Lepak-Kuc Sandra, Kiciński Mateusz, Michalski Przemyslaw P, Pavlov Krystian, Giorcelli Mauro, Bartoli Mattia, Jakubowska Malgorzata
Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, Sw. Andrzeja Boboli 8, 02-525 Warsaw, Poland.
Solid State Ionics Division, Faculty of Physics, Warsaw University of Technology, Koszykowa 75 Street, 00-662 Warsaw, Poland.
Materials (Basel). 2021 Sep 14;14(18):5304. doi: 10.3390/ma14185304.
Carbon materials are becoming crucial in several industrial sectors. The drawbacks of these materials include their high cost and oil-based essence. In recent years, recycled materials have become possible alternative sources of carbon with several advantages. Firstly, the production of this alternative source of carbon may help to reduce biomass disposal, and secondly, it contributes to CO sequestration. The use of carbon derived from recycled materials by a pyrolysis treatment is called biochar. Here, we present composite materials based on different biochar filler contents dispersed in several thermoplastic polymer matrixes. Electrical conductivity and tensile break strength were investigated together with the material characterisation by DTA/TGA, XRD, and scanning electron microscopy (SEM) imaging. Materials with good flexibility and electrical conductivity were obtained. The local ordering in composites resembles both biochar and polymer ordering. The similarity between biochar and carbon nanotubes' (CNTs) XRD patterns may be observed. As biochar is highly cost-effective, the proposed composites could become a valid substitute for CNT composites in various applications.
碳材料在多个工业领域正变得至关重要。这些材料的缺点包括成本高和基于石油的本质。近年来，回收材料已成为具有多种优势的碳的替代来源。首先，这种碳替代来源的生产可能有助于减少生物质处理，其次，它有助于碳封存。通过热解处理使用源自回收材料的碳称为生物炭。在此，我们展示了基于分散在几种热塑性聚合物基体中的不同生物炭填料含量的复合材料。研究了电导率和拉伸断裂强度，并通过差示热分析/热重分析（DTA/TGA）、X射线衍射（XRD）和扫描电子显微镜（SEM）成像对材料进行了表征。获得了具有良好柔韧性和导电性的材料。复合材料中的局部有序性类似于生物炭和聚合物的有序性。可以观察到生物炭与碳纳米管（CNT）的XRD图谱之间的相似性。由于生物炭具有很高的成本效益，所提出的复合材料在各种应用中可能成为碳纳米管复合材料的有效替代品。
