Morphological changes in epoxy resin (DGEBA/TETA) exposed to low temperatures |
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Authors: | P Suma Sindhu Dipa Ghindani Shriganesh S Prabhu |
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Affiliation: | 1. Department of Civil Engineering, IIT Kharagpur, Kharagpur, India;2. Tata Institute of Fundamental Research, Mumbai, India |
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Abstract: | AbstractEpoxy resin (DGEBA/TETA) is commonly used as an adhesive material. When this material is subjected to low temperatures for an extended period of time, it undergoes changes in inter/intramolecular vibrations which has been probed in this research through a combination of terahertz spectroscopy, differential scanning calorimetry and infrared spectroscopy. Distinctive morphological changes of the virgin material are observed for the exposed material at cold temperature which can be attributed to incomplete reversibility of segmental as well as entire molecular chain mobility. |
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Keywords: | DGEBA/TETA THz spectroscopy FTIR differential scanning calorimetry |
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