화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO))
권호 44권 1호
발표분야 대학원생 구두발표 (영어발표, 발표15분)
제목 Flexible and anti-scratch hard coating materials using the molecular necklace-like cross-linkers
초록 A flexible hard coating material displaying the anti-scratch properties and foldable flexibility was developed by the design of an organic-inorganic hybrid coating material employing an alkoxysilyl-functionalized polyrotaxane cross-linker (PRX_Si1). The PRX_Si1 has a molecular necklace-like structure that can form organic-inorganic cross-linking points and provide large molecular movements. It was postulated that the scratch resistance and flexibility could be simultaneously increased due to the hybrid cross-linking points and dynamic molecular movements. To confirm this hypothesis, the properties of the PRX_Si1-based hard coating material were analyzed by TEM, SAXS, tensile, pencil hardness, and scratch tests. The PRX_Si1-based hard coating material could form homogeneously dispersed siloxane nano clusters, and the strain at breaking point was three times higher than that of a commercial hard coating material.
저자 서지애, 문성욱, 최병호, 서지훈
소속 고려대
키워드 hybrid; siloxane; polyrotaxane; cross-linker; anti-scratch; coating material
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