期刊
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
卷 216, 期 -, 页码 41-49出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mseb.2016.05.009
关键词
Polymer-matrix composites; Graphene; Poly (ether ether ketone); Surface crystallization; High-shear melt-blending
资金
- Office of Naval Research [BAA-13-001]
Using a high shear melt-processing method, graphene-reinforced polymer matrix composites (G-PMCs) were produced with good distribution and particle matrix interaction of biitrilayer graphene at 2 wt. % and 5 wt. % in poly ether ether ketone (2Gn-PEEK and 5Gn-PEEK). The morphology, structure, thermal properties, and mechanical properties of PEEK, 2Gn-PEEK and 5 Gn-PEEK were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), differential scanning calorirnetry (DSC), thermal gravimetric analysis (TGA), flexural mechanical testing, and dynamic mechanical analysis (DMA). Addition of graphene to PEEK induces surface crystallization, increased percent crystallinity, offers a composite that is thermally stable until 550 degrees C and enhances thermomechanical properties. Results show that graphene was successfully melt-blended within PEEK using this method. (C) 2016 Elsevier B.V. All rights reserved.
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