| Summary: | 碩士 === 國立臺灣科技大學 === 化學工程系 === 104 === The main objective of this research is focused on the adsorption and desorption reactions between polymer and vapor. The related filter and device for dehumification purpose are develpoed according to its property.
In this study, NIPAAm are used to synthesis PNIPAAm, which is identified by nuclear magnetic resonance spectroscopy, elemental analyzer, specific surface area analyzer, and Fourier transform infrared spectroscopy, respectively. The behavior between PNIPAAm and vapor is investigated by thermogravimetry and isothermal packed bed reactor at controlled humidity. The dehumidifying filter is prepared with using the synthesized PNIPAAm due to its low critical solution temperature (32.5°C). In the test, the regeneration rate of PNIPAAm powder is 1.3 times higher than silica gel at 40°C and 50°C. The dehumidifying capacity of this filter is 5 g-H2O/m2 under ambient condition (RH60% and 28°C).
The results of the PNIPAAm -packed column system indicate the room relative humidity (RH) can be decreased sharply from 66% to 54% without the obvious increase in room temperature. The practicability of this material is thus proven and it can be applied for energy-saving dehumidifier.
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