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| Preparation and Properties of Composites of Polyvinyl Alcohol Grafted Graphene Oxide/thermoplastic Polyurethane |
Xing ZHOU1, Bin HU1, Wenqiang XIAO1, Hao JIANG1, Lijun ZHANG1, Zhengjun WANG1, Hailai LIN1, Jun BIAN1( ), Xinwei ZHAO2 |
1 School of Materials Science and Engineering, XiHua University, Chengdu 610039, China.
2 Department of Physics, Tokyo University of Science, Tokyo 162-8601, Japan. |
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Cite this article:
Xing ZHOU, Bin HU, Wenqiang XIAO, Hao JIANG, Lijun ZHANG, Zhengjun WANG, Hailai LIN, Jun BIAN, Xinwei ZHAO. Preparation and Properties of Composites of Polyvinyl Alcohol Grafted Graphene Oxide/thermoplastic Polyurethane. Chinese Journal of Materials Research, 2017, 31(11): 874-880.
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Abstract Composites of GO-g-PVA/TPU were prepared by using polyvinyl alcohol (PVA) grafted graphene oxide as filler and thermoplastic polyurethane (TPU) as matrix by melt blending method. The structure and properties of the resultant composites were characterized by means of FTIR, DSC, DMA and tensile tests. DSC tests show that the addition of GO-g-PVA increased the crystallization temperature of the composites. When the content (mass fraction%) of GO-g-PVA was 4%, the crystallization temperature of GO-g-PVA/TPU increased by 28.8℃ in contrast to that of the plain TPU. Tensile tests show that the modulus of GO-g-PVA/TPU composites increased with the increasing filler content when the content of GO-g-PVA was higher than 1%. DMA analysis indicated that GO-g-PVA enhanced the storage modulus and loss modulus of GO-g-PVA/TPU composites. Shape memory properties results show that the addition of GO-g-PVA significantly improved the shape fixed rate (Rf) of the composites. When the content of GO-g-PVA was 4%, the Rf of the composite was 87.5%, which increased by 20% compared with that of pure TPU. However, with the increasing amount of GO-g-PVA the shape recovery ratio (Rr) of the composite decreased generally at 50℃, and the composites showed higher Rr value at high temperature rather than at low temperature.
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Received: 01 November 2016
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| Fund: Supported by General Research Project of Sichuan Provincial Education Department (No. 17ZB0422) Open Research Subject of Key Laboratory of Special Materials and Preparation Technology (No. SZjj2017-066, SZjj2015-086), National Undergraduate Training Programs for Innovation and Entrepreneurship (Nos. 201710623098 & 201510623033), Xihua University Young Scholars Training Program (No. 01201404) |
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