Effects of Aggressive Chemical Environments on Mechanical Behavior of Polyethylene Piping Material

Rehab-Bekkouche, Souheila; Kiass, N.; Chaoui, Kamel

doi:10.1007/978-90-481-2669-9_6

Cited by 1 publication

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermoplastic materials such as polyethylene and polypropylene are widely used in various industries. The degradation of thermoplastic materials by different solvents have been reported recently, such as toluene/ methanol mixture [33], a water solution of sulfuric acid and crude oil [34], isooctane/toluene mixture [35], cycloalkanes and aromatic hydrocarbon [36], diesel and biodiesel fuel [37]. According to Refs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assessment of aging of anaerobic digester paddle-mixer material: experimental studies and long-term numerical simulation

Psarras

Zaragkas

Pegkos

et al. 2023

Bioprocess Biosyst Eng

View full text Add to dashboard Cite

In this study, experimental tests and numerical simulations (Abaqus) were performed to examine the durability of four impeller materials [steel, polyethylene, polypropylene and glass fiber reinforced polymer (GFRP)] in an anaerobic digester environment. Specimens of these materials were prepared and immersed in a bath containing anaerobic digester liquor while operated at 40 °C for a period of 8 months. Periodically (2, 4, 6 and 8 months) sample specimens were removed from the bath and the tensile strength and elastic modulus were determined. As expected, thermoplastic materials and especially GFRP exceeded higher absorption of moisture than steel, although aging effect on steel was more pronounced due to corrosion, as evidenced by SEM imaging. The results demonstrate that polyethylene was not acceptable as construction material for anaerobic digester paddle mixer. On the contrary steel, GFRP and PP remained highly unaffected with a negligible increase of the maximum stress, 1.6%, 0.9% and 3.0%, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

“…According to Refs. [33][34][35][36][37], the PE swelling capacity depends on the PE specimen preparation. Mobility of PE macromolecules as a function of temperature was also reported [35,37].…”

Section: Introductionmentioning

confidence: 99%