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March 12, 2026Structural durability & health monitoringOpen Access

Aging and Degradation Patterns and Life Prediction of Polyethylene Pipes Under Thermal Oxidation and Photo-Oxidation Effects

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Authors

YYYaoying YueYWYang WangNLNan Lin

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Overview

Aging and degradation in polyethylene pipes are assessed, suggesting an improved service life prediction method.

Key Points

  • The study aims to evaluate the degradation and aging processes of polyethylene pipes under thermal and photo-oxidation effects and to develop a predictive model for their service life.
  • Accelerated aging method simulating combined thermal and photo-oxidative aging.
  • Fourier Transform Infrared Spectroscopy (FTIR) for testing carbonyl index.
  • Oxidation Induction Time (OIT) and Melt Mass Flow Rate (MFR) tests for property characterization.
  • Application of the Arrhenius equation for lifetime prediction under various temperature conditions.
  • Combined aging rate is 1.87 times higher than thermal oxidation alone.
  • Decreased MFR indicates impaired flowability due to aging.
  • A multi-factor lifetime prediction model for polyethylene pipes was established.

Cite This Study

Yue et al. (2026) studied this question.

synapsesocial.com/papers/69b257ec96eeacc4fcec7118https://doi.org/10.32604/sdhm.2026.076697
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  1. 1Experimental Research on Thermal-Oxidative Aging Performance of Polyethylene Pipe Under Hydrostatic Pressure2024 · 5 citations
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  5. 5Photooxidation of Polyethylene: Chemical Mechanisms and Advanced Characterization Strategies2026 · 4 citations