| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO)) |
| 권호 | 25권 2호 |
| 발표분야 | 포스터-고분자 |
| 제목 | AFM Study on Nanoscratch-healing Behaviour of Copolymers Bearing Hindered Urea Bonds |
| 초록 | Polyurea polymers with superb mechanical strength and good self-recoverability characteristics are of key significance for daily life applications. These features enable the crosslinked polyurea to be used in coatings, adhesives and matrices for composite materials. Hindered urea bonds are formed by reaction of bulky amine and isocyanates, and HUB provides self-healing property to the cross-linked polymer due to its reversibility. The reversibility of HUB and catalyst-free features can make the polymer recyclable and low-cost polymeric materials with high-performance. To explore more advanced self-healing (SH) property, two different crosslinkers were studied via atomic force microscopy (AFM). Elastic modulus and hardness were also recorded by nanoindentation as these properties influence the SH capability of the polymer. The authors are grateful for financial support from National Research Foundation of Korea (Grant No. 20201I1A304491) |
| 저자 | Sana Ahmed, 정인우 |
| 소속 | Kyungpook National Univ. |
| 키워드 | AFM; Nano-scratch; Self-healing; Hinderd Urea Bond(HUB) |
