Preparation and properties of dual-curable epoxyacrylate composites filled with different functionalized silica spheres
學年 101
學期 2
發表日期 2013-07-15
作品名稱 Preparation and properties of dual-curable epoxyacrylate composites filled with different functionalized silica spheres
作品名稱（其他語言）
著者 Su, Yu-Chieh; Don, Trong-Ming
作品所屬單位 淡江大學化學工程與材料工程學系
出版者
會議名稱 The 29th international conference of the Polymer Processing Society (PPS-29)
會議地點 Nuremberg, Germany
摘要 In this study, uniform-sized silica spheres were first synthesized by sol-gel reaction under a basic environment and their surfaces were modified to possess different functional groups including vinyl, epoxide and amino groups by reaction with 3-methacryloxypropyl trimethoxy silane (MPTMS), vinyl triethoxysilane (VTEOS), 3-glycidoxy propyltrimethoxy silane (GPTMS) and 3-Aminopropyl trimethoxysilane (APTMS). The functionalized silica spheres were characterized by FTIR, 29Si and 13C solid-NMR and SEM. These silica spheres with size ranging from 150~250 nm were then added to the pre-synthesized difunctional epoxyacrylate resin with one epoxide end group and one vinyl terminal groups. After photo- and thermal cure, mechanical properties and fracture toughness were measured to elaborate the effects of different functionalized silica spheres on the properties of epoxyacrylate-silica composites. Tensile mechanical properties including initial modulus, ultimate tensile strength and elongation at break, and also the fracture toughness of the epoxyacrylate-silica composite were all increased with increasing the amount of modified silica spheres. The increase of fracture toughness was due to the crack deflection and particle-matrix debonding as evidenced by SEM pictures on the fracture surface. Among these composites, the one filled with the MPTMS-modified silica had the best tensile mechanical properties and fracture toughness.
關鍵字 silica spheres;epoxyacrylate;fracture toughness;mechanical properties
語言 en
收錄於
會議性質 國際
校內研討會地點
研討會時間 20130715~20130719
通訊作者 Trong-Ming Don
國別 DEU
公開徵稿 Y
出版型式 電子版
出處 Proceedings of the Polymer Processing Society 29th Annual Meeting, pp.93
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