Journal
COMPOSITES COMMUNICATIONS
Volume 29, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.coco.2021.101016
Keywords
Carbon fibres; Polymer-matrix composites; Curing; Microwave processing
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Funding
- National Natural Science Foundation of China [52105364, 51875288, 52090052]
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This study introduces a novel method of regionally manipulating the temperature distribution of CFRP laminates through frequency-selective absorption, achieved by designing metallic resonance structures. This technology enables localized heating of CFRP composites, with demonstrated applications in dynamically patterned thermal displays and uniform heating of laminates with non-uniform thickness.
Carbon fiber reinforced polymer (CFRP) composites are integral to today's industries. Curing is a vital process for manufacturing CFRP components. Recently, great attention has been devoted to curing CFRP components via controllable temperature gradients, taking their geometries and structures into consideration. Here, for the first time, we proposed an idea to regionally manipulate the temperature distribution of the CFRP laminate through frequency-selective absorption. Specifically, two kinds of periodically arranged metallic resonance structures (18 mu m thick) working at 915 MHz and 2.45 GHz were designed and fabricated. Frequency-selective absorption and thus zone-regulated microwave heating have been realized by introducing these ultrathin and flexible resonance structures on the CFRP laminate. On this basis, two applications have also been demonstrated, including a dynamically patterned thermal display and a uniform heating process on laminates with non-uniform thickness.
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