In a groundbreaking study published in ‘Applied Surface Science Advances,’ researchers have unveiled a versatile and flexible heater that could revolutionize the realm of fabric-based devices, particularly in construction and other industries reliant on wearable technology. The study, led by Su Bin Choi from the Department of Smart Fab. Technology at Sungkyunkwan University, highlights the innovative integration of materials that not only enhance functionality but also extend the longevity of these devices.
The heater is constructed through a meticulous layering process involving polycaprolactone (PCL) fibers, MXene, silver nanowires (AgNW), and a unique Aerosil/polydimethylsiloxane (AP) coating. This combination results in a product that is not only self-healing and water-repellent but also exceptionally flexible and biocompatible. “Our research demonstrates that by combining these materials, we can achieve a heater that maintains its performance even under extreme conditions,” Choi noted.
One of the standout features of this heater is its self-healing capability, which operates effectively at low temperatures. The PCL fibers, known for their biocompatibility, can recover from damage when subjected to mild thermal conditions. The MXene layer plays a crucial role in this process by providing thermal stability and efficient heat dissipation, which is essential for maintaining performance during self-repair.
Moreover, the use of silver nanowires significantly boosts electrical conductivity, facilitating efficient Joule heating. This is particularly important in construction settings where wearable technology can be employed for temperature regulation, potentially enhancing worker comfort and safety in varying climates. The AP layer, introduced for the first time in wearable fibrous devices, offers superior water-repellent properties, forming a hydrophobic barrier that protects the heater from moisture and corrosive environments.
The durability of the heater is remarkable, withstanding 50,000 bending cycles at a radius of curvature of 500 μm, 100 hours of washing, and repeated cutting and healing without losing its electrical and thermal properties. This resilience suggests that such technology could be seamlessly integrated into construction gear, ensuring that workers remain warm and comfortable while also enhancing the longevity of the equipment.
Choi emphasized the commercial implications of this research: “By integrating self-healing and water-repellent technologies into wearable devices, we can create solutions that not only enhance user experience but also reduce the need for frequent replacements, ultimately saving costs in various industries.”
As the construction sector increasingly adopts smart fabrics and flexible devices, the potential for these innovative heaters to improve safety and efficiency is significant. The research opens up avenues for further developments in smart clothing and wearable tech, potentially leading to a new standard in protective gear.
For more insights into this transformative research, visit Sungkyunkwan University, where this pioneering work is taking shape.
