Addition of compatibilized nanoclay/spandex fibers to glass fiber reinforced epoxy nanocomposites for enhanced impact strength
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초록
내용
This study successfully enhances the impact strength of epoxy-based GFRPs by incorporating silanized nano clay and compatibilized spandex fibers without sacrificing tensile properties. The composites were manufactured using vacuum-assisted resin infusion molding (VARIM). Spandex fibers, known for their high elastic recovery and stretchability, were selected due to their unique molecular structure of alternating flexible and rigid segments. The nanoclay and spandex fibers underwent various surface treatments to ensure compatibility with the epoxy matrix. The reinforcement of GFRPs with compatibilized spandex fibers, using either maleic anhydride grafting or a combination of phosphoric acid treatment followed by silanization, led to a significant increase in impact strength of 132% and 150%, respectively, compared to the reference composition. These newly developed GFRPs are ideal for applications requiring high-impact resistance for safety.