Mechanical and Thermal Properties of Hybrid Coating Products from Polyurethane and/or Polysiloxane Modified Epoxy Based on Acrylic Polyol and Tolonate

Hybrid coating products were synthesized from polyurethane and/or polysiloxane modified epoxy based on acrylic polyol and tolonate. Hybrid coating which synthesized were epoxy-polyurethane, epoxy-polysiloxane and epoxy-polyurethane-polysiloxane. Hybrid coating from epoxy-polyurethane was synthesized by reacting epoxy, acrylic polyol and tolonate. The second hybrid coating from epoxy-polysiloxane was synthesized by reacting epoxy and polysiloxane by using γ-aminopropyl triethoxysilane (γ-APS) as crosslinking agents. And the third hybrid coating from epoxy-polyurethanepoly siloxane was synthesized by reacting epoxy with monomer constituent of polyurethane and polysiloxane via simultaneous reaction. Characterizations of hybrid coating products were using FTIR and 1H-NMR spectroscopy. Curing process of hybrid coating products to obtain film sheets were done by adding versamid 140 as hardener. Characterizations of film sheets were conducted by determination of mechanical properties such as tensile strength and elongation at break and thermal properties by using thermogravimetric analysis (TGA). The mechanical and thermal properties of hybrid coating products have been compared with the unmodified epoxy. Mechanical properties of epoxypolyurethane and epoxy-polyurethane-polysiloxane hybrid coating were higher than the mechanical properties of unmodified epoxy. The highest thermal property was shown by the epoxy-siloxane hybrid coating thermogram. The International Conference on the Innovation in Polymer Science and Technology 2013 (IPST2013), Yogyakarta, Indonesia, October 7 –10, 2013