Preparation method of thermally induced flexible phase change energy storage wood

Abstract

The invention discloses a preparation method of thermally induced flexible phase change energy storage wood, which comprises the following steps of: a, preparing 50 to 70 parts of 0.05 to 0.2 mol / L triethanolamine solution and 40 to 60 parts of 0.1 to 0.4 mol / L triphenylmethane triisocyanate solution by taking N,N-dimethylformamide as a solvent; b, adding the triethanolamine solution in the step a into the triphenylmethane triisocyanate solution, and conducting stirring at 60-80 DEG C for 10-15 hours to obtain a prepolymer; c, adding 10-20 parts of polyethylene glycol-1500 into the prepolymer, and conducting stirring for 20-30 hours at the temperature of 60-80 DEG C to obtain a solid-solid phase change material; and d, putting the delignified wood into the solid-solid phase change material, carrying out vacuum impregnation for 20-40 minutes, and then conducting drying to obtain a finished product. The prepared phase change energy storage wood has the heat and energy storage capacity and is good in flexibility.

Description

technical field [0001] The invention relates to the technical field of phase change materials and wood processing, in particular to a preparation method of thermally induced flexible phase change energy storage wood. Background technique [0002] With the gradual depletion of the three traditional energy sources of oil, coal and natural gas around the world, and the increasingly serious environmental problems such as the greenhouse effect and the destruction of the ozone layer, green and low-carbon has become a hot research direction in the field of global building materials, especially in European and American countries. considerable development has been achieved. In my country, building energy consumption accounts for 30% of the country's total energy consumption, and building carbon emissions account for 50% of the total emissions, which has caused a huge burden on my country's national economy and seriously polluted the environment, while the research on green and low-ca...

AI Technical Summary

Problems solved by technology

At present, in the construction industry, phase change energy storage materials are organically combined with wood to prepare phase change energy storage wood with heat storage and heat release capabilities, which are applied to interior decoration materials such as wooden floors, wooden doors, and wooden ceilings to achieve energy saving and environmental protection. However, the existing phase change energy storage materials generally have problems such as easy leakage, poor material flexibility and low thermal conductivity.

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