Ultra-light energy-storing gypsum board and preparation method thereof

Abstract

The invention discloses an ultra-light energy-storing gypsum board and a preparation method thereof. The ultra-light energy-storing gypsum board is prepared from the following components in parts by weight: 100 parts of gypsum powder, 0.5 to 7 parts of water soluble silicon oil, 0.1 to 5 part of foamed microsphere and 10 to 60 parts of phase change microcapsule. By adopting the ultra-light energy-storing gypsum board, the weight of the gypsum board is lowered remarkably; meanwhile, the heat-insulation performance is achieved; under the synergistic effect with phase change microcapsules, the temperature control effect is improved further, and the dispersion property, the flowing performance and the combination strength of foamed microspheres in the gypsum powder are improved; meanwhile, thefoamed microspheres are very light, and can be premixed with the phase change microcapsules, so that subsequent machining operation is facilitated; moreover, the foamed microspheres have certain strength, and the dispersing property in the gypsum powder of the phase change microcapsules and interface action force with the gypsum powder are improved by hydrophilic long-chain monomers in the phasechange microcapsules, so that the requirement on the strength of the gypsum board product is met; gaps in the gypsum board can be filled with the foamed microspheres, so that the water absorbing rateis lowered; the ultra-light energy-storing gypsum board can be applied to a high-moisture environment.

Description

technical field [0001] The invention relates to an energy storage gypsum board and a preparation method thereof. Background technique [0002] Energy is the foundation of economic construction, is related to the speed of industrial and agricultural development, and is the economic lifeline of a country. In recent years, my country's building scale is huge and has developed rapidly, and building energy conservation has become an important part of my country's energy conservation work. As a building material, gypsum board has been widely used in interior partition walls, wall cladding panels (instead of wall plastering layers), ceilings, sound-absorbing panels, ground floor panels and All kinds of decorative panels, etc. Although it has the characteristics of high strength, thin thickness, convenient processing, sound insulation, heat insulation and fire prevention, in the context of improving the energy utilization efficiency of buildings, further improving the thermal insu...

AI Technical Summary

Problems solved by technology

However, after the chemical foaming agent foams, the bubbles produced are many and uneven in size, which can easily lead to uneven distribution of pores inside the gypsum board, resulting in uneven density of the board, reducing the strength of the gypsum board, and affecting its long-term performance.

[0006] In the preparation method of low-density thermal insulation gypsum board disclosed in patent CN 103588457, a chitosan-liquid paraffin-glutaraldehyde non-phase-change energy storage microcapsule and phase-change microcapsule are used to reduce the weight of gypsum board, although the patent avoids Chemical blowing agents are used, but the degree to which these energy-storing microcapsules can achieve gypsum board weight reduction and its contribution to gypsum board strength is very limited

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