|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||K-81: Functionalization of Piassava Fibers with Graphene Oxide
||Fernanda Santos da Luz, Fabio da Costa Garcia Filho, Ulisses Oliveira Costa, Michelle Souza Oliveira, Luana Cristyne da Cruz Demosthenes, Artur Camposo Pereira, Wendell Bruno Almeida Bezerra, Sergio Neves Monteiro
|On-Site Speaker (Planned)
||Fernanda Santos da Luz
Natural lignocellulosic fibers have been shown to be promising for the substitution of synthetic fibers such as glass and aramid fibers. However, the heterogeneity on their surface may cause dispersion in their properties. In order to circumvent this shortcoming, chemical treatments are applied. In the present work the influence of both mercerization treatment with NaOH and the functionalization with graphene (GO) on the surface of piassava fiber were evaluated. For this, tests of pullout were performed to verify the interfacial adhesion between the piassava fiber with different treatments and the epoxy resin DGEBA/TETA. The results showed that the addition of GO in the piassava improved the compatibility between the fiber (hydrophilic) and the matrix (hydrophobic), due to the amphiphilic characteristics of the GO, which allows new engineering applications.