Analysis of ultraviolet exposure effects on the surface properties of epoxy/graphene nanocomposite films on Mylar substrate
| Autor: | Marialaura Clausi, M. Gabriella Santonicola, Susanna Laurenzi, Luigi Schirone |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Aerospace Engineering Nanoparticle 02 engineering and technology Substrate (electronics) 010402 general chemistry 01 natural sciences law.invention Contact angle law nanocomposite films multi-layer-insulation UV-C radiation graphene mylar Irradiation Composite material Spin coating Nanocomposite Graphene Epoxy 021001 nanoscience & nanotechnology 0104 chemical sciences visual_art visual_art.visual_art_medium 0210 nano-technology |
| Popis: | In this paper, we present a study of the effects generated by exposure to UV-C radiation on nanocomposite films made of graphene nanoplatelets dispersed in an epoxy matrix. The nanocomposite films, at different nanoparticle size and concentration, were fabricated on Mylar substrate using the spin coating process. The effects of UV-C irradiation on the surface hydrophobicity and on the electrical properties of the epoxy/graphene films were investigated using contact angle measurements and electrical impedance spectroscopy, respectively. According to our results, the UV-C irradiation selectively degrades the polymer matrix of the nanocomposite films, giving rise to more conductive and hydrophobic layers due to exposure of the graphene component of the composite material. The results presented here have important implications in the design of spacecraft components and structures destined for long-term space missions. |
| Databáze: | OpenAIRE |
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