Journal article
Effect of high temperatures on the physical and mechanical properties of HDPE geomembranes in air
Geosynthetics international, v 22(3), pp 207-224
01 Jan 2015
Abstract
The effect of elevated temperatures, particularly between 95 and 115 degrees C as encountered in some geoenvironmental applications, on the physical and mechanical properties of high-density polyethylene (HDPE) geomembranes (GMBs) is examined. Four commercially available HDPE GMBs were incubated in air at temperatures >= 85 degrees C. Investigation of the thermograms by differential scanning calorimetry showed a significant change in the polymer morphology with an increase of the incubation temperature and duration, especially at 105 and 115 degrees C. The morphological changes due to annealing involve thickening of the lamella crystals of the polymer and a change in the tie molecules joining the lamella crystals. The effect of annealing was most evident in the stress crack resistance of the GMB incubated at 105 and 115 degrees C prior to polymer degradation. In particular, an increase in stress crack resistance due to annealing could mask the effects of polymer degradation at temperatures above 95 degrees C. Changes in morphology did not affect melt index whose changes were largely attributed to polymer degradation.
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Details
- Title
- Effect of high temperatures on the physical and mechanical properties of HDPE geomembranes in air
- Creators
- F. B. Abdelaal - Queens Univ, Queens RMC, GeoEngn Ctr, Kingston, ON K7L 3N6, CanadaR. K. Rowe - Queens Univ, Queens RMC, GeoEngn Ctr, Geotech & Geoenvironm Engn, Kingston, ON K7L 3N6, CanadaY. G. Hsuan - Drexel UniversityR. Awad - Queens Univ, Queens RMC, GeoEngn Ctr, Kingston, ON K7L 3N6, Canada
- Publication Details
- Geosynthetics international, v 22(3), pp 207-224
- Publisher
- Ice Publishing
- Number of pages
- 18
- Grant note
- Canada Foundation for Innovation; CGIAR 22 / Ontario Ministry of the Environment (Best-In-Science Project) 1007 / Natural Sciences and Engineering Research Council of Canada; Natural Sciences and Engineering Research Council of Canada (NSERC); CGIAR Killam Trust in the form of a Killam Fellowship 218983 / Ontario Research Fund Award
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000357854400001
- Scopus ID
- 2-s2.0-84938570992
- Other Identifier
- 991019167348104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Geological
- Geosciences, Multidisciplinary
- Materials Science, Multidisciplinary