Light heat insulation board for decoration

Abstract

The invention discloses a light heat insulation board for decoration. The light heat insulation board for decoration comprises a core material and fabric surfaces arranged on two surfaces of the core material, wherein a polymer mortar layer is arranged on the outer surface of each fabric surface and is composed of, by weight, 200-250 parts of cement, 500-550 parts of glazed hollow beads, 50-80 parts of heavy calcium carbonate powder, 20-30 parts of redispersible emulsion powder, 2-4 parts of water-retaining agents, 0.5-1 part of defoaming agents, 1-2 parts of polypropylene fibers, 2-3 parts of water repellents and 200-250 parts of water. The core material is a waterproof rock wool heat insulation board. The light heat insulation board for decoration has the beneficial effects that not only is the heat insulation performance excellent, but also the fireproof performance is good; and the fabric surfaces provide needed shock resistance, waterproofing and anti-leakage performance and crack resistance for the core material, and the defects that an ordinary inorganic heat insulation board is poor in waterproofness and low in surface intensity are overcome.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a light thermal insulation board for decoration. Background technique [0002] The current wall insulation materials mainly include molded expanded polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU) and other organic insulation boards and insulation mortars. Although the thermal conductivity of organic thermal insulation materials is low, their fire safety performance is generally poor. The non-combustibility can only reach B1 level, and toxic and harmful gases are easily produced during the combustion process. Once a fire occurs, it often causes heavy casualties and property. loss. Among the organic insulation materials, EPS and XPS will melt and drip in case of fire, which may easily cause the spread of fire. XPS has been controversial since its birth. Problems such as high strength, poor air permeability, difficult bonding, and ...

AI Technical Summary

Problems solved by technology

The main manifestations are cracking of the insulation layer, poor thermal insulation performance, expansion and high dry density, etc. The thermal conductivity of the slurry is much higher than the standard value, and the energy saving effect that can be achieved is limited.

As far as vitrified microbead thermal insulation slurry is concerned, expanded perlite is often used instead of vitrified microbeads in practical applications. Due to its poor strength, it is easily broken when stirred, resulting in high dry density of vitrified microbead thermal insulation slurry and solidification of the slurry. After that, water absorption and expansion can easily cause damage, and these factors have greatly affected the thermal insulation performance of the slurry.

In short, the application of inorganic vitrified microbead thermal insulation mortar in cold regions has been limited due to its own shortcomings such as high water absorption, high thermal conductivity, and easy hollowing and cracking, especially the difficulty in controlling the quality of on-site construction.

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