Improved mechanical properties of an epoxy glass–fiber composite reinforced with surface organomodified nanoclays |
| |
| Affiliation: | 1. Milliken Pipe Wrap, Houston, TX 77060, USA;2. Department of Chemical & Biomolecular Engineering, University of Houston, Houston, TX 77204, USA;3. Texas Center for Superconductivity, University of Houston, TX 77204, USA;4. DCD Consulting, LLC, League City, TX 77573, USA;1. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR China;2. School of Aerospace Engineering and Applied Mechanics, Tongji University, China;3. Centre for Composite Materials and Structures, Harbin Institute of Technology, Harbin, China;4. Department of Mechanical Engineering, University of New Orleans, LA 70148, New Orleans, USA;1. Institute for Polymer, Composites and Biomaterials, National Research Council, Piazzale Enrico Fermi, 1, 80055 Portici, Italy;2. Department of Chemical, Materials Engineering and Industrial Production, University of Naples Federico II, Piazzale Vincenzo Tecchio 80, 80125 Naples, Italy |
| |
| Abstract: | An organomodified surface nanoclay reinforced epoxy glass-fiber composite is evaluated for properties of mechanical strength, stiffness, ductility and fatigue life, and compared with the pristine or epoxy glass-fiber composite material not reinforced with nanoclays. The results from monotonic tensile tests of the nanoclay reinforced composite material at 60 °C in air showed an average 11.7% improvement in the ultimate tensile strength, 10.6% improvement in tensile modulus, and 10.5% improvement in tensile ductility vs. these mechanical properties obtained for the pristine material. From tension–tension fatigue tests at a stress-ratio = +0.9 and at 60 °C in air, the nanoclay reinforced composite had a 7.9% greater fatigue strength and a fatigue life over a decade longer or 1000% greater than the pristine composite when extrapolated to 109 cycles or a simulated 10-year cyclic life. Electron microscopy and Raman spectroscopy of the fracture and failure modes of the test specimens were used to support the results and conclusions. This nanocomposite could be used as a new and improved material for repair or rehabilitation of external surface wall corrosion or physical damage on piping and vessels found in petrochemical process plants and facilities to extend their operational life. |
| |
| Keywords: | A Polymer-matrix composites (PMCs) A Nano-structures B Mechanical properties D Electron microscopy |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
