Effect of phenoxy-based coating resin for reinforcing pitch carbon fibers on the interlaminar shear strength of PA6 composites |
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| Affiliation: | 1. Composites Research Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam 51508, Republic of Korea;2. School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea;1. Department of Advanced Fibro-Science, Kyoto Institute of Technology, Kyoto, 606-8585, Japan;2. Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, PR China;1. Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China;2. School of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, PR China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China;1. Research and Innovation Centre, BMW Group, Knorrstraße 147, D-80788 Munich, Germany;2. Cluster of Excellence MERGE, Chemnitz University of Technology, Reichenhainer Straße 31/33, D-09126 Chemnitz, Germany;3. Department of Mechanics and Machine Design, Opole University of Technology, ul. S. Mikolajczyka 5, PL-45271 Opole, Poland;1. CAS Key Laboratory for Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, China;2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China;3. National Engineering Laboratory for Carbon Fibers Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, China |
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| Abstract: | Carbon fiber-reinforced thermoplastic composites have not been considered as constituent materials for structural parts due to the poor interfacial adhesion between the fiber and the thermoplastic matrix. In this work, polyamide 6 (PA6) composites with pitch carbon fibers (pCF) were fabricated by alternatively stacking PA6 films and pCF fabrics followed by being pressed. In order to improve the interfacial adhesion, phenoxy resin-based materials were coated on the surface of the fiber. The surface analyses of the fiber were carried out by XPS, TGA and dynamic contact angle method. Interlaminar shear strength (ILSS) of the composites was measured to evaluate the effect of the coating materials. The results showed that the composites with the coated pCF had higher ILSS than that with neat pCF by more than 20%. This indicated that a proper coating material can improve mechanical properties of the PA6 composites, which can be applied to the structural parts. |
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| Keywords: | A Polymer-matrix composites (PMCs) A Carbon fibers B Mechanical properties D Surface analysis |
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