Continuous carbon fiber/crosslinkable poly(ether ether ketone) laminated composites with outstanding mechanical properties, robust solvent resistance and excellent thermal stability. (8th September 2018)

• Record Type: Journal Article
• Authors: Zhang, Yunhe; Tao, Wei; Zhang, Yu; Tang, Lin; Gu, Junwei; Jiang, Zhenhua
• Is Part Of: Composites science and technology. Volume 165(2018)
• Page Start: 148
• Page End: 153
• Publication Date: 2018-09-08
• Subjects: Polymer-matrix composites (PMCs) -- Curing -- Carbon fibers -- Mechanical properties -- Thermal properties; Composite materials -- Periodicals; Composite materials; Fibrous composites; Periodicals; 620.118
• DOI: 10.1016/j.compscitech.2018.06.020
• Languages: English
• ISSNs: 0266-3538

Abstract

Abstract: Continuous carbon fiber (CCF) reinforced polymeric composites have attracted significant attention in the aeronautic and automobile industries. In this study, novel CCF/poly(ether ether ketone) (PEEK) composites with robust solvent resistance, excellent thermal stability and outstanding mechanical properties were successfully fabricated via a facile solution impregnation process, mainly ascribed to the introduction of the crosslinkable phenylethynyl pendant to PEEK (PEP-PEEK) with excellent solubility. After the crosslinking reaction, PEP-PEEK presented robust solvent resistance, good thermal stability, and high mechanical properties. The longitudinal tensile strength of the CCF/PEP-PEEK composites significantly improved to 1610 MPa, which was 19 times stronger than the longitudinal tensile strength of PEP-PEEK. In the meantime, the CCF/PEP-PEEK composites also had a higher long-term operating temperature, excellent thermal stability and high heat distortion temperature. This study was performed as part of a larger effort to provide a simple and feasible method for the preparation of high quality continuous fiber reinforced poly(ether ether ketone) composites.