Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 89, Issue -, Pages 47-55Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2016.02.016
Keywords
Polymer-matrix composites (PMCs); Mechanical properties; Discontinuous reinforcement; Injection moulding
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In order to employ polyethersulfone (PES) in cryogenic engineering field, its cryogenic mechanical performance should be examined and should also be improved to meet the high requirement for cryogenic engineering application. In this work, pure PES, graphene oxide (GO)/PES, short carbon fiber (SCF)/PES, GO/SCF/PES and GO-coated SCF/PES composites are prepared using the extrusion compounding and injection molding techniques. The tensile and flexural properties of these composites are systematically investigated at a typical cryogenic temperature (77 K). It is shown that the cryogenic mechanical properties are enhanced by the addition of GO, SCFs and coated-SCFs. In particular, the GO-coated SCF/PES composites display the greatly enhanced cryogenic mechanical properties with the highest values compared to other PES composites. In addition, it is exhibited that the cryogenic mechanical properties at 77 K of PES and its composites are far higher than those at room temperature (RT). (C) 2016 Elsevier Ltd. All rights reserved.
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