High-property non-combustible external wall thermal-insulation decorative sheet and preparation method thereof

Abstract

The invention discloses a high-property non-combustible external wall thermal-insulation decorative sheet. The high-property non-combustible external wall thermal-insulation decorative sheet comprises a base plate which is of a rectangular thin-slab structure and a metal panel box. The upper surface of the base plate is covered with the metal panel box and the periphery of the metal panel box is turned over by 90 degrees to wrap the upper portions of the four side surfaces of the base plate. The portions, abutting against the four side surfaces of the base plate, of the metal panel box are each provided with at least two long-strip-shaped frame notches. The thermal-insulation decorative sheet is good in fire prevention and thermal-insulation property, convenient to install and attractive in appearance. The invention further discloses a preparation method of the high-property non-combustible external wall thermal-insulation decorative sheet. The preparation method mainly includes the three steps of preparation of the base plate, forming of the metal panel box and composite forming of the decorative sheet. All raw materials adopted in the method are easy to obtain and low in price. The decorative sheet obtained through the preparation method has the characteristics of being high in combustion grade, good in thermal-insulation property, low in smoke toxicity, long in service life, good in decorative effect, convenient to clean and maintain in later stage and the like.

Description

Technical field [0001] The invention relates to a thermal insulation decorative board, in particular to a high-performance non-combustible external wall thermal insulation decorative board and a preparation method thereof. Background technique [0002] Conserving resources is our country's basic national policy. In my country, building energy consumption accounts for more than 27% of the total energy consumption. Therefore, the task of external wall insulation and energy saving is arduous and the market has great potential for development. [0003] External wall insulation system can be divided into inorganic insulation system and organic insulation system according to the nature of its main insulation materials: organic insulation system mainly includes organic foam board thin plaster external wall external insulation system, polystyrene board large mold built-in external wall external insulation System; Inorganic thermal insulation system mainly includes mortar thermal insulatio...

AI Technical Summary

Problems solved by technology

The problems existing in the existing external wall insulation system are: (1) Low combustion performance level: the commonly used organic foam board thin plaster external wall insulation system, polystyrene board large mold built-in external wall insulation system insulation material itself is easy Combustible materials, even after flame-retardant treatment, their combustion performance can only reach Class B, even if it is a mortar insulation system, or because it contains polystyrene particles with poor combustion performance, or because the cementitious material contains a certain amount of polyethylene- Polystyrene rubber powder, its combustion performance is also difficult to reach Class A

(2) It is difficult to balance the thermal insulation performance with other performances: the existing thermal insulation systems usually have the problem of poor thermal insulation performance with good thermal insulation performance, and poor thermal insulation performance with good thermal insulation performance; (3) The life of the thermal insulation system is not synchronized with the life of the building: the existing The service life of the insulation system is generally 25 years, which is lower than the design service life of the building, which is 50-70 years; (4) The problem of heat preservation and decoration: the strength of the heat preservation structure is low, and it is not suitable to paste tiles or marble outside the heat preservation system

Images