Lee, Sora Ham, Soojin Youn, Sang Jun Chung, Yong Sik Lee, Sungho 2024-01-19T14:31:09Z 2024-01-19T14:31:09Z 2022-01-10 2021-06-30 0888-5885 https://pubs.kist.re.kr/handle/201004/116836 The effect of the surface roughness of carbon fibers (CFs) on interfacial adhesion was investigated by comparing polyamide(PA)6-based composites using a commercial CF (T700) and a low-cost textile polyacrylonitrile-based CF (TexCF). The tensile strength of T700CFs was 66% higher than that of TexCFs; however, the Izod impact, interlaminar shear, and flexural strength of the long-fiber-reinforced thermoplastic (LFT) composites fabricated using the two CFs were significantly similar. The TexCFs with a rougher surface had a higher wettability than that of T700CFs, resulting in a higher interfacial shear strength value of TexCF/PA6 composites despite the much lower tensile strength of TexCFs than that of T700CFs. This suggests that the high surface roughness of CFs plays a critical role in strengthening the interfacial adhesion between the CFs and the matrix: It is concluded that low-cost CFs with high roughness are promising reinforcement candidates for the fabrication of adequate LFT composites despite their low tensile strength. English AMER CHEMICAL SOC POLYACRYLONITRILE FIBERS MECHANICAL-PROPERTIES GRAPHITE FIBERS EPOXY MATRICES PRECURSORS MICROSTRUCTURE Effect of Textile PAN-Based Carbon Fibers with Rough Surface on Interfacial Adhesion in PA6 Composites Article 10.1021/acs.iecr.1c01015 1 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.60, no.25, pp.9088 - 9097 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 60 25 9088 9097 scie scopus 000670420500013 2-s2.0-85110234396 Engineering, Chemical Engineering Article POLYACRYLONITRILE FIBERS MECHANICAL-PROPERTIES GRAPHITE FIBERS EPOXY MATRICES PRECURSORS MICROSTRUCTURE Polyacrylonitrile carbon fiber composites polyamide interfacial adhesion