Insulation board made of composite materials and preparation method thereof

Abstract

The invention discloses an insulation board made of composite materials and a preparation method thereof. The insulation board is made of the following raw materials in parts by weight: 8 to 10 parts of polyphenyl granule, 150 to 200 parts of cement, 20 to 30 parts of fly ash, 5 to 10 parts of sepiolite, 10 to 20 parts of fibrous brucite, 15 to 20 parts of adhesion agent, 0.6 to 1 part of anti-crack fiber, 1 to 2 parts of curing agent, 0.4 to 0.6 part of anti-sliding agent, 0.5 to 0.7 part of hydrophobic agent, 0.4 to 0.6 part of AES, and 100 to 120 parts of water; the preparation method comprises the following steps: proportionally putting the cement, fly ash, sepiolite, fibrous brucite, anti-crack fiber, anti-sliding agent and hydrophobic agent into a stirring machine, and stirring; adding adhesion agent, curing agent and AES into the stirring machine, and stirring; adding polyphenyl granule into the stirring machine so as to obtain thermal mortar; after hardening the thermal mortar, manufacturing the finish product of the insulation board made of the composite materials. The insulation board made of the composite materials, provided by the invention, has excellent heat preservation and heat insulation performance, excellent fireproof performance, high compressive strength and high tensile strength, and is light in weight.

Description

technical field [0001] The invention relates to a building thermal insulation material, in particular to a composite material thermal insulation board and a preparation method thereof. Background technique [0002] In recent years, as the country's requirements for building fire performance have become higher and higher, the requirements for external wall insulation materials have also become more and more stringent. Due to its poor fireproof performance, organic thermal insulation materials have limited their scope of use. Among inorganic thermal insulation materials, rock wool board resources with better thermal insulation and fireproof performance are scarce, and foamed cement boards with low cost investment are blooming everywhere. The foamed cement board produced by sulphoaluminate cement has poor strength in the later stage, and the foamed cement board produced by ordinary Portland cement has low early strength, mold collapse and late cracking occur frequently, and the...

AI Technical Summary

Problems solved by technology

Due to its poor fireproof performance, organic thermal insulation materials have limited their scope of use. Among inorganic thermal insulation materials, rock wool board resources with better thermal insulation and fireproof performance are scarce, and foamed cement boards with low cost investment are blooming everywhere.

The foamed cement board produced by sulphoaluminate cement has poor strength in the later stage, and the foamed cement board produced by ordinary Portland cement has low early strength, mold collapse and late cracking occur frequently, and the carbonization, thermal conductivity, and Quality problems such as shrinkage cannot be fundamentally resolved. In addition, it is not uncommon for foamed cement boards to have large dimensional changes that lead to cracking of the decorative layer in the later stage. Many cut waste materials in the production process cannot be disposed of. These are foamed cement boards. common problem