期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 68, 期 15-16, 页码 3322-3329出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2008.08.033
关键词
Interface; Fiber; Nano-composite
PAN core-PMMA shell nanofiber fabric was prepared by electrospinning of polymer blends to reinforce 2,2 bis-[4-(methacryloxypropoxy)-phenyl]-propane (Bis-GMA) a dental resin system. The core-shell structure of the PAN-PMMA nanofiber was confirmed by scanning electron microscopy (SEM) and transmission electron microscope/energy dispersive spectroscopy (TEM/EDS) observation. The flexural properties and dynamic mechanical properties of the PAN-PMMA nanofiber reinforced Bis-GMA composites were studied. Results showed that PMMA shell was partly dissolved with the Bis-GMA resin. After photopolymerization, liner PMMA chains interpenetrated and entangled with the dental resin network, which resulted in an in situ nano-interface in the shell structure. Improvement of the mechanical properties of the PAN-PMMA nanofiber reinforced Bis-GMA composites has been achieved through this nano-interface formation. (C) 2008 Elsevier Ltd. All rights reserved.
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