A study on the rheological properties and modification mechanism of graphene oxide/polyurethane/SBS-modified asphalt.

ABSTRACT: To study the effect of graphene oxide (GO) on thermoplastic polyurethane (TPU)/styrene-butadiene-styrene (SBS)-modified asphalt and reveal the modification mechanism, GO/TPU/SBS-modified asphalt was prepared by high-speed shearing Hongjuan et al. (2020). The physical properties of the modified asphalt were measured via a basic index test, and the dynamic rheological behavior of the modified asphalt was characterized by a dynamic shear rheometer (DSR), a bending beam rheometer (BBR), and other technical means. Moreover, double-beam UV-visible (UV-Vis) spectrophotometry and Fourier-transform infrared spectroscopy (FTIR) were conducted to determine the mechanism of asphalt modification from the microscopic perspective. The experimental results reveal that the GO content can improve the basic

SUBMITTER: Li S 

PROVIDER: S-EPMC8901053 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature