Fabrics
Scientists at Aarhus University in Denmark have introduced a new technology capable of isolating elastane, the stretchy material in fabrics, from other fibers.
The breakthrough involves using a molecule called diamine to hold elastane chain links together. By heating the clothing to 225 degrees Celsius and adding a specific type of alcohol, researchers dissolve the elastane bonds, causing the materials to separate and chains to break. This process occurs in a large pressure cooker-like environment where textiles are fed in.
Steffan Kvist Kristensen from the Interdisciplinary Nanoscience Center at Aarhus University explained, “We’ve developed a method to completely remove elastane from nylon. While we’re still working on cotton because some fibers break down in the process, we believe minor adjustments can solve this issue.”
While not ready for large-scale industrial use yet, the scientists are optimistic that involvement from the chemical industry, particularly from countries like Germany, will help advance and implement this technology.
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