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Environmental Aging Effects on the Thermal Oxidative Degradation and Mechanical Failure of HDPE.

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Title: Environmental Aging Effects on the Thermal Oxidative Degradation and Mechanical Failure of HDPE.
Authors: Ni, Qingting1,2 (AUTHOR) nqt@jsut.edu.cn, Yu, Fan1 (AUTHOR), Chen, JingYi1 (AUTHOR), Xu, LiPing1 (AUTHOR), Liu, ZhuanMing1 (AUTHOR), Liu, Dan1 (AUTHOR), Jia, Hailang1,3 (AUTHOR)
Source: Journal of Macromolecular Science: Physics. 2026, Vol. 65 Issue 5, p707-721. 15p.
Subjects: High density polyethylene, Polymer degradation, Thermogravimetry, Deterioration of materials, Scanning electron microscopy, Mechanical failures, Fourier transform infrared spectroscopy, Rheology
Abstract: High-density polyethylene (HDPE) protective nets, manufactured by a construction materials company, experienced failure after just 6 months of use. In our study, HDPE pellets were processed using an extruder, compression molding machine, and cutting knife to prepare dumbbell-shaped specimens in accordance with the ISO 37-2017 standard. The specimens without any degradation treatment were named as HDPE-0d, while those subjected to 40 days of thermal oxidation aging were named as HDPE-40d. A range of analytical tools, including a universal testing machine, thermogravimetric analyzer (TGA), plate rheometer (MCR), Fourier-transform infrared spectrometer (FTIR), and scanning electron microscope (SEM), were employed to evaluate the mechanical properties, thermal stability, rheological behavior, chemical structure, and microstructure of the HDPE protective nets. The results indicated that prolonged exposure to thermal oxidation and excessive shear stress at the installation points were the principal factors contributing to the degradation of the HDPE nets. Based on these findings, practical recommendations are proposed to mitigate similar failures in the future, alongside potential enhancements in the material's stability and anti-aging properties. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Macromolecular Science: Physics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Environmental Aging Effects on the Thermal Oxidative Degradation and Mechanical Failure of HDPE.
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  Data: <searchLink fieldCode="AR" term="%22Ni%2C+Qingting%22">Ni, Qingting</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> nqt@jsut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Fan%22">Yu, Fan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+JingYi%22">Chen, JingYi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+LiPing%22">Xu, LiPing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+ZhuanMing%22">Liu, ZhuanMing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Dan%22">Liu, Dan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jia%2C+Hailang%22">Jia, Hailang</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Macromolecular+Science%3A+Physics%22">Journal of Macromolecular Science: Physics</searchLink>. 2026, Vol. 65 Issue 5, p707-721. 15p.
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  Data: <searchLink fieldCode="DE" term="%22High+density+polyethylene%22">High density polyethylene</searchLink><br /><searchLink fieldCode="DE" term="%22Polymer+degradation%22">Polymer degradation</searchLink><br /><searchLink fieldCode="DE" term="%22Thermogravimetry%22">Thermogravimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Deterioration+of+materials%22">Deterioration of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+failures%22">Mechanical failures</searchLink><br /><searchLink fieldCode="DE" term="%22Fourier+transform+infrared+spectroscopy%22">Fourier transform infrared spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Rheology%22">Rheology</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: High-density polyethylene (HDPE) protective nets, manufactured by a construction materials company, experienced failure after just 6 months of use. In our study, HDPE pellets were processed using an extruder, compression molding machine, and cutting knife to prepare dumbbell-shaped specimens in accordance with the ISO 37-2017 standard. The specimens without any degradation treatment were named as HDPE-0d, while those subjected to 40 days of thermal oxidation aging were named as HDPE-40d. A range of analytical tools, including a universal testing machine, thermogravimetric analyzer (TGA), plate rheometer (MCR), Fourier-transform infrared spectrometer (FTIR), and scanning electron microscope (SEM), were employed to evaluate the mechanical properties, thermal stability, rheological behavior, chemical structure, and microstructure of the HDPE protective nets. The results indicated that prolonged exposure to thermal oxidation and excessive shear stress at the installation points were the principal factors contributing to the degradation of the HDPE nets. Based on these findings, practical recommendations are proposed to mitigate similar failures in the future, alongside potential enhancements in the material's stability and anti-aging properties. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Macromolecular Science: Physics is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1080/00222348.2025.2460309
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 707
    Subjects:
      – SubjectFull: High density polyethylene
        Type: general
      – SubjectFull: Polymer degradation
        Type: general
      – SubjectFull: Thermogravimetry
        Type: general
      – SubjectFull: Deterioration of materials
        Type: general
      – SubjectFull: Scanning electron microscopy
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      – SubjectFull: Mechanical failures
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      – SubjectFull: Fourier transform infrared spectroscopy
        Type: general
      – SubjectFull: Rheology
        Type: general
    Titles:
      – TitleFull: Environmental Aging Effects on the Thermal Oxidative Degradation and Mechanical Failure of HDPE.
        Type: main
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          Name:
            NameFull: Ni, Qingting
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            NameFull: Yu, Fan
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            NameFull: Chen, JingYi
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            – D: 01
              M: 05
              Text: 2026
              Type: published
              Y: 2026
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              Value: 65
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            – TitleFull: Journal of Macromolecular Science: Physics
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