Preparation method of phase-change energy-storage wood
A phase change energy storage and wood technology, which is applied in wood treatment, wood heating, impregnating wood, etc., can solve the problems of compound infiltration, easy loss of compound, short service life of phase change energy storage wood, etc. The effect of large latent heat, suitable phase transition temperature, and convenient impregnation and filling
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Embodiment 1
[0028] Put a wooden block with a length, width and height of 20×20×20mm into a mixed solution of sodium hydroxide and sodium sulfite, the concentration of sodium hydroxide in the mixed solution is 2.5mol / L, and the mass ratio is 20%; the hydrogen The concentration of sodium sulfite in the mixed solution of sodium oxide and sodium sulfite is 0.4mol / L, and the mass ratio is 20%; boil the solution for 12-48h until the color of the solution no longer changes, put the boiled wood into the boiled The deionized water is maintained for 8 hours, and the deionized water is replaced 4-6 times in the middle to maintain the pH of the deionized water at 7; then the treated wood blocks are taken out and placed in a 90% ethanol solution for 3 hours to obtain delignified wood.
[0029] Take by weighing 300g of phase-change microcapsule emulsion with a solid content of 40%, put it into a conical flask after stirring evenly, then add the delignified wood produced in the previous step, and vacuum ...
Embodiment 2
[0031]A wooden block with a length, width and height of 20×20×20mm is put into a mixed solution of sodium hydroxide and sodium sulfite, the concentration of sodium hydroxide in the mixed solution is 2.5mol / L, and the mass ratio is 50%; the hydrogen The concentration of sodium sulfite in the mixed solution of sodium oxide and sodium sulfite is 0.4mol / L, and the mass ratio is 50%; boil the solution for 12-48h until the color of the solution no longer changes, put the boiled wood into the boiled The deionized water is maintained for 8 hours, and the deionized water is replaced 4-6 times in the middle to maintain the pH of the deionized water at 7; then the treated wood blocks are taken out and placed in an ethanol solution with a concentration of 95% for 3 hours to obtain delignified wood.
[0032] Take by weighing 300g of phase-change microcapsule emulsion with a solid content of 30%, put it into an Erlenmeyer flask after stirring evenly, then add the delignified wood produced in...
Embodiment 3
[0034] A wooden block with a length, width and height of 20×20×20mm is put into a mixed solution of sodium hydroxide and sodium sulfite, the concentration of sodium hydroxide in the mixed solution is 2.5mol / L, and the mass ratio is 50%; the hydrogen The concentration of sodium sulfite in the mixed solution of sodium oxide and sodium sulfite is 0.4mol / L, and the mass ratio is 50%; boil the solution for 12-48h until the color of the solution no longer changes, put the boiled wood into the boiled Keep it in deionized water for 8 hours, replace the deionized water 4-6 times in the middle, and maintain the pH of the deionized water at 7; then take out the treated wood block and put it in an ethanol solution with a concentration of 95% for 3 hours, and then put it in a mass percent concentration Immerse in 53% sodium silicate solution for 0.8h to obtain delignified wood.
[0035] Take by weighing 300g of phase-change microcapsule emulsion with a solid content of 30%, put it into an ...
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