Property retention in glass fiber reinforced PP and PETG after accelerated oxidative aging
Asima ZAHOOR, Abdel Hamid I. MOURAD, Mohammad ALKHEDHER, Shubhra SHITOLE
Abstract. Polymer composites are extensively replacing conventional materials in demanding sectors like infrastructure, marine, and aerospace, however being the novice class of materials, their long-term durability under varied service conditions is not documented thoroughly. To address this gap, this study evaluates and compares the performance after accelerated aging, of two fiber reinforced polymers (FRP) namely: 70% glass fiber by weight reinforced Polypropylene (GF-PP) and 58% glass fiber by weight reinforced Polytrimethylene Ethylene Glycol (GF-PETG). The findings indicate that photo-oxidation was the primary degradation mode for both materials, predominantly affecting their surface. Both composites exhibited significant molecular weight reduction, which noticeably impacted their thermal properties. Furthermore, the presence of water negatively affected the bulk mechanical properties of the PETG-based composites, while the PP composites exhibited no discernible changes.
Keywords
Accelerated Weathering, Thermoplastics, Thermo- Mechanical Properties, Physical Properties
Published online 6/20/2026, 7 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Asima ZAHOOR, Abdel Hamid I. MOURAD, Mohammad ALKHEDHER, Shubhra SHITOLE, Property retention in glass fiber reinforced PP and PETG after accelerated oxidative aging, Materials Research Proceedings, Vol. 67, pp 293-299, 2026
DOI: https://doi.org/10.21741/9781644904176-40
The article was published as article 40 of the book Climate Action and Sustainability
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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