화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 기능성 고분자
제목 Improvement of flexibility and scratch resistance of hard coating materials using the necklace-like supramolecular cross-linkers.
초록 An organic-inorganic hybrid coating material including an alkoxysilyl-functionalized polyrotaxane cross-linker(PRX_Si1) enables the coating material to display foldable flexibility and anti-scratch property. The PRX_Si1 has a molecular necklace-like structure that can form organic-inorganic cross-linking points and provide large molecular sliding motion. It was assumed that the flexibility and scratch-resistance could be simultaneously increased due to the hybrid cross-linking points and dynamic molecular movements. To verify 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 nanoclusters, and the strain at breaking point was three times higher than that of a commercial hard coating material.
저자 서지애, 김빛가람, 문성욱, 최병호, 서지훈
소속 고려대
키워드 hybrid; siloxane; polyrotaxane; cross-linker; anti-scratch; coating material
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