Heat-insulating flame-retardant plate and preparation method thereof

Abstract

The invention belongs to the technical field of heat insulation and flame retardance, and discloses a heat-insulating flame-retardant plate and a preparation method thereof. The heat-insulating flame-retardant plate comprises a base material layer, a flame-retardant coating layer, a first protective layer and a second protective layer; the flame-retardant coating layer is sprayed on the peripheryof the base material layer, and the first protective layer and the second protective layer are attached to the upper surface and the lower surface of the flame-retardant coating layer respectively. The preparation method comprises the steps: according to the composition of the flame-retardant coating layer, uniformly stirring the raw materials to obtain a flame-retardant coating; blowing and cleaning the surface of an aerogel felt to obtain a felt body A; spraying the flame-retardant coating on the periphery of the felt body A, and drying to obtain a felt body B; and attaching the first protective layer and the second protective layer to the upper surface and the lower surface of the felt body B correspondingly, and carrying out hot press molding, to obtain the heat-insulating flame-retardant plate. The protective layer is attached to the outer side of the flame-retardant coating layer, a good binding force is formed between the flame-retardant coating layer and the aerogel felt in thehot press molding process, and the obtained heat-insulating flame-retardant plate is good in integrity and excellent in performance.

Description

technical field [0001] The invention belongs to the technical field of heat insulation and flame retardant, and in particular relates to a heat insulation and flame retardant plate and a preparation method thereof. Background technique [0002] At present, my country's high-energy buildings account for more than 95% of the total building area, and the heating energy consumption per unit area is equivalent to 2-3 times that of developed countries with similar climate conditions. Building energy consumption is huge. Order No. 143 of the Ministry of Construction of the People's Republic of China "Civil Building Energy Conservation Management Regulations" stipulates that in urban construction in my country, building energy conservation standards must be implemented in planning, design, construction and use, and building structures must be treated with thermal insulation engineering. However, due to the traditional building heat insulation materials, such as EPS board, XPS board,...

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Problems solved by technology

Inorganic thermal insulation materials, such as rock wool, mineral wool, glass wool, foam concrete, vitrified microspheres, etc., although the combustion performance reaches Class A, the thermal insulation performance is not good, and even fails when exposed to water. It is difficult to achieve ideal thermal insulation when used alone Thermal insulation and energy saving effect