Light-weight and high-rigidity heat insulation tile and preparation method thereof

Abstract

The invention discloses a light-weight and high-rigidity heat insulation tile and a preparation method thereof.The heat insulation tile sequentially comprises an upper face plate layer, a middle core layer and a lower face plate layer from top to bottom, the upper face plate layer and the lower face plate layer are the same in structure, and preparation raw materials of the upper face plate layer comprise 25-30 parts of polyether-ether-ketone fine powder, 2-3 parts of titanium dioxide and 67-73 parts of continuous glass fiber cloth; the middle core layer is prepared from the following raw materials: 50-62 parts of polyether-ether-ketone fine powder, 0-2 parts of titanium dioxide, 10-15 parts of hollow glass beads, 3-5 parts of nano aerogel powder and 25 parts of glass fiber mat; according to the heat insulation tile, the upper panel layer and the lower panel layer are both made of polyether-ether-ketone composite materials, the upper panel layer and the lower panel layer have good specific stiffness and specific strength, high rigidity of a product can be well achieved, the density of the heat insulation tile is low, and good light weight is achieved; in addition, the middle core layer still keeps good heat insulation performance at the temperature of 250-350 DEG C, and can be well suitable for medium-high temperature heat insulation scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thermal insulation tiles, in particular to a light weight and high rigidity thermal insulation tile and a preparation method thereof. BACKGROUND

[0002] Thermal insulation tiles are a kind of building materials combining the strength and thermal insulation performance of metal materials. The existing thermal insulation tile is disclosed in Chinese Invention Patent CN221187715U, entitled "Composite thermal insulation tile", and the authorization announcement date is June 21, 2024. The above-mentioned composite thermal insulation tile is provided with a first polymer layer and a first thermal insulation material layer on the outer layer, and the first polymer layer and the first thermal insulation material layer can give the thermal insulation tile good decorative, corrosion resistance and thermal insulation performance.

[0003] However, in the field of aerospace, the requirements for light weight, temperature resistance, durability and reusability of thermal insulation tiles are becoming higher and higher. Currently, ceramic fiber thermal insulation tiles are still used, but the production cost of ceramic fiber thermal insulation tiles is relatively high, which is not suitable for building energy saving, petrochemical industry, ship thermal insulation and other low-temperature insulation fields. In the prior art, polymer-based composite materials are also used, but these materials generally use epoxy resin, phenolic resin and other materials, which can only be used in low-temperature (usually less than 200℃) insulation scenarios and cannot be used in medium-high temperature (for example, 250℃-350℃) insulation scenarios. In addition, pure fiber felt / carpet is also used, but this material lacks rigidity and requires a complex support structure, resulting in low system integration.

[0004] Therefore, it is necessary to develop a light weight, high rigidity and medium-high temperature insulation tile. SUMMARY

[0005] The present application aims to at least solve or alleviate one of the above technical problems, and provides a light weight, high rigidity and medium-high temperature insulation tile.

[0006] Another object of the present application is to provide a preparation method of a light weight, high rigidity and medium-high temperature insulation tile.

[0007] The object of the present application is achieved as follows: A light weight and high rigidity thermal insulation tile, which comprises an upper panel layer, a middle core layer and a lower panel layer from top to bottom, and the upper panel layer and the lower panel layer have the same structure. The preparation raw materials of the upper panel layer comprise the following components: 25-30 parts of polyether ether ketone fine powder, 2-3 parts of titanium white powder, 67-73 parts of continuous glass fiber cloth; The preparation raw materials of the middle core layer comprise the following components: 50-62 parts of polyether ether ketone fine powder, Titanium white 0-2 parts, Hollow glass microbead 10-15 parts, Nano aerogel powder 3-5 parts, Glass fiber felt 25 parts.

[0008] The light weight, high rigidity thermal insulation tile has upper and lower panel layers of polyether ether ketone composite material, has excellent temperature resistance, wear resistance and chemical corrosion resistance, and the upper and lower panel layers with the ratio have good specific rigidity and specific strength, can well realize the high rigidity of the product itself, and the density of the thermal insulation tile is also low, and good light weight is realized; in addition, the composite material of polyether ether ketone and glass fiber felt in the middle core layer itself has good heat resistance and can be used at 200 DEG C for a long time, and the nano aerogel, hollow glass microbead and other thermal insulation materials and titanium white and other infrared light shielding agents are added, so that the thermal insulation performance is still good between 250-350 DEG C, and can be well applied to the medium and high temperature thermal insulation scene.

[0009] The purpose of the application can also be solved by the following technical measures: Specifically further, the upper panel layer and the lower panel layer are high rigidity layers, and the middle core layer is a high-efficiency thermal insulation layer.

[0010] Another purpose of the application is achieved as follows: A preparation method of the light weight, high rigidity thermal insulation tile, characterized by comprising the following steps: S1, 25-30 parts of polyether ether ketone fine powder, 2-3 parts of titanium white are mixed by a high-speed mixer, and then dried at a constant drying temperature for several hours to obtain a mixture A; S2, 50-62 parts of polyether ether ketone fine powder, 0-2 parts of titanium white, 10-15 parts of hollow glass microbead and 3-5 parts of nano aerogel powder are mixed by a high-speed mixer, and then dried at a constant drying temperature for several hours to obtain a mixture B; S3, first, a continuous glass fiber cloth is laid on a hot-pressing mold, then the mixture A is uniformly coated on the continuous glass fiber cloth, and the above steps are alternately repeated for several layers to complete the laying of the lower panel layer; S4, on the basis of S3, the glass fiber felt and the mixture B are continuously laid in turn, and the above steps are alternately repeated for several layers to complete the laying of the middle core layer; S5, on the basis of S4, the continuous glass fiber cloth and the mixture A are continuously laid in turn, and the above steps are alternately repeated for several layers, and finally a layer of continuous glass fiber cloth is laid to complete the laying of the upper panel layer; S6, on the basis of S5, the hot-pressing mold is transferred to a flat curing machine for curing, after curing, the hot-pressing mold is cooled to room temperature at a cooling speed of 5 ℃ / min under a pressure of 5-6 MPa, demolding operation is carried out, and then light-weight, high-rigidity thermal insulation tiles are obtained.

[0011] Specifically further, in the steps of S1 and S2, the drying temperature is 120 ℃, and the drying time is 4-6 hours.

[0012] Specifically further, in the step of S3, a release agent is coated on the hot-pressing mold before a continuous glass fiber cloth is laid on the hot-pressing mold, so as to facilitate the separation of the prepared thermal insulation tile material from the hot-pressing mold.

[0013] Specifically further, in the steps of S3 and S5, the laid continuous glass fiber cloth is 4-8 layers, and the laid mixed material A is 4-8 layers, in the step of S4, the laid glass fiber felt is 32-64 layers, and the laid mixed material B is 32-64 layers; the performance can be flexibly adjusted by adjusting the number of layers of different materials to meet more use requirements.

[0014] Specifically further, in the step of S1, the total amount of polyether ether ketone fine powder and titanium white powder is a1, and the total amount of continuous glass fiber cloth is b1, in the steps of S3 and S5, the amount ratio of one layer of mixed material A to one layer of continuous glass fiber cloth is c1, and c1=a1 / b1; so that the amount ratio of each layer of mixed material A to one layer of continuous glass fiber cloth is the same as the total amount ratio of the corresponding materials.

[0015] Specifically further, in the step of S2, the total amount of polyether ether ketone fine powder, titanium white powder, hollow glass microbead and nano aerogel powder is a2, and the total amount of glass fiber felt is b2, in the step of S4, the amount ratio of one layer of mixed material B to one layer of glass fiber felt is c2, and c2=a2 / b2; so that the amount ratio of each layer of mixed material B to one layer of glass fiber felt is the same as the total amount ratio of the corresponding materials.

[0016] Specifically further, in the step of S6, the specific curing process is as follows: first, the temperature is raised to 380-420 ℃ at a speed of 10 ℃ / min, and the pressure is 0.5-1 MPa, so that the mixed material A and the mixed material B are melted, then hot-pressing is carried out under a pressure of 5-6 MPa, so that the melted mixed material A and the mixed material B are infiltrated into the corresponding continuous glass fiber cloth and glass fiber felt, and curing is completed.

[0017] The beneficial effects of the present application are as follows: (1) This kind of light weight, high rigidity heat insulation tile, the upper and lower panel layers are both polyether ether ketone composite materials, which have excellent temperature resistance, wear resistance, and chemical corrosion resistance. At the same time, the upper and lower panel layers with this ratio have good specific rigidity and specific strength, can well realize the high rigidity of the product itself, and the density of this kind of heat insulation tile is also relatively low, realizing good light weight. In addition, the composite material of polyether ether ketone and glass fiber felt in the middle core layer itself has good heat resistance and can be used at 200°C for a long time. At the same time, it also adds nano aerogel, hollow glass microsphere and other thermal insulation materials and titanium dioxide and other infrared light shielding agents, so that it still maintains good heat insulation performance between 250-350°C, and can be well applied to high-temperature insulation scenes.

[0018] (2) The performance can be flexibly adjusted by adjusting the number of layers of different materials to meet more use requirements.

[0019] (3) The ratio of the amount of each layer of mixture A and one layer of continuous glass fiber cloth to the total amount of the corresponding material is the same. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Process flow chart for the preparation method of light weight, high rigidity heat insulation tile. DETAILED DESCRIPTION

[0021] The patent will be further described below in combination with the drawings and examples: the drawings are only used for illustrative explanation, and the representation is only a schematic diagram, not a physical diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the examples of the patent, some components in the drawings may 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 may be omitted.

[0022] As used in the patent, the terms first, second, etc. do not represent any order, quantity or importance, but are only used for differentiation. As used in the patent, the term one, a, etc. does not represent a limitation on the quantity, but represents the existence of at least one mentioned object. As used in the patent, the terms indicating orientation or position, such as top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, upward, downward, etc., mean reflecting relative position, not absolute position; for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0023] Example one, a light weight, high rigidity heat insulation tile, sequentially includes an upper panel layer, a middle core layer and a lower panel layer from top to bottom, the upper panel layer and the lower panel layer have the same structure, the upper panel layer and the lower panel layer are both high rigidity layers, the middle core layer is a high efficiency heat insulation layer, and the preparation raw material of the upper panel layer includes the following components: Polyether ether ketone fine powder 25 parts, Titanium white 2 parts, Continuous glass fiber cloth 73 parts; The preparation raw materials of the intermediate core layer include the following components: Polyether ether ketone fine powder 50 parts, Titanium white 2 parts, Hollow glass microsphere 10 parts, Nano aerogel powder 3 parts, Glass fiber felt 25 parts.

[0024] Among them, the polyether ether ketone fine powder is G series-770G PEEK pure resin particles of Zhongyan High Polymer Material Co., Ltd.; the titanium white is PFR404 of Ishihara, Japan; the continuous glass fiber cloth is EWR400-1000 type alkali-free glass fiber cloth of China Jushi Co., Ltd.; the hollow glass microsphere is HGS7K32N of 3M Company; the nano aerogel powder is ENOVA IC3100 of Cabot; and the glass fiber felt is E20 of China Jushi Co., Ltd.

[0025] Combined Figure 1 As shown, a preparation method of a light weight, high rigidity thermal insulation tile, characterized by comprising the following steps: S1, 25 parts of polyether ether ketone fine powder and 2 parts of titanium white are mixed by a high-speed mixer, and then dried at 120℃ for 4-6 hours to obtain a mixture A1; S2, 50 parts of polyether ether ketone fine powder, 2 parts of titanium white, 15 parts of hollow glass microsphere and 3 parts of nano aerogel powder are mixed by a high-speed mixer, and then dried at 120℃ for 4-6 hours to obtain a mixture B1; S3, first, a continuous glass fiber cloth is laid on a hot-pressing mold (a release agent is coated on the mold in advance), and then the mixture A1 is uniformly coated on the continuous glass fiber cloth, and the continuous glass fiber cloth and the mixture A1 are alternately laid with 8 layers of each, to complete the laying of the lower panel layer; S4, on the basis of S3, the glass fiber felt and the mixture B1 are continuously laid in turn, and the glass fiber felt and the mixture B1 are alternately laid with 32 layers of each, to complete the laying of the intermediate core layer; S5, on the basis of S4, the continuous glass fiber cloth and the mixture A1 are continuously laid in turn, and the continuous glass fiber cloth and the mixture A1 are alternately laid with 8 layers of each, and finally a layer of continuous glass fiber cloth is laid, to complete the laying of the upper panel layer; S6, on the basis of S5, the hot-pressing mold is transferred to a flat vulcanizing machine for curing, and the specific curing process is as follows: first, the temperature is raised to 380℃ at a rate of 10℃ / min under a pressure of 0.5MPa, so that the mixed material A1 and the mixed material B1 are melted, then hot-pressing is performed under a pressure of 5MPa, so that the melted mixed material A1 and the mixed material B1 are infiltrated into the corresponding continuous glass fiber cloth and the glass fiber felt, after curing, the hot-pressing mold is cooled to room temperature at a cooling rate of 5℃ / min under a pressure of 5MPa, and demolding operation is performed to obtain a lightweight and high-rigidity thermal insulation tile.

[0026] Among them, the model of the flat vulcanizing machine is LSVI-50 of Guangzhou Pudong Experimental Analysis Instrument Co., Ltd.

[0027] In the S1 step, the total amount of polyether ether ketone fine powder and titanium white powder is 27 parts, and the total amount of continuous glass fiber cloth is 73 parts, in the S3 and S5 steps, the amount ratio of one layer of mixed material A and one layer of continuous glass fiber cloth is c1, then c1=27 parts / 73 parts.

[0028] In the S2 step, the total amount of polyether ether ketone fine powder, titanium white powder, hollow glass microsphere and nano aerogel powder is 65 parts, and the total amount of glass fiber felt is 25 parts, in the S4 step, the amount ratio of one layer of mixed material B and one layer of glass fiber felt is c2, then c2=65 parts / 25 parts.

[0029] Example two, this embodiment is similar to example one, the difference is that the proportion of each component, as follows: The preparation raw materials of the upper panel layer include the following components: Polyether ether ketone fine powder 26 parts, Titanium white powder 3 parts, Continuous glass fiber cloth 71 parts; The preparation raw materials of the middle core layer include the following components: Polyether ether ketone fine powder 52 parts, Titanium white powder 1 part, Hollow glass microsphere 12 parts, Nano aerogel powder 4 parts, Glass fiber felt 25 parts.

[0030] A method for preparing a lightweight and high-rigidity thermal insulation tile, characterized in that it comprises the following steps: S1, 26 parts of polyether ether ketone fine powder and 3 parts of titanium white powder are mixed by a high-speed mixer, then dried at 120℃ for 4-6 hours to obtain mixed material A2; S2, 52 parts of polyether ether ketone fine powder, 1 part of titanium white powder, 12 parts of hollow glass microbeads, 4 parts of nano aerogel powder are mixed by a high-speed mixer, and then dried at 120 DEG C for 4-6 hours to obtain a mixture B2; S3, first, a continuous glass fiber cloth is laid on a hot-pressing mold (a release agent is coated on the mold in advance), and then the mixture A2 is uniformly coated on the continuous glass fiber cloth, and the continuous glass fiber cloth and the mixture A2 are alternately laid in 8 layers to complete the laying of the lower panel layer; S4, on the basis of S3, the glass fiber felt and the mixture B2 are continuously laid in turn, and the glass fiber felt and the mixture B2 are alternately laid in 32 layers to complete the laying of the middle core layer; S5, on the basis of S4, the continuous glass fiber cloth and the mixture A2 are continuously laid in turn, and the continuous glass fiber cloth and the mixture A2 are alternately laid in 8 layers, and finally a layer of continuous glass fiber cloth is laid to complete the laying of the upper panel layer; S6, on the basis of S5, the hot-pressing mold is transferred to a flat vulcanizing machine for curing, and the specific curing process is as follows: first, the temperature is raised to 390 DEG C at a rate of 10 DEG C / min under a pressure of 0.7 MPa, so that the mixture A2 and the mixture B2 are melted, then hot-pressing is carried out under a pressure of 5.5 MPa, so that the melted mixture A2 and the mixture B2 are infiltrated into the corresponding continuous glass fiber cloth and glass fiber felt, after curing, the hot-pressing mold is cooled to room temperature at a cooling rate of 5 DEG C / min under a pressure of 5.5 MPa, and then demolding is carried out to obtain a light weight, high rigidity thermal insulation tile.

[0031] Example three, the embodiment is similar to example one, and the difference is that the ratio of each component is different, and the specific is as follows: The preparation raw materials of the upper panel layer include the following components: 27 parts of polyether ether ketone fine powder, 3 parts of titanium white powder, 70 parts of continuous glass fiber cloth; The preparation raw materials of the middle core layer include the following components: 56 parts of polyether ether ketone fine powder, 1 part of titanium white powder, 14 parts of hollow glass microbeads, 4 parts of nano aerogel powder, 25 parts of glass fiber felt.

[0032] A preparation method of a light weight, high rigidity thermal insulation tile, characterized in that, comprising the following steps: S1, 27 parts of polyether ether ketone fine powder, 3 parts of titanium white powder are mixed by a high-speed mixer, and then dried at 120 DEG C for 4-6 hours to obtain a mixture A3; S2, 56 parts of polyether ether ketone fine powder, 1 part of titanium white powder, 14 parts of hollow glass microbeads, 4 parts of nano aerogel powder are mixed by a high-speed mixer, and then dried at 120 DEG C for 4-6 hours to obtain a mixture B3; S3, first, a continuous glass fiber cloth is laid on a hot-pressing mold (a release agent is coated on the mold in advance), and then the mixture A3 is uniformly coated on the continuous glass fiber cloth, and the process is repeated alternately to lay 8 layers of the continuous glass fiber cloth and the mixture A3 to complete the laying of the lower panel layer; S4, on the basis of S3, the glass fiber felt and the mixture B3 are continuously laid in sequence, and the process is repeated alternately to lay 32 layers of the glass fiber felt and the mixture B3 to complete the laying of the middle core layer; S5, on the basis of S4, the continuous glass fiber cloth and the mixture A3 are continuously laid in sequence, and the process is repeated alternately to lay 8 layers of the continuous glass fiber cloth and the mixture A3, and finally a layer of the continuous glass fiber cloth is laid to complete the laying of the upper panel layer; S6, on the basis of S5, the hot-pressing mold is transferred to a flat vulcanizing machine for curing, and the specific curing process is as follows: first, the temperature is raised to 390 DEG C at a rate of 10 DEG C / min under a pressure of 0.7 MPa, so that the mixture A3 and the mixture B3 are melted, then hot-pressing is performed under a pressure of 5 MPa, so that the melted mixture A3 and the mixture B3 are infiltrated into the corresponding continuous glass fiber cloth and glass fiber felt, after curing, the hot-pressing mold is cooled to room temperature at a cooling rate of 5 DEG C / min under a pressure of 5 MPa, and then demolding is performed to obtain a lightweight, high-rigidity thermal insulation tile.

[0033] Example Four, this example is similar to Example One, the difference is the ratio of the components, which is as follows: The preparation raw materials of the upper panel layer include the following components: polyether ether ketone fine powder 29 parts, titanium white powder 2 parts, continuous glass fiber cloth 71 parts; The preparation raw materials of the middle core layer include the following components: polyether ether ketone fine powder 53 parts, titanium white powder 2 parts, hollow glass microbeads 15 parts, nano aerogel powder 5 parts, glass fiber felt 25 parts.

[0034] A method for preparing a lightweight, high-rigidity thermal insulation tile, characterized in that it comprises the following steps: S1, 29 parts of polyether ether ketone fine powder and 2 parts of titanium white powder are mixed by a high-speed mixer, and then dried at 120 DEG C for 4-6 hours to obtain a mixture A4; S2, 53 parts of polyether ether ketone fine powder, 2 parts of titanium white powder, 15 parts of hollow glass microbeads, 5 parts of nano aerogel powder are mixed by a high-speed mixer, and then dried at 120℃ for 4-6 hours to obtain a mixture B4; S3, first, a continuous glass fiber cloth is laid on a hot-pressing mold (a release agent is coated on the mold in advance), and then the mixture A4 is uniformly coated on the continuous glass fiber cloth; the continuous glass fiber cloth and the mixture A4 are alternately laid, and the number of layers of the continuous glass fiber cloth and the mixture A4 is 8; the laying of the lower panel layer is completed. S4, on the basis of S3, the glass fiber felt and the mixture B4 are continuously laid in sequence; the glass fiber felt and the mixture B4 are alternately laid, and the number of layers of the glass fiber felt and the mixture B4 is 32; the laying of the middle core layer is completed. S5, on the basis of S4, the continuous glass fiber cloth and the mixture A4 are continuously laid in sequence; the continuous glass fiber cloth and the mixture A4 are alternately laid, and the number of layers of the continuous glass fiber cloth and the mixture A4 is 8; finally, a layer of continuous glass fiber cloth is laid; the laying of the upper panel layer is completed. S6, on the basis of S5, the hot-pressing mold is transferred to a flat vulcanizing machine for curing; the specific curing process is as follows: first, the temperature is raised to 390℃ at a rate of 10℃ / min under a pressure of 0.9MPa, so that the mixture A4 and the mixture B4 melt; then, hot-pressing is performed under a pressure of 5MPa, so that the melted mixture A4 and the mixture B4 infiltrate into the corresponding continuous glass fiber cloth and glass fiber felt; after curing, the hot-pressing mold is cooled to room temperature at a cooling rate of 5℃ / min under a pressure of 5MPa; demolding is performed to obtain a light-weight, high-rigidity thermal insulation tile.

[0035] Example Five, this example is similar to Example One, the difference is the ratio of each component, which is as follows: The preparation raw materials of the upper panel layer include the following components: 30 parts of polyether ether ketone fine powder, 3 parts of titanium white powder, 67 parts of continuous glass fiber cloth; The preparation raw materials of the middle core layer include the following components: 55 parts of polyether ether ketone fine powder, 2 parts of titanium white powder, 15 parts of hollow glass microbeads, 3 parts of nano aerogel powder, 25 parts of glass fiber felt.

[0036] A preparation method of a light-weight, high-rigidity thermal insulation tile, characterized in that it comprises the following steps: S1, 30 parts of polyether ether ketone fine powder and 3 parts of titanium white powder are mixed by a high-speed mixer, and then dried at 120℃ for 4-6 hours to obtain a mixture A5; S2, 55 parts of polyether ether ketone fine powder, 2 parts of titanium white powder, 15 parts of hollow glass microbeads, 3 parts of nano aerogel powder were mixed by high-speed mixer, and then dried at 120℃ for 4-6 hours to obtain a mixture B5; S3, first, a continuous glass fiber cloth was laid on the hot-pressing mold (the mold was coated with a release agent in advance), and then the mixture A5 was uniformly coated on the continuous glass fiber cloth. The continuous glass fiber cloth and the mixture A5 were alternately laid, and the number of layers of the continuous glass fiber cloth and the mixture A5 was 8. The laying of the lower panel layer was completed. S4, on the basis of S3, the glass fiber felt and the mixture B5 were continuously laid in sequence. The glass fiber felt and the mixture B5 were alternately laid, and the number of layers of the glass fiber felt and the mixture B5 was 32. The laying of the middle core layer was completed. S5, on the basis of S4, the continuous glass fiber cloth and the mixture A5 were continuously laid in sequence. The continuous glass fiber cloth and the mixture A5 were alternately laid, and the number of layers of the continuous glass fiber cloth and the mixture A5 was 8. Finally, a layer of continuous glass fiber cloth was laid to complete the laying of the upper panel layer. S6, on the basis of S5, the hot-pressing mold was transferred to a flat vulcanizing machine for curing. The specific curing process was as follows: first, the temperature was raised to 390℃ at a rate of 10℃ / min under a pressure of 1MPa, so that the mixture A5 and the mixture B5 melted, then hot-pressing was performed under a pressure of 5MPa, so that the melted mixture A5 and the mixture B5 were infiltrated into the corresponding continuous glass fiber cloth and glass fiber felt. After curing, the hot-pressing mold was cooled to room temperature at a cooling rate of 5℃ / min under a pressure of 5MPa, and then demolding was performed to obtain a lightweight, high-rigidity thermal insulation tile.

[0037] Performance test: 1. The smaller the density, the lighter the product material. For example, the density of common aluminum plastic composite board is 2-2.5, and the density is determined according to GB / T4472-2011.

[0038] 2. The bending modulus represents the rigidity of the product, and the bending modulus is determined according to GB / T1449-2005.

[0039] 3. The thermal conductivity represents the thermal insulation performance of the product. The lower the coefficient, the better the thermal insulation performance. The thermal insulation coefficient of aluminum plastic composite board is about 0.4, and the thermal conductivity is tested according to the standard ISO22007-1:2017.

[0040] The thermal insulation tile materials prepared in Examples 1-5 were tested according to the above test methods, and the test results are shown in the following table: Sample Density (g / cm3) Flexural modulus (GPa) Thermal conductivity (W / (m-K)) Example 1 1.67 11.2 0.21 Example 2 1.69 10.9 0.24 Example 3 1.64 12.1 0.28 Example 4 1.72 12.6 0.31 Example 5 1.65 11.3 0.29 Conclusion: 1. The thermal insulation tile materials in the above five examples all have higher rigidity and better heat resistance than the existing aluminum plastic composite board, and the weight is also lighter.

[0041] 2. As can be seen from the data of Example III and Example IV in the table, the combination of polyether ether ketone fine powder and continuous glass fiber cloth makes the prepared thermal insulation tile material have better rigidity.

[0042] The above examples are merely examples for clearly illustrating the patent, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the patent, a number of modifications and improvements can be made, which all belong to the protection scope of the patent. Therefore, the protection scope of the patent should be subject to the appended claims.

Claims

1. A light weight, high rigidity and thermal insulation tile, comprising, from top to bottom, an upper panel layer, a middle core layer and a lower panel layer, the upper panel layer and the lower panel layer having the same structure, the upper panel layer being prepared from the following ingredients: polyether ether ketone fine powder 25-30 parts, titanium white 2-3 parts, and continuous glass fiber cloth 67-73 parts; the middle core layer being prepared from the following ingredients: polyether ether ketone fine powder 50-62 parts, titanium white 0-2 parts, hollow glass microbeads 10-15 parts, nano aerogel powder 3-5 parts, and glass fiber felt 25 parts. The upper panel layer and the lower panel layer are high rigidity layers, and the middle core layer is a high-efficiency thermal insulation layer. The method comprises the following steps: S1, mixing 25-30 parts of polyether ether ketone fine powder and 2-3 parts of titanium white in a high-speed mixer, and then drying at a constant drying temperature for several hours to obtain a mixture A; S2, mixing 50-62 parts of polyether ether ketone fine powder, 0-2 parts of titanium white, 10-15 parts of hollow glass microbeads and 3-5 parts of nano aerogel powder in a high-speed mixer, and then drying at a constant drying temperature for several hours to obtain a mixture B; S3, first laying a continuous glass fiber cloth on a hot press mold, then uniformly coating the mixture A on the continuous glass fiber cloth, and alternately laying several layers of the mixture A and the continuous glass fiber cloth to complete the laying of the lower panel layer; S4, on the basis of S3, continuing to lay the glass fiber felt and the mixture B alternately for several layers to complete the laying of the middle core layer; S5, on the basis of S4, continuing to lay the continuous glass fiber cloth and the mixture A alternately for several layers, and finally laying a layer of continuous glass fiber cloth to complete the laying of the upper panel layer; S6, on the basis of S5, transferring the hot press mold to a flat vulcanizing machine for curing, and then cooling the hot press mold to room temperature at a cooling rate of 5 ℃ / min under a pressure of 5-6 MPa, and demolding to obtain the light weight, high rigidity and thermal insulation tile. In steps S1 and S2, the drying temperature is 120 ℃, and the drying time is 4-6 hours. In step S3, before laying the continuous glass fiber cloth on the hot press mold, a release agent is first coated on the hot press mold.

2. The lightweight, high stiffness insulating tile of claim 1, wherein In steps S3 and S5, the continuous glass fiber cloth is laid in 4-8 layers, and the mixture A is laid in 4-8 layers, in step S4, the glass fiber felt is laid in 32-64 layers, and the mixture B is laid in 32-64 layers.

3. A method of making a lightweight, high-stiffness insulating tile as claimed in claim 1 or 2, characterised in that, In step S1, the total amount of polyether ether ketone fine powder and titanium white is a1, the total amount of continuous glass fiber cloth is b1, the amount ratio of one layer of mixture A to one layer of continuous glass fiber cloth is c1, and c1=a1 / b1. In step S2, the total amount of polyether ether ketone fine powder, titanium white, hollow glass microbeads and nano aerogel powder is a2, the total amount of glass fiber felt is b2, the amount ratio of one layer of mixture B to one layer of glass fiber felt is c2, and c2=a2 / b2. ​ ​ ​ ​ ​ 4. The method of claim 3, wherein the method further comprises, ​ 5. The method of claim 3, wherein the method further comprises the step of: ​ 6. The method of claim 3, wherein the method further comprises, ​ 7. The method of claim 3, wherein the step of applying the coating is performed by spraying the coating onto the substrate. ​ 8. The method of claim 3, wherein the method further comprises, ​ 9. The method of claim 3, wherein the step of forming the lightweight, high- stiffness insulating tile is characterized by In the S6 step, the specific curing process is as follows: first, the temperature is raised to 380-420℃ at 10℃ / min, and the pressure is 0.5-1MPa, so that the mixed material A and the mixed material B are melted; then hot-pressing is performed under 5-6MPa, so that the melted mixed material A and the mixed material B infiltrate into the corresponding continuous glass fiber cloth and the glass fiber felt, and the curing is completed.

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