A kind of phase change gypsum board and preparation method thereof

Abstract

The present application discloses a method for preparing a phase-change gypsum board, which includes: fully mixing plaster of paris, a binder, and a reinforcing agent to form a dry powder; mixing the original solution of phase-change microcapsules, a water reducer, and water to form a phase change change microcapsule solution; mix the surfactant with water to form a wet material; fully mix the dry powder material, the phase change microcapsule solution and the wet material to form a slurry; place the slurry on the protective surface The middle of the paper is cut and dried to form the phase-change gypsum board. For the phase-change gypsum board, based on 100 parts by weight of plaster of paris, the original solution of phase-change microcapsules accounts for 20-80 parts by weight, the binder accounts for 0.5-2.5 parts by weight, the reinforcing agent accounts for 0.05-0.5 parts by weight, and the water-reducing The agent accounts for 0.05-1 parts by weight, the surfactant accounts for 0.05-1 parts by weight, the water accounts for 65-90 parts by weight, and the protective paper accounts for 2-10 parts by weight. In this application, the amount of water reducer is reduced by changing the order of adding water reducer.

Description

technical field [0001] The present application relates to the field of building materials, in particular to a phase-change gypsum board and a preparation method thereof. Background technique [0002] According to a survey by the International Energy Agency, in the past 20 years, primary energy consumption has increased by 49%, and CO2 emissions account for about 43%. Moreover, 30% to 40% of energy consumption is building energy consumption. Thermal energy storage materials are considered to be a way to coordinate energy consumption and energy supply balance. Applying phase change energy storage materials to building materials and rational use can reduce Building energy consumption, therefore, phase change energy storage building materials are research hotspots. Patent CN201410176349.0 pointed out that the building energy-saving heat preservation method and the preparation scheme of hollow blocks, the phase change material is directly mixed with gypsum, and the phase change ...

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Problems solved by technology

However, none of the above patents mentions the influence of phase change materials on the performance of gypsum boards and their energy storage effects.

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