發泡無機聚合物之開發及耐熱性能研究

A study on development of heat resistant Geopolymer foam

王奕惟(Yi-wei Wang)

指導教授 ： 吳傳威

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2009年)

https://doi.org/10.6841/NTUT.2009.00085

摘要

國內外研究目前已證實「無機聚合物」材料具耐高溫效能，物理性能良好、不具毒性、並且抗腐蝕、可再利用等特性，有成為新一代的抗高溫材料之基礎。前期研究曾使用「無機聚合物」代替環氧樹脂包覆纖維於混凝土試体，證實的確具相當之粘貼及耐高溫性能。本研究則為進一步提升無機聚合物耐高溫之特性，嘗試應用多孔隙特性開發「發泡無機聚合物」。在過程中，以不同之發泡劑、配比及纖維材料製作不同厚度、直徑之試餅測試高溫阻絕能力。其後選擇表現較佳者測試其抗壓、抗彎、密度、發泡膨脹率等力學及物理性質。最後則嘗試用以製作混凝土試體外圍之耐高溫披覆，期望運用發泡孔隙之熱傳導阻隔性能有效阻絕高溫。研究結果顯示厚度2.5 cm之發泡無機聚合物試體餅當以1100℃之火焰噴燒，其背面1小時後測得之溫度約在300℃。當用以包覆於混凝土圓柱試體外圍，在高溫600、710、800℃下，亦仍能保有相當之強度，證實發泡無機聚合物確實於阻絕高溫性能上有相當之效果，具有後續開發之潛力。

關鍵字

無機聚合物 ； 發泡 ； 隔熱 ； 耐燃

並列摘要

Worldwide researches have confirmed that geopolymer has the opportunity to become a new generation materials due to its fine properties on heat resistance, non-toxic, corrosion-resistant, and reusable. The previous studies have used geopolymer to replace epoxy as the bond material for covering FRP on concrete cylinders. The effects of cohesive as well as heat resistance were certain. To further promote the property of heat resistance for geopolymer, a porous type of material, namely geopolymer foam, is proposed to develop in the present work. During the developing process, different foaming ingredient with different fiber materials were trial, and plate specimens with different diameters and thickness were made to test the ability of heat isolation. Then, some better performed specimens were chosen to test the mechanical and physical properties such as compression and flexure strength, density, and expansion rate, etc. Finally, the developed geopolymer foam was made as a fire resistance cover on concrete cylinders to run a trial test. The results shows that a so developed geopolymer foam test plate with a thickness 2.5cm, when burned under 1100 ℃ fire for one hour, the temperature measured in the back was only 300 ℃. The trial tests of the covered concrete cylinders were also showed that under temperatures 600, 710, 800℃, the strength still remains. It is seen that there are considerabl abilities on the heat resistance as well as fire isolation for the developed geopolymer foam, and content some potential.

並列關鍵字

Geopolymer ； Foam ； Fire Resistance ； Heat Resistance

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