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Liquidlike, Low‐Friction Polymer Brushes for Microfibre Release Prevention from Textiles
Summary
Researchers developed a polymer brush coating strategy that practically eliminates microfiber release from synthetic textiles during washing. The study demonstrates that applying liquid-like, low-friction coatings to fibers significantly reduces the mechanical abrasion that causes millions of microplastic fibers to shed into wastewater.
Abstract During synthetic textile washing, rubbing between fibres or against the washing machine, exacerbated by the elevated temperature, initiates the release of millions of microplastic fibres into the environment. A general tribological strategy is reported that practically eliminates the release of microplastic fibres from laundered apparel. The two‐layer fabric finishes combine low‐friction, liquidlike polymer brushes with “molecular primers”, that is, molecules that durably bond the low‐friction layers to the surface of the polyester or nylon fabrics. It is shown that when the coefficient of friction is below a threshold of 0.25, microplastic fibre release is substantially reduced, by up to 96%. The fabric finishes can be water‐wicking or water‐repellent, and their comfort properties are retained after coating, indicating a tunable and practical strategy toward a sustainable textile industry and plastic‐free oceans and marine foodstuffs.
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