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Performance and Aging of Graphene Oxide/Polyurethane Nanocomposites

Published

Author(s)

David G. Goodwin

Abstract

Polymer nanocomposites (PNCs) containing graphene oxide (GO) can be used to enhance the mechanical strength, thermal properties, and barrier properties of a polymer. Although the properties of graphene are generally superior to GO, GO nanofillers are more cost effective and oftentimes easier to incorporate into polymer matrices. In this study, the performance properties of GO/waterborne polyurethane (WBPU) nanocomposites were compared to that of unfilled WBPU. The potential for GO release was also studied to determine coating durability and assess the environmental health and safety (EHS) risks of GO/WBPU nanocomposites with respect to ultraviolet (UV)-weathering. This was achieved by exposing GO/WBPU nanocomposites to a highly collimated, uniform flux of UV light under controlled temperature and humidity conditions. The materials released from GO/WBPU nanocomposites during weathering were removed by water spray and collected as run-off. UV-Visible (UV-Vis) and Raman spectroscopy methods were developed to measure the run-off suspensions, which potentially contained a mixture of suspended GO and polymer fragments.
Proceedings Title
Performance and Aging of Graphene Oxide/Polyurethane Nanocomposites
Conference Dates
May 15-17, 2017
Conference Location
National Harbor, MD

Citation

Goodwin, D. (2017), Performance and Aging of Graphene Oxide/Polyurethane Nanocomposites, Performance and Aging of Graphene Oxide/Polyurethane Nanocomposites, National Harbor, MD (Accessed February 29, 2024)
Created May 14, 2017, Updated February 3, 2020