Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 181, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2019.107698
Keywords
Polymer-matrix composites (PMCs); Electrical properties; Hardness testing; Casting
Categories
Funding
- Space Supporting Fund from China Aerospace Science and Industry Corporation [2019-HT-XG, 2018-HT-XG]
- Foundation of Aeronautics Science Fund [2017ZF53071]
- Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province of China [2019JC-11]
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Reduced graphene oxide with honeycomb structure (rGH) was successfully constructed and prepared by freeze-drying & thermal annealing using aluminium oxide (Al2O3) honeycomb as a template. The obtained rGH frameworks were then immersed into epoxy resins to fabricate the corresponding rGH/epoxy composites. The incorporated rGH could obviously enhance the electromagnetic interference shielding effectiveness (EMI SE) and electrical conductivity of the epoxy composites. When the mass fraction of rGH was 1.2 wt%, the obtained rGH/epoxy composites had the maximum EMI SE of 38.0 dB (at X-band) and electrical conductivity of 40.2 S/m, about 6.3 and 1340 times of the rGO/epoxy composites (6.0 dB and 0.03 S/m) with the same loading of rGO, respectively. Meantime, the introduction of rGH could be beneficial to improving the thermal stabilities of the rGH/epoxy composites.
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