Uniaxially aligned electrospun fibers for advanced nanocomposites based on a model PVOH-epoxy system |
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| Affiliation: | 1. The New Zealand Institute for Plant & Food Research, Lincoln 7608, New Zealand;2. Department of Mechanical Engineering, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand;3. The MacDiarmid Institute for Advanced Materials and Nanotechnology, P.O. Box 600, Kelburn, Wellington 6140, New Zealand;4. Electrospinz Limited, 44 Lee St, Blenheim 7201, New Zealand;5. Department of Ergonomy, Design and Mechanical Engineering, Université de Technologie de Belfort Montbéliard, 90400 Sevenans, France;6. School of Engineering, University of Lincoln, Brayford Pool, Lincoln LN6 7TS, United Kingdom;1. School of Population Health, University of Auckland, New Zealand;2. School of Medicine, University of Auckland, New Zealand;3. Department of Psychological Medicine, University of Auckland, New Zealand;4. School of Nursing, University of Auckland, New Zealand;1. Department of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-744, Republic of Korea;2. Cell Development Group, Automotive & ESS Business Division, Samsung SDI Co. Ltd. 150-20, Gongse-ro, Giheung-gu, Yongin-si, Gyeonggi-do 446-577, Republic of Korea;3. Department of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of Korea;4. Department of Chemical Engineering, Soongsil University, Sangdo-5 dong, Dongjak-gu, Seoul 156-743, Republic of Korea;1. Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan;2. Department of Mechanical Engineering, Kun Shan University, Tainan 710, Taiwan;3. Department of Multimedia Design, National Formosa University, Yunlin 632, Taiwan |
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| Abstract: | This work demonstrates the potential of aligned electrospun fibers as the sole reinforcement in nanocomposite materials. Poly(vinyl alcohol) and epoxy resin were selected as a model system and the effect of electrospun fiber loading on polymer properties was examined in conjunction with two manufacturing methods. A proprietary electrospinning technology for production of uniaxially aligned electrospun fiber arrays was used. A conventional wet lay-up fabrication method is compared against a novel, hybrid electrospinning–electrospraying approach. The structure and thermomechanical properties of resulting composite materials were examined using scanning electron microscopy, dynamic mechanical analysis, thermogravimetric analysis, differential scanning calorimetry, Fourier transform infrared spectroscopy, and tensile testing. The results demonstrate that using aligned electrospun fibers significantly enhances material properties compared to unreinforced resin, especially when manufactured using the hybrid electrospinning–electrospraying method. For example, tensile strength of such a material containing only 0.13 vol% of fiber was increased by ～700%, and Young’s modulus by ～250%, with concomitant increase in ductility. |
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| Keywords: | A Nanocomposites B Thermal properties B Mechanical properties E Electrospinning |
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