鉀系矽鋁酸鹽材料合成與性質之研究

Synthesis and Material Properties of Potassium Aluminosilicate Materials

籃雅詩(Ya-Shih Lan)

指導教授 ： 張裕煦

國立臺北科技大學/工程學院/資源工程研究所/碩士(2011年)

https://doi.org/10.6841/NTUT.2011.00286

摘要

無機聚合材料係以高嶺石、石英與鹼性溶液合成一非晶質至半晶質之矽鋁酸鹽材料，此材料結構與沸石之聚合架狀結構相似，成分與天然產出之礦物相似，因此將其命名為 Geopolymer 。無機聚合物主要係由富含矽鋁元素之原料於鹼性溶液中使 Si、Al 元素溶出並形成凝膠，再經由縮聚反應形成無機聚合材料。
本研究主要針對鉀系矽鋁酸鹽材料，以純化合物合成方式搭配不同 Si/Al 比探討其結構性質之影響。以矽灰與氫氧化鉀溶液製備之矽酸鉀溶液和鋁粉與氫氧化鉀溶液製備之鋁酸鉀溶液混合後，經由熱處理合成鉀系矽鋁酸鹽初始粉末，進而與氫氧化鉀溶液均勻混合後形成鉀系矽鋁酸鹽材料，並分別對產物之組成、結構分析之。結構分析係包含粉末X 光繞射、傅立葉轉換紅外線光譜以及核磁共振光譜。

關鍵字

鉀系矽鋁酸鹽材料 ； 無機聚合物 ； 核磁共振光譜

並列摘要

Inorganic polymer is an amorphous to semi-crystalline aluminosilicate material which is conventionally synthesized from the mixture of kaolinite, quartz and alkaline solution. The structure of this material is similar to the framework of zeolites and the composition is closed to that of natural minerals, in which is named “Geopolymer”. Geopolymer materials are formed by geopolymerisation via the gelation of Si and Al dissolved in alkaline solutions with raw materials which are rich in silicon and aluminum contents.
Potassium aluminosilicate are synthesized using pure chemicals with different molar ratios of Si to Al in order to study the variation in structural matters. In general potassium silicate solutions made of silica fume in KOH(aq) react with potassium aluminate solutions made of Al powders in KOH(aq) to form potassium aluminosilicate raw powders. After heat-treatment, these raw powders are then dissolved and reacted with KOH solution to form potassium aluminosilicate materials. XRD, FT-IR, 29Si and 27Al MAS-NMR spectroscopy were carried out for analyzing the composition and structure of products, respectively.

並列關鍵字

Potassium aluminosilicate ； geopolymer ； MAS-NMR

參考文獻

[37] 吳恬恬 (2009)，鈉系矽鋁酸鹽材料結構與性質之研究，國立台北科技大學資源工程研究所碩士論文。

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