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Titolo:
COMPARISON OF FIBERGLASS AND OTHER POLYMERIC WELL CASINGS .1. SUSCEPTIBILITY TO DEGRADATION BY CHEMICALS
Autore:
RANNEY TA; PARKER LV;
Indirizzi:
SCI & TECHNOL CORP,POB 127 HANOVER NH 03755
Titolo Testata:
Ground water monitoring & remediation
fascicolo: 1, volume: 17, anno: 1997,
pagine: 97 - 103
SICI:
1069-3629(1997)17:1<97:COFAOP>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
PVC;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
T.A. Ranney e L.V. Parker, "COMPARISON OF FIBERGLASS AND OTHER POLYMERIC WELL CASINGS .1. SUSCEPTIBILITY TO DEGRADATION BY CHEMICALS", Ground water monitoring & remediation, 17(1), 1997, pp. 97-103

Abstract

Previous research has shown that the most commonly used well casing materials-stainless steel, polyvinyl chloride (PVC), and polytetrafluoroethylene (PTFE)-are not suited for all monitoring environments and applications. This study is part of a series of experiments that were conducted to determine the suitability of four other polymeric well casing materials-acrylonitrile butadiene styrene (ABS), fluorinated ethylene propylene (FEP), fiberglass-reinforced epoxy (FRE), and fiberglass-reinforced plastic (FRP)-for use in ground water monitoring wells. In these studies, these four materials were compared with two other commonly used polymeric well casings, PVC and PTFE. Part I of these studiesexamines the resistance of these materials to degradation by chemicals. Future reports will consider sorption and leaching of organic and metal, contaminants.In this study, the six materials were exposed to 28neat organic compounds (including one acid) and to extremely acidic and alkaline aqueous solutions for up to 112 days. This was done to simulate the-most aggressive environments to which monitoring well casings may be exposed. The casings were observed for changes in, weight andsigns of physical degradation (swelling, softening, deterioration, ordissolution). The two fluorinated polymers (FEP and PTFE) were not degraded by any of the test chemicals. Among the nonfluorinated productstested, FRE was the most inert. Three organic chemicals caused the glass fibers to separate, and two organic solvents caused weight gains exceeding 10 percent. ABS was the-most readily degraded material tested. By the end of the study, only the acid and alkaline solutions had little effect on ABS. FRP was more severely degraded by the,organic chemicals than FRE but was less affected than PVC. FRP and FRE lost weightwhen exposed to the highly acidic conditions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 02:25:11