Acoustic emission study of the TDCB test of microcapsules filled self-healing polymer |
| |
| Institution: | 1. Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, H-1111 Budapest, Hungary;2. MTA–BME Research Group for Composite Science and Technology, Műegyetem rkp. 3, H-1111 Budapest, Hungary;3. Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, GD HPPC Lab, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, 510275 Guangzhou, PR China;4. Guangdong Provincial Public Laboratory of Analysis and Testing Technology, China National Analytical Center, 510070 Guangzhou, PR China;1. School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China;2. Engineering Research Centre of Pesticide of Heilongjiang University, Heilongjiang University, Harbin 150080, China;1. Department of Microtechnology and Nanoscience, Chalmers University of Technology, 412 96 Gothenburg, Sweden;2. Volvo Technology AB, CTP, 412 58 Gothenburg, Sweden;1. Laboratory of Materials Science and Environment, Faculty of Sfax, BP 1171, 3000 Sfax, Tunisia;2. Faculty of Physics, Adam Mickiewicz University, 61-614 Poznan Umultowska 85, Poland;1. LabMat-UBB, Department of Civil and Environmental Engineering, University of Bío-Bío, Concepción, Chile;2. Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Viña del Mar, Chile;3. Departamento de Ingeniería en Maderas, Universidad del Bío-Bío, Concepción, Chile;1. Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak 26300, Kuantan, Pahang, Malaysia;2. Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia;3. Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor Darul Ehsan, Malaysia;4. Xiamen University Malaysia Campus, Jalan Sunsuria, Bandar Sunsuria, 43900 Sepang, Selangor, Malaysia;5. Deparment of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia;6. Department of Chemistry, University of Malaya, Kuala Lumpur 50603, Malaysia |
| |
| Abstract: | The failure process of self-healing microcapsule filled epoxy composites was investigated with Acoustic Emission (AE) measurement during tapered double cantilever beam (TDCB) tests. Unfilled, epoxy microcapsule filled and self-healing microcapsule (dual-microcapsules consisting of epoxy capsules and trifluoromethanesulfonic acid (TfOH) capsules) filled epoxy matrix specimens were compared. It was found that, with acoustic emission measurements, reliable data can be retrieved about the nature and progress of crack propagation and failure. Comparing the unfilled and the microcapsule filled specimens, considerably more AE hits were detected in the latter case due to the cracking of capsules and capsule-matrix debonding, which was confirmed by scanning electron microscopy investigations. Also, key differences were observed in the shape of the sum of AE hits curves and amplitude ranges of detected AE hits. Uniform distribution of the healing agent was demonstrated by energy-dispersive X-ray spectroscopy. |
| |
| Keywords: | Self-healing Acoustic emission Fracture analysis Microcapsules |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
