Preparation and characterization of soybean oil/polydimethylsiloxane hybrid bioepoxy resin and its application in antitermite coating

Abstract

A soybean oil and polydimethylsiloxane-based hybrid bioepoxy resin (HSB) has been prepared by reacting epoxidized soybean oil (ESO) and epoxy-terminated polydimethylsiloxane (EPDMS). The two components were crosslinked using citric acid in solution. The prepared hybrid (HSB) was characterized using infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance spectroscopy (1H-NMR). The surface morphology was examined by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX); thermal behavior of neat bioepoxy was explored using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The blend (HSB) was examined for their anti-termite activity. The possible applications of this hybrid material were tested by coating on paper as well as wooden plates, and their coating properties were studied.