Preparation process and properties of exfoliated graphite nanoplatelets filled Bisphthalonitrile nanocomposites |
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| Authors: | Yajie Lei Guo-Hua Hu Rui Zhao Heng Guo Xin Zhao Xiaobo Liu |
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| Institution: | 1. Research Branch of Functional Materials, Institute of Microelectronic & Solid State Electronic, High-Temperature Resistant Polymers and Composites Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China;2. CNRS-Université de Lorraine, Laboratoire Réactions et Génie des Procédés, UPR3349, ENSIC, 1 rue Grandville, BP 20451, Nancy F-54000, France |
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| Abstract: | Exfoliated graphite nanoplatelets (xGnP) filled 4,4'-Bis (3,4-dicyanophenoxy) biphenyl (BPh) nanocomposites were prepared by a resin transfer molding process. The rheological behavior of the BPh pre-polymer, and the morphology and electrical, mechanical and thermal properties of the xGnP/BPh nanocomposites were systematically investigated. The results showed that the xGnP/BPh pre-polymer possessed a higher complex viscosity and storage modulus than the pure BPh and that the xGnP could significantly enhance the mechanical and electrical properties of the resulted nanocomposites. The electrical percolation threshold of the xGnP/BPh nanocomposites was between 5 and 10 wt% xGnP. The flexural strength and modulus of the xGnP/BPh nanocomposites with 10 wt% xGnP exhibited maximum values and their thermal stabilities were greatly improved. Those novel xGnP/BPh nanocomposites could have advanced applications in areas like aerospace and military industry. |
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