發泡無機聚合物高溫延時性能探討

The Study of Foam Geopolymer Performing at High Temperature

黃竹慶(Chu-Ching Huang)

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(2014年)

https://doi.org/10.6841/NTUT.2014.00782

摘要

本試驗研究以鋁粉添加於無機聚合物，使試體產生孔隙均勻分佈之發泡，可減輕重量，且有效地阻絕熱源，期望能達成符合CNS12514 防火規範之要求。本研究首先以鋁粉比例及攪拌時間為參數，觀察其膨脹及發泡機制，繪製發泡曲線及效益值。試驗先採用直徑12cm的實心圓餅試體，探討製程中試體的裂痕變化，據以建立數據資料庫。其後則採用直徑20cm的實心圓餅試體，使用發泡效益值最高的四種程序進行後續研究。透過本研究特別研發之高溫爐，參照CNS12514標準升溫曲線，對試體底部均勻加熱，量測7小時內非加熱面溫度變化及分怖情形。結果顯示，鋁粉添加比例為0.05%，攪拌時間為5分鐘之試體隔熱效果最佳，一小時後背測溫度最高只有81℃。所有試體最高非加熱面溫度一小時後皆未超過260℃，符合A級(阻熱性)防火門規定。120分鐘後則趨於穩定，具有填充防火門等之實質使用價值。

關鍵字

無機聚合物 ； 孔隙 ； 高溫 ； 耐火

並列摘要

The present research added aluminum powder to the geopolymer to form an uniformly distributed pores. It would not only help in reducing the weight, but also effectively isolating the heat and hopefully would satisfy the requirement of CNS12514 specification. A preliminary study was made by taking the ratio of aluminum powder as well as the times of mixing as parameters. 12cm diameter circular test cakes were made to testify the performance in forming and cracking process and a data bank was established accordingly. Then, the most efficient four formula were adopted to made the formal 20 cm diameter round specimen for experiment. A special designed oven was used to heat one side of the specimen by CNS12514 standard temperature increased curve, and the temperatures at the 5 locations in the back were measured every minute up to a duration of 7 hours.. The results revealed that the best performance was given by the case of adding 0.05% of aluminum powder, and when the mixing time was 5 minutes, the back temperature after one hour of heating was only 81 ℃. The back temperature after one hour of heating were not exceed 260 ℃ for all the specimen. It is indeed satisfied the requirements of Class A (resistive heat) fire door, and showed an essentially valuable in filling fire resistant doors.

並列關鍵字

Geopolymer ； Porosity ； High Temperature ； Fire Resistance

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