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- Title
Highly Self-Healable Polymeric Coating Materials Based on Charge Transfer Complex Interactions with Outstanding Weatherability.
- Authors
Hong, Pyong Hwa; Moon, Gyeongmin; Kim, Jinsil; Choi, Kiwon; Ko, Min Jae; Yoon, Ho Gyu; Hong, Sung Woo
- Abstract
In this study, we prepare highly self-healable polymeric coating materials using charge transfer complex (CTC) interactions. The resulting coating materials demonstrate outstanding thermal stability (1 wt% loss thermal decomposition temperature at 420 °C), rapid self-healing kinetics (in 5 min), and high self-healing efficiency (over 99%), which is facilitated by CTC-induced multiple interactions between the polymeric chains. In addition, these materials exhibit excellent optical properties, including transmittance over 91% and yellow index (YI) below 2, and show enhanced weatherability with a ΔYI value below 0.5 after exposure to UV light for 72 h. Furthermore, the self-healable coating materials developed in this study show outstanding mechanical properties by overcoming the limitations of conventional self-healing materials.
- Subjects
SELF-healing materials; ELECTRON donor-acceptor complexes; SURFACE coatings; THERMAL stability
- Publication
Polymers (20734360), 2023, Vol 15, Issue 23, p4544
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym15234544