本研究利用常溫電漿具改質材料表面之功能，活化PET纖維表面並進行接枝程序。期間探討不同電漿處理參數(電漿功率、氣體壓力、處理時間)、接枝環境參數(接枝溫度、丙烯酸單體濃度、接枝時間)對PET纖維活化及接枝影響，在最適接枝參數下探討離子交換材對重金屬離子的吸附行為及效能。評估常溫電漿結合接枝技術製備離子交換材於廢水處理應用之可行性。
實驗結果顯示PET纖維經氧氣電漿於功率1200W、處理時間10秒；氬氣電漿於功率800W、處理時間10秒處理下有最佳的水分散失率。於接枝程序中，接枝溫度90℃、丙烯酸單體濃度6M、反應時間5小時丙烯酸接枝效果最佳，於氧氣電漿處理下接枝率可達5.26%。以上述表面改質條件、丙烯酸接枝條件製備離子交換材，探討後續吸附行為，於鹼化濃度0.1N，溶液pH=6、反應溫度60℃有最好的吸附效果，銅離子吸附量達4.266mg/g-polymer；鎵離子吸附量可達2.056 mg/g-polymer。且其吸附行為符合Freundlish 吸附模式，反應熱值為13.74 kJ/mol，為一物理吸熱反應。
常溫電漿改質PET纖維接枝丙烯酸具低耗能、快速方便等特質，所製成之離子交換材亦有良好之眾金屬離子去除能力，具開發廢水處理應用之潛力。

In this research, the surface modification of PET fiber applying low temperature plasma activation and acrylic acid grafting was studied. The operating parameters such as power, reactive or inert gas application, gas pressure, reaction in low temperature plasma activation treatment and the grafting temperature, acrylic acid concentration, grafting time in grafting treatment were also discussed in this work. The acrylic acid grafted PET fiber, (ion exchanger) were used in heavy metal removal. The adsorption behavior, the SEM-EDS and the FTIR analysis were applied to demonstrate the performance and the function of the grafted materials.
Results from the PET surface modification showed that the optimum treatment is oxygen plasma with the power of 1200W, 10 seconds treatment time and argon plasma with the power of 800W, 10 seconds treatment time. The maximum grafting percentage 5.26% was obtained with the condition of grafting temperature 90, acrylic acid concentration as 6M, grafting time 5hr. Results from the metal removal programs showed that the adsorption of copper and gallium were 4.266mg/g-polymer and 2.056mg/g-polymer respectively under upon optimum surface modification and grafting condition. The adsorption behaviors were characterized as Freundlish adsorption modal and adsorption heat was calculated as 13.74 kJ/mol. It showed the reaction to be an endothermic reaction.
With the advantage of low energy cost, convenient and environmental friendly process, the heavy metal removal by acrylic acid grafted PET fiber might be applied in wastewater treatments in near future.

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