Zaidi Mohammed, Baillis Dominique, Naouar Naim, Depriester Michael, Delattre François
Unité de Chimie Environnementale et Interactions sur le Vivant (UR 4492, UCEIV), SFR Condorcet FR CNRS 3417, Littoral Côte d'Opale University, 145 Avenue Maurice Schumann, 59140 Dunkerque, France.
LaMCoS, INSA-Lyon, CNRS UMR 5259, Université de Lyon, 69621 Villeurbanne, France.
Materials (Basel). 2023 Sep 20;16(18):6318. doi: 10.3390/ma16186318.
The growing awareness of the environment and sustainable development has prompted the search for solutions involving the development of bio-based composite materials for insulating applications, offering an alternative to traditional synthetic materials such as glass- and carbon-reinforced composites. In this study, we investigate the thermal and microstructural properties of new biocomposite insulating materials derived from flaxseed-gum-filled epoxy, with and without the inclusion of reinforced flax fibers. A theoretical approach is proposed to estimate the thermal conductivity, while the composite's microstructure is characterized using X-ray Computed Tomography and image analysis. The local thermal conductivity of the flax fibers and the flaxseed gum matrix is identified by using effective thermal conductivity measurements and analytical models. This study provides valuable insight into the thermal behavior of these biocomposites with varying compositions of flaxseed gum and epoxy resin. The results obtained could not only contribute to a better understanding the thermal properties of these materials but are also of significant interest for advanced numerical modeling applications.
对环境和可持续发展的认识不断提高，促使人们寻求涉及开发用于绝缘应用的生物基复合材料的解决方案，为玻璃和碳增强复合材料等传统合成材料提供了替代方案。在本研究中，我们研究了由填充亚麻籽胶的环氧树脂制成的新型生物复合绝缘材料的热性能和微观结构性能，该材料有无增强亚麻纤维。提出了一种理论方法来估计热导率，同时使用X射线计算机断层扫描和图像分析来表征复合材料的微观结构。通过有效的热导率测量和分析模型确定亚麻纤维和亚麻籽胶基体的局部热导率。本研究为这些具有不同亚麻籽胶和环氧树脂组成的生物复合材料的热行为提供了有价值的见解。获得的结果不仅有助于更好地理解这些材料的热性能，而且对于先进的数值建模应用也具有重要意义。
