4Characterization of Various Structural Adhesive Materials
Srujan Sapkal, Pooja Maske, S. K. Panigrahi and Himanshu S. Panda*
Defence Institute of Advanced Technology, Pune, India
Abstract
With the rapid development of new and upgraded versions of structural adhesives in the modern era, scientists have focused their attention on improving their chemical and physical properties. Structural adhesives have a wide range of applications in sectors such as transport, electronics, biomedical, and aviation because of their unique characteristics. This has motivated many researchers to study these unique characteristics of adhesives to further advance the development of improved versions of structural adhesives. There are several options in the category of structural adhesives, e.g., phenolic resins, epoxy resins, polyurethane resins, acrylic resins, cyanoacrylate resins, and silicone resins with unique properties and applications in several sectors. To study the characteristics of these adhesives, many advanced technical instrumental facilities are available today. For surface analysis, researchers have scanning electron microscopy (SEM) and contact angle measurement; for thermal analysis, techniques such as differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) are available; and for chemical characterization, scientists use nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy. For mechanical characterization, essential techniques ...
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