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A platform for research: civil engineering, architecture and urbanism
Enhanced mechanical performances of epoxy asphalt adhesives modified by graphene oxide
The graphene oxide (GO) was used to improve the mechanical performances of epoxy asphalt (EA) by preparing GO/EA composite. The influence of the GO dosage on the micro-structure, curing rheology, mechanical and thermal properties of GO/EA was investigated. According to the XRD and Fourier transform infrared spectra, the GO was exfoliated in the EA matrix and modified EA by non-covalent strategy. GO decreased the rotational viscosity of EA and increased the pot life. The GO/EA with 0.1 wt.% GO showed excellent toughness that the elongation at break was increased by 164%, and the tensile and pull-off adhesion strength were nearly equal to that of EA. The addition of GO improved the original thermal decomposition temperature (T 5%), glass transition temperature (T g), compatibility and stiffness of the EA. The improved mechanical and thermal properties of GO/EA may be attributed to (1) excellent performances of GO and (2) inhibiting effect of GO on the EA curing process.
Enhanced mechanical performances of epoxy asphalt adhesives modified by graphene oxide
The graphene oxide (GO) was used to improve the mechanical performances of epoxy asphalt (EA) by preparing GO/EA composite. The influence of the GO dosage on the micro-structure, curing rheology, mechanical and thermal properties of GO/EA was investigated. According to the XRD and Fourier transform infrared spectra, the GO was exfoliated in the EA matrix and modified EA by non-covalent strategy. GO decreased the rotational viscosity of EA and increased the pot life. The GO/EA with 0.1 wt.% GO showed excellent toughness that the elongation at break was increased by 164%, and the tensile and pull-off adhesion strength were nearly equal to that of EA. The addition of GO improved the original thermal decomposition temperature (T 5%), glass transition temperature (T g), compatibility and stiffness of the EA. The improved mechanical and thermal properties of GO/EA may be attributed to (1) excellent performances of GO and (2) inhibiting effect of GO on the EA curing process.
Enhanced mechanical performances of epoxy asphalt adhesives modified by graphene oxide
Si, Jingjing (author) / Wang, Junyan (author) / Li, Yang (author) / Ma, Junfei (author) / Ruan, Wei (author) / Yu, Xin (author) / Jiang, Ruiling (author)
Road Materials and Pavement Design ; 24 ; 1050-1064
2023-04-03
15 pages
Article (Journal)
Electronic Resource
Unknown
Epoxy-ended hyperbranched polymer-grafted graphene oxide for cold-mixed epoxy asphalt modification
| Taylor & Francis Verlag | 2024