用于建筑应用的含多壁碳纳米管的氯氧化镁水泥复合材料。

Magnesium Oxychloride Cement Composites with MWCNT for the Construction Applications.

作者信息

Lojka Michal, Lauermannová Anna-Marie, Sedmidubský David, Pavlíková Milena, Záleská Martina, Pavlík Zbyšek, Pivák Adam, Jankovský Ondřej

机构信息

Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic.

Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic.

出版信息

Materials (Basel). 2021 Jan 20;14(3):484. doi: 10.3390/ma14030484.

DOI:10.3390/ma14030484

PMID:33498565

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7864339/

Abstract

In this contribution, composite materials based on magnesium oxychloride cement (MOC) with multi-walled carbon nanotubes (MWCNTs) used as an additive were prepared and characterized. The prepared composites contained 0.5 and 1 wt.% of MWCNTs, and these samples were compared with the pure MOC Phase 5 reference. The composites were characterized using a broad spectrum of analytical methods to determine the phase and chemical composition, morphology, and thermal behavior. In addition, the basic structural parameters, pore size distribution, mechanical strength, stiffness, and hygrothermal performance of the composites, aged 14 days, were also the subject of investigation. The MWCNT-doped composites showed high compactness, increased mechanical resistance, stiffness, and water resistance, which is crucial for their application in the construction industry and their future use in the design and development of alternative building products.

摘要

在本论文中，制备并表征了以多壁碳纳米管（MWCNTs）为添加剂的基于氯氧化镁水泥（MOC）的复合材料。制备的复合材料含有0.5 wt.%和1 wt.%的MWCNTs，并将这些样品与纯MOC 5相参考样品进行比较。使用多种分析方法对复合材料进行表征，以确定其相组成、化学组成、形态和热行为。此外，还研究了14天龄期复合材料的基本结构参数、孔径分布、机械强度、刚度和湿热性能。MWCNT掺杂的复合材料表现出高致密性、更高的机械抗性、刚度和耐水性，这对于它们在建筑行业的应用以及未来在替代建筑产品设计和开发中的使用至关重要。