The Impact of Carbon Nanofibres on the Interfacial Properties of CFRPs Produced with Sized Carbon Fibres.

Autor: Zhang Z; School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK., Li X; School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK., Jestin S; CANOE, Le Centre Technologique Nouvelle Aquitaine Composites & Matériaux Avancés, Bât CHEMINNOV-ENSCBP, 33600 Pessac, France., Termine S; Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 10682 Athens, Greece., Trompeta AF; Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 10682 Athens, Greece., Araújo A; Materials and Composite Structures Unit, Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), 4000-014 Porto, Portugal.; LAETA, Associate Laboratory of Energy, Transports and Aeronautics, 4000-014 Porto, Portugal., Santos RM; Materials and Composite Structures Unit, Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), 4000-014 Porto, Portugal., Charitidis C; Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, 10682 Athens, Greece., Dong H; School of Metallurgy and Materials, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
Jazyk: angličtina
Zdroj: Polymers [Polymers (Basel)] 2021 Oct 09; Vol. 13 (20). Date of Electronic Publication: 2021 Oct 09.
DOI: 10.3390/polym13203457
Abstrakt: In this work, different amounts of CNFs were added into a complex formulation to coat the CFs surfaces via sizing in order to enhance the bonding between the fibre and the resin in the CF-reinforced polymer composites. The sized CFs bundles were characterised by SEM and Raman. The nanomechanical properties of the composite materials produced were assessed by the nanoindentation test. The interfacial properties of the fibre and resin were evaluated by a push-out method developed on nanoindentation. The average interfacial shear strength of the fibre/matrix interface could be calculated by the critical load, sheet thickness and fibre diameter. The contact angle measurements and resin spreadability were performed prior to nanoindentation to investigate the wetting properties of the fibre. After the push-out tests, the characterisation via optical microscopy/SEM was carried out to ratify the results. It was found the CFs sizing with CNFs (1 to 10 wt%) could generally increase the interfacial shear strength but it was more cost-effective with a small amount of evenly distributed CNFs on CFs.
Databáze: MEDLINE
Externí odkaz: