Multi-layer composite building insulation board and preparation method thereof

Abstract

The invention discloses a multi-layer composite building insulation board and a preparation method thereof, and belongs to the technical field of insulation boards, the outer layer of the insulation board is provided with a polymer mortar layer, an extruded sheet layer and an outer decorative sheet layer which are in grouting embedded connection, and the bottom end part of the polymer mortar layerextends into the extruded sheet layer and the outer decorative sheet layer; reinforcing steel bar reinforcing pieces are arranged in the upper grouting cavity and the lower grouting cavity to be matched with multiple glass microsphere bags, so that on one hand, the properties of heat insulation, sound insulation, corrosion prevention and the like of the outer layer of the insulation board are effectively enhanced, and on the other hand, the mechanical strength of connection between every two of the polymer mortar layer, the extruded sheet layer and the outer decorative sheet layer is effectively improved; the phenomenon that the outer layer of the heat preservation plate is prone to falling off in the long-term use process is effectively avoided to a certain extent, meanwhile, the inner base plate layer aerogel layer is arranged on the inner side of the heat preservation plate, the aerogel layer is made of a porous and disordered low-density aerogel material of a nano-scale continuousnetwork structure, and the heat insulation effect of the heat preservation plate can be better enhanced.

Description

technical field [0001] The invention relates to the technical field of thermal insulation boards, and more specifically relates to a multilayer composite building thermal insulation board and a preparation method thereof. Background technique [0002] Insulation boards mostly use polystyrene resin as raw material plus other raw and auxiliary materials and polymers. After heating and mixing, catalysts are injected at the same time, and then extruded to form rigid foam plastic boards, and then mixed with polymer mortar, glass, etc. It is made of composite fiber mesh cloth, which integrates the functions of heat preservation, waterproof and decorative surface, which can reduce the thickness of the building's outer protective structure, thereby increasing the indoor usable area. [0003] At present, building insulation boards are mostly constructed by on-site bonding, which is the preferred material to meet the current energy-saving needs of housing construction, improve the ins...

AI Technical Summary

Problems solved by technology

During the bonding process, if the adhesive effect is not good, it may cause shedding after later use; at the same time, in the prior art, when the bonding strength of the on-site construction does not reach a certain level, the When changing, it is difficult to ensure that the insulation board will not be layered or deformed to reduce the compressive and tensile strength of the insulation board

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