Natural stone thermal insulation and decorative integrated board based on foamed ceramics and preparation method thereof

Abstract

The present invention relates to the technical field of thermal insulation decorative panels, and specifically to a natural stone thermal insulation decorative integrated panel based on foamed ceramics and a preparation method thereof: a base layer comprises the following raw materials in parts by weight: 25-30 parts quartz, 10-15 parts clay, 8-12 parts fly ash, 7-11 parts linking and balancing agent, 6-9 parts talc-modified conditioning agent, 5-8 parts glass microspheres, 4-7 parts flame retardant, 2-4 parts dispersant, 1-3 parts foaming agent, and 20-25 parts deionized water. The thermal insulation decorative integrated panel of the present invention is made by combining a base layer with a finishing layer. The base layer is made by combining quartz, clay, fly ash with glass microspheres, flame retardant, dispersant, and foaming agent, and the added linking and balancing agent and talc-modified conditioning agent are coordinated to achieve a balanced and improved thermal insulation, impact resistance, and fire resistance of the product. At the same time, the product has significant effects on water resistance, acid corrosion resistance, and thermal cycling stability.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal insulation decorative panels, and in particular to a natural stone thermal insulation decorative integrated panel based on foamed ceramics and a preparation method thereof. Background Art

[0002] With economic development and improved living standards, people's demands for quality of life are rising year by year. Wall insulation and decorative materials have become a new trend in recent years. Foamed ceramic insulation decorative panels, with a foamed ceramic base and decorative patterns on the surface, offer an integrated insulation and decorative effect. They are primarily used for exterior wall insulation and decoration.

[0003] In order to improve the thermal insulation performance of the existing thermal insulation decorative integrated panels, it is easy to make it difficult to balance the thermal insulation, impact resistance and fire resistance of the products. At the same time, the products have poor resistance to water, acid corrosion and cold and hot cycle stability, which limits the efficiency of product use. Summary of the Invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a natural stone thermal insulation and decorative integrated board based on foamed ceramics and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0005] The present invention solves the technical problem by adopting the following technical solutions:

[0006] The present invention provides a natural stone thermal insulation and decorative integrated board based on foamed ceramics, comprising a base layer and a finishing layer. The finishing layer has a decorative pattern on its surface for decorating the base layer. The base layer comprises the following raw materials in parts by weight:

[0007] 25-30 parts of quartz, 10-15 parts of clay, 8-12 parts of fly ash, 7-11 parts of linking and balancing agent, 6-9 parts of talc-modified conditioning agent, 5-8 parts of glass beads, 4-7 parts of flame retardant, 2-4 parts of dispersant, 1-3 parts of foaming agent, and 20-25 parts of deionized water.

[0008] Preferably, the natural stone thermal insulation decorative integrated board comprises the following raw materials in parts by weight:

[0009] 27.5 parts of quartz, 12.5 parts of clay, 10 parts of fly ash, 9 parts of linking and balancing agent, 7.5 parts of talc-modified conditioning agent, 6.5 parts of glass beads, 5.5 parts of flame retardant, 3 parts of dispersant, 2 parts of foaming agent, and 22.5 parts of deionized water.

[0010] Preferably, the dispersant is sodium lignin sulfonate; the foaming agent is silicon carbide; and the flame retardant is magnesium hydroxide.

[0011] Preferably, the preparation method of the linking and balancing agent is:

[0012] S01: adding nano-yttrium oxide to a 5% chitosan solution with a mass fraction of 2 to 5 times the total amount of nano-yttrium oxide, and then adding a 4% sodium silicate solution with a mass fraction of 5 to 8% of the total amount of nano-yttrium oxide, stirring thoroughly to obtain an additive solution;

[0013] S02: The mesoporous silica is added to a sufficient amount of a 5% by mass sulfuric acid solution and stirred thoroughly, and then washed with water and dried. The dried mesoporous silica and the additive solution are stirred thoroughly in a weight ratio of 2:5 to obtain a mesoporous silica liquid;

[0014] S03: The mesoporous silica liquid and the linking agent were mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling was completed, the mixture was filtered and dried to obtain the linking agent.

[0015] Preferably, the particle size of the mesoporous silica is between 70 and 80 nm, and the pore size is between 15 and 20 nm.

[0016] Preferably, the preparation method of the balancing agent is:

[0017] 4 to 7 parts of glass fiber, 1 to 3 parts of stearic acid and 5 to 8 parts of 5% by mass lanthanum nitrate solution are fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution are stirred in a weight ratio of 2:5 to obtain a boron nitride agent;

[0018] 3 to 5 parts of boron nitride agent are added to 5 to 8 parts of glass fiber liquid and stirred thoroughly, then filtered and dried to obtain a balancing agent.

[0019] Preferably, the preparation method of the talc-modified conditioning agent is:

[0020] S01: Stirring talc powder thoroughly in a sufficient amount of 5% by mass hydrogen peroxide solution, then washing, filtering, and drying. Stirring the dried talc powder thoroughly in a sodium citrate solution having an amount 3 to 5 times the total amount of the dried talc powder to obtain a talc liquid;

[0021] S02: 5-8 parts of talc powder liquid, 2-4 parts of silane coupling agent KH550, 1-3 parts of sodium hexametaphosphate and 1-2 parts of 5% by mass sodium lignin sulfonate solution are fully blended to obtain a talc powder blending agent;

[0022] S03: adding 3 to 5 parts of α-alumina and 2 to 3 parts of montmorillonite powder to 5 to 8 parts of dopamine hydrochloride solution, then adding 1 to 2 parts of sodium carboxymethyl cellulose and ultrasonically treating, then filtering and drying to obtain an α-alumina-montmorillonite property-adjusting hybrid agent;

[0023] S04: The talc powder conditioning agent and the α-alumina-montmorillonite conditioning hybrid agent are mixed in a weight ratio of 5:(2-3) and ball-milled at a ball-milling speed of 1000-1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a conditioning agent modified with the talc powder.

[0024] Preferably, the mass fraction of the sodium citrate solution is 2-5%; the mass fraction of the dopamine hydrochloride solution is 3-6%.

[0025] Preferably, the ultrasonic power of the ultrasonic treatment is 450-500W, and the ultrasonic time is 15-20 minutes.

[0026] The present invention also provides a method for preparing a natural stone thermal insulation and decorative integrated board based on foamed ceramics, comprising the following steps:

[0027] The raw materials in the base layer are mixed and ball-milled thoroughly at a mixing speed of 1500 r / min for 1 hour, and then put into a mold for pressing at a pressing pressure of 10 to 15 MPa for 20 minutes. After the pressing is completed, the mold is demolded to obtain a green body, which is sintered at 1150 to 1170°C for 2 hours. After the sintering is completed, the base layer is obtained, and then the surface of the base layer is decorated with a pattern to form a finishing layer to obtain the thermal insulation decorative integrated board of the present invention.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The thermal insulation and decorative integrated board of the present invention is made of a base layer and a finishing layer. The base layer is blended and coordinated by quartz, clay, fly ash, glass beads, flame retardant, dispersant and foaming agent, and the added connecting and balancing agent and the adjusting agent modified by blending talcum powder are coordinated and coordinated. The thermal insulation, impact resistance and fire resistance of the product are balanced and coordinated, and the product has significant effects on water resistance, acid corrosion and cold and hot cycle stability. The connecting and balancing agent is made by ball milling improvement of mesoporous silica liquid and connecting and balancing agent. The mesoporous silica in the mesoporous silica liquid is activated and improved by acid solution, and then stirred and adjusted by adding liquid. The nano yttrium oxide in the adding liquid is blended with chitosan solution and sodium silicate solution. The mesoporous silica has porous and high specific surface area. The active efficiency of the mesoporous silica is enhanced by the coordination of raw materials such as nano yttrium oxide in the adding liquid. At the same time, the coordination of the connecting and balancing agent is enhanced, and the performance effect of the product is improved. The glass fiber in the connecting and balancing agent is blended with lanthanum nitrate solution to enhance the glass fiber. Active effect, at the same time, the glass fiber is mixed into the pores of mesoporous silica in a needle-like structure, and is co-loaded into the system through the mesoporous silica to enhance the interface and connectivity of the system and optimize the performance effect of the product. At the same time, the coordination between boron nitride and zinc nitrate solution further coordinates the glass fiber liquid to enhance the performance stability of the system; the talc in the talc-modified conditioning agent is activated and improved by hydrogen peroxide solution, and is dispersed and blended with sodium citrate solution, and at the same time, an α-alumina-montmorillonite conditioning hybrid is coordinated. The α-alumina and montmorillonite powder in the α-alumina-montmorillonite conditioning hybrid are used as matrix materials, and reinforced talc is coordinated. Through the coordination and blending between the raw materials, flaky talc is used to coordinate the lamellar montmorillonite, and α-alumina is also coordinated, as well as the dopamine hydrochloride solution and sodium carboxymethyl cellulose. The synergistic effect of the talc-modified conditioning agent obtained by the co-coordination between the raw materials and the linking and balancing agent is enhanced, thereby further improving the performance of the product. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] The natural stone thermal insulation and decorative integrated board based on foamed ceramics of this embodiment includes a base layer and a finishing layer. The finishing layer has a decorative pattern on its surface for decorating the base layer. The base layer includes the following raw materials in parts by weight:

[0032] 25-30 parts of quartz, 10-15 parts of clay, 8-12 parts of fly ash, 7-11 parts of linking and balancing agent, 6-9 parts of talc-modified conditioning agent, 5-8 parts of glass beads, 4-7 parts of flame retardant, 2-4 parts of dispersant, 1-3 parts of foaming agent, and 20-25 parts of deionized water.

[0033] The natural stone thermal insulation decorative integrated board of this embodiment includes the following raw materials in parts by weight:

[0034] 27.5 parts of quartz, 12.5 parts of clay, 10 parts of fly ash, 9 parts of linking and balancing agent, 7.5 parts of talc-modified conditioning agent, 6.5 parts of glass beads, 5.5 parts of flame retardant, 3 parts of dispersant, 2 parts of foaming agent, and 22.5 parts of deionized water.

[0035] The dispersant in this embodiment is sodium lignin sulfonate; the foaming agent is silicon carbide; and the flame retardant is magnesium hydroxide.

[0036] The preparation method of the linking and balancing agent of this embodiment is as follows:

[0037] S01: adding nano-yttrium oxide to a 5% chitosan solution with a mass fraction of 2 to 5 times the total amount of nano-yttrium oxide, and then adding a 4% sodium silicate solution with a mass fraction of 5 to 8% of the total amount of nano-yttrium oxide, stirring thoroughly to obtain an additive solution;

[0038] S02: The mesoporous silica is added to a sufficient amount of a 5% by mass sulfuric acid solution and stirred thoroughly, and then washed with water and dried. The dried mesoporous silica and the additive solution are stirred thoroughly in a weight ratio of 2:5 to obtain a mesoporous silica liquid;

[0039] S03: The mesoporous silica liquid and the linking agent were mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling was completed, the mixture was filtered and dried to obtain the linking agent.

[0040] The particle size of the mesoporous silica in this embodiment is between 70 and 80 nm, and the pore size is between 15 and 20 nm.

[0041] The preparation method of the balancing agent of this embodiment is:

[0042] 4 to 7 parts of glass fiber, 1 to 3 parts of stearic acid and 5 to 8 parts of 5% by mass lanthanum nitrate solution are fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution are stirred in a weight ratio of 2:5 to obtain a boron nitride agent;

[0043] 3 to 5 parts of boron nitride agent are added to 5 to 8 parts of glass fiber liquid and stirred thoroughly, then filtered and dried to obtain a balancing agent.

[0044] The preparation method of the talc-modified conditioning agent of this embodiment is as follows:

[0045] S01: Stirring talc powder thoroughly in a sufficient amount of 5% by mass hydrogen peroxide solution, then washing, filtering, and drying. Stirring the dried talc powder thoroughly in a sodium citrate solution having an amount 3 to 5 times the total amount of the dried talc powder to obtain a talc liquid;

[0046] S02: 5-8 parts of talc powder liquid, 2-4 parts of silane coupling agent KH550, 1-3 parts of sodium hexametaphosphate and 1-2 parts of 5% by mass sodium lignin sulfonate solution are fully blended to obtain a talc powder blending agent;

[0047] S03: adding 3 to 5 parts of α-alumina and 2 to 3 parts of montmorillonite powder to 5 to 8 parts of dopamine hydrochloride solution, then adding 1 to 2 parts of sodium carboxymethyl cellulose and ultrasonically treating, then filtering and drying to obtain an α-alumina-montmorillonite property-adjusting hybrid agent;

[0048] S04: The talc powder conditioning agent and the α-alumina-montmorillonite conditioning hybrid agent are mixed in a weight ratio of 5:(2-3) and ball-milled at a ball-milling speed of 1000-1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a conditioning agent modified with the talc powder.

[0049] The mass fraction of the sodium citrate solution in this embodiment is 2-5%; the mass fraction of the dopamine hydrochloride solution is 3-6%.

[0050] The ultrasonic treatment in this embodiment has an ultrasonic power of 450-500 W and an ultrasonic time of 15-20 min.

[0051] A method for preparing a natural stone thermal insulation and decorative integrated board based on foamed ceramics in this embodiment includes the following steps:

[0052] The raw materials in the base layer are mixed and ball-milled thoroughly at a mixing speed of 1500 r / min for 1 hour, and then put into a mold for pressing at a pressing pressure of 10 to 15 MPa for 20 minutes. After the pressing is completed, the mold is demolded to obtain a green body, which is sintered at 1150 to 1170°C for 2 hours. After the sintering is completed, the base layer is obtained, and then the surface of the base layer is decorated with a pattern to form a finishing layer to obtain the thermal insulation decorative integrated board of the present invention.

[0053] Example 1.

[0054] The natural stone thermal insulation and decorative integrated board based on foamed ceramics of this embodiment includes a base layer and a finishing layer. The finishing layer has a decorative pattern on its surface for decorating the base layer. The base layer includes the following raw materials in parts by weight:

[0055] 25 parts of quartz, 10 parts of clay, 8 parts of fly ash, 7 parts of linking and balancing agent, 6 parts of talc-modified conditioning agent, 5 parts of glass beads, 4 parts of flame retardant, 2 parts of dispersant, 1 part of foaming agent, and 20 parts of deionized water.

[0056] The dispersant in this embodiment is sodium lignin sulfonate; the foaming agent is silicon carbide; and the flame retardant is magnesium hydroxide.

[0057] The preparation method of the linking and balancing agent of this embodiment is as follows:

[0058] S01: adding nano-yttrium oxide to a 5% chitosan solution with a mass fraction of twice the total amount of nano-yttrium oxide, and then adding a 4% sodium silicate solution with a mass fraction of 5% of the total amount of nano-yttrium oxide, stirring thoroughly to obtain an additive solution;

[0059] S02: The mesoporous silica is added to a sufficient amount of a 5% by mass sulfuric acid solution and stirred thoroughly, and then washed with water and dried. The dried mesoporous silica and the additive solution are stirred thoroughly in a weight ratio of 2:5 to obtain a mesoporous silica liquid;

[0060] S03: The mesoporous silica liquid and the linking agent were mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling was completed, the mixture was filtered and dried to obtain the linking agent.

[0061] The particle size of the mesoporous silica in this embodiment is between 70 nm and the pore size is between 15 nm.

[0062] The preparation method of the balancing agent of this embodiment is:

[0063] 4 parts of glass fiber, 1 part of stearic acid and 5 parts of 5% by mass lanthanum nitrate solution were fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution were stirred in a weight ratio of 2:5 to obtain a boron nitride agent;

[0064] 3 parts of boron nitride agent were added to 5 parts of glass fiber liquid and stirred thoroughly, then filtered and dried to obtain a balancing agent.

[0065] The preparation method of the talc-modified conditioning agent of this embodiment is as follows:

[0066] S01: Stir talc powder thoroughly in a sufficient amount of 5% by mass hydrogen peroxide solution, then wash with water, filter, and dry. Stir the dried talc powder thoroughly in a sodium citrate solution with an amount three times the total amount of the dried talc powder to obtain a talc solution;

[0067] S02: 5 parts of talc powder liquid, 2 parts of silane coupling agent KH550, 1 part of sodium hexametaphosphate and 1 part of 5% by mass sodium lignin sulfonate solution are fully blended to obtain a talc powder blending agent;

[0068] S03: adding 3 parts of α-alumina and 2 parts of montmorillonite powder to 5 parts of dopamine hydrochloride solution, then adding 1 part of sodium carboxymethyl cellulose and ultrasonically treating, then filtering and drying to obtain an α-alumina-montmorillonite property-adjusting hybrid agent;

[0069] S04: The talc powder conditioning agent and the α-alumina-montmorillonite conditioning hybrid agent are mixed in a weight ratio of 5:2 and ball-milled at a ball mill speed of 1000 r / min for 2 h. After the ball milling is completed, the mixture is filtered and dried to obtain a talc-modified conditioning agent.

[0070] The mass fraction of the sodium citrate solution in this embodiment is 2%; the mass fraction of the dopamine hydrochloride solution is 3%.

[0071] The ultrasonic treatment in this embodiment has an ultrasonic power of 450 W and an ultrasonic time of 15 min.

[0072] A method for preparing a natural stone thermal insulation and decorative integrated board based on foamed ceramics in this embodiment includes the following steps:

[0073] The raw materials in the base layer are mixed and ball-milled thoroughly at a mixing speed of 1500 r / min for 1 hour, and then put into a mold for pressing at a pressing pressure of 10 MPa for 20 minutes. After the pressing is completed, the mold is demolded to obtain a green body, which is sintered at 1150°C for 2 hours. After the sintering is completed, the base layer is obtained, and then the surface of the base layer is decorated with a pattern to form a finishing layer to obtain the thermal insulation decorative integrated board of the present invention.

[0074] Example 2.

[0075] The natural stone thermal insulation and decorative integrated board based on foamed ceramics of this embodiment includes a base layer and a finishing layer. The finishing layer has a decorative pattern on its surface for decorating the base layer. The base layer includes the following raw materials in parts by weight:

[0076] 30 parts of quartz, 15 parts of clay, 12 parts of fly ash, 11 parts of linking and balancing agent, 9 parts of talc-modified conditioning agent, 8 parts of glass beads, 7 parts of flame retardant, 4 parts of dispersant, 3 parts of foaming agent, and 25 parts of deionized water.

[0077] The dispersant in this embodiment is sodium lignin sulfonate; the foaming agent is silicon carbide; and the flame retardant is magnesium hydroxide.

[0078] The preparation method of the linking and balancing agent of this embodiment is as follows:

[0079] S01: adding nano-yttrium oxide to a 5% chitosan solution with a mass fraction of 5 times the total amount of nano-yttrium oxide, and then adding a 4% sodium silicate solution with a mass fraction of 8% of the total amount of nano-yttrium oxide, stirring thoroughly to obtain an additive solution;

[0080] S02: The mesoporous silica is added to a sufficient amount of a 5% by mass sulfuric acid solution and stirred thoroughly, and then washed with water and dried. The dried mesoporous silica and the additive solution are stirred thoroughly in a weight ratio of 2:5 to obtain a mesoporous silica liquid;

[0081] S03: The mesoporous silica liquid and the linking agent were mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling was completed, the mixture was filtered and dried to obtain the linking agent.

[0082] The particle size of the mesoporous silica in this embodiment is between 80 nm and the pore size is between 20 nm.

[0083] The preparation method of the balancing agent of this embodiment is:

[0084] 7 parts of glass fiber, 3 parts of stearic acid and 8 parts of 5% by mass lanthanum nitrate solution were fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution were stirred in a weight ratio of 2:5 to obtain a boron nitride agent;

[0085] 5 parts of boron nitride agent were added to 8 parts of glass fiber liquid and stirred thoroughly, then filtered and dried to obtain a balancing agent.

[0086] The preparation method of the talc-modified conditioning agent of this embodiment is as follows:

[0087] S01: Stir talc powder thoroughly in a sufficient amount of 5% by mass hydrogen peroxide solution, then wash with water, filter, and dry. Stir the dried talc powder thoroughly in a sodium citrate solution with an amount 5 times the total amount of the dried talc powder to obtain a talc solution;

[0088] S02: 8 parts of talc liquid, 4 parts of silane coupling agent KH550, 3 parts of sodium hexametaphosphate and 2 parts of 5% by mass sodium lignin sulfonate solution are fully blended to obtain a talc blending agent;

[0089] S03: adding 5 parts of α-alumina and 3 parts of montmorillonite powder to 8 parts of dopamine hydrochloride solution, then adding 2 parts of sodium carboxymethyl cellulose and ultrasonically treating, then filtering and drying to obtain an α-alumina-montmorillonite property-adjusting hybrid agent;

[0090] S04: The talc powder conditioning agent and the α-alumina-montmorillonite conditioning hybrid agent are mixed in a weight ratio of 5:3 and ball-milled at a ball-milling speed of 1500 r / min for 2 h. After the ball-milling is completed, the mixture is filtered and dried to obtain a conditioning agent modified with the talc powder.

[0091] The mass fraction of the sodium citrate solution in this embodiment is 5%; the mass fraction of the dopamine hydrochloride solution is 6%.

[0092] The ultrasonic treatment in this embodiment has an ultrasonic power of 500 W and an ultrasonic time of 20 min.

[0093] A method for preparing a natural stone thermal insulation and decorative integrated board based on foamed ceramics in this embodiment includes the following steps:

[0094] The raw materials in the base layer are mixed and ball-milled thoroughly at a mixing speed of 1500 r / min for 1 hour, and then put into a mold for pressing at a pressing pressure of 15 MPa for 20 minutes. After the pressing is completed, the mold is demolded to obtain a green body, which is sintered at 1170°C for 2 hours. After the sintering is completed, the base layer is obtained, and then the surface of the base layer is decorated with a pattern to form a finishing layer to obtain the thermal insulation decorative integrated board of the present invention.

[0095] Example 3.

[0096] The natural stone thermal insulation and decorative integrated board based on foamed ceramics of this embodiment includes a base layer and a finishing layer. The finishing layer has a decorative pattern on its surface for decorating the base layer. The base layer includes the following raw materials in parts by weight:

[0097] 27.5 parts of quartz, 12.5 parts of clay, 10 parts of fly ash, 9 parts of linking and balancing agent, 7.5 parts of talc-modified conditioning agent, 6.5 parts of glass beads, 5.5 parts of flame retardant, 3 parts of dispersant, 2 parts of foaming agent, and 22.5 parts of deionized water.

[0098] The dispersant in this embodiment is sodium lignin sulfonate; the foaming agent is silicon carbide; and the flame retardant is magnesium hydroxide.

[0099] The preparation method of the linking and balancing agent of this embodiment is as follows:

[0100] S01: adding nano-yttrium oxide to a 5% chitosan solution with a mass fraction of 3.5 times the total amount of nano-yttrium oxide, and then adding a 4% sodium silicate solution with a mass fraction of 6.5% of the total amount of nano-yttrium oxide, stirring thoroughly to obtain an additive solution;

[0101] S02: The mesoporous silica is added to a sufficient amount of a 5% by mass sulfuric acid solution and stirred thoroughly, and then washed with water and dried. The dried mesoporous silica and the additive solution are stirred thoroughly in a weight ratio of 2:5 to obtain a mesoporous silica liquid;

[0102] S03: The mesoporous silica liquid and the linking agent were mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling was completed, the mixture was filtered and dried to obtain the linking agent.

[0103] The particle size of the mesoporous silica in this embodiment is between 75 nm and the pore size is between 17.5 nm.

[0104] The preparation method of the balancing agent of this embodiment is:

[0105] 5.5 parts of glass fiber, 2 parts of stearic acid and 6.5 parts of 5% by mass lanthanum nitrate solution were fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution were stirred in a weight ratio of 2:5 to obtain a boron nitride agent;

[0106] 4 parts of boron nitride agent were added to 6.5 parts of glass fiber liquid and stirred thoroughly, then filtered and dried to obtain a balancing agent.

[0107] The preparation method of the talc-modified conditioning agent of this embodiment is as follows:

[0108] S01: Stir talc powder thoroughly in a sufficient amount of 5% by mass hydrogen peroxide solution, then wash with water, filter, and dry. Stir the dried talc powder thoroughly in a sodium citrate solution with a volume 4 times the total volume of the dried talc powder to obtain a talc solution;

[0109] S02: 6.5 parts of talc liquid, 3 parts of silane coupling agent KH550, 2 parts of sodium hexametaphosphate and 1.5 parts of 5% by mass sodium lignin sulfonate solution are fully blended to obtain a talc blending agent;

[0110] S03: adding 4 parts of α-alumina and 2.5 parts of montmorillonite powder to 6.5 parts of dopamine hydrochloride solution, and then adding 1.5 parts of sodium carboxymethyl cellulose for ultrasonic treatment, followed by suction filtration and drying to obtain an α-alumina-montmorillonite property-modifying hybrid agent;

[0111] S04: The talc powder conditioning agent and the α-alumina-montmorillonite conditioning hybrid agent were mixed in a weight ratio of 5:2.5 and ball-milled at a ball-milling speed of 1250 r / min for 2 h. After the ball-milling was completed, the mixture was filtered and dried to obtain a conditioning agent modified with the talc powder.

[0112] The mass fraction of the sodium citrate solution in this embodiment is 3.5%; the mass fraction of the dopamine hydrochloride solution is 4.5%.

[0113] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 470 W and an ultrasonic time of 17.5 min.

[0114] A method for preparing a natural stone thermal insulation and decorative integrated board based on foamed ceramics in this embodiment includes the following steps:

[0115] The raw materials in the base layer are mixed and ball-milled thoroughly at a mixing speed of 1500 r / min for 1 hour, and then put into a mold for pressing at a pressing pressure of 12.5 MPa for 20 minutes. After the pressing is completed, the mold is demolded to obtain a green body, which is sintered at 1160°C for 2 hours. After the sintering is completed, the base layer is obtained, and then the surface of the base layer is decorated with a pattern to form a finishing layer to obtain the thermal insulation decorative integrated board of the present invention.

[0116] Comparative Example 1.

[0117] The difference from Example 3 is that no linker and equalizer are added.

[0118] Comparative Example 2.

[0119] The difference from Example 3 is that no mesoporous silica liquid is added during the preparation of the linking and balancing agent.

[0120] Comparative Example 3.

[0121] The difference from Example 3 is that no additive liquid is added to the mesoporous silica liquid.

[0122] Comparative Example 4.

[0123] The difference from Example 3 is that no linking agent is added during the preparation of the linking agent.

[0124] Comparative Example 5.

[0125] Different from Example 3, no talc-modified toner was added.

[0126] Comparative Example 6.

[0127] The difference from Example 3 is that no talc-modifying agent is added in the preparation of the talc-modified conditioning agent.

[0128] Comparative Example 7.

[0129] The difference from Example 3 is that no talc liquid is added in the preparation of the talc blending agent.

[0130] Comparative Example 8.

[0131] The difference from Example 3 is that no α-alumina-montmorillonite hybridizing agent is added in the preparation of the talc-modified conditioning agent.

[0132] Comparative Example 9.

[0133] The difference from Example 3 is that α-alumina and sodium carboxymethyl cellulose were not added in the preparation of the α-alumina-montmorillonite property-modifying hybrid agent.

[0134] Comparative Example 10.

[0135] The difference from Example 3 is that in the preparation of the α-alumina-montmorillonite property-adjusting hybrid agent, montmorillonite powder and dopamine hydrochloride solution are replaced by water.

[0136] Conventional tests were conducted to test the thermal insulation, impact resistance, and fire resistance of Examples 1 to 3 and Comparative Examples 1 to 10. Water resistance, acid corrosion resistance, and thermal cycling stability of the products were also tested. The products were immersed in room temperature water for 12 hours, then placed in 2% hydrochloric acid mist for 6 hours, then heat treated at 65°C for 12 hours, and then treated at -5°C for 12 hours. The above constituted one cycle, and the test was repeated 10 times.

[0137]

[0138] It can be seen from Comparative Examples 1 to 10 and Examples 1 to 3 that;

[0139] The product of Example 3 has excellent thermal insulation, impact resistance and fire resistance. At the same time, the product has excellent performance stability under conditions of water resistance, acid corrosion and hot and cold cycles;

[0140] From Comparative Examples 1 to 10 and Example 3, it can be seen that the performance of the product deteriorated significantly when neither the Lianhe Hengxing agent nor the talc-modified conditioning agent was added to the product. The performance effect of the product was most significant when the Lianhe Hengxing agent was combined with the talc-modified conditioning agent.

[0141] The performance of the products without adding mesoporous silica liquid, adding additive liquid, or adding balancing agent during the preparation of Lianhe balancing agent all showed a trend of varying degrees of deterioration. The Lianhe balancing agent obtained by the method of the present invention had the most significant product performance effect. The performance of the product without adding balancing agent during the preparation of Lianhe balancing agent also showed a relatively obvious trend of deterioration.

[0142] In the preparation of the talc-modified conditioning agent, no talc conditioning agent was added, no talc liquid was added, no α-alumina-montmorillonite conditioning hybrid was added, no α-alumina and sodium carboxymethyl cellulose were added, and montmorillonite powder and dopamine hydrochloride solution were replaced by water in the preparation of the α-alumina-montmorillonite conditioning hybrid. The performance of the products showed a trend of varying degrees of deterioration. The talc-modified conditioning agent obtained by combining the α-alumina-montmorillonite conditioning hybrid obtained by the specific method of the present invention with the talc conditioning agent had the most significant product performance effect. The effects of replacing the α-alumina-montmorillonite conditioning hybrid with the talc conditioning agent by other methods were not as obvious as those of the present invention.

[0143] The present invention further explores the product performance through the preparation of the balancing agent;

[0144] The preparation method of the balancing agent is:

[0145] 5.5 parts of glass fiber, 2 parts of stearic acid and 6.5 parts of 5% by mass lanthanum nitrate solution were fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution were stirred in a weight ratio of 2:5 to obtain a boron nitride agent;

[0146] 4 parts of boron nitride agent were added to 6.5 parts of glass fiber liquid and stirred thoroughly, then filtered and dried to obtain a balancing agent.

[0147] Experimental Example 1.

[0148] The same as Example 3, except that no boron nitride agent was added during the preparation of the balancing agent.

[0149] Experimental Example 2.

[0150] Same as in Example 3, the boron nitride agent is directly replaced by the boron nitride raw material.

[0151] Experimental Example 3.

[0152] The same as Example 3, the only difference is that no glass fiber liquid is added during the preparation of the balancing agent.

[0153] Experimental Example 4.

[0154] The same as Example 3, except that no glass fiber is added to the glass fiber liquid.

[0155] Experimental Example 5.

[0156] The same as Example 3, except that stearic acid was not added to the glass fiber solution and water was used instead of the lanthanum nitrate solution.

[0157] The performance test results of Examples 1-5 are as follows:

[0158]

[0159] It can be seen from Experimental Examples 1-5 that when no boron nitride agent and no glass fiber liquid were added in the preparation of the balancing agent, the performance of the product deteriorated significantly. Secondly, when no glass fiber was added to the glass fiber liquid, the boron nitride agent was directly replaced by a boron nitride raw material, and stearic acid was not added to the glass fiber liquid, and the lanthanum nitrate solution was replaced by water, the performance of the product tended to deteriorate. Only when the boron nitride agent prepared by the method of the present invention was combined with raw materials such as the glass fiber liquid, the performance effect of the product was the most significant. When other methods were used as substitutes, the effects were not as significant as those of the present invention. In addition, the glass fiber liquid and the boron nitride agent of the present invention are unique, and the technical effects of the present invention cannot be achieved by using other methods as substitutes.

[0160] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0161] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A natural stone thermal insulation decorative integrated board based on foamed ceramics, comprising a base layer and a finishing layer, wherein the finishing layer has a decorative pattern on its surface for decorating the base layer, characterized in that: The base layer comprises the following raw materials in parts by weight: 25-30 parts of quartz, 10-15 parts of clay, 8-12 parts of fly ash, 7-11 parts of linking and balancing agent, 6-9 parts of talc-modified conditioning agent, 5-8 parts of glass microspheres, 4-7 parts of flame retardant, 2-4 parts of dispersant, 1-3 parts of foaming agent, and 20-25 parts of deionized water; The preparation method of the linking and balancing agent is as follows: S01: adding nano-yttrium oxide to a 5% chitosan solution with a mass fraction of 2 to 5 times the total amount of nano-yttrium oxide, and then adding a 4% sodium silicate solution with a mass fraction of 5 to 8% of the total amount of nano-yttrium oxide, stirring thoroughly to obtain an additive solution; S02: The mesoporous silica is added to a sufficient amount of a 5% by mass sulfuric acid solution and stirred thoroughly, and then washed with water and dried. The dried mesoporous silica and the additive solution are stirred thoroughly in a weight ratio of 2:5 to obtain a mesoporous silica liquid; S03: The mesoporous silica liquid and the linking agent are mixed in a weight ratio of 5:3 and ball-milled at a speed of 1000 r / min for 1 h. After the ball milling is completed, the mixture is filtered and dried to obtain the linking agent; The preparation method of the balancing agent is: 4-7 parts of glass fiber, 1-3 parts of stearic acid and 5-8 parts of 5% by mass lanthanum nitrate solution are fully mixed to obtain a glass fiber solution; boron nitride and 6% by mass zinc nitrate solution are stirred in a weight ratio of 2:5 to obtain a boron nitride agent; Add 3-5 parts of boron nitride agent into 5-8 parts of glass fiber liquid and stir thoroughly, then filter and dry to obtain the balancing agent; The preparation method of the talcum powder modified conditioning agent is as follows: S01: Stir talc powder thoroughly in a sufficient amount of 5% by mass hydrogen peroxide solution, then wash with water, filter, and dry. Stir the dried talc powder thoroughly in a sodium citrate solution that is 3 to 5 times the total amount of the dried talc powder to obtain a talc solution; S02: 5-8 parts of talc powder liquid, 2-4 parts of silane coupling agent KH550, 1-3 parts of sodium hexametaphosphate and 1-2 parts of 5% by mass sodium lignin sulfonate solution are fully blended to obtain a talc powder blending agent; S03: adding 3-5 parts of α-alumina and 2-3 parts of montmorillonite powder to 5-8 parts of dopamine hydrochloride solution, then adding 1-2 parts of sodium carboxymethyl cellulose and ultrasonically treating, then filtering and drying to obtain an α-alumina-montmorillonite property-modifying hybrid agent; S04: The talc powder conditioning agent and the α-alumina-montmorillonite conditioning hybrid agent are mixed in a weight ratio of 5:(2~3) and ball-milled at a ball-milling speed of 1000~1500r / min for 2h. After the ball-milling is completed, the mixture is filtered and dried to obtain a conditioning agent modified with the talc powder.

2. The natural stone thermal insulation and decorative integrated board based on foamed ceramics according to claim 1, characterized in that: The natural stone thermal insulation decorative integrated board comprises the following raw materials in parts by weight: 27.5 parts of quartz, 12.5 parts of clay, 10 parts of fly ash, 9 parts of linking and balancing agent, 7.5 parts of talc-modified conditioning agent, 6.5 parts of glass beads, 5.5 parts of flame retardant, 3 parts of dispersant, 2 parts of foaming agent, and 22.5 parts of deionized water.

3. The natural stone thermal insulation and decorative integrated board based on foamed ceramics according to claim 1, characterized in that: The dispersant is sodium lignin sulfonate; the foaming agent is silicon carbide; and the flame retardant is magnesium hydroxide.

4. The natural stone thermal insulation and decorative integrated board based on foamed ceramics according to claim 1, characterized in that: The particle size of the mesoporous silica is between 70 and 80 nm, and the pore size is between 15 and 20 nm.

5. The natural stone thermal insulation and decorative integrated board based on foamed ceramics according to claim 1, characterized in that: The mass fraction of the sodium citrate solution is 2-5%; the mass fraction of the dopamine hydrochloride solution is 3-6%.

6. The natural stone thermal insulation and decorative integrated board based on foamed ceramics according to claim 1, characterized in that: The ultrasonic treatment is performed with an ultrasonic power of 450-500 W and an ultrasonic time of 15-20 min.

7. A method for preparing a natural stone thermal insulation and decorative integrated board based on foamed ceramics according to any one of claims 1 to 6, characterized in that: The following steps are involved: The raw materials in the base layer are mixed and ball-milled thoroughly at a mixing speed of 1500r / min for 1 hour, and then put into a mold for pressing at a pressing pressure of 10~15MPa for 20 minutes. After the pressing is completed, demoulding is carried out to obtain a green body, and the green body is sintered at 1150~1170℃ for 2 hours. After the sintering is completed, the base layer is obtained, and then the surface of the base layer is decorated with a pattern to form a finishing layer to obtain a thermal insulation decorative integrated board.

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