Heat insulating composite and methods of manufacturing thereof

C - Chemistry – Metallurgy – 04 – B

Patent

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Details

C04B 33/13 (2006.01) C03C 3/076 (2006.01) C03C 12/00 (2006.01) C04B 33/04 (2006.01) C04B 35/18 (2006.01)

Patent

CA 2614024

Heat insulating panels are widely used in various domains, for example construction sites or hospitals. These panels require adhesives which may generate heat when the panels are subjected to high temperatures. In the field of high temperature insulation, ceramics are brittle and may not be suitable in some applications. This invention discloses a heat-insulating composite including a plurality of glass, and a binder composition for fusing the glass when the heat-insulting composite is exposed to a temperature higher than 1000C. It was found that as the heat progresses from the outer surface to the inner surface of the composite, plurality of laminated ceramic-like structures are formed, which may assist further in insulating the heat. Interestingly, these laminated ceramic-like structures are found to be rubber-like and therefore not brittle.

Les panneaux thermo-isolants présentent un vaste champ d'utilisation dans divers domaines, tels que les sites de construction ou les hôpitaux. Ces panneaux requièrent l'utilisation d'adhésifs pouvant générer de la chaleur lorsque les panneaux sont soumis à des températures élevées. Dans le domaine de l'isolation haute température, les céramiques sont friables et risquent de ne pas convenir à certaines applications. L'invention concerne un composite thermo-isolant comprenant une pluralité de verres et une composition de liaison destinée à fusionner ces verres lorsque le composite thermo-isolant est soumis à une température supérieure à 1000 °C. Lors de la diffusion de la chaleur depuis la surface extérieure vers la surface intérieure du composite, on a observé la formation d'une pluralité de structures stratifiées de type céramique, ce qui permet d'encore améliorer l'isolation de la chaleur. Il a été constaté avec intérêt que ces structures stratifiées de type céramique sont similaires au caoutchouc et, donc, ne sont pas friables.

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