Aluminum silicate composite heat-insulating coating for walls

Abstract

The invention discloses an aluminum silicate composite heat-insulating coating for walls, which comprises the following raw materials in percentage by mass: 2 to 3 percent of redispersed latex powder, 13 to 19 percent of aluminum silicate fiber, 1 to 2 percent of cellulose, 0.25 to 0.35 percent of wood fiber, 0.4 to 0.7 percent of polypropylene fiber, 13 to 16 percent of fly ash, 5.5 to 6.4 percent of quartz powder, 16 to 21 percent of closed cell heat-insulating particles, and the balance of cement. The aluminum silicate composite heat-insulating coating for the walls has the advantages of no toxicity or harm, high thermal insulation property, sound absorption performance, water resistance, frost resistance and high-temperature resistance, low shrinkage, no seam in general, avoidance of cold bridge or heat bridge, high cracking resistance, shock resistance and negative wind pressure resistance and light volume weight; the raw materials have high workability, water retentivity and adhesion and difficult hollowness, can be firmly adhered to various geometrical surfaces and are particularly suitable for construction of various special surfaces; during the construction, the coating does not drop or sag, is convenient to construct and has low loss; and the coating is A-grade and non-combustible, and cannot generate harmful gas at a high temperature.

Description

technical field [0001] The invention relates to a thermal insulation coating, in particular to an aluminum silicate composite thermal insulation coating for walls. Background technique [0002] In order to reduce building energy consumption and prolong the service life of buildings, thermal insulation coatings are usually applied on building walls. [0003] Traditional wall insulation materials have high water absorption, easy aging, and large volume changes, resulting in low strength in the later stage of the product, easy to form hollows and cracks, and affect the insulation performance of the coating. [0004] Polyphenylene particles have good thermal insulation performance, and the existing composite thermal insulation coatings are usually added with polyphenylene particles. This certainly helps to improve the thermal insulation performance of the thermal insulation coating, but the thermal insulation coating added with polystyrene particles is flammable, has poor fire ...

AI Technical Summary

Problems solved by technology

This certainly helps to improve the thermal insulation performance of thermal insulation coatings, but thermal insulation coatings added with polystyrene particles are flammable, poor in fire resistance, low in weather resistance, and strong in resilience.

In addition, polyphenylene particles will produce a large amount of harmful gas at high temperature, which is not conducive to the escape of personnel in case of fire

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