Acid and alkali resistant heat insulation material

Abstract

The invention discloses an acid and alkali resistant heat insulation material; an XPE foam material layer serves as an intermediate base layer; a first polyethylene layer is adhered on the upper surface of the XPE foam material layer, a polyester polymer film layer is adhered on the upper surface of the first polyethylene layer, a first aluminum film layer is adhered on the upper surface of the polyester film layer, a first protective layer is arranged on the upper surface of the first aluminum film layer, a second polyethylene layer is adhered on the lower surface of the XPE foam material layer, a woven cloth layer or a non-woven cloth layer prepared from polyethylene or polypropylene is adhered on the lower surface of the second polyethylene layer, a second aluminum film layer is adhered on the lower surface of the woven cloth layer or the non-woven cloth layer, and a second protective layer is arranged on the upper surface of the second aluminum film layer. The heat insulation material has the advantages of high corrosion resistance, high flame resistance and high heat insulation, and simultaneously has the excellent performance of high strength, high heat insulation and the like.

Description

technical field [0001] The invention relates to a building material, in particular to a heat insulating material for building. Background technique [0002] With the current global warming, in the environment of low-carbon economy, the state vigorously encourages and promotes energy conservation and emission reduction, and environmental protection and energy-saving buildings are an important part. At present, the building roof and wall heat insulation materials commonly used in the market are heat insulation materials formed by EPE foam or non-woven cloth and aluminum film single-layer composite. But it generally has the following disadvantages: first, EPE foam or non-woven fabric and other materials have poor shock absorption performance, and are easy to oxidize and corrode, and have a low service life. Generally, it will gradually lose its waterproof and heat preservation functions in two to three years. Secondly, this material has low tensile strength and longitudinal a...

AI Technical Summary

Problems solved by technology

But it generally has the following disadvantages: first, EPE foam or non-woven fabric and other materials have poor shock absorption performance, and are easy to oxidize and corrode, and have a low service life.

Secondly, this material has low tensile strength and longitudinal and transverse tensile strength, and is easy to break when it comes into contact with foreign objects or under heavy pressure. Moreover, due to poor surface flatness, the reflectivity of sunlight is low; heat insulation and heat preservation performance are relatively poor

Thirdly, there is no air barrier layer in the middle of this material, and the internal and external energy is easy to form convection and conduction, which affects the heat insulation performance

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