Flame-retardant, heat-insulating and sound-insulating material for aircraft

Abstract

The invention discloses a flame-retardant, heat-insulating and sound-insulating material for an aircraft. The flame-retardant, heat-insulating and sound-insulating material sequentially comprises a mirror surface aluminum foil layer, a first polyvinyl fluoride film layer, a first nylon grid layer, a glass wool felt layer, a flame-retardant bubble layer, a polyester film layer, a second nylon gridlayer and a second polyvinyl fluoride film layer from outside to inside; the flame-retardant bubble layer comprises a plurality of closed-pore structure bubbles arranged in a matrix, and a flame retardant is arranged in the bubbles; and packaging is carried out between the first polyvinyl fluoride film layer and the second polyvinyl fluoride film layer. The mirror surface aluminum foil adopting anano-coating has extremely high reflectivity and can effectively reduce heat radiation. The reflecting layer and the flame-retardant bubble layer of the aluminum foil are utilized to realize multipleeffects of heat insulation, heat preservation, corrosion prevention and the like, and an aviation-grade glass wool felt is selected, so that the product has excellent heat insulation, sound absorptionand noise reduction performances. The flame-retardant, heat-insulating and sound-insulating material for the aircraft has the characteristics of flame retardance, light weight, thin layer, heat insulation, sound absorption, noise reduction, high efficiency, energy conservation, water resistance, outer protection and the like.

Description

technical field [0001] The invention relates to a flame-retardant, heat-insulating and sound-insulating material for aircraft, which belongs to the technical field of new materials. Background technique [0002] Commercial airliners usually cruise at an altitude of 10,000 meters above the ground, and the temperature outside the cabin can be as low as -65°C. In order to create a suitable temperature environment for the cabin, it is necessary to design a reasonable thermal insulation structure for the aircraft. The insulation structure of the aircraft is mainly composed of metal skin, insulation layer and decorative lining. The insulation material used on existing aircraft is glass fiber felt. The porous texture of this material is very easy to absorb moisture, especially when the aircraft is parked at an airport with high humidity, the moisture absorption phenomenon will be more serious. When the aircraft is cruising, the insulation layer bears a large temperature differenc...

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Problems solved by technology

[0003] At present, the properties of glass wool and packaging membrane materials in the market are uneven, and the glass wool and packaging membrane materials in aerospace a

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