Journal
RSC ADVANCES
Volume 5, Issue 94, Pages 77138-77146Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra11113g
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Funding
- National Natural Science Foundation of China [51078101, 51173033]
- Fundamental Research Funds for the Central Universities [HIT. BRETIII. 201224, 20132]
- Shanghai key Laboratory of Deep Space Exploration Technology [13dz2260100]
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Electron irradiation in outer space causes severe damage to the polymer materials of spacecrafts. An effective approach to prevent such damage is to incorporate nanoparticles into the polymeric materials. Herein, we fabricated modified cyanate ester (CE) and carbon/CE composites by the incorporation of reduced graphene oxide-TiO2(rGO-TiO2) nanoparticles and studied their resistance performance to electronic radiation. Compared with the carbon/TiO2/CE composite, the interlayer shear strength of the resulting carbon/rGO-TiO2/CE composite increased by 10.4% and its mass loss reduced by 16.5%. Scanning electron microcopy (SEM) images showed that there are more cracks at the fiber and resin interfaces of carbon/CE than at the interfaces of carbon/rGO-TiO2/CE after irradiation. X-ray photoelectron spectroscopy (XPS) investigation showed that irradiation with 160 keV electrons could break the chemical bonds at the surface layer of the pristine CE resin, which is effectively prevented by the incorporation of rGO-TiO2 nanoparticles.
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