Researchers at the Hong Kong Polytechnic University (PolyU) have developed a groundbreaking technology for workers in extreme heat: a self-cooling, breathable, and thermally insulated soft robotic garment. Here are the details!
Self-Cooling Clothing is No Longer a Fantasy
Led by Dr. Dahua Shou, the team has created an innovative garment aimed at addressing health issues caused by extreme heat. Traditional protective clothing often provides inadequate protection or excessive heating under extreme or moderate weather conditions. This new technology aims to offer optimal thermal comfort in all conditions.
Inspired by biomimicry from nature, particularly how pigeons regulate heat loss through their feathers, the researchers have designed the soft robotic fabric with features similar to an exoskeleton. It includes soft actuators containing a non-toxic, non-flammable liquid with a low boiling point. As the ambient temperature rises, the liquid turns into gas, causing the actuators to expand and the fabric to thicken. This increases the air gap and effectively doubles the thermal resistance.
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Tests have shown that even when the external surface reaches 120°C, the internal surface temperature of the protective clothing can remain at least 10°C lower compared to traditional heat-resistant garments. Additionally, the porous knit structure enhances moisture permeability, improving user comfort.
This lightweight and soft robotic garment, which does not require thermoelectric chips or circulation fluid cooling systems, effectively regulates temperature without any energy consumption.
Dr. Shou notes that this innovative technology could be used across various fields, from activewear and winter jackets to healthcare and construction. The team also aims to use this technology to develop inflatable, breathable jackets and warming clothing.
What do you think about this garment? Do you believe such clothing could become central to our lives in the future? Feel free to share your thoughts with us in the comments and on our social media accounts.
