Composite fireproof insulation board and preparation method thereof

Abstract

The invention discloses a composite fireproof insulation board and a preparation method thereof. The composite fireproof insulation board can be selected from a two-layer structure including an insulation layer and an inorganic fireproof insulation layer or a three-layer structure including an insulation layer, an inorganic fireproof insulation layer and a mortar protection layer; the insulation layer is selected from one of a polyurethane plate, an extruded plate, an expanded polystyrene plate and a thermosetting polystyrene foamed plastic; the inorganic fireproof insulation layer is prepared by selecting 80 parts by mass of magnesium oxide, 60 parts by mass of magnesium chloride, 40 parts by mass of water, 80 parts by mass of a mineral powder, 1 part by mass of a modifier, 8 parts by mass of a hydrophobic agent, 2 parts by mass of a hydrophobic powder, 8-10 parts by mass of expanded polystyrene particles, and 25 parts by mass of a foaming agent and water; the mortar protection layer is prepared from 350 parts by mass of cement, 650 parts by mass of quartz sand or washed-out sand, 1 part by mass of hydroxypropyl methyl cellulose, 1 part by mass of cellulose ether, 20 parts by mass of a rubber powder, and 7 parts by mass of a hydrophobic agent. The composite fireproof insulation layer provided by the invention has the advantages of fire prevention, thermal insulation, environmental friendliness and the like.

Description

technical field [0001] The invention belongs to the field of wall thermal insulation materials, in particular to a composite fireproof thermal insulation board and a preparation method thereof. Background technique [0002] Most of the building external insulation materials currently used are flammable and toxic insulation materials. Generally, organic thermal insulation materials can only reach B1 and B2 standards at most, and cannot meet the needs of fire protection. Recently, the Shandong Provincial Department of Housing and Urban-Rural Development and the Shandong Provincial Bureau of Quality and Technical Supervision jointly issued the "Residential Building Design Standards" (DB37 / 5026- 2014), "Design Standards for Residential Buildings" (DB37 / 5026-2014) will be implemented on October 1. This standard requires the full implementation of 75% energy-saving standards for residential buildings, and the new version of the national standard "Code for Fire Protection Design of...

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Problems solved by technology

Generally, organic thermal insulation materials can only reach B1 and B2 standards at most, and cannot meet the needs of fire protection. Recently, the Shandong Provincial Department of Housing and Urban-Rural Development and the Shandong Provincial Bureau of Quality and Technical Supervision jointly issued the "Residential Building Design Standards" (DB37 / 5026- 2014), "Design Standards for Residential Buildings" (DB37 / 5026-2014) will be implemented on October 1. This standard requires the full implementation of 75% energy-saving standards for residential buildings, and the new version of the national standard "Code for Fire Protection Design of Buildings" (GB50016-2014) It is required that the fireproof layer of the thermal insulation material reaches 50mm, but the energy-saving standard of the existing thermal insulation materials is mostly 65%, and the fireproof index can only reach the B1 and B2 level standards, and the fireproof layer is less than 5 cm. Therefore, an energy-saving standard of 75%, non-combustible Class A insulation materials urgently need to appear

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