教師資料查詢 | 類別: 期刊論文 | 教師: 董崇民 Don, Trong-ming (瀏覽個人網頁)

標題:Morphology and mechanical properties of dual-curable epoxyacrylate hybrid composites
學年103
學期2
出版(發表)日期2015/04/15
作品名稱Morphology and mechanical properties of dual-curable epoxyacrylate hybrid composites
作品名稱(其他語言)
著者Yu-Chieh Su; Trong-Ming Don
單位
出版者
著錄名稱、卷期、頁數Journal of Applied Polymer Science 132(15), 41820
摘要A dual-curable epoxyacrylate (EA) oligomer with one epoxide group and one vinyl group at each end was synthesized for the application as adhesive sealant in the liquid crystal display panels. However, after UV and thermal cure, the EA resin was brittle with a poor resistance to crack initiation and propagation. Liquid rubbers with different functional end groups were thus tried as toughening agents for the EA resin. Among all the rubber-toughened EAs, the EA-V5A5 added with vinyl-terminated and amino-terminated butadiene-acrylonitrile copolymers (VTBN and ATBN) each at 5 phr had the highest fracture toughness, tensile strength, and elongation at break but a lower initial modulus. To raise the modulus, submicron-sized silica particles (∼170 nm) with surface vinyl functional groups were further added to the EA-V5A5 to prepare the hybrid composites. Because of interfacial chemical bonding provided by the surface vinyl functional groups, both modulus and fracture toughness were increased by adding silica particles, without any appreciable decrease in extensibility. For the hybrid composite at 20 phr silica particles, the initial modulus, fracture toughness, and fracture energy were raised by 10.3, 100, and 267%, respectively, when compared to the neat epoxyacrylate. Owing to their strong interfacial bonding, the increase of fracture toughness was mainly due to the crack deflection and bifurcation on silica particles, in addition to the rubber particle bridging and tearing as evidenced by SEM pictures on the fracture surface.
關鍵字mechanical properties;composites;adhesives;elastomers
語言英文(美國)
ISSN1097-4628
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Trong-Ming Don
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!