TY - GEN
T1 - Surface modification of fibres with graphene oxide for interface improvement in composites
AU - Zeng, Lei
AU - Liu, Xuqing
AU - Chen, Xiaogang
AU - Soutis, Constantinos
PY - 2019
Y1 - 2019
N2 - A novel biomimetic surface modification method for fibres and the improvement on adhesion with epoxy resin was demonstrated. Inspired by the composition of adhesive proteins in mussels, the thin layer of poly(dopamine) (PDA) was self-polymerized onto the surface of carbon and aramid fibres. The graphene oxide (GO) was then grafted on the surface of PDA-coated fibres. The XPS results indicated successfully grafting of GO on the PDA-coated carbon and aramid fibres. The SEM observation showed the uniform coating of PDA and GO on the surface of fibres. The modification could increase the roughness of fibre surface. The single fibre tensile test and microbond test were carried out to evaluate the mechanical properties of the modified fibres. The interfacial shear strength of GO-PDA-fibres composites was significantly improved. Also, the bulk structure of fibres was protected by PDA and GO modification, and this increased the tensile strength of single fibre.
AB - A novel biomimetic surface modification method for fibres and the improvement on adhesion with epoxy resin was demonstrated. Inspired by the composition of adhesive proteins in mussels, the thin layer of poly(dopamine) (PDA) was self-polymerized onto the surface of carbon and aramid fibres. The graphene oxide (GO) was then grafted on the surface of PDA-coated fibres. The XPS results indicated successfully grafting of GO on the PDA-coated carbon and aramid fibres. The SEM observation showed the uniform coating of PDA and GO on the surface of fibres. The modification could increase the roughness of fibre surface. The single fibre tensile test and microbond test were carried out to evaluate the mechanical properties of the modified fibres. The interfacial shear strength of GO-PDA-fibres composites was significantly improved. Also, the bulk structure of fibres was protected by PDA and GO modification, and this increased the tensile strength of single fibre.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85084161602&partnerID=MN8TOARS
M3 - Conference contribution
BT - ECCM18 - 18th European Conference on Composite Materials
ER -