Hierarchical carbon nanotube carbon fiber unidirectional composites with preserved tensile and interfacial properties
作者： Richard Li , Noa Lachman , Peter Florin , H. Daniel Wagner , Brian L. Wardle
DOI: 10.1016/J.COMPSCITECH.2015.04.014
关键词:
摘要: Hybrid hierarchical carbon-nanotube (CNT)-based composites, such as radially-aligned CNT arrays grown onto microfiber filaments, have significant potential to expand the performance and functionality of fiber reinforced composites. Here, a novel method for high-yield growth aligned CNTs on aerospace-grade carbon fibers (CFs) is demonstrated at composite level first time. Fuzzy plastics (fuzzy CFRP) unidirectional composites with >60% volume fraction are fabricated via vacuum-assisted resin infusion CNT-grafted tows using an unmodified epoxy. Preservation tensile modulus strength by longitudinal testing, consistent single-fiber tests. Fiber–matrix interface also unchanged revealed through continuously-monitored fragmentation Taken together, results provide needed new composite-level understanding structural laminates motivate future work CF integrated multifunctionality improved interlaminar intralaminar performance.
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