Building foamed cement phase-change heat-preserving board (building block) and manufacturing method thereof

Abstract

The invention relates to a building foamed cement phase-change heat-preserving board (building block) and a manufacturing method thereof. The building foamed cement phase-change heat-preserving board (building block) mainly comprises foamed cement and paraffin wax with a phase-change function. The paraffin wax has high reversibility in the latent heat high-phase-change process, and the size of solid paraffin wax beads and the aperture of the foamed cement are controlled precisely, so that the phase-change materials are distributed in a finished product uniformly and can absorb a heat source and release heat to the maximum degree. A process for utilizing the phase-change materials is simple, and manufacturing cost is low. The defects of complex production method and high manufacturing cost of the traditional phase-change material coating are overcome, and the physical shape of the paraffin wax and hole wall strength, compactness and water resistance of foam concrete are changed, so that the foam concrete and the phase-change materials are organically combined into the finished product by the simplest method and the most economic route. Therefore, energy-saving building material products with various purposes, such as inner and outer wall foamed cement phase-change heat-preserving boards, inner and outer partition wall foamed cement phase-change heat-preserving boards, roofing foamed cement phase-change heat-preserving boards, wall foamed cement phase-change heat-preserving building blocks and the like can be manufactured by selecting different volume weights and properties.

Description

Technical field [0001] The invention belongs to the technical field of building insulation boards (blocks), and is a building foamed cement phase change insulation board (block) composed of foamed cement and phase change materials. Background technique [0002] At present, the extruded boards and foam boards made of plastic materials such as polystyrene and polyurethane, although light-weight insulation, have low compressive strength and flammability, which seriously threaten the safety of people's lives and property. Although the granular rubber powder mortar made of porous lightweight materials such as perlite solves the problem of fire prevention, it has high water absorption, is easy to crack, and has poor thermal insulation effect. Aerated blocks and foam concrete blocks have better light-weight thermal insulation effects, but they do not have phase change function. The wall insulation board or block made of foamed cement and phase change material is to seal or coat the pha...

AI Technical Summary

Problems solved by technology

[0002] At present, although extruded boards and foamed boards made of plastic materials such as polystyrene and polyurethane are lightweight and heat-resistant, they have low compressive strength and are flammable, which seriously threaten the safety of people's lives and property.

Granular rubber powder mortar made of porous light materials such as perlite solves the problem of fire prevention, but it has a high water absorption rate, is easy to crack, and has poor thermal insulation effect

Aerated blocks and foam concrete blocks have good light insulation effect, but they do not have phase change function

The wall insulation board or block made of foamed cement and phase change material is sealed or coated with the phase change material into capsules, the production process is complicated, easy to leak, and the production cost is high