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Fiber reinforced flexible silica aerogel

A silica and fiber-reinforced technology, applied in chemical instruments and methods, clothing, protective equipment, etc., can solve problems such as powder dropping, and achieve the effects of good shape adaptability, good construction process, and improved reliability

Inactive Publication Date: 2018-12-04
INNER MONGOLIA AEROSPACE HONGGANG MACHINERY
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fiber-reinforced flexible silica airgel to solve the problem of improving SiO 2 The strength of airgel, improve the toughness, solve the problem of falling powder

Method used

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  • Fiber reinforced flexible silica aerogel
  • Fiber reinforced flexible silica aerogel

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with specific embodiments.

[0015] Such as figure 2 As shown, a flexible silica airgel, the inner glass fiber cloth reinforced epoxy resin sheet to the flexible SiO 2 The airgel is reinforced by interlayer overlap, and the outer surface is reinforced by glass fiber cloth. The ceramizable phenolic resin is used for flexible SiO 2 Airgel is used for reinforcement and surface protection, and quartz thread is used to sew the entire structure to improve interlayer strength and avoid delamination.

[0016] Flexible SiO 2 Airgel, a fiber mat reinforced flexible SiO 2 airgel.

[0017] The glass fiber cloth reinforced epoxy resin sheet is a composite material sheet with a single layer thickness of 0.2±0.02mm after curing.

[0018] Glass fiber cloth reinforced ceramizable phenolic resin sheet is a composite material sheet with a single layer thickness of 0.2±0.02mm after curing. The resin used is cerami...

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Abstract

The invention relates to fiber reinforced flexible silica aerogel, which comprises glass fiber cloth reinforced ceramization phenolic resin sheets, glass fiber cloth reinforced epoxy resin sheets andflexible SiO2 aerogel and interlayer reinforced quartz fiber sewing threads. The inner part of the flexible silica aerogel is reinforced through interlayer overlapping of the glass fiber cloth reinforced epoxy resin sheets and the flexible SiO2 aerogel, the outer surface of the flexible silica aerogel is provided with the glass fiber cloth reinforced ceramization phenolic resin sheets used for strengthening and protecting the flexible SiO2 aerogel, and the quartz fiber sewing threads are used for through sewing the whole structure. The flexible silica aerogel has high strength and certain adhesive properties, the compressive strength of the flexible SiO2 aerogel is significantly improved, the problem of powder dropping of the aerogel is solved, and the interlayer bonding strength of the structure is improved, so that the reliability of aerogel application is greatly improved.

Description

technical field [0001] The invention relates to a flexible silica airgel, in particular to a fiber-reinforced flexible silica airgel. Background technique [0002] Silicon dioxide (SiO 2 ) Airgel is currently the lightest solid heat insulation material with the best heat insulation performance. At room temperature, the thermal conductivity can be as low as 0.0130W / m*K, and the specific surface area can be as high as 1000m 2 / g, the porosity is as high as 99%, and the density can be as low as 0.003g / cm 3 , is currently the airgel material with the most mature research and the most widely used airgel material. SiO 2 The application of airgel in the aerospace field has attracted much attention. For example, the American Stardust spacecraft used the material to collect comet dust, and the Russian Mir space station and the American Pathfinder Mars probe used it for heat insulation. In the civil field, various types of airgel blankets and airgel particles are widely used in he...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B17/02B32B17/06
CPCB32B5/02B32B9/00B32B9/047B32B2255/02B32B2255/26B32B2262/101B32B2571/00
Inventor 王彬杨学斌乔岳云梁娜郭荣张强
Owner INNER MONGOLIA AEROSPACE HONGGANG MACHINERY
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