Level-A flame-retardant aluminum oil bubble heat-insulation material and preparation method thereof
A technology of thermal insulation materials and air bubbles, applied in the field of thermal insulation materials, can solve the problems of high thermal conductivity of inorganic thermal insulation materials, environmental and human health hazards, etc., to solve the problem of easy cracking of silica, improve thermal insulation and flame retardancy, The effect of low production cost
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[0028] Example 1
[0029] A class A flame-retardant aluminum foil bubble heat insulation material, comprising a flame-retardant bubble layer, wherein one side of the flame-retardant bubble layer is sequentially provided with a flame-retardant adhesive layer, an aluminum foil layer and an aerogel layer; The bubble layer is composed of a honeycomb-arranged hexagonal bubble structure filled with nitrogen. The flame-retardant bubble layer contains 80 parts by weight of low-density polyethylene and 40 parts by weight of a compound flame retardant.
[0030] The compound flame retardant contains the following components in parts by weight: 11 parts of nano alumina, 17 parts of 600 mesh α-silicon nitride, 25 parts of phenolic resin, 15 parts of ethylene-vinyl acetate polymer, and silane coupling 6 parts. The aerogel layer is made of components comprising the following parts by weight: 10 parts of silica aerogel, 25 parts of propylene oxide, 100 parts of acetic acid, 60 parts of polyethyle...
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[0037] Example 2
[0038] A class A flame-retardant aluminum foil bubble heat insulation material, comprising a flame-retardant bubble layer, wherein one side of the flame-retardant bubble layer is sequentially provided with a flame-retardant adhesive layer, an aluminum foil layer and an aerogel layer; The bubble layer is composed of a hexagonal bubble structure in a honeycomb arrangement filled with nitrogen, and the flame-retardant bubble layer contains 50 parts by weight of low-density polyethylene and 20 parts by weight of a compound flame retardant.
[0039] The compound flame retardant contains the following components by weight: 12 parts of nano alumina, 18 parts of 1000 mesh α-silicon nitride, 30 parts of phenolic resin, 30 parts of ethylene-vinyl acetate polymer, 8 parts of silane Coupling agent. The aerogel layer is made of components comprising the following parts by weight: 20 parts of silica aerogel, 30 parts of propylene oxide, 130 parts of acetic acid, 70 parts of p...
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