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Composite materials of aerogel and phase change material

A phase change material, aerogel technology, applied in mechanical equipment, pipeline protection, pipeline protection through thermal insulation, etc., can solve problems such as poor thermal performance

Inactive Publication Date: 2008-06-18
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the binder material has inferior thermal properties compared to aerogels; therefore, there are drawbacks to using binders instead of some aerogels

Method used

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  • Composite materials of aerogel and phase change material
  • Composite materials of aerogel and phase change material
  • Composite materials of aerogel and phase change material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Deposition of the silicone matrix adhesive 40, airgel 20 and PCM 30 materials was achieved using the apparatus shown schematically in FIG. 2 for coating on substrates. A preferred method is the convergent spray process. Using the converging spray method, the airgel particles 20 are mixed with the liquid silicone precursor 50 at the time of deposition on the substrate 60 or just prior to deposition on the substrate 60 .

[0034] PCM beads may also be included, and they may be included in the silicone mixture 50, or they may be included with the airgel 20 or separately. Thus, two or more deposition fluids may be used. This deposition method minimizes breakage of the friable airgel particles and minimizes solvent uptake by the particles. Formation of the deposition fluid may be accomplished using any conventional spraying device. Preferred deposition rates are shown in Table 1 along with exemplary compositions of deposited materials.

[0035] Table 1 also includes ther...

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Abstract

In one aspect, the invention provides a body comprising particles containing an insulating aerogel material intermingled with particles containing a phase change material, and a binder forming a matrix retaining the intermingled particles. In another aspect, the invention provides a method of forming an insulating body comprised by applying first and second streams onto a substrate; the first stream comprising a binder and the second stream comprising particles containing aerogel material; and simultaneously applying a phase change material onto the substrate.

Description

technical field [0001] This invention relates to aerogels and thermal insulation composites containing aerogels. Background technique [0002] Aerogels are known to provide good thermal insulation and have attractive thermal protection per unit weight compared to other materials. There is an increasing need for highly insulating materials such as aerogels for use in vehicles, especially aircraft. This is especially true in the case of vehicles that experience severe thermal loads over long periods of time. Unfortunately, aerogels are difficult to coat on the claimed surfaces. Aerogels can be used in solid form, or more commonly in flexible blanket form, and they cannot be conventionally sprayed on. Neither solid nor coating form can be applied to a surface as easily as spray-on materials. When the airgel-adhesive composition is used for airgel coating, the aerogel can be applied by spraying, wherein the adhesive holds the airgel particles together and in the on the cove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/32C04B20/10F16L59/00
CPCF16L59/028C04B2111/00146C04B2111/28C04B20/10C04B26/32Y02E60/14C04B14/064C04B20/008C04B24/38C04B40/0028
Inventor 斯坦利·A·劳顿
Owner THE BOEING CO
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