A kind of reinforced composite heat insulation material and preparation method thereof
A thermal insulation material and reinforced technology, applied in the field of thermal insulation materials, can solve the problems of low pressure, failure to meet the requirements of Class A flame retardant, easy peeling, etc., to reduce the air circulation path, improve the flame retardant effect and mechanical properties, The effect of improving composite strength
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Embodiment 1
[0026] A reinforced composite heat insulation material, comprising sequentially arranged aluminum foil, modified PET film, modified polyethylene adhesive film, stainless steel grid, modified gas retardant bag, modified polyethylene adhesive film, fiber grid, Flame-retardant and anti-glare polypropylene film; among them, the aluminum foil is a high-mirror aluminum foil with a purity ≥ 99.99%, the modified PET film is a PET film modified by SiC / Mo-PDA, and the modified gas-resistant cells are hexagons arranged in a honeycomb shape For the airbag, the fiber mesh is a composite woven mesh of nylon fiber and carbon fiber.
[0027] The preparation method of the above-mentioned reinforced composite thermal insulation material comprises the following steps:
[0028] a) Preparation of SiC / polydopamine complex: Disperse the nano-SiC powder in ethanol, adjust the pH to 10-11 with ammonia water, add H 24 Mo 7 N 6 o 24 4H 2 O (ammonium molybdate tetrahydrate), adjust the pH to 9-9.5, ...
Embodiment 2
[0036] A reinforced composite heat insulation material, comprising sequentially arranged aluminum foil, modified PET film, modified polyethylene adhesive film, stainless steel grid, modified gas retardant bag, modified polyethylene adhesive film, fiber grid, Flame-retardant and anti-glare polypropylene film; among them, the aluminum foil is a high-mirror aluminum foil with a purity ≥ 99.99%, the modified PET film is a PET film modified by SiC / W-PDA, and the modified gas-resistant bag is hexagonal arranged in a honeycomb shape For the airbag, the fiber mesh is a composite woven mesh of nylon fiber and carbon fiber.
[0037] The preparation method of the above-mentioned reinforced composite thermal insulation material comprises the following steps:
[0038]a) Preparation of SiC / polydopamine complex: Disperse the nano-SiC powder in ethanol, adjust the pH to 10-11 with ammonia water, add Na 2 WO 4 2H 2 O (sodium tungstate dihydrate), adjust the pH to 9-9.5, then add dropwise 98...
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