In a groundbreaking development poised to revolutionize protective textiles, researchers have discovered a method to enhance the surface activity of Kevlar fabric using nanodiamonds, potentially opening new avenues for the energy sector. Aisha Rehman, a leading researcher from the School of Fashion and Textiles at RMIT University in Australia, has spearheaded this innovative study, published in the esteemed journal ‘Macromolecular Materials and Engineering’ (or ‘Giant Molecular Materials and Engineering’ in English).
The research addresses a critical challenge in the industry: the low surface reactivity of aramid fibers like Kevlar, which has historically limited their functional modifications. “We aimed to create a durable hydrophobic finish on Kevlar fabric, a material already renowned for its mechanical strength and thermal stability,” Rehman explained. The team achieved this by using polyacrylic acid (PAA) as a coupling agent to improve the adhesion of nanodiamonds to the fiber surface. Subsequent treatment with n-dodecyl tri-methoxy silane generated a robust hydrophobic finish.
The results were striking. The PAA-DND-silane system exhibited the highest water contact angle, indicating superior hydrophobicity. Even after repeated washing and abrasion cycles, the fabric retained its performance. This enhancement was attributed to nanostructured roughness, which promotes a Cassie-Baxter wetting regime. “The modification did not compromise the fabric’s flexibility, although it reduced the air permeability by 50%,” Rehman noted.
The implications for the energy sector are substantial. Protective textiles with enhanced hydrophobicity can be crucial in environments where water resistance is paramount, such as offshore oil and gas platforms, renewable energy installations, and other harsh conditions. The durability of the hydrophobic finish ensures long-term performance, reducing maintenance costs and improving safety.
This scalable strategy offers a pathway to multifunctional aramid textiles that meet the stringent demands of modern protective gear. As the energy sector continues to evolve, the need for advanced materials that can withstand extreme conditions becomes ever more critical. Rehman’s research provides a promising solution, paving the way for future developments in protective textiles and beyond.
The study, published in ‘Macromolecular Materials and Engineering,’ highlights the potential for nanodiamond modification to enhance the functionality of Kevlar fabric. This breakthrough could shape the future of protective textiles, offering durable, hydrophobic solutions that meet the demanding requirements of the energy sector and other industries. As researchers continue to explore the possibilities, the impact of this innovation is likely to be far-reaching and transformative.