Publication

Abstract :

This study introduces an innovative approach to composite development utilizing nitrogen plasma-treated para-aramid fabrics with linear low-density polyethylene (LLDPE) for next-generation transportation applications. Vacuum-based plasma modification applied at 0.85 kV for 15 minutes significantly enhanced interfacial properties as demonstrated by water contact angle reduction from 112° to 65°. The engineered composites, comprising five layers of para-aramid fabric alternating with twelve layers of LLDPE film, were manufactured using compression moulding at 150°C and 22 bar. Comprehensive mechanical testing revealed remarkable performance improvements: 35% higher tensile strength, greater interlaminar shear strength, and 47% enhanced impact energy absorption compared to untreated systems. Microscopy analysis confirmed improved fibre-matrix interaction with reduced fibre pull-out. The research establishes a transformative methodology for developing lightweight, impact-resistant structural materials specifically engineered for transportation applications requiring exceptional mechanical resilience and energy absorption capabilities. The innovative process notably improves interfacial adhesion, resulting in dramatic enhancements in mechanical properties, energy absorption, and crash resistance. Reduced contact angles indicate enhanced wettability and bonding, which, alongside improved tensile and shear strengths, make the composite an ideal candidate for high-speed transportation applications—especially in train structures and aircraft fuselages. Experimental results confirm that the composite can safely manage high dynamic loads while maintaining a lightweight profile, promising a significant advancement in structural safety and efficiency.