碳纤维因其沿纤维轴高度取向的石墨结构,在导热领域展现了广阔的应用前景和发展潜力,不仅能够有效地传导热量,还具备轻质、高强度、高模量、低热膨胀系数等优点,被广泛应用于航空航天、军事装备、机械设备、微电子等工业领域。主要概括了碳纤维的导热机理,介绍了中间相沥青基碳纤维、聚丙烯腈基碳纤维、聚酰亚胺基碳纤维的研究进展,探讨了导热碳纤维复合材料的导热性能和导热差异,并展望了导热碳纤维面临的挑战与发展趋势。
Carbon fibers have shown broad application prospects and development potential in the field of thermal conductivity due to their highly oriented graphite structure along the fiber axis.Carbon fibers not only exhibit excellent thermal conductivity but also possess advantages such as lightweight,high strength,high modulus,and a low thermal expansion coefficient.These properties make them widely applicable in various industrial fields including aerospace,military equipment,mechanical engineering,and microelectronics.The thermal conductivity mechanisms of carbon fibers were summarized.Moreover,the research progress on mesophase pitch-based carbon fibers,polyacrylonitrile-based carbon fibers and polyimide-carbon fibers were introduced.The discussion delved into the thermal conductivity characteristics and the variations in thermal conductivity within carbon fiber composites.Furthermore,the challenges and development trends of heat-conductive carbon fibers were prospected.
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基金资助
国家自然科学基金(52403123);中国博士后科学基金项目(2023M733598)
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