Fireproof heat-insulation board for outer walls and preparation method of fireproof heat-insulation board

Abstract

The invention discloses a fireproof heat-insulation board for outer walls and a preparation method of the fireproof heat-insulation board. The fireproof heat-insulation board comprises the following raw materials in parts by weight: 30-50 parts of diatomite, 25-45 parts of aluminum silicate, 10-20 parts of hollow micro beads, 5-10 parts of phenolic resin, 2-6 parts of dispersible latex powder, 1-3parts of reinforced fibers, 0.5-1.5 parts of polypropylene fibers, 2-6 parts of heavy calcium carbonate, 0.2-0.6 part of a binder, 0.7-1.5 parts of a curing agent, 0.5-1.4 parts of a sintering aid and 30-40 parts of deionized water. The fireproof heat-insulation board provided by the invention has a volume weight of less than 200kg / m<3>, a thermal conductivity of less than 0.045 W / m*K and a compressive strength of more than 1.5 MPa. The fireproof heat-insulation board does not burn in fire, is smokeless, can withstand a high temperature of about 1000 DEGC, and is not deformed in the high temperature, the fireproof performance reaches a level of A, and the requirement of outer walls to fireproof and heat-insulation materials can be met.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an exterior wall fireproof and thermal insulation board and a preparation method thereof. Background technique [0002] In recent years, the occurrence of many building insulation fire incidents has aroused the thinking of all walks of life on thermal insulation and fire prevention. However, many fires of insulation materials are caused during the construction process, such as: electric welding, open flames, and bad construction habits. During the burning process of these materials, the molten droplets and toxic smoke are continuously produced, and the harm to the environment of the released gases such as chlorofluorocarbons, hydrofluorocarbons, and freons cannot be ignored. For this reason, the Ministry of Housing and Urban-Rural Development and the Ministry of Public Security jointly issued the "Interim Provisions on Fire Protection of Civil Building External Therma...

AI Technical Summary

Problems solved by technology

The application is made of thermal insulation layer and protective layer, with cement and polystyrene particles as the main raw materials, adding expanded vitrified microspheres and other external wall insulation boards made by composite technology. The manufacturing process is relatively complicated. The invention The rapid-hardening sulfoaluminate cement used in the insulation layer reaches more than 80% by weight, which will inevitably lead to a large bulk density.