ACS Applied Polymer Materials· 2026Q1
Designing Durable Multifunctional Cotton Fabrics through a Bio-Based Self-Healing Polyurethane Strategy
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- Q1SCImago
- 2026year
Short summary
A bio-based self-healing polyurethane coating, PU55Ti-6, incorporating TiO2 nanoparticles, imparts durable water repellency, UV protection, and self-healing to cotton fabric, maintaining performance after damage and environmental exposure.
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Key points
- A novel PU55Ti-6 coating integrates TiO2 nanoparticles and a bio-based self-healing polyurethane onto cotton fabric.
- The coating provides excellent water repellency, self-cleaning, and oil/water separation due to its micro-nano structure and oleophilic-hydrophobic nature.
- Combined scattering and absorption by TiO2 and eugenol-derived polyurethane offer strong UV protection.
- Dynamic disulfide bonds and phenol-carbamate linkages in the polyurethane enable self-healing of mechanical damage and restoration of water repellency.
- The treated fabric demonstrates superior mechanical strength, thermal stability, and UV protection compared to untreated cotton, even after aging and exposure.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract The development of durable multifunctional cotton fabric with integrated water repellency, UV protection, and self-healing capability remains challenging due to insufficient environmental stability. Herein, a robust cotton fabric PU55Ti-6 was constructed through the synergistic incorporation of TiO2 nanoparticles and a bio-based self-healing polyurethane coating (PU-EuSi5–HEDS5). The resulting micro-nano structure and oleophilic–hydrophobic components enable excellent water repellency, self-cleaning behavior, and efficient oil/water separation. TiO2 nanoparticles together with eugenol-derived polyurethane provide strong UV protection via combined scattering and absorption effects. Dynamic disulfide bonds and phenol-carbamate within the polyurethane network enhance coating durability and impart self-healing capability, enabling recovery of water repellency of PU55Ti-6 after mechanical damage such as abrasion, peeling, and vigorous washing. The PU55Ti-6 also exhibits improved mechanical strength, thermal stability and UV protective capacity relative to pristine cotton even after thermal aging, outdoor exposure, and UV irradiation, demonstrating excellent environmental robustness. This work presents a simple and scalable strategy for designing durable multifunctional cotton fabric for long-term applications.
The authors' abstract, as published at the source. ACS Applied Polymer Materials, 2026 · DOI ↗
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Field: Surfaces, Coatings and Films
Surfaces, Coatings and FilmsMaterials Science