Degradation Model for the Tensile Strength of PVC and Rubber Gasket Materials Exposed to Benzene and PCE-Saturated Aqueous Solutions

Autor:	Payam Hosseini, Sultan Alhomair, Zahra Faeli, Mohammad Pour-Ghaz, Mohammed Gabr, Detlef Knappe, Cyrus Parker
Rok vydání:	2020
Předmět:	Mechanical Engineering 0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences 01 natural sciences 020801 environmental engineering 0105 earth and related environmental sciences Civil and Structural Engineering
Zdroj:	Transportation Research Record: Journal of the Transportation Research Board. 2674:274-283
ISSN:	2169-4052 0361-1981
Popis:	In this paper, a tensile strength degradation model is developed for polyvinyl chloride (PVC) pipe and three rubber gasket materials commonly used in stormwater drains and wet utilities; the degradation model considers exposure to a single contaminant at its saturation level. The contaminant considered included benzene and tetrachloroethylene (PCE) because of their prevalence. The materials considered are unplasticized Polyvinyl chloride (u-PVC) utilized as the pipe material, and three types of rubber gaskets: Polychloroprene (Neoprene-CR), Acrylonitrile (nitrile) butadiene rubber (Buna-N), and fluoroelastomer rubber (FKM—Grade A VitonTM). First, the degradation rates of these materials are experimentally quantified using accelerated testing; then using the experimental results and Williams–Landel–Ferry (WLF) method a degradation model is developed. Finally, a simplified method is introduced to relate the tensile strength degradation of PVC to the penetration rate of the contaminants.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a92f7b5de43969fca5ffb69fbc302f75 https://doi.org/10.1177/0361198120906126 Zobrazit plný text záznamu