Processing, Structure, and Properties of Lignin- and CNT-Incorporated Polyacrylonitrile-Based Carbon Fibers

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• 作者：H. Clive Liu ; An-Ting Chien ; Bradley A. Newcomb ; Yaodong Liu ; Satish Kumar
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2015
• 出版时间：September 8, 2015
• 年：2015
• 卷：3
• 期：9
• 页码：1943-1954
• 全文大小：622K
• ISSN：2168-0485

文摘

Composite fibers comprised of lignin, polyacrylonitrile (PAN), and carbon nanotubes (CNT) were successfully fabricated by gel-spinning technology. Wide angle X-ray diffraction (WAXD), infrared spectroscopy, and thermal characterizations were used to identify the effects of lignin and CNT on the physical structure and stabilization process of gel-spun precursor fibers. PAN, PAN/lignin, and PAN/lignin/CNT precursors have been converted to carbon fibers under identical stabilization and carbonization conditions. When carbonized at 1100 掳C, PAN/lignin carbon fiber exhibits comparable mechanical properties to PAN carbon fiber. Raman spectroscopy studies suggested differences between the carbon fibers when lignin and CNTs were incorporated.