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纤维增强地质聚合物泡沫的设计与表征

Design and characterization of geopolymer foams reinforced with fibres.

作者信息

Walbrück Katharina, Witzleben Steffen, Stephan Dietmar

机构信息

Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359, Rheinbach, Germany.

Building Materials and Construction Chemistry, Department of Civil Engineering, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355, Berlin, Germany.

出版信息

Heliyon. 2024 Aug 8;10(16):e35947. doi: 10.1016/j.heliyon.2024.e35947. eCollection 2024 Aug 30.

DOI:10.1016/j.heliyon.2024.e35947
PMID:39253157
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11382080/
Abstract

This paper presents the results of the optimisation and characterization of Miscanthus fibre reinforced geopolymer foams based on fly ash and represents an important step forward in the development of a sustainable and environmentally friendly insulation material. Miscanthus belongs to a promising group of renewable raw materials with favourable thermal insulation properties. Design of experiment (DoE) were used to optimize the thermal conductivity and compressive strength of e reinforced geopolymer foams. In addition, the samples was analyzed using X-ray diffraction (XRD), Field emission scanning electron microscopy (SEM) and Fourier-Transform Infrared Spectroscopy (FTIR). Mixtures with a low thermal conductivity of 0.056 W (m K) and a porosity of 79 vol% achieved a compressive strength of only 0.02 MPa. In comparison, mixtures with a thermal conductivity of 0.087 W (m K) and a porosity of 58 vol% achieved a compressive strength of 0.45 MPa. Based on the determined parameters especially due to the low compressive strength, an application as cavity insulation or insulation between rafters is possible.

摘要

本文介绍了基于粉煤灰的芒草纤维增强地质聚合物泡沫的优化和表征结果，代表了可持续和环保隔热材料开发的重要进展。芒草属于具有良好隔热性能的有前途的可再生原材料组。采用实验设计（DoE）来优化增强地质聚合物泡沫的热导率和抗压强度。此外，使用X射线衍射（XRD）、场发射扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）对样品进行了分析。热导率为0.056W/（m·K）且孔隙率为79体积%的混合物的抗压强度仅为0.02MPa。相比之下，热导率为0.087W/（m·K）且孔隙率为58体积%的混合物的抗压强度为0.45MPa。基于所确定的参数，特别是由于抗压强度较低，有可能用作空腔隔热材料或椽子间隔热材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/eeb9d661141c/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/ebd6b330bd99/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/25b379f8be28/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/3952358d7fa1/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/483fb3317a0c/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/453d3fa6cd8e/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/6e885c9080cc/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/0979e735b12c/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/eeb9d661141c/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/ebd6b330bd99/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/25b379f8be28/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/3952358d7fa1/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/483fb3317a0c/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/453d3fa6cd8e/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/6e885c9080cc/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/0979e735b12c/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7cab/11382080/eeb9d661141c/gr8.jpg

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