Novel wall lightweight heat-insulating material and method for preparing same

Abstract

The present invention discloses a new type wall body light heat-preservation material, which is characterized in that: the present invention comprises the following raw materials according to the weight ratio: 10-15 percent of magnesia or magnesium hydrate, 3- 7 percent of magnesium chloride, 4-8 percent of perlite, 1-5 percent of alkali resisting fibre, 6-12 percent of powder coal ash or calcium carbonate and 0.3-1 percent of modifier, wherein, the modifier is made of the following components according to weight ratio: 6-10 percent of ferrous sulfate, 1-3 percent of oxalic acid, 1-3 percent of tertiary sodium phosphate, 0.5-2 percent of hexametaphosphate and 12-18 percent of aluminium sulphate. Compared with the original heat-preservation system, the material is with much better heat-preservation performance, much lower heat-conductivity coefficient, much lower density, and much lower water content and water absorption ability. The present invention is with much better performance in heat-preservation, heat-insulation as well as sound absorption and sound insulation and so on. The present is able to bear or endure acid, alkali and corrupted. The manufacturing cost is much lower and the construction process is much more convenient. The present is easy to be popularized.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a novel wall insulation material and a preparation method thereof. Background technique [0002] With the continuous development of science and technology, the demand for environmentally friendly and non-toxic decorative materials is gradually increasing. People put forward higher requirements for building materials, and the original materials are becoming less and less suitable for people's needs. The new material replaces the old material, and the thermal insulation and fireproof material market is the same. The original wall insulation material is not ideal in various performances, especially in the aspects of heat insulation, fire prevention and heat preservation. In short, it has the following disadvantages: toxic , Non-degradable inorganic materials cause secondary pollution, cumbersome construction, high unit cost, no fire resistance, no high temperature resista...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of science and technology, the demand for environmentally friendly and non-toxic decorative materials is gradually increasing. People put forward higher requirements for building materials, and the original materials are becoming less and less suitable for people's needs. The new material replaces the old material, and the thermal insulation and fireproof material market is the same. The original wall insulation material is not ideal in various performances, especially in the aspects of heat insulation, fire prevention and heat preservation. In short, it has the following disadvantages: toxic , Non-degradable inorganic materials cause secondary pollution, cumbersome construction, high unit cost, no fire resistance, no high temperature resistance, no acid and alkali resistance, no corrosion resistance, solvent-based coatings cannot be used on the surface, the thermal conductivity is large, and the adhesion Poor, easy to fall off