| Summary: | 碩士 === 國立臺北科技大學 === 有機高分子研究所 === 104 === The mainly use of techniques in this research is polymer composite, the composite of adsorbent (activated alumina)/copolymers (Poly (HEMA-co-NMA-co-NIPAAm)) is possessing a capacity of highly hygroscopicity and thermo-responsive. The function is to Enhance the adsorption capacity of the adsorbent and also reduce the desorption of the energy needed to improve industrial energy efficiency.
First of all, a successfully synthesis of Poly (HEMA-co-NMA-co-NIPAAm) copolymers via free radical copolymerization (herein, HEMA is water absorbing monomer, NMA acts as a chemical crosslinker, and NIPAAm is thermo-responsive and water absorption moiety). And then, blending with activated alumina (highly dispersion porosity and large surface area). The copolymers coated on the activated alumina by the adjustments of the experimental conditions (the buildup or stirring).
Using the below conditions to do the applications of water vapor adsorption/desorption in this composite material
(1) Blending copolymer with different conditions, (2) different concentrations of copolymer solution coating, (3) difference of water saturation time at room temperature, (4) the efficiency of dehydration at different temperatures.
In conclusion, this highly hygroscopicity and thermo-responsive composite effectively enhance the moisture absorption with low moisture vapor desorption and energy required. Besides, it could be used repeatedly, therefore, this composite is quite a big potential development in the future regarding to the process of industrial and environmental water absorption field.
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