Refractory paint applied to surfaces of foamed aluminum

Abstract

The invention belongs to the technical field of fireproof materials, and particularly relates to refractory paint applied to surfaces of foamed aluminum. The refractory paint comprises a paint mixtureA and a paint mixture B, wherein the paint mixture A comprises the following raw materials in parts by weight: 40-53 parts of water-soluble polyester emulsion, 34-50 parts of polyolefin hot melt adhesive and 15-35 parts of graphite powder; and the paint mixture B comprises the following raw materials in parts by weight: 30-55 parts of silastic raw rubber, 15-28 parts of organic silicone resin, 4-9 parts of inorganic nanometer crystal whiskers, 0.5-2 parts of SEBS and 0.1-0.5 part of an initiating agent. The paint mixture A and the paint mixture B are sequentially sprayed to the foamed aluminum surfaces to form overlapping coating. In the refractory paint disclosed by the invention, the paint mixture A can significantly improve the heat quantity dissipating capacity of the foamed aluminumsurfaces, and improve heat-conducting properties; and the paint mixture B can guarantee the stiffness holding capacity of foamed aluminum materials at high temperatures, prevent the foamed aluminum materials from softening due to high temperature effects and guarantee the reliability of the foam aluminum materials used at high temperature.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a refractory paint applied on the surface of foamed aluminum. Background technique [0002] Aluminum foam is a new type of multifunctional foam material, which has many excellent properties of metal and air bubbles. It has been widely used in construction, transportation and other industries in the civilian field. Aluminum foam material has light weight, sound insulation, and absorption Acoustic, noise reduction, flame retardant and other performance characteristics, according to whether the pores are connected or not and the pore structure can be divided into two types: closed-cell type and open-cell type. The closed-cell structure is that its internal cells are independent of each other and separated by the parent metal, and each cell is closed; the open-cell structure refers to the internal cells connected to each other, and a single cell is not closed...

AI Technical Summary

Problems solved by technology

However, the foamed aluminum material is prone to softening under high temperature baking. When used as a load-bearing material or subjected to external forces, the foamed aluminum material often cannot maintain a good shape, causing the material to collapse and lead to secondary accidents.