Expanded perlite light heat-insulation decorative integrated plate and preparation method thereof

Abstract

The invention discloses an expanded perlite light heat-insulation decorative integrated plate and a preparation method thereof. The expanded perlite light heat-insulation decorative integrated plate sequentially comprises an expanded perlite heat-insulation inner core, fiber mesh cloth, a hardening layer and a real stone paint finish coat from inside to outside. The preparation method of the expanded perlite heat-insulation inner core comprises the following steps: 1) wetting expanded perlite with water, and uniformly stirring for later use; 2) mixing the wetted expanded perlite in the step 1)with a sodium silicate aqueous solution, and uniformly stirring for later use; and 3) transferring the uniformly stirred mixture in the step (2) into a mold, integrally compressing the mixture in themold until the volume of the mixture reaches 60-80% of the original volume, demolding, and naturally drying until the moisture is completely evaporated to obtain the expanded perlite heat-insulationinner core. The expanded perlite light heat-insulation decorative integrated plate is integrally made of an inorganic material, is high in fireproof and flame retardant grade, meanwhile has functionsof light weight, heat insulation, decoration and the like, and can be directly applied to the fields of heat insulation of external walls of industrial and civil buildings.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, and in particular relates to an expanded perlite lightweight thermal insulation and decoration integrated board and a preparation method thereof. Background technique [0002] At present, most building insulation materials use polystyrene boards, foam boards and other materials, but due to the reasons of organic materials themselves, they cannot meet the requirements of fire and flame retardancy. After several accidents, the use of organic materials as external wall insulation materials is gradually prohibited. , Inorganic thermal insulation materials are getting more and more attention. At the same time, due to various uncertainties in on-site construction, the bonding strength between the insulation board and the outer hardened insulation layer cannot be guaranteed, which also gave birth to the appearance of the insulation and decoration integrated board. [0003] The main componen...

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Problems solved by technology

[0002] At present, most building insulation materials use polystyrene boards, foam boards and other materials, but due to the reasons of organic materials themselves, they cannot meet the requirements of fire and flame retardancy. After several accidents, the use of organic materials as external wall insulation materials is gradually prohibited. , inorganic insulation materials are getting more and more attention

At the same time, due to various uncertainties in on-site construction, the bonding strength between the insulation board and the outer hardened insulation layer cannot be guaranteed, which also gave birth to the appearance of the insulation and decoration integrated board.

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