Grade-A non-combustible inorganic thermal insulation plaster and preparation method thereof

Abstract

The invention provides grade-A non-combustible inorganic thermal insulation plaster and a preparation method thereof. The thermal insulation plaster is prepared from components as follows: a modifiedemulsion, hollow glass beads, sepiolite powder, fly ash, ash calcium powder, anti-crack fiber, a coalescing agent, a wetting agent, a deforming agent, a water retention thickener and water. The plaster forms a novel wall thermal insulation product with a plastering layer and a finish layer. The plaster has the advantages of being grade-A non-combustible, low in heat conductivity coefficient, highin strength, sound-insulating, hydrophobic, convenient in construction and suitable for special-shaped wall construction. Besides, the product is plaster-like product prepared in factories and packaged quantitatively and can be directly used for construction without preparation at construction sites, and environmental protection is really realized. The product can be applied to wall energy-savingand thermal-insulation projects of newly built, extended and rebuilt civil and industrial buildings and energy-saving and thermal-insulation transformation of existing buildings.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a grade A non-combustible inorganic thermal insulation paste and a preparation method thereof. Background technique [0002] In the field of thermal insulation mortar technology, the insulation properties of rubber powder polystyrene particle thermal insulation mortar and inorganic vitrified microbead thermal insulation mortar are superior. Generally speaking, the choice of rubber powder polystyrene particle thermal insulation mortar is mainly from the cost aspect. The engineering insulation layer of polystyrene particle insulation sand is relatively low in cost, but its safety performance is not high. Due to its low temperature resistance and flammability, it has been used less and less in recent years, especially in buildings using rubber powder polystyrene particle insulation mortar. and apartments are prone to fires, the material will eventually be replac...

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Problems solved by technology

[0002] In the field of thermal insulation mortar technology, the insulation properties of rubber powder polystyrene particle thermal insulation mortar and inorganic vitrified microbead thermal insulation mortar are superior. Generally speaking, the choice of rubber powder polystyrene particle thermal insulation mortar is mainly from the cost aspect. The engineering insulation layer of polystyrene particle insulation sand is relatively low in cost, but its safety performance is not high. Due to its low temperature resistance and flammability, it has been used less and less in recent years, especially in buildings using rubber powder polystyrene particle insulation mortar. and apartments are prone to fire, the material will eventually be replaced by other materials

[0003] Inorganic vitrified microbead thermal insulation mortar is relatively safe because it is composed of non-combustible inorganic materials. The main indicators of vitrified microbead inorganic thermal insulation mortar are: dry density ≤ 350kg / m3, compressive strength ≥ 0.4MPa, thermal conductivity ≤ 0.070W / (m·k), combustion grade A; but its construction is to add water and stir on site, which will cause dust pollution on site and affect air quality

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