A preparation method of thermally induced flexible phase change energy storage wood

Abstract

The invention discloses a method for preparing heat-induced flexible phase change energy storage wood, which is carried out according to the following steps: a. Using N,N dimethylformamide as a solvent, prepare 0.05-0.2mol / L triethanolamine solution 50- 70 parts and 40-60 parts of 0.1-0.4mol / L triphenylmethane triisocyanate solution; b, adding the triethanolamine solution in step a to the triphenylmethane triisocyanate solution, stirring at 60-80°C for 10- 15 hours to obtain a prepolymer; c, adding 10-20 parts of polyethylene glycol-1500 to the prepolymer, stirring at 60-80°C for 20-30 hours to obtain a solid-solid phase change material; d, adding The delignified wood is put into the solid-solid phase change material, vacuum impregnated for 20-40 minutes and then dried to obtain the finished product. The phase change energy storage wood prepared by the invention not only has the ability to store heat and store energy, but also has good 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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