Flame-proof damp-proof heat insulation film

Abstract

The invention discloses a new style composite material film which is fire-retarded, thermal insulating and heat insulating. It contains high molecular backing layer, bond, aluminized carrier layer, high-vacuum copper-doped obstructing aluminized layer and organic silicon protective layer with obstruction of oxygen. It is characterized in that: locate high molecular sheet in the middle and set bond, aluminized carrier layer, high-vacuum copper-doped obstructing aluminized layer and organic silicon protective layer above it in turn. On the other side, set these layers downward in turn. Integrate all these functional layers and the high molecular sheet compactly to realize functions of waterproof, damp-proof, anti-mildew, thermal insulation and heat insulation. As building materials, it can be extensively used in exterior-protected construction of civil and industrial architecture for energy saving, which can reduce the construction cost and be as thermal insulating and heat insulating materials for car and ship.

Description

technical field [0001] The invention relates to a composite building material, in particular to a multilayer composite multifunctional building energy-saving material, in particular to a flame-retardant, moisture-proof and heat-insulating film. Background technique [0002] In the current construction industry, the building energy-saving materials used often have a single function. The following several commonly used materials combined with their functions will be described in detail: [0003] 1. PVC waterproof roll material: only has waterproof function, but fails to block the solar radiation heat, so that the temperature of the roof of the building rises sharply after solar radiation, the aging of the material is accelerated, and the waterproof function is lost; [0004] 2. Heat reflective film or aluminized film: The aluminum layer will be quickly oxidized by moisture when exposed to the air and lose its heat reflection function. Often only the base material of the alumin...

AI Technical Summary

Problems solved by technology

[0003] 1. PVC waterproof roll material: only has waterproof function, but fails to block the solar radiation heat, so that the temperature of the roof of the building rises sharply after solar radiation, the aging of the material is accelerated, and the waterproof function is lost;

[0004] 2. Heat reflective film or aluminized film: The aluminum layer will be quickly oxidized by moisture when exposed to the air and lose its heat reflection function. Often only the base material of the aluminized film is exposed to the outside to reflect radiant heat. However, due to the base material The material has a great absorption of radiated heat from low-temperature heat sources (such as tiles and concrete roofs after being irradiated by the sun), so the aluminum coating can only reflect the radiant energy in the solar spectrum range, but cannot reflect the radiation energy after being irradiated by the sun. The radiation generated by tiles and concrete roofs, as the heat insulation film used under the tiles, the heat insulation performance of ordinary heat insulation film is greatly reduced because the radiation heat transfer barrier of low temperature heat source is not solved;

[0005] 3. Porous roof insulation materials (such as mineral wool board / expanded perlite / foamed polyethylene board): they all rely on the dry air in the pores of the material to block the heat transfer on both sides of the material. Once these materials are damp and water vapor invades, The barrier function of heat transfer is greatly reduced, and the surface of these materials has a high absorption rate for both the radiant heat of the sun and the secondary heat radiation generated by the tile / concrete roof after absorbing solar radiation, thus accelerating the heat transfer. Further transmission, the insulation effect is greatly reduced

[0006] 4. The flame-retardant sheets are all made of PVC. Because they contain chlorine, a large amount of toxic hydrogen chloride gas will be produced in case of fire or high temperature, which will directly endanger the lives of indoor personnel, so they can only be used outdoors as waterproof materials.

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