A kind of reinforced composite heat insulation material and preparation method thereof

Abstract

The invention provides a nanometer composite thermal insulation material and a preparation method of the nanometer composite thermal insulation material. The nanometer composite thermal insulation material is characterized by comprising an aluminum foil, a modified PET (polyethylene terephthalate) film, a modified polyethylene adhesive film, a stainless steel grid, a modified flame retardant air bag, a modified polyethylene adhesive film, a fiber grid, and a flame retardant anti-glare polypropylene film which are sequentially arranged; and the PET film is a SiC/polydopamine complex modified PET film. By improving the composite strength of a skeleton and reducing the ventilation path, the flame retardant effect and the mechanical strength of the aluminum foil bubble thermal insulation material are improved.

Description

【Technical field】 [0001] The invention relates to the field of thermal insulation materials, in particular to a reinforced composite thermal insulation material and a preparation method thereof. 【Background technique】 [0002] The energy consumed by industrial buildings and maintaining a comfortable indoor temperature accounts for more than 30% of the world's total annual energy consumption. The use of thermal insulation materials can improve the energy utilization rate of buildings and reduce energy consumption. However, the thermal conductivity of inorganic thermal insulation materials is generally high, traditional organic thermal insulation materials are generally flammable, and the use of organic flame retardants will cause harm to the environment and human health. Therefore, the importance of thermal insulation materials with good fire performance in modern buildings has become more and more obvious. How to further improve the combustion performance of thermal insulati...

AI Technical Summary

Problems solved by technology

[0003] Aluminum foil bubble insulation material is a kind of good green building insulation material. It generally adopts the structural design of multi-layer aluminum foil + air bag + aluminum foil, which is light in weight and low in heat conduction. If the flame retardant is improved, the flame retardant effect is not ideal, and it cannot meet the requirements of Class A flame retardant; at the same time, the mechanical strength of this insulation material is poor, and the pressure it can bear alone is very low, and the layers are easy to peel off, which cannot meet the pressure bearing requirements. occasions with certain requirements