Effect of reactive
Effect of reactive vinyl-based modifier on thermal and failure resistance of reinforced epoxy used in pipelines
Ahmad Fakhar1*, Mohammad Aabaadiaan2, Mohamad Farhat3
1 Department of mechanics, Kashan Branch, Islamic Azad University, Kashan, Iran
2 Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
3 Department of engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
Corresponding author: E-mail address: [email protected]
Abstract: In recent years, epoxy is used as the matrix for manufacturing composites that are used in medical and mechanical applications. For examples reinforced epoxy is applied in manufacturing human prostheses, scaffolds, fiberglass pipelines and other applications. In this work, we have applied a vinyl-terminated butadiene acrylonitrile reactive modifier to systematically improve the failure resistance of an epoxy resin and its reinforcing composite. Vinyl-based modifier is known as a powerful toughening agent for epoxy-based thermoset polymers. Several mechanical tests including Impact resistance test and compression test has been performed. In order to evaluate the effect of rubber toughening on thermal resistance of reinforced epoxy, the dynamical scanning calorimeter has been utilized. In addition, damaged surfaces of fractured samples were investigated using scanning electron microscopy techniques. It is found that vinyl modifier improve the failure resistance of the reinforced epoxy resin. This can be attributed to the high cavitations of oligomer particles. However this improvement is accompanied with decreasing the thermal resistance of the material. This is the result of solving vinyl-based oligomer in the matrix during the mixing.
[Fakhar A, Aabaadiaan M, Farhat M. Effect of reactive vinyl-based modifier on thermal and failure resistance of reinforced epoxy used in pipelines and medicine. Life Sci J 2013;10(1):170-174] (ISSN:1097-8135).http://www.lifesciencesite.com. 25
Key words: Epoxy resin, Vinyl-terminated butadiene acrylonitrile (VTBN), Mechanical properties
