基于工业废料的低导热系数地质聚合物泡沫材料

Geopolymer Foam with Low Thermal Conductivity Based on Industrial Waste.

作者信息

Bazan Patrycja, Figiela Beata, Kozub Barbara, Łach Michał, Mróz Katarzyna, Melnychuk Mykola, Korniejenko Kinga

机构信息

Faculty of Materials Engineering and Physics, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland.

Faculty of Civil Engineering, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland.

出版信息

Materials (Basel). 2024 Dec 16;17(24):6143. doi: 10.3390/ma17246143.

DOI:10.3390/ma17246143

PMID:39769743

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11677768/

Abstract

Geopolymer materials are increasingly being considered as an alternative to environmentally damaging concrete based on Portland cement. The presented work analyzed waste from mines and waste incineration plants as potential precursors for producing geopolymer materials that could be used to make lightweight foamed geopolymers for insulation applications. The chemical and phase composition, radioactivity properties, and leachability of selected precursors were analyzed. Then, geopolymer materials were produced, and their strength properties were examined through compression and flexural tests. The results of the strength tests guided the material selection for foamed geopolymer materials. Next, geopolymer foams were foamed with hydrogen peroxide and aluminum powder. The produced foamed materials were subjected to strength and thermal conductivity tests. The results demonstrated the great potential of mine waste in the synthesis of geopolymers and the production of lightweight geopolymer foams with good insulating properties.

摘要

地质聚合物材料越来越被视为一种替代对环境有害的基于波特兰水泥的混凝土的材料。所展示的工作分析了矿山废料和垃圾焚烧厂的废料，将其作为生产地质聚合物材料的潜在前驱体，这些材料可用于制造用于保温应用的轻质泡沫地质聚合物。分析了所选前驱体的化学和相组成、放射性特性及浸出性。然后，制备了地质聚合物材料，并通过压缩和弯曲试验检测其强度性能。强度试验结果为泡沫地质聚合物材料的选材提供了指导。接下来，用过氧化氢和铝粉对地质聚合物进行发泡。对所制备的泡沫材料进行强度和热导率测试。结果表明，矿山废料在地质聚合物合成以及生产具有良好保温性能的轻质地质聚合物泡沫方面具有巨大潜力。