Chinese Scientists Unveil a Freeze-Proof, Water-Repellent Fabric That Traps Heat

Introducing PCFA: A Breakthrough Synthetic Material

According to НВ — Техно: On June 19 at 08:00, researchers from the Chinese Academy of Sciences unveiled a new synthetic material called PCFA (Phase-Change Fibrous Aerogel). Though it feels like cotton to the touch, this innovative fabric boasts unique properties: it actively repels moisture and self-regulates temperature.

PCFA is built from hydrophobic polymer fibers embedded with microscopic capsules of a phase-change hydrocarbon. The material’s core mechanism relies on the hydrocarbon’s phase transitions. In cold conditions, the fibers absorb and store heat; once the temperature hits 26.2°C, they release it back into the environment.

During lab tests, samples measuring roughly 15 by 20 centimeters delivered impressive results:

• In humid environments, the material absorbed neither water vapor nor liquid droplets.
• At minus 25 degrees Celsius, a hand wrapped in PCFA stayed noticeably warmer than one covered in a cotton layer of equal thickness.
• After 20 wash cycles, the fabric showed no pilling or loss of loft, retaining 97% of its thermal insulation performance.

Where PCFA Could Be Used

PCFA can be shaped into various forms, from fluffy cotton-like balls to flat fabric sheets. This versatility opens up potential applications across multiple industries, especially textiles and insulation.

The development of PCFA could revolutionize not only the textile industry but also any sector where thermal insulation and water resistance are critical. By maintaining warmth while blocking moisture, this new material may become the foundation for clothing designed to keep people comfortable in diverse climates. Equally important are its durability and ability to retain performance after repeated washing, which significantly extends the lifespan of PCFA-based products.