Elastic thermal insulation slurry and preparation method thereof

Abstract

The invention relates to elastic thermal insulation slurry and a preparation method thereof. The elastic thermal insulation slurry is prepared from the following raw materials in percentage by weight:8-12% of polymer emulsion, 10-12% of silica powder, 12-18% of coarse whiting powder, 25-30% of glass micro-beads, 6-8% of calcined kaolin, 4-5% of barium sulfate, 1-1.5% of a flame retardant, 0.2-0.5% of a wetting agent and the balance of water. According to the invention, the silica powder is used as a light skeleton, the polymer emulsion and the calcined kaolin are added at the same time, so that the binding power of slurry is improved, the slurry can be quickly coagulated, strong binding strength with a base material is generated and is up to 0.11 MPa, the cured propylbenzene emulsion is high in strength, good toughness of the product can be guaranteed, and after being mounted on a wall, the elastic thermal insulation slurry is not easy to crack and fall off; and the slurry is good inheat preservation performance, the vitrified micro bubbles are added, so that the heat conductivity coefficient of the obtained slurry is smaller than 0.053 W / (m.K), and the slurry has good flame retardance.

Description

technical field [0001] The invention relates to the technical field of engineering materials, in particular to an elastic thermal insulation slurry and a preparation method thereof. Background technique [0002] Energy is the material basis for human activities and sustainable economic and social development. In recent years, the excessive development and utilization of energy by humans has brought about problems such as global warming and environmental degradation; China is a large developing country with rapid growth in energy consumption. Pollution, promoting sustainable economic development, building energy conservation as a sustainable energy-saving way is increasingly being valued by people; [0003] Reducing the heat transfer coefficient of the building envelope structure wall is one of the main measures and effective means of building energy saving, among which adding thermal insulation materials is the primary means to reduce the heat transfer coefficient; accordin...

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Problems solved by technology

[0003] Reducing the heat transfer coefficient of the building envelope structure wall is one of the main measures and effective means of building energy saving, among which adding thermal insulation materials is the primary means to reduce the heat transfer coefficient; according to the nature of the material, it is currently used in the wall at home and abroad Materials in the thermal insulation field are mainly divided into two categories: organic thermal insulation materials and inorganic thermal insulation materials; organic thermal insulation materials mainly include foamed polystyrene boards, extruded polystyrene boards, sprayed polyurethane and polystyrene particles, etc. To achieve light weight and heat preservation, but the most prominent problems of this kind of products are flammability, aging resistance (insulation performance attenuation) and toxicity. These problems directly endanger the safety of human life and property, green environmental protection and social stability; compared with Organic thermal insulation materials and inorganic thermal insulation materials have high fire protection rating, strong flame retardancy, and are not easy to deform and have good stability. During the construction process, the bonding with the base surface of the wall and the plastering layer is relatively firm, and hollowing rarely occurs Cracking phenomenon; however, the existing inorganic thermal insulation materials still have defects such as high dry density and poor thermal insulation performance

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