Hybrid high-efficiency thermal-insulation material and preparation method thereof

Abstract

The invention relates to a hybrid high-efficiency thermal-insulation material and a preparation method thereof. The preparation method comprises the following steps: by using a pretreated light-weight porous material as aggregate, an inorganic active material as an initiator, reactive polymer powder and white cement as gelling materials and ash calcium and gypsum powder as propping materials, mixing with fibers, a water repellent, cellulose ether, a surfactant and the like, stirring and dispersing to obtain the hybrid high-efficiency thermal-insulation material. The hybrid high-efficiency thermal-insulation material is composed of the following components in parts by weight: 20-40 parts of aggregate, 10-15 parts of inorganic active material, 5-10 parts of reactive polymer powder, 20-35 parts of white cement, 15-20 parts of propping material, 5-15 parts of fiber, 1-5 parts of water repellent, 0.1-0.5 part of cellulose ether and 0.5-1 part of surfactant. A right amount of water can be added into the material and stirred to obtain a paste, and the paste is directly spread onto the basal plane of the wall. The product has the advantages of low heat conductivity coefficient, high compression strength, favorable binding strength, thermal insulation, water resistance, fire resistance, crack resistance, no toxicity, environment friendliness, low shrinkage, simple construction technique, low unit area cost and the like, and is suitable for thermal insulation of various building external walls.

Description

technical field [0001] The invention relates to a hybrid high-efficiency thermal insulation material and a preparation method thereof, belonging to the technical field of thermal insulation materials for building exterior walls. Background technique [0002] Increasing the thermal insulation performance of building peripheral structures is one of the important ways to reduce building energy consumption. At present, most of the insulation materials used in external wall insulation systems at home and abroad are organic materials, such as polystyrene board, extruded board, polystyrene foam, polyurethane rigid foam, etc. Organic thermal insulation materials are light in weight, low in cost, good in machinability, high in density, and good in thermal insulation effect, but they have large deformation coefficient, poor stability, poor safety, easy to burn, poor ecological environmental protection, and poor aging resistance. And other shortcomings, and the constructio...

AI Technical Summary

Problems solved by technology

[0003] Although inorganic thermal insulation materials have some shortcomings of their own, such as high dry density and poor thermal insulation performance, they have excellent performances that cannot be matched by organic thermal insulation materials in other aspects, such as high fire resistance and flame retardant properties of inorganic thermal insulation materials. Strong, not easy to deform, good stability

At present, the existing inorganic thermal insulation wall materials in the domestic market have complex construction techniques, generally high cost, low strength, high thermal conductivity, and high water absorption rate, and the board insulation materials have problems such as easy penetration, cracking, and falling off, resulting in the use of Lifespan and insulation effect are not ideal