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Nano silicon thermal insulation material and preparation method thereof
The invention provides a nano silicon thermal insulation material. The nano silicon thermal insulation material comprises a high temperature layer and a low temperature layer which is composited onto the high temperature layer; the low temperature layer consists of 60 to 80 parts by weight of nano silicon dioxide, 5 to 15 parts by weight of inorganic fibers and 15 to 35 parts of carbon black; the high temperature layer consists of 60 to 80 parts by weight of nano silicon dioxide, 5 to 15 parts by weight of inorganic fibers and 15 to 35 parts of an infrared shading agent; the infrared shading agent is one or more of titanium dioxide, zirconia, silicon carbide and potassium hexatitanate whisker. According to the nano silicon thermal insulation material, the effective extinction coefficient and the temperature resistance of different infrared shading agents of different types are adequately utilized, and the nano silicon thermal insulation material with ultralow heat conduction coefficient which can be used in a high temperature area can be prepared by utilizing different infrared shading agents of different types in a gradient manner.
Nano silicon thermal insulation material and preparation method thereof
The invention provides a nano silicon thermal insulation material. The nano silicon thermal insulation material comprises a high temperature layer and a low temperature layer which is composited onto the high temperature layer; the low temperature layer consists of 60 to 80 parts by weight of nano silicon dioxide, 5 to 15 parts by weight of inorganic fibers and 15 to 35 parts of carbon black; the high temperature layer consists of 60 to 80 parts by weight of nano silicon dioxide, 5 to 15 parts by weight of inorganic fibers and 15 to 35 parts of an infrared shading agent; the infrared shading agent is one or more of titanium dioxide, zirconia, silicon carbide and potassium hexatitanate whisker. According to the nano silicon thermal insulation material, the effective extinction coefficient and the temperature resistance of different infrared shading agents of different types are adequately utilized, and the nano silicon thermal insulation material with ultralow heat conduction coefficient which can be used in a high temperature area can be prepared by utilizing different infrared shading agents of different types in a gradient manner.
Nano silicon thermal insulation material and preparation method thereof
ZHANG CHENGHE (author) / LIU CHAO (author) / REN DAGUI (author) / ZHANG CHENG (author)
2015-04-01
Patent
Electronic Resource
English
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