Heat insulation composite plate of outer wall and preparation method thereof

Abstract

The invention discloses a heat insulation composite plate of an outer wall. The heat insulation composite plate comprises an upper panel, a lower panel and a core material, wherein the upper panel and the lower panel are made of various building outer wall heat insulation materials; the core material is made of various heat insulation materials; two faces of the upper and lower panels are respectively provided with one layer of glass fiber gridding cloth and non-woven fabric; and strip-shaped heat insulation materials are between the upper plane and the lower panel; 2-3 mm of gaps exist among the strip-shaped heat insulation materials; and reinforcing ribs made of the building outer wall heat insulation materials are arranged in the gaps and wrapped with the glass fiber gridding cloth. The heat insulation composite plate of the outer wall, disclosed by the invention, has the advantages of capability of being produced continuously, once molding, no layering, high bonding strength, good toughness, impact resistance, weight reduced by 60%, easy construction, moderate single plate surface, easy splicing, capability of being sawn, nailed and anchored, convenience in operation, high construction speed, low comprehensive manufacturing price and capability of largely reducing the constructional engineering cost; and by means of the heat insulation composite plate, the weight of the building main structure is reduced, the construction of the heat insulation composite plate is more than two times faster than that of the traditional layered construction, the cost and time are saved, and the construction quality is largely improved.

Description

technical field [0001] The invention relates to a building material, in particular to an exterior wall thermal insulation composite board and a preparation method thereof. Background technique [0002] The history of implementing external wall insulation in our country is relatively short, so there are few types of products and a single method. At present, plastering mortar and sticky insulation boards are mainly used in large-scale implementation. Although this process has made great progress, there are still a series of quality problems such as poor surface flatness, cracks, and deformation. Because it is an on-site construction operation and there are so many construction workers, it is difficult to carry out effective quality assurance management. With the deepening popularization and development of energy saving and heat preservation, exterior wall insulation board products with calcium silicate board bonded insulation boards have also appeared on the market. This prod...

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Problems solved by technology

[0002] The history of implementing external wall insulation in my country is relatively short, so there are few types of products and single methods

At present, large-scale implementation is still mainly based on plastering mortar and sticking insulation boards. Although this process has made great progress, there are still a series of quality problems such as poor surface flatness, cracks, and deformation.

Because it is an on-site construction operation and there are so many construction workers, it is difficult to carry out effective quality assurance management

With the deepening popularization and development of energy saving and heat preservation, exterior wall insulation board products with calcium silicate board bonded insulation boards have also appeared on the market. This product has represented a good situation from on-site construction to factory production, but this kind The production of external wall insulation board products is not one-time molding, but the finished board is sanded and then coated with special glue for bonding. overall problem

In addition, the calcium silicate board itself is a brittle material, and its impact strength is poor. Especially in areas with strong wind, cracks and shedding may occur due to the damage of wind force and negative wind pressure. In addition, there is a problem of high production cost.

Because the rock wool board has good thermal insulation effect and fireproof performance, the application prospect is promising, but the current use method of the rock wool board is single, which cannot overcome the defects of the rock wool board itself, such as easy pulverization, low strength, water absorption, and voids , poor flatness, etc., so it cannot be directly used as an external wall insulation material, and is only limited to local insulation materials

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