Journal
APPLIED SCIENCES-BASEL
Volume 8, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/app8091550
Keywords
graphene nanoplatelet; epoxy composite; water absorption
Categories
Funding
- Ministerio de Economia y Competitividad of Spain Government [MAT2016-78825-C2-1-R]
- Comunidad de Madrid [P2013/MIT-2862]
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In this study, the hydrothermal resistance of an epoxy resin (aircraft quality) reinforced with graphene is analyzed. Different geometries and aspect ratios (thickness and lateral dimensions) of graphene nanoplatelets were studied. The addition of these graphene nanoplatelets induces important advantages, such as an increase of the glass transition temperature and stiffness and an enhancement of barrier properties of the epoxy matrix, in spite of the excellent behavior of pristine resin. The effectiveness of graphene nanoplatelets increases with their specific surface area while their dispersion degree is suitable. Thinner nanoplatelets tend to wrinkle, decreasing their efficiency as nanofillers. Graphene used as reinforcement not only reduces the absorbed moisture content but also decreases its effect on the thermal and mechanical properties related to the matrix.
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