Curing effects of single-wall carbon nanotube reinforcement on mechanical properties of filled epoxy adhesives |
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| Authors: | Alan L Gerson Hugh A Bruck Alan R Hopkins Kenneth N Segal |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, United States;2. Materials Science Department, Space Materials Laboratory, The Aerospace Corporation, P.O. Box 92957-M2/242, Los Angeles, CA 90009, United States;3. NASA-Goddard Space Flight Center, Code 543/Mechanical Engineering Branch, Greenbelt, MD 20770, United States;1. College of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, China;2. College of Engineering and Technology, American University of the Middle East, Kuwait;3. School of Engineering, University of South Australia, SA 5095, Australia;4. QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia;1. Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, China;2. Materials Science Centre, School of Materials, The University of Manchester, Manchester M13 9PL, UK;3. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;1. School of Mechanical and Power Engineering, Shanghai Jiaotong University, No. 800 Dongchuan Road, Shanghai 200240, China;2. School of Petroleum Engineering, Changzhou University, Changzhou, Jiangsu 213164, China;3. Beijing Fangda Research Institute, China |
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| Abstract: | Enhancing epoxy adhesives using nanoscale fillers requires understanding processing-structure–property relationships as a function of nanoscale filler loading. In particular, the effects of adding nanoscale reinforcement to filled epoxies, such as those qualified for space applications, have yet to be characterized. In this effort, the addition of single-walled carbon nanotubes (SWNTs) to Hysol 9309.2 epoxy was investigated using a multi-scale mechanical characterization approach. Effects of SWNTs on the kinetics of epoxy curing were characterized and modeled using macromechanical dynamic mechanical analysis (DMA). Adhesion between SWNTs and microfiber reinforcement was identified with scanning electron microscope (SEM), and effects of SWNTs on mechanical properties of the filled epoxy were quantified using micromechanical tensile testing. Effects of SWNT reinforcement on mechanical behavior of the epoxy matrix were also characterized using nanomechanical characterization. This multi-scale mechanical characterization enabled the effects of SWNTs to be isolated from the epoxy and filler phases inherent in the adhesive. |
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