Mica silica gel foam multilayer structure aerogel sheet

By adopting mica silicone foam multi-layer structure aerogel sheets, the problems of poor high-temperature insulation and processing process pollution in the existing technology are solved, and aerogel sheets with high-temperature insulation, flame impact resistance and stable performance are achieved, and are suitable for extreme temperature environments exceeding 1000℃.

CN119930204AInactive Publication Date: 2025-05-06PANYUE NEW MATERIALS (SUZHOU) CO LTD
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Patent Information

Application Number
CN202411864345.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-05-06
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, materials such as mica sheets, high-temperature ceramic fiber cotton, aerogel sheets, silicone foams and ceramicable silicone foams have poor thermal insulation effect at high temperatures, and are prone to contamination during processing, high cost, and lose the temperature insulation effect at extreme temperatures exceeding 1000°C, bringing the risk of thermal runaway.

Method used

Mica silicone foam multi-layer structure aerogel sheet is used to mix raw materials such as aerogel powder, glass powder, wollastonite, aluminum hydroxide, hydroxy silicone oil, organosiloxane, catalyst and hydrogen-containing silicone oil in a specific proportion, and foam and cure at high temperature to form a multi-layer structure mica silicone foam aerogel sheet.

Benefits of technology

It achieves high-temperature insulation, can resist flame impact, good rebound performance, and stable performance. It can be used for a long time within the temperature range of -55℃-200℃, and maintains the temperature insulation effect at extreme temperatures exceeding 1000℃, and has no pollution during processing.

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Abstract

The invention relates to the technical field of aerogel sheets, and discloses a mica silica gel foam multilayer structure aerogel sheet, which is prepared from the following raw materials in parts by weight: 10 to 15 parts of aerogel powder, 10 to 30 parts of glass powder, 10 to 30 parts of wollastonite, 20 to 30 parts of aluminum hydroxide, 30 to 50 parts of hydroxyl silicone oil, 100 parts of organosiloxane, 0.1 to 0.5 part of catalyst and 20 to 30 parts of hydrogen-containing silicone oil. The aerogel is silicon dioxide aerogel powder, the density is 1.5 MG / ML, the aperture is 10-50 NM, the glass powder is low-melting-point ceramic powder, and the particle size is 1-20 UM. The preparation method is simple, the process is easy to control, and the quality is stable. The prepared multi-layer structure mica silica gel foam aerogel sheet has the advantages of high-temperature insulation, flame impact resistance, good rebound resilience, stable performance, wide temperature range, capability of being used for a long time, capability of working at an extreme temperature exceeding 1000 DEG C, superexcellent thermal insulation effect and no pollution in the manufacturing and processing processes.
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Description

Technical Field

[0001] The invention relates to the technical field of aerogel sheets, and in particular to an aerogel sheet with a mica silica gel foam multilayer structure. Background Art

[0002] At present, in the new energy thermal runaway solution, mica sheets, ceramic fiber wool, aerogel sheets, silicone foam and ceramic silicone foam and other basic materials are mostly used. Mica sheets are heat-insulating at high temperatures and can resist flame impact, but they have no compression resilience; ceramic fiber wool is compressible, but the high-temperature effect is general, and the thermal insulation effect is greatly reduced after compression; aerogel sheets are easy to lose powder, pollute the environment during processing and are costly, and when the temperature exceeds 1000℃, its structure is easy to collapse and lose its thermal insulation effect; silicone foam has poor flame impact resistance; ceramic silicone foam is prone to cracking after ceramicization, which reduces the thermal insulation effect and brings the risk of thermal runaway. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a mica silica gel foam multi-layer structure aerogel sheet.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A mica silica gel foam multilayer structure aerogel sheet comprises the following raw materials in parts by weight: 10-15 parts of aerogel powder, 10-30 parts of glass powder, 10-30 parts of wollastonite, 20-30 parts of aluminum hydroxide, 30-50 parts of hydroxy silicone oil, 100 parts of organic siloxane, 0.1-0.5 parts of catalyst and 20-30 parts of hydrogen-containing silicone oil.

[0005] As a further technical solution of the present invention, the aerogel is a silica aerogel powder with a density of 1.5 MG / ML and a pore size of 10-50 NM.

[0006] As a further technical solution of the present invention, the glass powder is a low melting point ceramic powder with a particle size of 1-20 UM.

[0007] As a further technical solution of the present invention, the wollastonite has a fineness of 500-3000 mesh, the catalyst is a platinum catalyst with a PT content of 500-1000 PPM, and the cloud sheet has a thickness of 0.05-5 MM.

[0008] As a further technical solution of the present invention, the aluminum hydroxide is a powder with a fineness of 2000-3000 mesh, and the hydrogen-containing silicone oil is methyl hydrogen-containing silicone oil with a viscosity of 50-200 CPS.

[0009] As a further technical solution of the present invention, the hydroxy silicone oil is terminal hydroxyl polydimethylsiloxane with a viscosity of 100-500 CPS.

[0010] As a further technical solution of the present invention, the organosiloxane is vinyl-terminated polydimethylsiloxane with a viscosity of 100,000 CPS and a hardness of 70 degrees Shore A.

[0011] As a further technical solution of the present invention, the color paste is a colorant prepared with hydroxy silicone oil and has a viscosity of 5000-10000 CPS.

[0012] The beneficial effects of the present invention are: 1. The present invention has a simple manufacturing method, an easy-to-control process, and stable quality. The prepared multi-layer structure mica silica foam and multi-layer structure mica silica foam aerogel sheet have high temperature insulation, flame impact resistance, good resilience, stable performance, long-term use, wide temperature range, can work at extreme temperatures exceeding 1000°C, excellent thermal insulation effect, and pollution-free manufacturing and processing processes. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0014] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below in conjunction with the embodiments.

[0015] A mica silica gel foam multilayer structure aerogel sheet comprises the following raw materials in parts by weight: 10-15 parts of aerogel powder, 10-30 parts of glass powder, 10-30 parts of wollastonite, 20-30 parts of aluminum hydroxide, 30-50 parts of hydroxy silicone oil, 100 parts of organic siloxane, 0.1-0.5 parts of catalyst, and 20-30 parts of hydrogen-containing silicone oil. The multilayer structure mica silica gel foam and the multilayer structure mica silica gel foam aerogel sheet are formed by placing the aerogel powder on a single-layer mica sheet or between multiple layers of mica sheets and foaming and curing at high temperature.

[0016] In the present invention, the aerogel is silicon dioxide aerogel powder with a density of 1.5 MG / ML and a pore size of 10-50 NM.

[0017] In the present invention, the glass powder is a low melting point ceramic powder with a particle size of 1-20 um.

[0018] In the present invention, the wollastonite has a fineness of 500-3000 meshes, the catalyst is a platinum catalyst with a PT content of 500-1000 PPM, and the cloud sheet has a thickness of 0.05-5 MM.

[0019] In the present invention, the aluminum hydroxide is a powder with a fineness of 2000-3000 meshes, and the hydrogen-containing silicone oil is methyl hydrogen-containing silicone oil with a viscosity of 50-200 CPS.

[0020] In the present invention, the hydroxy silicone oil is hydroxy-terminated polydimethylsiloxane with a viscosity of 100-500 CPS.

[0021] In the present invention, the organosiloxane is vinyl-terminated polydimethylsiloxane with a viscosity of 100,000 CPS and a hardness of 70 degrees Shore A.

[0022] In the present invention, the color paste is a colorant prepared from hydroxy silicone oil, and has a viscosity of 5000-10000 CPS.

[0023] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the manufacturing method is simple, the process is easy to control, and the quality is stable. The multi-layer structure mica silica foam and the multi-layer structure mica silica foam aerogel sheet have high temperature insulation, flame impact resistance, good resilience, stable performance, long-term use, wide temperature range (-55℃-200℃), can work at extreme temperatures exceeding 1000℃, excellent thermal insulation effect, and pollution-free manufacturing and processing.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mica silica gel foam multilayer structure aerogel sheet, characterized in that: The invention comprises the following raw materials in parts by weight: 10-15 parts of aerogel powder, 10-30 parts of glass powder, 10-30 parts of wollastonite, 20-30 parts of aluminum hydroxide, 30-50 parts of hydroxy silicone oil, 100 parts of organic siloxane, 0.1-0.5 parts of catalyst and 20-30 parts of hydrogen-containing silicone oil.

2. The mica silica foam multilayer aerogel sheet according to claim 1, characterized in that: The aerogel is silicon dioxide aerogel powder with a density of 1.5 MG / ML and a pore size of 10-50 NM.

3. The mica silica gel foam multilayer structure aerogel sheet according to claim 2, characterized in that: The glass powder is a low melting point ceramic powder with a particle size of 1-20 um.

4. The mica silica foam multilayer structure aerogel sheet according to claim 3, characterized in that: The wollastonite has a fineness of 500-3000 meshes, the catalyst is a platinum catalyst with a PT content of 500-1000 PPM, and the cloud sheet has a thickness of 0.05-5 MM.

5. The mica silica foam multilayer structure aerogel sheet according to claim 4, characterized in that: The aluminum hydroxide is a powder with a fineness of 2000-3000 mesh, and the hydrogen-containing silicone oil is methyl hydrogen-containing silicone oil with a viscosity of 50-200 CPS.

6. The mica silica gel foam multilayer structure aerogel sheet according to claim 5, characterized in that: The hydroxy silicone oil is terminal hydroxyl polydimethylsiloxane with a viscosity of 100-500 CPS.

7. The mica silica gel foam multilayer structure aerogel sheet according to claim 6, characterized in that: The organosiloxane is vinyl-terminated polydimethylsiloxane with a viscosity of 100,000 CPS and a hardness of 70 degrees Shore A.

8. The mica silica gel foam multilayer structure aerogel sheet according to claim 7, characterized in that: The color paste is a colorant prepared with hydroxy silicone oil and has a viscosity of 5000-10000 CPS.