Journal
MATERIALS
Volume 14, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/ma14081835
Keywords
laminate; CFRP– carbon fiber reinforced polymers; graphene oxide; DRIFT spectroscopy; Raman spectroscopy
Categories
Funding
- Ministry of Science and Higher Education of Poland [16.16.160.557]
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In this study, carbon fiber reinforced polymer composites were enhanced by adding graphene oxide nanoparticles to improve adhesion and strength. The results showed an increase in strength and changes in adhesion between components and crack propagation. Spectroscopic methods were used to explain the effects, identifying chemical bonds between the components of the composites.
Carbon fiber reinforced polymer composites are a dynamically developing group of lightweight composites for applications in the automotive, wind energy, aerospace, and sports sectors. Interfacial connection is the weakest place in these materials. In this study, an attempt was made to improve adhesion between carbon fiber and epoxy resin. For this purpose, nanoparticles of graphene oxide were added to a polymer matrix. The results of the three-point bend test showed that the strength of samples with added graphene oxide increased. Improvement of adhesion between components, reduction of the pull-out effect and change in the method of crack propagation were observed. An attempt was made to explain this effect using spectroscopic methods, both IR and Raman. On the basis of the obtained results, chemical bonds between the individual components of the composites were identified.
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