Fireproof high-temperature-resistant building outer wall board

Abstract

The invention discloses a fireproof high-temperature-resistant building outer wall board, which comprises a base layer, a heat insulation layer, a surface mortar layer, a fireproof high-temperature-resistant layer, a waterproof layer and a decoration wear-resistant coating in sequential arrangement from inside to outside, wherein the fireproof high-temperature-resistant layer is prepared from the following raw materials in parts by weight: 109 to 112 parts of modified phenolic resin, 25 to 28 parts of alkyd resin, 22 to 25 parts of ethylene-ethylic acid ethylene copolymer, 13 to 16 parts of polyether sulfone, 0.7 to 1.0 part of silane coupling agents, 18 to 21 parts of polyacrylonitrile fiber, 22 to 25 parts of ramie, 22 to 25 parts of kieselguhr, 14 to 17 parts of nanosilicon dioxide, 33 to 36 parts of ground limestone, 16 to 19 parts of melamine pyrophosphate and 2 to 3 parts of anti-aging agents. A preparation method of the modified phenolic resin comprises the following steps that hydroquinone and diphenyl chlorophosphate take a reaction; then, p-nitrobenzaldehyde is added for reaction; boracic acid and acidized ammonium molybdate are added for reaction to obtain modified phenolic resin.

Description

technical field [0001] The invention relates to the technical field of buildings, in particular to a fireproof and high temperature resistant building exterior wall panel. Background technique [0002] At present, the total energy consumption of buildings in my country has exceeded 30% of the total primary energy consumption, ranking first in energy consumption, and the proportion of building energy consumption in my country's energy consumption is still increasing year by year. Building energy conservation has become one of the key areas of energy conservation in the whole society. First, the energy-saving and thermal insulation of building exterior walls is one of the key points of building energy-saving and consumption-reducing. At present, building exterior wall panels often have good thermal insulation effect, but poor fireproof performance and low bonding strength, which are difficult to meet the current needs of building exterior wall panels. Contents of the inventio...

AI Technical Summary

Problems solved by technology

At present, building exterior wall panels often have good thermal insulation effect, but poor fireproof performance and low bonding strength, which are difficult to meet the current needs of building exterior wall panels