In situ assessment of carbon nanotube flow and filtration monitoring through glass fabric using electrical resistance measurement |
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| Affiliation: | 1. Department of Mechanical Engineering, Inha University, Inha-ro 100, Nam-gu, Incheon 22212, Republic of Korea;2. Department of Mechanical Engineering, Ulsan National Institute of Science and Technology, UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea;1. Department of Mechanical Engineering, Ulsan National Institute of Science and Technology, UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan 689-798, Republic of Korea;2. Department of Mechanical Design Engineering, Youngsan University, 288 Junam-ro, Yangsan-si, Kyungnam-do 626-790, Republic of Korea;1. Department of Mechanical and Manufacturing Engineering, Aalborg University, Fibigerstræde 16, 9220 Aalborg East, Denmark;2. Institut Jean Lamour (IJL), UMR 7198 CNRS – Université de Lorraine, Parc de Saurupt, 54011 Nancy, France;3. Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes cedex 3, France;1. Koc University, Mechanical Engineering Department, Rumelifeneri Yolu, Sariyer 34450, Istanbul, Turkey;2. Laboratory for Processing of Advanced Composites (LPAC), Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 12, Lausanne CH-1015, Switzerland;3. CNRS, Univ. Grenoble Alpes, 3SR Lab, F-38000 Grenoble, France;1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Soochow, 215123, PR China;2. National Engineering Laboratory for Carbon Fiber Preparation Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, PR China;3. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, PR China;1. The Composites Centre, Department of Aeronautics, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom;2. Polymer & Composite Engineering (PaCE) Group, Department of Chemical Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom;3. Departments of Chemistry and Materials, Imperial College London, London, SW7 2AZ, United Kingdom;4. Polymer & Composite Engineering (PaCE) Group, Institute for Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Str. 42, A-1090, Vienna, Austria;5. School of Aerospace Engineering, Universiti Sains Malaysia, 14300, Penang, Malaysia |
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| Abstract: | Filtration of nanofillers into porous fabric media is still an issue during the preparation of advanced fiber-reinforced composites. The assessment of resin/multiwall carbon nanotube (MWCNT) flow, MWCNT filtration, and the cure monitoring of glass fiber/carbon nanotube-polyester composites by means of the measurement of the electrical resistance was introduced. The vacuum-assisted resin transfer molding technique was used. The electrical resistances measured over the span of a composite were qualitatively correlated with MWCNT flow and the degree of MWCNT filtration. It was found that while the complexity of the fabrics could likely introduce preferential deposition of MWCNTs, their filtration is mainly affected by their dispersion state in the resin suspension. Relationships among critical parameters such as the lengths and diameters of MWCNTs, the inter- and intra-tow dimensions of glass fabrics, the dispersion level of MWCNTs, and the viscosity of nanocomposite samples are discussed and correlated to the filtration, cure, and flow phenomena. We showed that our method can also serve as an early warning to obviate defects in the resulting composite. |
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| Keywords: | A Nano-structures B Electrical properties D Process monitoring E Resin flow |
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