Preparation method of high-weather-resistance moisture-proof heat-preservation decoration integrated plate

Abstract

The invention relates to a preparation method of a high-weather-resistance moisture-proof heat-preservation decoration integrated plate, and belongs to the technical field of high polymer materials. The high-weather-resistance moisture-proof heat-preservation decoration integrated plate is prepared from the following components in parts by weight: 100 to 110 parts of modified inorganic waste residue powder, 1.5 to 3 parts of titanate NDZ-201, 1 to 2 parts of silane coupling agent KH550, 40 to 45 parts of styrene-acrylic emulsion, 8 to 10 parts of organic silicon modified polyurethane, 1 to 2 parts of silane coupling agent KH570, 5 to 15 parts of absolute ethyl alcohol, 20 to 30 parts of microporous ceramic particles, 10 to 15 parts of calcined diatomite and 5 to 8 parts of 800-mesh mica powder. The coating is prepared from, by weight, 25-30 parts of acrylic polymer emulsion, 5-7 parts of polyacrylonitrile fibers, 4-6 parts of hydrophobic methyl cellulose, 1-2 parts of nano-zinc oxide, 10-15 parts of silica sol and 8-15 parts of fluorocarbon resin. The high-weatherability moisture-proof thermal-insulation decorative integrated board prepared by the invention has good water resistance and weatherability.

Description

Technical Field

[0001] This invention relates to the field of building energy-saving materials, specifically to a method for preparing a high-weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel. Background Technology

[0002] Traditional thermal insulation decorative panels often use materials such as perlite and microporous ceramics to improve thermal insulation performance, and use silane coupling agents for surface modification to improve water resistance. A common approach is to incorporate lightweight aggregates into the matrix and coat the surface with an organic resin coating to achieve both insulation and decorative functions. Some technologies also employ multi-layer composite structures, but overall, they remain primarily physical composites and fail to fundamentally solve the problems of weather resistance and moisture resistance in high-temperature and high-humidity environments.

[0003] Traditional thermal insulation decorative panels have a high water absorption rate in high humidity environments, which leads to a decline in thermal insulation performance. Traditional panels also have poor weather resistance under alternating hot and humid conditions, resulting in problems such as peeling of the surface coating and mold growth. The multi-layered composite structure inside the material traps moisture, affecting the overall moisture-proof performance and service life. At the same time, the coupling agent has poor durability in humid environments, and its failure leads to a decrease in interfacial bonding strength. Therefore, the development of a highly weather-resistant, moisture-proof, thermal insulation, and decorative integrated panel has significant practical significance and application value. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a method for preparing a high-weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel.

[0005] The objective of this invention can be achieved through the following technical solutions: A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel includes the following raw materials in parts by weight: 100-110 parts modified inorganic waste residue powder, 1.5-3 parts titanate NDZ-201, 1-2 parts silane coupling agent KH550, 40-45 parts styrene-acrylic emulsion, 8-10 parts organosilicon modified polyurethane, 1-2 parts silane coupling agent KH570, 5-15 parts anhydrous ethanol, 20-30 parts microporous ceramic particles, 10-15 parts calcined diatomaceous earth, 5-8 parts 800-mesh mica powder, 25-30 parts acrylic polymer emulsion, 5-7 parts polyacrylonitrile fiber, 4-6 parts hydrophobic methylcellulose, 1-2 parts nano zinc oxide, 10-15 parts silica sol, and 8-15 parts fluorocarbon resin. A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel specifically includes the following steps: S1. Premix modified inorganic waste residue powder, 1-2 parts of titanate NDZ-201 and silane coupling agent KH550, then add styrene-acrylic emulsion with a solid content of 48% and organosilicon modified polyurethane and stir for 30 minutes to obtain a hydrophobic matrix mixture. S2. Mix silane coupling agent KH570, 0.5-1 parts titanate NDZ-201 and anhydrous ethanol, spray the mixture onto the surface of microporous ceramic particles, calcined diatomaceous earth and mica powder, and then add acrylic polymer emulsion to mix and obtain a moisture-proof mixed liquid. S3. The hydrophobic matrix mixture, the moisture-proof functional mixture, the polyacrylonitrile fiber and the hydrophobic methylcellulose are mixed by high-speed shearing. The mixture is first treated at 40℃ for 2 hours, then at 60℃ for 2 hours, and finally at 80℃ for 1 hour. The surface is then sprayed with a mixed coating of nano zinc oxide, 30% solid content silica sol and fluorocarbon resin, and cured at 120℃ for 20 minutes to obtain a high weather-resistant, moisture-proof, heat-insulating and decorative integrated board. Furthermore, the modified inorganic waste residue powder is prepared by mixing red mud powder and urban construction waste soil at a mass ratio of 3:1; Furthermore, the organosilicon-modified polyurethane is prepared by hydroxypropyl-terminated polysiloxane and hexamethylene diisocyanate in a molar ratio of 1:1.2; Furthermore, the microporous ceramic particles are prepared by ball milling 200-mesh magnesium silicate powder with a solid content of 55%, 3% N,N'-methylenebisacrylamide and 8% corn starch, followed by molding and heating to 1250℃ at 5℃ / min for 1 hour, and then crushing and sieving to 300 micrometers. Furthermore, the calcined diatomaceous earth is pretreated by calcination at 400°C for 2 hours.

[0006] The beneficial effects of this invention are: The core innovation of this invention lies in its unique material combination and process design. It employs a modified inorganic waste residue powder synergistically premixed with dual coupling agents (titanium ester and KH550), then composited with styrene-acrylic emulsion and a specifically structured organosilicon-modified polyurethane to form a dense hydrophobic network structure. This constructs a durable hydrophobic barrier penetrating the entire board body and interface, effectively solving the core problems of high water absorption and reduced thermal insulation performance under high humidity conditions. This significantly differs from traditional single coupling agent systems and fundamentally improves the water resistance of the board body. Simultaneously, the use of industrial solid waste such as red mud and urban construction waste reduces raw material costs and increases waste utilization, achieving a balance between economic and environmental benefits. Furthermore, the surface treatment of high-porosity microporous ceramic particles and pre-calcined diatomaceous earth by spraying an ethanol-modified liquid formulated with KH570 and titanate greatly enhances the interaction between the filler and the organic polymer. The improved interfacial bonding force solves the bottleneck problem of coupling agents easily hydrolyzing and failing in humid environments in traditional processes. Furthermore, the integrated composite process, which combines a hydrophobic matrix mixture with a moisture-proof functional mixture via high-speed shear mixing, along with polyacrylonitrile fibers and hydrophobic methylcellulose, achieves uniform dispersion and synergistic effects of each functional component. This ensures mechanical properties while organically unifying moisture-proof, heat-insulating, and decorative functions, avoiding the risk of moisture retention between layers inherent in multi-layer composite structures. In addition, the gradient drying process effectively ensures slow evaporation of internal moisture to prevent internal stress cracking. The application of a fluorocarbon resin coating containing nano-zinc oxide and silica sol on the surface endows the product with excellent weather resistance, UV resistance, and mildew resistance, overcoming the defects of traditional coatings such as easy powdering and peeling. This fundamentally improves the moisture-proof and weather-resistant performance of the integrated panel in high-temperature and high-humidity environments. Detailed Implementation

[0007] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0008] Example 1: A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel, specifically including the following steps: S1. Weigh the raw materials according to the following parts by weight: 100 parts modified inorganic waste residue powder, 1.5 parts titanate NDZ-201, 1 part silane coupling agent KH550, 40 parts styrene-acrylic emulsion, 8 parts organosilicon modified polyurethane, 1 part silane coupling agent KH570, 5 parts anhydrous ethanol, 20 parts microporous ceramic particles, 10 parts calcined diatomaceous earth, 5 parts 800-mesh mica powder, 25 parts acrylic polymer emulsion, 5 parts polyacrylonitrile fiber, 4 parts hydrophobic methylcellulose, 1 part nano zinc oxide, 10 parts silica sol, and 8 parts fluorocarbon resin. Premix the modified inorganic waste residue powder, 1 part titanate NDZ-201, and silane coupling agent KH550, then add styrene-acrylic emulsion with a solid content of 48% and organosilicon modified polyurethane and stir for 30 minutes to obtain a hydrophobic matrix mixture. S2. Mix silane coupling agent KH570, 0.5 parts of titanate NDZ-201 and anhydrous ethanol, spray the mixture onto the surface of microporous ceramic particles, calcined diatomaceous earth and mica powder, and then add acrylic polymer emulsion to mix and obtain a moisture-proof mixed liquid. S3. The hydrophobic matrix mixture, the moisture-proof functional mixture, the polyacrylonitrile fiber and the hydrophobic methylcellulose are mixed by high-speed shearing. The mixture is first treated at 40℃ for 2 hours, then at 60℃ for 2 hours, and finally at 80℃ for 1 hour. The surface is then sprayed with a mixed coating of nano zinc oxide, 30% solid content silica sol and fluorocarbon resin, and cured at 120℃ for 20 minutes to obtain a high weather-resistant, moisture-proof, heat-insulating and decorative integrated board. Furthermore, the modified inorganic waste residue powder is prepared by mixing red mud powder and urban construction waste soil at a mass ratio of 3:1; Furthermore, the organosilicon-modified polyurethane is prepared by hydroxypropyl-terminated polysiloxane and hexamethylene diisocyanate in a molar ratio of 1:1.2; Furthermore, the microporous ceramic particles are prepared by ball milling 200-mesh magnesium silicate powder with a solid content of 55%, 3% N,N'-methylenebisacrylamide and 8% corn starch, followed by molding and heating to 1250℃ at 5℃ / min for 1 hour, and then crushing and sieving to 300 micrometers. Furthermore, the calcined diatomaceous earth is pretreated by calcination at 400°C for 2 hours.

[0009] Example 2: A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel, specifically including the following steps: S1. Weigh the raw materials according to the following parts by weight: 105 parts modified inorganic waste residue powder, 1.8 parts titanate NDZ-201, 1.5 parts silane coupling agent KH550, 42 parts styrene-acrylic emulsion, 9 parts organosilicon modified polyurethane, 1.5 parts silane coupling agent KH570, 10 parts ethanol, 25 parts microporous ceramic particles, 12 parts calcined diatomaceous earth, 6 parts 800-mesh mica powder, 28 parts acrylic polymer emulsion, 6 parts polyacrylonitrile fiber, 5 parts hydrophobic methylcellulose, 1.5 parts nano zinc oxide, 12 parts silica sol, and 12 parts fluorocarbon resin. Premix the modified inorganic waste residue powder, 1 part titanate NDZ-201, and silane coupling agent KH550, then add styrene-acrylic emulsion with a solid content of 48% and organosilicon modified polyurethane and stir for 30 minutes to obtain a hydrophobic matrix mixture. S2. Mix silane coupling agent KH570, 0.8 parts of titanate NDZ-201 and anhydrous ethanol, spray the mixture onto the surface of microporous ceramic particles, calcined diatomaceous earth and mica powder, and then add acrylic polymer emulsion to mix and obtain a moisture-proof mixed liquid. S3. The hydrophobic matrix mixture, the moisture-proof functional mixture, the polyacrylonitrile fiber and the hydrophobic methylcellulose are mixed by high-speed shearing. The mixture is first treated at 40℃ for 2 hours, then at 60℃ for 2 hours, and finally at 80℃ for 1 hour. The surface is then sprayed with a mixed coating of nano zinc oxide, 30% solid content silica sol and fluorocarbon resin, and cured at 120℃ for 20 minutes to obtain a high weather-resistant, moisture-proof, heat-insulating and decorative integrated board. Furthermore, the modified inorganic waste residue powder is prepared by mixing red mud powder and urban construction waste soil at a mass ratio of 3:1; Furthermore, the organosilicon-modified polyurethane is prepared by hydroxypropyl-terminated polysiloxane and hexamethylene diisocyanate in a molar ratio of 1:1.2; Furthermore, the microporous ceramic particles are prepared by ball milling 200-mesh magnesium silicate powder with a solid content of 55%, 3% N,N'-methylenebisacrylamide and 8% corn starch, followed by molding and heating to 1250℃ at 5℃ / min for 1 hour, and then crushing and sieving to 300 micrometers. Furthermore, the calcined diatomaceous earth is pretreated by calcination at 400°C for 2 hours.

[0010] Example 3: A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel, specifically including the following steps: S1. Weigh the raw materials according to the following parts by weight: 107 parts modified inorganic waste residue powder, 2 parts titanate NDZ-201, 1.5 parts silane coupling agent KH550, 43 parts styrene-acrylic emulsion, 9 parts organosilicon modified polyurethane, 1.5 parts silane coupling agent KH570, 10 parts ethanol, 25 parts microporous ceramic particles, 14 parts calcined diatomaceous earth, 7 parts 800-mesh mica powder, 28 parts acrylic polymer emulsion, 6 parts polyacrylonitrile fiber, 5 parts hydrophobic methylcellulose, 1.5 parts nano zinc oxide, 14 parts silica sol, and 12 parts fluorocarbon resin. Premix the modified inorganic waste residue powder, 1 part titanate NDZ-201, and silane coupling agent KH550, then add styrene-acrylic emulsion with a solid content of 48% and organosilicon modified polyurethane and stir for 30 minutes to obtain a hydrophobic matrix mixture. S2. Mix silane coupling agent KH570, 1 part titanate NDZ-201 and anhydrous ethanol, spray it onto the surface of microporous ceramic particles, calcined diatomaceous earth and mica powder mixture, and then add acrylic polymer emulsion to mix and obtain moisture-proof functional mixture. S3. The hydrophobic matrix mixture, the moisture-proof functional mixture, the polyacrylonitrile fiber and the hydrophobic methylcellulose are mixed by high-speed shearing. The mixture is first treated at 40℃ for 2 hours, then at 60℃ for 2 hours, and finally at 80℃ for 1 hour. The surface is then sprayed with a mixed coating of nano zinc oxide, 30% solid content silica sol and fluorocarbon resin, and cured at 120℃ for 20 minutes to obtain a high weather-resistant, moisture-proof, heat-insulating and decorative integrated board. Furthermore, the modified inorganic waste residue powder is prepared by mixing red mud powder and urban construction waste soil at a mass ratio of 3:1; Furthermore, the organosilicon-modified polyurethane is prepared by hydroxypropyl-terminated polysiloxane and hexamethylene diisocyanate in a molar ratio of 1:1.2; Furthermore, the microporous ceramic particles are prepared by ball milling 200-mesh magnesium silicate powder with a solid content of 55%, 3% N,N'-methylenebisacrylamide and 8% corn starch, followed by molding and heating to 1250℃ at 5℃ / min for 1 hour, and then crushing and sieving to 300 micrometers. Furthermore, the calcined diatomaceous earth is pretreated by calcination at 400°C for 2 hours.

[0011] Example 4: A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel, specifically including the following steps: S1. Weigh the raw materials according to the following parts by weight: 110 parts modified inorganic waste residue powder, 3 parts titanate NDZ-201, 2 parts silane coupling agent KH550, 45 parts styrene-acrylic emulsion, 10 parts organosilicon modified polyurethane, 2 parts silane coupling agent KH570, 15 parts anhydrous ethanol, 30 parts microporous ceramic particles, 15 parts calcined diatomaceous earth, 8 parts 800-mesh mica powder, 30 parts acrylic polymer emulsion, 7 parts polyacrylonitrile fiber, 6 parts hydrophobic methylcellulose, 2 parts nano zinc oxide, 15 parts silica sol, and 15 parts fluorocarbon resin. Premix the modified inorganic waste residue powder, 2 parts titanate NDZ-201, and silane coupling agent KH550, then add styrene-acrylic emulsion with a solid content of 48% and organosilicon modified polyurethane and stir for 30 minutes to obtain a hydrophobic matrix mixture. S2. Mix silane coupling agent KH570, 1 part titanate NDZ-201 and anhydrous ethanol, spray it onto the surface of microporous ceramic particles, calcined diatomaceous earth and mica powder mixture, and then add acrylic polymer emulsion to mix and obtain moisture-proof functional mixture. S3. The hydrophobic matrix mixture, the moisture-proof functional mixture, the polyacrylonitrile fiber and the hydrophobic methylcellulose are mixed by high-speed shearing. The mixture is first treated at 40℃ for 2 hours, then at 60℃ for 2 hours, and finally at 80℃ for 1 hour. The surface is then sprayed with a mixed coating of nano zinc oxide, 30% solid content silica sol and fluorocarbon resin, and cured at 120℃ for 20 minutes to obtain a high weather-resistant, moisture-proof, heat-insulating and decorative integrated board. Furthermore, the modified inorganic waste residue powder is prepared by mixing red mud powder and urban construction waste soil at a mass ratio of 3:1; Furthermore, the organosilicon-modified polyurethane is prepared by hydroxypropyl-terminated polysiloxane and hexamethylene diisocyanate in a molar ratio of 1:1.2; Furthermore, the microporous ceramic particles are prepared by ball milling 200-mesh magnesium silicate powder with a solid content of 55%, 3% N,N'-methylenebisacrylamide and 8% corn starch, followed by molding and heating to 1250℃ at 5℃ / min for 1 hour, and then crushing and sieving to 300 micrometers. Furthermore, the calcined diatomaceous earth is pretreated by calcination at 400°C for 2 hours.

[0012] Comparative Example 1: This comparative example is an ultrafine graphite composite water-based release agent. The difference between this example and Example 3 is that no titanate ester was added, but all other aspects are the same.

[0013] Comparative Example 2: This comparative example is a commercially available integrated thermal insulation and decorative panel processed using ordinary spraying technology.

[0014] Performance testing: The thermal insulation and decorative integrated panels prepared in Examples 1-4 and Comparative Examples 1-2 were cut into standard test sizes. A mixture of paraffin wax and rosin in a 1:1 mass ratio was used to seal the edges and back of the panels. Half of the panel area was then immersed in room temperature tap water and 1% sulfuric acid. Observations were maintained until blistering, powdering, and peeling occurred on the surface. The test results are shown in Table 1 below. Table 1

[0015] As can be seen from the test data in Table 1, the high weather resistance, moisture-proof, heat-insulating and decorative integrated panel of the present invention has good water resistance. Table 1 also shows that the high weather resistance, moisture-proof, heat-insulating and decorative integrated panel of the present invention has weather resistance and extends service life.

[0016] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel, characterized in that, Specifically, the following steps are included: S1. Weigh the raw materials according to the following parts by weight: 100-110 parts modified inorganic waste residue powder, 1.5-3 parts titanate NDZ-201, 1-2 parts silane coupling agent KH550, 40-45 parts styrene-acrylic emulsion, 8-10 parts organosilicon modified polyurethane, 1-2 parts silane coupling agent KH570, 5-15 parts anhydrous ethanol, 20-30 parts microporous ceramic particles, 10-15 parts calcined diatomaceous earth, 5-8 parts 800-mesh mica powder, 25-30 parts acrylic polymer emulsion, 5-7 parts polyacrylonitrile fiber, 4-6 parts hydrophobic methylcellulose, 1-2 parts nano zinc oxide, 10-15 parts silica sol, and 8-15 parts fluorocarbon resin. Modified inorganic waste residue powder, 1-2 parts of titanate NDZ-201 and silane coupling agent KH550 are premixed, and then 48% solid content styrene-acrylic emulsion and organosilicon modified polyurethane are added and stirred for 30 minutes to obtain a hydrophobic matrix mixture. S2. Mix silane coupling agent KH570, 0.5-1 parts titanate NDZ-201 and ethanol, spray the mixture onto the surface of microporous ceramic particles, calcined diatomaceous earth and mica powder, and then add acrylic polymer emulsion to mix and obtain a moisture-proof mixed liquid. S3. The hydrophobic matrix mixture, the moisture-proof functional mixture, the polyacrylonitrile fiber and the hydrophobic methylcellulose are mixed by high-speed shearing. The mixture is first treated at 40℃ for 2 hours, then at 60℃ for 2 hours, and finally at 80℃ for 1 hour. The surface is then sprayed with a mixed coating of nano zinc oxide, 30% solid content silica sol and fluorocarbon resin, and cured at 120℃ for 20 minutes to obtain a high weather-resistant, moisture-proof, heat-insulating and decorative integrated board.

2. The method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel according to claim 1, characterized in that, In step S1, the modified inorganic waste residue powder is prepared by mixing red mud powder and urban construction waste soil at a mass ratio of 3:

1.

3. The method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel according to claim 1, characterized in that, In step S1, the organosilicon-modified polyurethane is prepared by hydroxypropyl-terminated polysiloxane and hexamethylene diisocyanate in a molar ratio of 1:1.

2.

4. The method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel according to claim 1, characterized in that, In step S2, the microporous ceramic particles are prepared by ball milling 200-mesh magnesium silicate powder with a solid content of 55%, 3% N,N'-methylenebisacrylamide and 8% corn starch, followed by molding and heating to 1250℃ at 5℃ / min for 1 hour, and then crushing and sieving to 300 micrometers.

5. The method for preparing a high weather-resistant, moisture-proof, heat-insulating, and decorative integrated panel according to claim 1, characterized in that, In step S2, the calcined diatomaceous earth is pretreated by calcining at 400℃ for 2 hours.

Images