화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO))
권호 45권 1호
발표분야 고분자가공/복합재료
제목 Synthesis of Catechol-Functionalized Silsesquioxane  for Enhancing Cohesive and Adhesive Forces of Epoxy Adhesive
초록 Epoxy resins have been used in the field of adhesive and have outstanding chemical, thermal, mechanical properties. However, these performances are greatly affected by the absorbed moisture which results in volume expansion, cracks, decrease of Tg and adhesion. In this study, dopamine methacrylamide (DMA) was selected to enhance both cohesive and adhesive force of epoxy adhesive. DMA has a catechol moiety, which includes in marine mussel foot proteins and could adhere to various kinds of surfaces. We synthesized catechol-functionalized polyhedral oligomeric silsesquioxane (POSS) and ladder-like polysilsesquioxane (LPS) via simple sol-gel process, and applied them to prepare epoxy nanocomposites of DGEBA and DDS system using hydrogen bonding and π-π stacking interaction. Finally, we analyzed thermal properties and mechanical properties including tensile, flexure, impact and lap shear test. This research was supported by Korea National University of Transportation in 2020.
저자 노지영, 임정혁, 김경민
소속 한국교통대
키워드 Epoxy; Epoxy adhesive; Nanocomposites; Silsesquioxane; Hybrid materials
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