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What is the heat-resistant temperature of common thermal insulation materials?
The heat-resistant temperature of asbestos rope is 500℃ for all asbestos fibers, 250℃ for cotton fibers with a content of less than 10% and 350℃ for those filled with magnesium carbonate. The heat-resistant temperature of asbestos cloth is 500℃. The heat-resistant temperature of asbestos thread is 700℃. The heat-resistant temperature of stone cotton yarn is 500℃.
Thermal insulation materials, thermal insulation measures and aerogels used for thermal insulation of industrial equipment and pipelines were first applied to the thermal insulation lining of spacesuits developed by NASA. It has the characteristics of low thermal conductivity, low density, high flexibility, fire prevention and waterproof. Its thermal conductivity at room temperature is 0.018w/(k m), which is absolutely waterproof and its thermal insulation performance is 3~8 times that of traditional materials.
Extended data:
Thermal insulation of organic materials
1. Organic thermal insulation materials mainly include polyurethane foam, polystyrene board and phenolic foam.
2. Organic thermal insulation materials have the advantages of light weight, good processability, high density and good thermal insulation effect, but the disadvantages are: aging resistance, large deformation coefficient, poor stability, poor safety, easy combustion, poor ecological and environmental protection, difficult construction, high project cost, limited resources and difficult recycling.
3. Traditional polystyrene board and inorganic insulation board have excellent insulation effect, which are widely used in the wall insulation material market in China, but they do not have safety and fire prevention performance, especially when burning, they will produce toxic gases. In fact, the use of this material has long been limited to very small application fields in developed countries.
Baidu encyclopedia-heat preservation material
Baidu encyclopedia-heat-resistant temperature
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