Interleaving CFRP and GFRP with a Thermoplastic Ionomer: The Effect on Bending Properties
Source abstract
Abstract
Carbon and glass fiber reinforced polymers are employed in a variety of structural applications that require high stiffness and lightweight composites. However, poor through thickness properties make these laminates susceptible to delamination, usually caused by low energy impact. Interleaving these composites with a thermoplastic material has the potential to reduce the risk of delamination. Here we prepared preforms of dry textiles with a thin ionomeric layer melted on the mid plane, followed by resin infusion. Interleaved GFRP had its flexural toughness improved in 95.5% and its charpy impact strength increased in 23%. On the other hand, CFRP presented a reduction in 10% on flexural toughness and no improving in impact strength due to poor adhesion between CF and the ionomer, as confirmed by SEM images. Nonetheless, both interleaved systems showed an increase in damping observed by a reduction of 30% on Tanδ peak in DMA tests.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer composites and self-healing · Mechanical Behavior of Composites · Advanced Sensor and Energy Harvesting Materials
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References (37)
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