Research on hygrothermal aging behavior of polymer matrix composites

Renhang Zhang; Kaitai Wang; Lin Sun

doi:10.1117/12.3007247

25 October 2023 Research on hygrothermal aging behavior of polymer matrix composites

Renhang Zhang, Kaitai Wang, Lin Sun

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128010I (2023) https://doi.org/10.1117/12.3007247
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

The moisture absorption behaviors of one-way fiber-up T300/ QY8911 composite were studied in the hygrothermal environment. The morphology of interface between carbon fiber and resin in the absorption processes was observed with scanning electron microscope. The change of glass transition temperature (Tg) with aging time was studied by dynamic mechanics analysis. The variation of tensile and bending properties with aging time was studied by mechanical testing machine. The results show that the diffusivity increases with the high temperature and humidity. With aging test the interface between carbon fiber and resin decreases, Chemical structure had almost no change. The performance of the tensile material related to fiber decreases the slowest and does not conform to the exponential decay law, while the performance closely related to the matrix changes quickly and complies with the exponential degradation law. The generalized Arrhenius equation can be used to predict the life under the condition of wet and thermal dual stress coupling.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Renhang Zhang, Kaitai Wang, and Lin Sun "Research on hygrothermal aging behavior of polymer matrix composites", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128010I (25 October 2023); https://doi.org/10.1117/12.3007247

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