Nitric Acid Induced Degradation of High Density and Linear Medium Density Polyethylene: Physical Property Sensing Techniques

LG Tisinger; CE Carraher

doi:10.1520/STP23496S

SYMPOSIA PAPER Published: 01 January 1990

STP23496S

Nitric Acid Induced Degradation of High Density and Linear Medium Density Polyethylene: Physical Property Sensing Techniques

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The paper addresses the way in which analytical techniques may be used to characterize changes in the microstructure of geomembranes due to aggressive chemical environments. For this work, linear medium density polyethylene geomembranes and high density polyethylene geomembranes were exposed to 70% nitric acid for 2, 6, 8, and 10 days at 50°C. Tensile properties were measured after each exposure period. Degrees of crystallinity, onset of decomposition temperature, and infrared analyses were conducted before and after 10 days' exposure to nitric acid. Both materials displayed degradation and appear to have been similarly affected by the aggressive chemical environment.

Author Information

Tisinger, LG

GeoSyntec, Inc., Boynton Beach, FL

Carraher, CE

Florida Atlantic University, Boca Raton, FL

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Details

Developed by Committee: D35

Pages: 48–56

DOI: 10.1520/STP23496S

ISBN-EB: 978-0-8031-5135-2

ISBN-13: 978-0-8031-1298-8

Nitric Acid Induced Degradation of High Density and Linear Medium Density Polyethylene: Physical Property Sensing Techniques

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