2020-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/672677摘要：聚對苯二甲酸乙二酯是一種熱塑性聚酯，因為已被廣泛用於製造各種包裝，因此導致有將近數百萬噸的聚對苯二甲酸乙二酯廢棄物被產生出來。隨著聚對苯二甲酸乙二酯廢塑料數量的增加，如何將其有效地回收或降解已被認定為一項需要解決的重要議題。目前有很多種降解聚對苯二甲酸乙二酯的方法，在眾多降解廢塑料的方法之中，糖解是一種具有較多優勢的解聚方式，除了反應可在相對較溫和的條件下進行以外，聚對苯二甲酸乙二酯廢棄物的糖解可產生對苯二甲酸雙（2-羥乙基）酯（BHET)單體，其可作為重新合成聚對苯二甲酸乙二酯過程中的原料。 本團隊將開發出一套藉由糖解反應來回收廢塑料(聚對苯二甲酸乙二酯)的系統，並使用含鋅金屬多氮唑框架（MAF-6）觸媒進行催化反應，於乙二醇環境下解聚聚對苯二甲酸乙二酯，生產BHET單體。MAF-6是金屬有機框架（MOF）的子類，由金屬離子（Zn2+）和有機配位體（2-乙基咪唑）所組成。本研究將仔細探討一系列的反應參數對PET糖解性能的影響，其中包括反應溫度、反應時間和催化劑用量。此外，可能的反應機制也將被提出。本團隊欲提出之聚對苯二甲酸乙二酯廢塑料降解系統於永續社會中將具有實場應用的潛力及有助於循環經濟發展。 <br> Abstract: Polyethylene terephthalate (PET) is a thermoplastic polyester which has been extensively used as fabrication of various kinds of packaging, creating millions of tons of PET wastes. With the increase of PET wastes, recycling or degrading PET wastes has been identified as a prominent issue which needs to be solved. One of the promising degradation process for PET is glycolysis which could be conducted under mild reaction conditions comparing with other methods. Furthermore, glycolysis of PET wastes can generate bis(2-hydroxyethylterephthalate) (BHET) monomeric product as the raw material in the synthesis of PET. Herein, an effective catalytic process for the chemical recycling of PET will be demonstrated by using Metal Azolate Framework-6 (MAF-6) catalyst in the presence of ethylene glycol to generate bis(2-hydroxyethylterephthalate) (BHET) monomeric product. MAF-6, a subclass of metal-organic frameworks (MOFs), is comprised of metal ion (Zn2+) and organic ligand (2-ethylimidazole). The effects of reaction parameters including reaction temperature, reaction time, and the amount of catalyst on PET glycolysis performance will be scrutinized. Additionally, a possible mechanism of PET glycolysis reaction catalyzed by MAF-6 will be investigated. According to the proposed methodology and idea, this work can have a great potential in PET wastes degradation for further industrial application and be benefited for circular economy.聚對苯二甲酸乙二酯金屬多氮唑框架材料糖解反應廢棄物回收高分子解聚循環經濟Polyethylene terephthalate (PET)Metal azolate frameworks (MAFs)Glycolysis reactionWaste recyclingPolymer depolymerizationCircular economy