Highly Transparent Self-Healing Elastomers based on Localized Hydrogen Bonding with Outstanding Folding and Rolling Reliability
발표자
신혜원 (한국생산기술연구원)
연구책임자
고민재 (한양대학교)
임상혁 (고려대학교)
홍성우 (한국생산기술연구원/한국과학기술연구원)
초록
내용
Developing transparent polymers with both mechanical robustness and self-healing capability is a critical challenge for next-generation flexible displays and electronics. In this study, we report a crosslinked elastomer incorporating a sustainable isosorbide oligomer (HO) that forms strong, localized hydrogen-bonding networks. The resulting elastomer (HELI) exhibited excellent optical and mechanical properties, including 91.7% transmittance, 0.5% haze value at 550 nm, and 3H surface hardness. It also endured 100,000 folding and 10,000 rolling cycles without optical or structural degradation. Notably, HELI autonomously recovered 95 % of its tensile strength within 10 min at 80 °C, enabled by dynamic HO-mediated reversible hydrogen bonds that dissipate stress and repair damage at the molecular level. These results demonstrate a promising approach toward durable, transparent, and healable coatings for next-generation flexible displays and electronics.