Foating-coat coating as well as preparation method and application thereof

Abstract

The invention relates to floating-coat coating and a preparation method and application thereof. Double-component heat preservation coating comprises a component A and a component B. The component A comprises, by weight, 20-45 parts of fly ash, 10-30 parts of sand powder, 0.7-2.1 parts of a viscosity modifier, 1-5 parts of a film forming matter, 10-35 parts of polystyrene vacuum microspheres and 20-35 parts of ceramic vacuum microspheres; the component B comprises 30-45 parts of an emulsion, 20-30 parts of a heat radiation reagent, 30-60 parts of water, 5-10 parts of a coalescing agent and 0-2 parts of an auxiliary agent; wherein the heat radiation reagent comprises one or more of aluminum salt and titanate. The double-component thermal insulation coating has the advantages of low heat conductivity coefficient, good thermal insulation and flame retardant effects, high bonding strength and good leveling effect, can be thickly coated, can save a putty layer in a coating system, and can be matched with other decorative surface layers to form a multi-system thermal insulation product.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to intermediate coatings and a preparation method and application thereof. Background technique [0002] According to my country's building energy-saving development plan, the building energy-saving design standards of 30%, 50% and 65% energy saving have been gradually implemented since 1986. Building energy conservation is jointly borne by buildings and heating systems. With the improvement of energy-saving design standards, the building wall structure has assumed higher and higher energy-saving requirements. [0003] In the field of energy-saving and thermal insulation of external walls in my country, the external thermal insulation and energy-saving system of external walls is mainly implemented with molded polystyrene board and rock wool as the insulation layer. Although polystyrene board has good thermal insulation performance, its fire protection rating is low, and rock wool ...

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Problems solved by technology

[0003] In the field of energy-saving and thermal insulation of external walls in my country, the external thermal insulation and energy-saving system of external walls is mainly implemented with molded polystyrene board and rock wool as the insulation layer. Although polystyrene board has good thermal insulation performance, its fire protection rating is low, and rock wool has a high fire protection rating but its strength Low moisture absorption, high self-weight, all of which have high potential safety hazards. Therefore, research on thermal insulation materials for external wall thermal insulation systems has gradually shifted to coating materials

[0004] Traditional coating layer insulation materials mostly use polystyrene particle insulation slurry and vitrified microbead insulation mortar, but they have faded out of the market due to their shortcomings such as single function, poor insulation effect, and easy cracking. At present, some coating layer materials have thin coating, The advantage of good heat insulation effect can be substituted into energy-saving design as equivalent thermal resistance, gradually becoming the new favorite in the market

Some technologies disclose a compound based on elastic acrylic emulsion and VAE707 latex, with silica airgel water-based slurry, sepiolite fiber, paraffin wax setting phase change energy storage material, expanded perlite, hollow glass microspheres Paste-like energy-storage nano-insulation exterior wall putty such as fillers has a thermal conductivity of up to 0.047W / (m.K) at room temperature, which has good thermal insulation performance, but the fire rating can only reach B1 level, and the bonding strength is low, less than 0.1 MPa, and thick coating cannot be achieved

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