Terahertz Spectroscopy of Adhesive material under various climatic conditions

Epoxy resin (DGEBA/TETA) is an adhesive material which is used for manufacture of several composite structures for use in aerospace, naval vessels as well as automobiles and various infrastructure applications. Whenever these structures are subjected to various kind of extreme environment situations typically one of the most common modes of failure is primarily due to delamination of the laminates which is typically due to changes in properties of the epoxy resin matrix. Terahertz spectroscopy is being used in this study to probe the degradation mechanism in epoxy resin subjected to saline water, Cold temperature as well as UV light.