevent moisture evaporation, steam curing for 24 hours, spray water curing for ≥7 days after demolding, sand the surface smooth, remove floating dust, and apply epoxy resin adhesive to obtain the board to be bonded. S5: The inner side of the fireproof decorative layer is lightly corroded with a special pickling solution to form a micro-rough structure. After neutralization, cleaning and drying, the fireproof decorative layer and the board to be bonded are bonded using a hot-pressing composite process. Fireproof sealant is applied to the sides of the board, and a U-shaped metal edging strip is embedded to obtain a flame-retardant and fireproof decorative wall panel.

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