The Role of Carbon Nanofiber Reinforcement on Organic Contaminant Release: Implications for Potable Water Pipe Technology Development

M. Salehi, K-T. Hsiao, A. Forster, A.J. Whelton
National Institute of Standards and Technology, US

Keywords: nanoparticle, carbon nanofiber, drinking water

Summary:

As North American metallic and cement drinking water pipelines continue to deteriorate, inexpensive and corrosion resistant replacement materials are needed. During the next 20 years, more than $6.05 billion is needed for US drinking water pipeline replacement. Glass fiber (GF) reinforced plastic (FRP) pipes, specifically those that are polyester-based, are one replacement option. These materials have been successfully used for more than 50 years for drinking water conveyance. While it is well-known that polyester FRPs are susceptible to water permeation (distilled, drinking, fresh, brackish, and salt), only one study was found that documented chemical release from FRP pipes. Our research did not find any studies that examined water quality impacts caused by carbon nanofiber (CNF) reinforced FRPs. Because carbon nanofiber (CNF) incorporation has the potential to improve FRP pipe fatigue resistance, CNF/FRP nanocomposites will likely be considered for future potable water contact applications. As a result, the impact of CNF on FRP leaching potential is needed. SEE ATTACHED ABSTRACT