Influence of Residual Chlorine on Durability of Cross-linked Polyethylene and Polybutene Pipes used in Hot-Water Supply Systems [PEX, PB]
Tanaka, Akiyama, Komukai
# 1995 Edinburgh
This paper describes the influence of residual chlorine in potable hot water on durability of cross-linked polyethylene
and polybutene pipes. The aim of this study is to find and verify proper testing procedures and evaluation methods to
estimate service lives of plastic pipes under different concentration of residual chlorine. The durability for residual
chlorine contained in hot water at 353 K was investigated and the service life was estimated by Full Notch Creep Test
under hot water containing residual chlorine. As a result, the higher the concentration of residual chlorine was, the
shorter the time to failure was, and there was a certain relationship among the concentration of residual chlorine, time
to failure and applied stress.
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