High performance carbon nanotube spun yarns from a crosslinked network |
| |
| Affiliation: | 1. CSIRO Materials Science and Engineering, P.O. Box 21, Belmont, Victoria 3216, Australia;2. Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China;3. Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, Victoria 3168, Australia;4. CSIRO Materials Science and Engineering, Bayview Avenue, Clayton, Victoria 3168, Australia;1. School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China;2. Department of Pharmacy, Zunyi Medical College, Zunyi 563000, China;1. Key Laboratory of Ecotextiles, Ministry of Education, Jiangnan University, Wuxi, 214122, China;2. Division of Advanced Nano-Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China;3. Division of Nanomaterials, Suzhou Institute of Nano-Tech and Nano-Bionics, Nanchang, Chinese Academy of Sciences, Nanchang, 330200, China;4. School of Textile Science & Engineering, Xi''an Polytechnic University, Xi''an, 710048, China;1. Department of Materials Science, Universidad Politécnica de Madrid, ETSI Caminos, C/Profesor Aranguren, 3, Madrid, Spain;2. IMDEA Materials Institute, Eric Kandel, 2, Tecnogetafe, 28906, Getafe, Madrid, Spain;1. Department of Chemistry, Dongguk University-Seoul, 30 Pildong-ro, Jung-gu, Seoul, 04620, South Korea;2. Carbon Composite Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, South Korea;3. Center for Nanotectonics, Department of Chemistry and KI for the NanoCentury, KAIST, Daejeon, 34141, South Korea |
| |
| Abstract: | We report a new method to create covalent crosslinks between carbon nanotubes (CNTs) with reduced intertube and interbundle spaces, for improving the mechanical properties of CNT spun yarns. This is achieved through the pretreatment of a CNT yarn with 4-carboxybenzenediazonium tetrafluoroborate to form reactive carboxyphenyl groups on the CNT sidewalls. These carboxyphenyl groups are then reacted with a multifunctional crosslinker hexa(methoxymethyl) melamine, leading to a highly crosslinked network within the yarn. The CNT yarns were characterized by X-ray photoelectron spectroscopy, focused ion beam scanning electron microscope, and also assessed for their mechanical properties. The results showed that the method developed effectively improved mechanical properties of CNT yarns: we are able to produce CNT yarns with a tensile strength up to 2.5 GPa and Young’s modulus 121 GPa. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
