Corrosion-resistant wear-resistant self-cleaning thermal insulation tile surface diaphragm material and preparation method thereof

Abstract

The invention discloses a corrosion-resistant wear-resistant self-cleaning thermal insulation tile surface diaphragm material and a preparation method thereof. The preparation raw materials of the heat insulation tile surface diaphragm material comprise the following components: 100 parts of polyether-ether-ketone fine powder, 10-20 parts of polytetrafluoroethylene fine powder, 20-40 parts of glass fibers, 5-10 parts of modified silicon dioxide aerogel powder, 0.1-1 part of a crystallization nucleating agent and 0.1-1 part of a lubricating additive. According to the heat insulation tile surface diaphragm material, the polyether-ether-ketone is used as a base material, the polyether-ether-ketone has excellent temperature resistance, wear resistance, chemical corrosion resistance, ultraviolet resistance and self-lubricating property, and meanwhile, the polytetrafluoroethylene fine powder is introduced into a polyether-ether-ketone base body, so that the wear resistance of the diaphragm material is further improved; meanwhile, the hydrophilicity of the diaphragm material is also reduced by polytetrafluoroethylene, and the surface of the introduced modified silicon dioxide aerogel material is subjected to hydrophobization treatment; and through the synergistic effect of the two components, a hydrophobic micro-nano structure is constructed in the diaphragm, and the surface of the heat insulation tile is endowed with good self-cleaning performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat insulation tile surface material, in particular to a corrosion-resistant and wear-resistant self-cleaning heat insulation tile surface diaphragm material. BACKGROUND

[0002] Aluminum alloy heat insulation tile is a building material combining the strength of metal material and the heat insulation performance. The existing aluminum alloy heat insulation tile is disclosed in Chinese Utility Model Patent CN221187715U, with the patent name of composite heat insulation tile, and the authorization announcement date of June 21, 2024. The above-mentioned composite heat insulation tile is provided with a first high polymer layer and a first heat insulation material layer on the outer layer, and the first high polymer layer and the first heat insulation material layer can give the heat insulation tile good decorative property, corrosion resistance and heat insulation property.

[0003] However, in harsh environments such as extreme high temperature environment, high altitude area, chemical industry park, coastal environment and severe sandstorm environment, the aluminum alloy heat insulation tile is easily polluted and corroded by domestic sewage, dust, organic dye, mold and microorganism. These pollutants are easily attached to the outer surface of high-rise buildings, bridges and other buildings, affecting the aesthetic property of the buildings. The long-term corrosion of the pollutants will affect the durability and functionality of the buildings, greatly increasing the cost of cleaning the buildings and the cost required for maintaining the buildings. In addition, in severe sandstorm environment, such as the northwest region of China, the air is often affected by sandstorms, and the sand and gravel in the air can easily damage the surface coating of the aluminum alloy heat insulation tile.

[0004] The existing heat insulation tile still has deficiencies in corrosion resistance, wear resistance and self-cleaning property, and therefore, it is necessary to develop a heat insulation tile surface diaphragm material with more excellent corrosion resistance, wear resistance and self-cleaning property. SUMMARY

[0005] The present application aims to solve the deficiencies of the prior art, and to provide a heat insulation tile surface diaphragm material with more excellent corrosion resistance, wear resistance and self-cleaning property.

[0006] Another object of the present application is to provide a preparation method of the corrosion-resistant, wear-resistant and self-cleaning heat insulation tile surface diaphragm material.

[0007] The object of the present application is achieved as follows: A corrosion-resistant, wear-resistant and self-cleaning heat insulation tile surface diaphragm material, characterized in that the preparation raw material of the heat insulation tile surface diaphragm material comprises the following components: 100 parts of polyether ether ketone fine powder, 10-20 parts of polytetrafluoroethylene fine powder, 20-40 parts of glass fiber, 5-10 parts of modified silica aerogel powder, 0.1-1 part of crystallization nucleating agent, Lubricating aids 0.1-1 parts.

[0008] The surface diaphragm material of the corrosion-resistant wear-resistant self-cleaning heat insulation tile is based on polyether ether ketone as the matrix material, polyether ether ketone has excellent temperature resistance, wear resistance, chemical corrosion resistance, ultraviolet resistance and self-lubricity, and meets the use of the product in harsh environments (such as extreme high-temperature weather, northwest gale and sand environment, serious corrosion gas chemical industry park and high-altitude area, etc.); that is, the environmental adaptability of the heat insulation tile is significantly improved; at the same time, polytetrafluoroethylene fine powder is introduced into the polyether ether ketone matrix, and the wear resistance of the diaphragm material is further improved; at the same time, the polytetrafluoroethylene also reduces the hydrophilicity of the diaphragm material, and the introduced modified silica aerogel material surface is subjected to hydrophobic treatment; the two synergistically form a hydrophobic micro-nano structure in the diaphragm, which improves the overall hydrophobic performance of the diaphragm and endows the heat insulation tile surface with good self-cleaning performance; in addition, the introduced modified silica aerogel material can also significantly improve the temperature barrier performance of the diaphragm material, that is, the heat insulation performance of the heat insulation tile surface is significantly improved.

[0009] The object of the application can also be solved by the following technical measures: In particular, the particle size of the polytetrafluoroethylene fine powder is 1-20 μm.

[0010] In particular, the glass fiber is a chopped fiber, the diameter is 9-13 μm, and the aspect ratio is 20.

[0011] In particular, the modified silica aerogel powder is a surface fluorine modified aerogel powder, and the particle size is 5-50 nm.

[0012] In particular, the crystallization nucleating agent is one of talc, titanium dioxide or boron nitride, and the lubricating aid is one of calcium stearate or ethylene bis-stearamide.

[0013] Another object of the application is achieved as follows: A preparation method of a corrosion-resistant wear-resistant self-cleaning heat insulation tile surface diaphragm material, characterized by comprising the following steps: S1, first, polyether ether ketone fine powder, polytetrafluoroethylene fine powder, glass fiber, modified silica aerogel powder, crystallization nucleating agent and lubricating aid are added to a high-speed mixer according to their respective proportions, the mixed material is dried at 120 DEG C for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, and after being heated to form a melt, they are extruded and plasticized by the extruder on the extrusion casting machine, and then flow to the casting roller on the extrusion casting machine, and then are pulled, cut and wound to obtain the corrosion-resistant wear-resistant self-cleaning heat insulation tile film material.

[0014] Specifically further, in the S1 step, the preparation method of the modified silica aerogel powder comprises the following steps: Step one, 5g of silica aerogel powder is added to 32g of deionized water and stirred and dispersed; Step two, 1g of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane is dissolved in 100g of anhydrous ethanol and stirred until fully dissolved; Step three, after the solutions in step one and step two are fully mixed, 8g of ammonia solution is added, and the reaction is stirred at room temperature for 24h; Step four, the solution obtained in step three is centrifuged and washed with anhydrous ethanol solution for 3 times, and then placed in a vacuum oven and dried at 80℃ for 24h to obtain the modified silica aerogel powder.

[0015] Specifically further, in the S1 step, the extrusion temperature of the single screw extruder is controlled at 370-390℃, and the extrusion speed is 2.0-2.5 mm / s.

[0016] Specifically further, in the S2 step, the extruder extrusion temperature of the extrusion casting machine is controlled at 380-420℃, the extruder speed of the extrusion casting machine is 20-60r / min, the casting roll speed on the extrusion casting machine is 2-10m / min, and the casting roll temperature on the extrusion casting machine is controlled below 30℃.

[0017] The beneficial effects of the present application are as follows: (1) The surface diaphragm material of the corrosion-resistant and wear-resistant self-cleaning heat insulation tile uses polyether ether ketone as the base material, and the polyether ether ketone has excellent temperature resistance, wear resistance, chemical corrosion resistance, ultraviolet resistance and self-lubricity, which meets the use of the product in harsh environments (such as extreme high temperature weather, northwest gale sand environment, serious corrosion gas chemical industry park and high altitude area, etc.); that is, the environmental adaptability of the heat insulation tile is significantly improved.

[0018] (2) At the same time, polytetrafluoroethylene fine powder is introduced into the polyether ether ketone matrix, which further improves the wear resistance of the diaphragm material; at the same time, the polytetrafluoroethylene also reduces the hydrophilicity of the diaphragm material, and the surface of the introduced modified silica aerogel material is treated to be hydrophobic; the two synergistically construct a hydrophobic micro-nano structure in the diaphragm, which improves the overall hydrophobic performance of the diaphragm and endows the heat insulation tile surface with good self-cleaning performance.

[0019] (3) In addition, the introduced modified silica aerogel material can also significantly improve the temperature barrier performance of the diaphragm material, that is, the heat insulation performance of the heat insulation tile surface is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Process flow chart for the preparation method of the corrosion-resistant wear-resistant self-cleaning heat insulation tile surface diaphragm material in the present application.

[0021] Figure 2 Process flow chart for the preparation method of the modified silica aerogel powder in the present application. DETAILED DESCRIPTION

[0022] The present patent will be further described below in conjunction with the drawings and embodiments: wherein the drawings are only used for exemplary illustration, the representations are only schematic diagrams, and cannot be understood as limiting the present patent; in order to better illustrate the embodiments of the present patent, some components in the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it can be understood that some well-known structures in the drawings and their descriptions can be omitted.

[0023] As used in the present patent, the terms: first, second, etc., do not represent any order, quantity or importance, and are only used for differentiation. As used in the present patent, the term: one, does not represent a limitation of quantity, but represents the existence of at least one mentioned object. As used in the present patent, the terms indicating orientation or position: top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, above, below, etc., mean reflecting relative position, not absolute position; for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0024] Example one, in conjunction with Figure 1 and Figure 2 As shown in the drawings, a preparation method of a corrosion-resistant wear-resistant self-cleaning heat insulation tile surface diaphragm material, characterized by comprising the following steps: S1, first, 100 parts of polyether ether ketone fine powder, 10 parts of polytetrafluoroethylene fine powder, 20 parts of glass fiber, 5 parts of modified silica aerogel powder, 0.2 parts of talcum powder and 0.2 parts of calcium stearate are added to a high-speed mixer for mixing, the mixed material is dried at 120℃ for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, and after being heated to form a melt, they are extruded and plasticized by the extruder on the extrusion casting machine, and then flow to the casting roller on the extrusion casting machine, and then are pulled, cut and wound to obtain the corrosion-resistant wear-resistant self-cleaning heat insulation tile film material.

[0025] As a specific scheme, the polyether ether ketone fine powder is G series-770G PEEK pure resin particles of Zhongyan High Polymer Material Co., Ltd.

[0026] As a specific scheme, the modified silica aerogel powder is a surface fluorine modified aerogel powder, and the particle size is 5-50 nm; the preparation method of the modified silica aerogel powder comprises the following steps: Step one, 5 g of silica aerogel powder is added to 32 g of deionized water and stirred and dispersed; Step two, 1 g of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane is dissolved in 100 g of anhydrous ethanol, and stirred until fully dissolved; Step three, after the solutions in steps one and two are fully mixed, 8 g of ammonia solution is added, and the reaction is stirred at room temperature for 24 h; Step four, the solution obtained in step three is centrifuged and washed with anhydrous ethanol solution for 3 times, and then placed in a vacuum oven and dried at 80℃ for 24 h to obtain the modified silica aerogel powder.

[0027] As a specific scheme, the particle size of the polytetrafluoroethylene fine powder is 1-20 μm; the fine powder is generally a sphere, and the particle size is the diameter of the sphere.

[0028] As a specific scheme, the glass fiber is a chopped fiber, the diameter is 9-13 μm, and the aspect ratio is 20, which is the ratio of length to diameter.

[0029] More specifically, in the S1 step, the extrusion temperature of the single screw extruder is controlled at 370-390℃, and the extrusion speed is 2.0-2.5 mm / s; the drying operation in the S1 step can be performed in a conventional oven.

[0030] More specifically, in the S2 step, the extruder extrusion temperature of the extrusion casting machine is controlled at 380-420℃, the extruder speed of the extrusion casting machine is 20-60 r / min, the casting roll speed on the extrusion casting machine is 2-10 m / min, and the casting roll temperature on the extrusion casting machine is controlled below 30℃.

[0031] More specifically, the oven is a constant temperature oven, and the extruder on the extrusion casting machine is also a single screw extruder, which is a screw extruder of Guangzhou Pudong Experimental Analysis Instrument Co., Ltd., model SJ-4525; the high-speed mixer is a high-speed mixer of Guangzhou Pudong Experimental Analysis Instrument Co., Ltd., model SHR-10A; and the extrusion casting machine is a high-speed mixer of Guangzhou Pudong Experimental Analysis Instrument Co., Ltd., model XH-432-3.

[0032] Example two, the preparation method of this example is similar to that of example one, except that the specific products of the crystallization nucleating agent and the lubricating aid are different, and the proportions of the components are different, which comprises the following steps: S1, first 100 parts of polyether ether ketone fine powder, 15 parts of polytetrafluoroethylene fine powder, 24 parts of glass fiber, 7 parts of modified silica aerogel powder, 0.5 parts of titanium dioxide and 0.2 parts of calcium stearate are added to a high-speed mixer for mixing, the mixed material is dried at 120℃ for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, heated to form a melt, and then extruded and plasticized by the extruder on the extrusion casting machine, the extruded and plasticized material flows onto the casting roller on the extrusion casting machine, and then is drawn, cut and wound to obtain the corrosion-resistant, wear-resistant and self-cleaning heat insulation tile film material.

[0033] Example three, the preparation method of this embodiment is similar to that of example one, except that the specific products of the crystallization nucleating agent and the lubricating aid are different, and the proportions of the components are different, which includes the following steps: S1, first 100 parts of polyether ether ketone fine powder, 20 parts of polytetrafluoroethylene fine powder, 28 parts of glass fiber, 8 parts of modified silica aerogel powder, 0.7 parts of titanium dioxide and 0.4 parts of calcium stearate are added to a high-speed mixer for mixing, the mixed material is dried at 120℃ for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, heated to form a melt, and then extruded and plasticized by the extruder on the extrusion casting machine, the extruded and plasticized material flows onto the casting roller on the extrusion casting machine, and then is drawn, cut and wound to obtain the corrosion-resistant, wear-resistant and self-cleaning heat insulation tile film material.

[0034] Example four, the preparation method of this embodiment is similar to that of example one, except that the specific products of the crystallization nucleating agent and the lubricating aid are different, and the proportions of the components are different, which includes the following steps: S1, first 100 parts of polyether ether ketone fine powder, 18 parts of polytetrafluoroethylene fine powder, 34 parts of glass fiber, 10 parts of modified silica aerogel powder, 0.9 parts of boron nitride and 0.6 parts of ethylene bis stearyl amide are added to a high-speed mixer for mixing, the mixed material is dried at 120℃ for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, heated to form a melt, and then extruded and plasticized by the extruder on the extrusion casting machine, the extruded and plasticized material flows onto the casting roller on the extrusion casting machine, and then is drawn, cut and wound to obtain the corrosion-resistant, wear-resistant and self-cleaning heat insulation tile film material.

[0035] Example five, the preparation method of this embodiment is similar to that of example one, except that the specific products of the crystallization nucleating agent and the lubricating aid are different, and the proportions of the components are different, which includes the following steps: S1, first 100 parts of polyether ether ketone powder, 16 parts of polytetrafluoroethylene powder, 36 parts of glass fiber, 7 parts of modified silica aerogel powder, 0.5 parts of titanium dioxide and 0.8 parts of ethylene bis stearyl amide are added to a high-speed mixer for mixing, the mixed material is dried at 120℃ for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, and after being heated to form a melt, they are extruded and plasticized by the extruder on the extrusion casting machine, and then flow to the casting roller on the extrusion casting machine, and then are drawn, cut and wound to obtain the corrosion-resistant, wear-resistant and self-cleaning heat insulation tile film material.

[0036] Example six, the preparation method of this example is similar to that of example one, except that the specific products of the crystallization nucleating agent and the lubricating aid are different, and the proportions of the components are different, which comprises the following steps: S1, first 100 parts of polyether ether ketone powder, 14 parts of polytetrafluoroethylene powder, 26 parts of glass fiber, 5 parts of modified silica aerogel powder, 0.7 parts of talc powder and 0.4 parts of ethylene bis stearyl amide are added to a high-speed mixer for mixing, the mixed material is dried at 120℃ for 2h, and then melt blended and extruded through a single screw extruder to obtain granules; S2, the above granules are added to an extrusion casting machine, and after being heated to form a melt, they are extruded and plasticized by the extruder on the extrusion casting machine, and then flow to the casting roller on the extrusion casting machine, and then are drawn, cut and wound to obtain the corrosion-resistant, wear-resistant and self-cleaning heat insulation tile film material.

[0037] Comparative example one, the preparation method of this example is similar to that of example one, except that polytetrafluoroethylene powder, glass fiber and modified silica aerogel powder are not added, and the other steps are the same as those of example one.

[0038] Comparative example two, the preparation method of this example is similar to that of example two, except that glass fiber and modified silica aerogel powder are not added, and the other steps are the same as those of example two.

[0039] Comparative example three, the preparation method of this example is similar to that of example one, except that modified silica aerogel powder is not added, and the other steps are the same as those of example one.

[0040] Comparative example four, the preparation method of this example is similar to that of example one, except that polytetrafluoroethylene powder is not added, and the other steps are the same as those of example one.

[0041] Performance test: 1. The tensile strength and elongation at break in the above table are mechanical properties, which represent whether the surface membrane of the thermal insulation tile can be formed and whether it can be stable during use; the mechanical properties such as tensile strength and breaking strength are tested by an Instron 5982 type mechanical testing machine, and the tensile plastic is 1 mm / s.

[0042] 2. The glass transition temperature is a thermal property, which represents the temperature resistance of the surface membrane of the thermal insulation tile; the glass transition temperature is tested by a differential scanning calorimeter (DSC 250) with a heating rate of 2° / min.

[0043] 3. The friction coefficient and wear volume are tribological properties, which represent the wear resistance of the surface membrane of the thermal insulation tile. The friction coefficient test method is as follows: a Rtec friction and wear tester (MCR550) is used for testing, a ball-disc mode is selected, a GCr15 bearing steel ball is used as the friction pair, the surface membrane is adhered to a stainless steel disc during testing, the test load is 5N, the frequency is 6Hz, the test length is 6mm, the test time is 15min, and the value at the end of the test is taken as the final friction coefficient. The wear volume test method is as follows: a white light interferometer is used to observe the wear morphology and calculate the wear volume.

[0044] 4. The thermal conductivity is a thermal property, which represents the temperature blocking ability of the surface membrane of the thermal insulation tile; the thermal conductivity is measured by a thermal reflection method thermal conductivity instrument (NANO TR).

[0045] 5. The water contact angle is the hydrophilic and lipophilic property of the film surface, which represents the anti-fouling performance and self-cleaning performance of the surface membrane of the thermal insulation tile; the water contact angle is measured by a dynamic contact angle measuring instrument (OCA25).

[0046] The corrosion-resistant and wear-resistant self-cleaning surface membrane materials of the thermal insulation tile prepared in Examples 1 to 6 and Comparative Examples 1 to 4 are tested according to the test methods described in 1-7 above, and the test results are shown in the following table Tensile strength (MPa) Elongation at break (%) Glass transition temperature o C) Friction coefficient Wear volume mm 3 (N·m) Thermal conductivity (W / (m-k)) Water contact angle (°) Example 1 45.3 26.5 148 0.132 3.24*10 -6 ]] 0.132 151 Example 2 47.2 28.7 152 0.154 1.79*10 -6 ]] 0.119 153 Example 3 53.6 29.4 156 0.143 5.12*10 -6 ]]> 0.187 154 Example 4 54.4 32.1 153 0.114 1.34*10 -6 ]]> 0.096 151 Example 5 56.8 29.7 149 0.151 2.15*10 -6 ]]> 0.127 154 Example 6 51.9 26.8 157 0.135 1.96*10 -6 ]]> 0.156 152 Comparative Example 1 37.6 40.2 145 0.334 7.31*10 -6 ]] 0.28 84 Comparative Example 2 48.6 29.3 151 0.285 4.67*10 -6 ]]> 0.25 132 Comparative Example 3 46.4 27.8 153 0.164 2.91*10 -6 ]]> 0.42 135 Comparative Example 4 51.2 29.3 151 0.227 8.12*10 -6 ]]> 0.21 97 Conclusion: According to the data of Example 1 and Comparative Example 1 in the table, it can be seen that the compounding of polytetrafluoroethylene fine powder, glass fiber and modified silica aerogel powder makes the prepared surface membrane material of the thermal insulation tile have more stable mechanical properties, better wear resistance, better temperature blocking ability and anti-fouling performance and self-cleaning performance.

[0047] According to the data of Example 2 and Comparative Example 2 in the table, it can be seen that the compounding of glass fiber and modified silica aerogel powder makes the prepared surface membrane material of the thermal insulation tile have better wear resistance, better temperature blocking ability and anti-fouling performance and self-cleaning performance.

[0048] According to the data in the table, the data of Example 1 and Comparative Example 3 can be seen that the addition of modified silica aerogel powder further improves the temperature barrier ability, anti-fouling performance and self-cleaning performance of the surface diaphragm material of the thermal insulation tile.

[0049] According to the data in the table, the data of Example 1 and Comparative Example 4 can be seen that the addition of polytetrafluoroethylene fine powder further improves the wear resistance, anti-fouling performance and self-cleaning performance of the surface diaphragm material of the thermal insulation tile.

[0050] The above examples are only examples for clearly illustrating the patent, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the patent, a number of modifications and improvements can be made, which are within the scope of the patent. Therefore, the protection scope of the patent should be subject to the appended claims.

Claims

1. A corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material, characterized in that, The raw materials for preparing the heat-insulating tile surface membrane material include the following components: 100 parts of fine polyetheretherketone powder 10-20 parts of fine polytetrafluoroethylene powder 20-40 parts glass fiber 5-10 parts of modified silica aerogel powder 0.1-1 part of crystallizing nucleating agent Lubricant 0.1-1 part.

2. The corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material according to claim 1, characterized in that, The particle size of the polytetrafluoroethylene fine powder is 1-20 μm.

3. The corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material according to claim 1, characterized in that, The glass fiber is a short-cut fiber with a diameter of 9-13 μm and an aspect ratio of 20.

4. The corrosion-resistant, wear-resistant, self-cleaning heat-insulating tile surface membrane material according to claim 1, characterized in that, The modified silica aerogel powder is a fluorine-modified aerogel powder with a particle size of 5-50 nm.

5. The corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material according to claim 1, characterized in that, The nucleating agent is one of talc, titanium dioxide, or boron nitride, and the lubricating agent is one of calcium stearate or ethylene bis-stearamide.

6. A method for preparing a corrosion-resistant, wear-resistant, self-cleaning heat-insulating tile surface membrane material as described in any one of claims 1-5, characterized in that, Includes the following steps: S1, firstly, fine powder of polyetheretherketone, fine powder of polytetrafluoroethylene, glass fiber, modified silica aerogel powder, crystallizing nucleating agent and lubricating agent are added to a high-speed mixer according to their respective proportions and mixed. The mixed material is dried at 120°C for 2 hours, and then melt-blended and extruded through a single screw extruder to obtain granules. S2, the above granules are added into the extrusion casting machine, heated to form a melt, and then extruded and plasticized by the extruder on the extrusion casting machine. The extruded and plasticized material flows onto the casting roller on the extrusion casting machine, and is then drawn, cut, and wound to obtain the corrosion-resistant, wear-resistant, and self-cleaning heat insulation tile film material.

7. The method for preparing the corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material according to claim 6, characterized in that, In step S1, the preparation method of the modified silica aerogel powder includes the following steps: Step 1: Add 5g of silica aerogel powder to 32g of deionized water and stir to disperse; Step 2: Dissolve 1g of 1H,1H,2H,2H-perfluorooctyltriethoxysilane in 100g of anhydrous ethanol and stir until fully dissolved; Step 3: After thoroughly mixing the solutions from Step 1 and Step 2, add 8g of ammonia solution and stir the mixture at room temperature for 24 hours. Step 4: Centrifuge the solution obtained in Step 3, wash it three times with anhydrous ethanol solution, and then dry it in a vacuum oven at 80°C for 24 hours to obtain modified silica aerogel powder.

8. The method for preparing the corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material according to claim 6, characterized in that, In step S1, the extrusion temperature of the single screw extruder is controlled at 370-390℃, and the extrusion speed is 2.0-2.5 mm / s.

9. The method for preparing the corrosion-resistant, wear-resistant, and self-cleaning heat-insulating tile surface membrane material according to claim 6, characterized in that, S2 In the process, the extrusion temperature of the extruder is controlled at 380-420℃, the extruder speed is 20-60 r / min, the speed of the casting rollers on the extruder is 2-10 m / min, and the temperature of the casting rollers on the extruder is controlled below 30℃.

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