| 英文摘要 |
Due to the raising amount of end-of-life panel displays, the recycling of waste panels has become an important issue with the growing awareness of environmental protection. In order to recycle waste panels but also generate high value products, this project has developed the nano-pore control technology to fabricate humidity control materials from the panel glass. The glass was first separated and purified from panel displays, and used to produce the mesoporous material through decomposition treatments. The pore size requirement for moisture adsorption/desorption functions was in a narrow range at nano scale. Owing to the stable quality and similar chemical composition of panel glass, the pore size of mesoporous material can be finely tunable for the humidity control application, where the average pore size was 9.1 nm. With the optimal fabrication condition, the moisture adsorption and desorption contents were respectively 51.7 g/m2 and 49.2 g/m2 in 12 hour test, and the desorption/adsorption ratio was about 95%. As the relative humidity increasing, the rate of equilibrium moisture adsorption was 0.41 kg/m3%. The calculated equilibrium moisture adsorption was 6.99 kg/m3 at the relative humidity of 55%, which meets the Japan standard of humidity control building materials. Furthermore, the material performance was evaluated by the model test in an enclosed space, showing a great humidity control function in a short time without energy consumption. Compared with the imported diatomaceous earth, the glass-based material is potential for the substitute of humidity control products with the benefit of diminishing abundant waste panel glass. To meet the goal of "cradle to cradle" in sustainable development, we open an alternative way to create the novel and high value application of waste panel glass in a circular economy.
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