Phase-change energy storage heat-insulation solid wood and manufacturing method thereof

Abstract

The invention provides phase-change energy storage heat-insulation solid wood. The wood comprises a solid wood component, wherein magnetic Fe3O4 nanoparticles are formed in a conduit and a cell cavity of the solid wood component through in-situ attached growth, and the conduit and the cell cavity are filled with composite phase-change energy storage materials of polyethylene glycol 600 and polyethylene glycol 800; and a protective coating is painted on the surface of the heat-insulation solid wood. The heat-insulation solid wood is capable of absorbing heat to withstand excessive rise of an indoor temperature during the day, releasing phase-change latent heat for thermal retention and cold dispelling during the night, and maintaining a human body within a comfort temperature range. The invention further provides a manufacturing method of the heat-insulation solid wood. The method comprises the steps of firstly processing the solid wood component according to the required dimension; carrying out degreasing and drying pretreatment on the solid wood component, forming the magnetic Fe3O4 nanoparticles in the solid wood component through in-situ attached growth and then impregnating and filling the composite phase-change energy storage material of the polyethylene glycol 600 and the polyethylene glycol 800; and finally carrying out sanding shaping and painting the protecting coating. According to the manufacturing method, the process is simple and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of wood property improvement and functionalized wood manufacturing, and in particular relates to a thermal insulation solid wood with phase change energy storage and a manufacturing method thereof. Background technique [0002] my country's existing construction area is 40 billion m 2 , most of which are high energy consumption buildings, and nearly 2 billion m of new buildings are built every year 2 , more than 95% of which are still high energy consumption buildings. With the rapid development of urban construction, my country's building energy consumption has increased significantly year by year, reaching 32% of the energy consumption of the whole society. In addition, the annual energy consumption of building materials production is about 13%, and the total energy consumption of buildings has reached the national energy consumption. 45% of the total consumption. Huge building energy consumption has bec...

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Problems solved by technology

[0014] Although the above research work has achieved some gratifying results, the thermal insulation effect of existing wood materials is not ideal, and it cannot create a comfortable space environment for human body that maintains a temperature range of 20-30 °C.

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