Studying the aging phenomenon of plastic pipes presents simultaneously an economic achievement and a technical challenge for water and natural gas transportation systems. Very often, they are exposed to aggressive environmental agents such as UV rays, ambient oxygen, acids, bases and some other solvents, altering the material microstructure, its physical and chemical properties. The high density polyethylene (HDPE) material degradation and loss of performance are usually the consequence of unwanted changes in mechanical behaviors leading to lower resistance. In this study, we examine the effects of distilled water (DW) and a mixture of toluene-methanol (TM) in contact with an HDPE pipe. Morphological properties such as crystallinity and oxidation induction time (OIT) are investigated using DSC method. Tensile tests and thermal analysis show that the TM mixture is much more absorbed by the resin as compared to DW. An increase in crystallinity is observed as established from literature for other organic solutions. Finally, the study gives an idea about property variances and their evolution as a function of the pipe thickness which can be used as an estimation of the structural heterogeneity of the product.
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17 July 2019
TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY: TMREES19
10–12 April 2019
Beirut, Lebanon
Research Article|
July 17 2019
Experimental study of chemically aged HDPE pipe material in toluene-methanol mixture and distilled water
Latifa Alimi;
Latifa Alimi
a)
1
Research Center in Industrial Technologies (CRTI)
, P.O.Box 64, Cheraga, 16014 Algiers, Algeria
2
LR3MI, Mechanical Engineering Dept., Badji Mokhtar University
, P.O. Box 12, 23052 Annaba, Algeria
a)Corresponding author: [email protected]
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Kamel Chaoui;
Kamel Chaoui
2
LR3MI, Mechanical Engineering Dept., Badji Mokhtar University
, P.O. Box 12, 23052 Annaba, Algeria
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Nacira Hamlaoui;
Nacira Hamlaoui
2
LR3MI, Mechanical Engineering Dept., Badji Mokhtar University
, P.O. Box 12, 23052 Annaba, Algeria
3
LR3MI, Mechanical Engineering Dept
., May 8 th 1945 Guelma University, P.O. Box 401, 24054 Guelma, Algeria
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Khouloud Bedoud
Khouloud Bedoud
1
Research Center in Industrial Technologies (CRTI)
, P.O.Box 64, Cheraga, 16014 Algiers, Algeria
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a)Corresponding author: [email protected]
AIP Conf. Proc. 2123, 020006 (2019)
Citation
Latifa Alimi, Kamel Chaoui, Nacira Hamlaoui, Khouloud Bedoud; Experimental study of chemically aged HDPE pipe material in toluene-methanol mixture and distilled water. AIP Conf. Proc. 17 July 2019; 2123 (1): 020006. https://doi.org/10.1063/1.5116933
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