| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Thermally Reversible Polymer Networks for Scratch-Resistance and Scratch-Healing Automotive Clear-Coat |
| 초록 |
This study investigated the applicability of reversible Diels-Alder (DA)/retro-DA based scratch-healing system to automotive clear-coats. The furan-maleimide adduct diisocyanate-based crosslinking agent was synthesized, and systematically compared with commercially available crosslinking agent (DA-CL and C-CL). Thermally reversible crosslinking and de-crosslinking structures at DA and retro-DA temperatures were demonstrated using in-situ oscillatory rheology measurements. Simultaneously, it was monitored using an FT-IR connected to the rheometer. Furthermore, the scratch-resistance and self-healing ability were quantitatively analyzed using a nano-scratch tester equipped with optical microscopy and AFM. As a result, the DA-CL polymer network exhibited superior scratch-healing performance as well as scratch-resistance to the C-CL. This indicates that the DA-functioned self-healable polymer network had potential to be repeatable scratch-healing for automotive clear-coat system. |
| 저자 |
성수진, 이태희, 김소영, 김기영, 박영일, 노승만, 김진철
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| 소속 |
한국화학(연) |
| 키워드 |
Self-healing polymer; Diels-Alder reaction; thermally reversible crosslinking; automotive clear-coat; in-situ oscillatory rheology
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| E-Mail |
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