焚化灰渣經電漿高溫熔融處理技術,並經由水淬方式得到玻璃質熔渣,可有效地固化重金屬於玻璃網狀結構中,減少重金屬溶出的問題,同時改善對生態環境之危害。故本研究是以焚化灰渣之水淬熔渣作為初始原料,加入鹼金屬鋁矽酸鹽溶液及鹼性溶液充分攪拌後,於25℃條件下硬化成型製成無機聚合材料。研究中控制液體溶液的配比,探討溶液中不同SiO2/Al2O3及SiO2/Na2O莫耳比對無機聚合材料各項性質之影響。此外,並探討添加發泡劑後對其耐火隔熱性質之影響,以開發出具有再生潛力之防火隔熱材料,並為焚化灰渣資源化找尋另一絕佳途徑,以達到資源再利用之目的。 研究結果顯示,添加鋁酸鈉溶液製成無機聚合材料中,以溶液中SiO2/Al2O3莫耳比為57及SiO2/Na2O莫耳比為0.75之配比,具有最佳之機械強度及耐火隔熱特性。而添加發泡劑後,隨著發泡劑添加量增加時,因孔隙增大使其耐火隔熱效果大幅提升。因此,利用焚化灰渣之水淬熔渣製成無機聚合材料,應用於建築材料及防火隔熱材料方面是具有相當之再生潛力。
After thermal plasma treatment, incinerator ashes turned into vitrification slags by guenching. This technology could reduce heavy metal extraction and improve ecological environments problems, because the heavy metal ions replaced other ions and were confined in the framework of silicates. In this research work, incinerator ashes based slags were used as raw materials. Geopolymer was formed by mixed slag, aluminosilicate solution and alkaline solution at 25℃. Different molar ratio of SiO2/Al2O3 and SiO2/Na2O in the solution were affect the characteristics of the geopolymer. Foaming agent were also added to evalue the fire resistance property. The experimental results showed that geopolymer with sodium aluminate and the molar ratio of SiO2/Al2O3 = 57, SiO2/Na2O = 0.75 has the best mechanical and fire resistance properties. After foaming agent added, the fire resistance properties were improved due to increase the porosity. This incinerator ash based geopolymer has great potential for applying as building materials or fire resistance materials.