Study on Mechanics and Aging Resistance of Glass Fiber Reinforced Epoxy Resin

Abstract:

The study used KH560 coupling agent to modify chopped glass fibers for reinforcing glass fiber/epoxy resin composites. As the glass fiber mass fraction increased, tensile, bending, and impact strength initially rose and then declined. Optimal mechanical reinforcement occurred at a 10% fiber mass fraction. SEM analysis revealed a well-integrated interface between glass fibers and the resin matrix, facilitating stress transfer and crack resistance. However, excessive fiber content led to diminished mechanical properties due to poor dispersion. Short-term UV aging significantly altered the composite's color, attributed to UV-induced photooxidation, though glass fibers' chemical stability mitigated deeper oxidation. Water exposure induced resin hydrolysis over time, further reducing mechanical properties. This research provides foundational insights for developing high-performance glass fiber reinforced epoxy resins as alternatives to metal power fittings.

• Periodical: Key Engineering Materials (Volume 1013)
• Pages: 23-28
• DOI: https://doi.org/10.4028/p-OSMx3F
• Online since: May 2025
• Authors: Zhi Hua Feng*, Yi Fang Wu, Ming Ming Dai, Lei Fan, Cheng Cheng Wu, Zhi Qi Fan
• Keywords: Aging Resistance, Composite Material, Epoxy Resin, Glass Fiber, Mechanical Properties

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