Natasa Z.Tomić - Innovation center of Faculty of Technology and Metallurgy in Belgrade Ltd, Belgrade, Serbia
Andreja Zivkovic - Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
Marija Vuksanović - Institute of Nuclear Sciences ‘Vinča’, University of Belgrade, Belgrade, Serbia
Jovan Kojić - Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
Radmila Jančić Heinemann - Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
Aleksandar Marinković - Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia

The paper presents a new process for obtaining eco-epoxide materials with reduced combustibility or completely non-combustible, which are synthesized from bio-renewable raw materials, whose production process consists of two stages. A particular aspect of multiple environmental significance is the use of bio-renewable resources and the reduction of the share of the toxic epoxy component in the production of epoxy materials. The first stage considers the synthesis of furan derivatives (2,5-furanicarboxylic acid dichloride), 2,5-furanicarboxylic acid diglycidyl ester (2,5-FDAGli), the synthesis of maleic anhydride (AMK) from fructose, epoxy resin components: epoxy functionalized tannic acid (TA) – ETA, and TA modified by AMK to obtain carboxyl derivatives of TA (KTA) and synthesis of phosphate derivatives of TA (glycidol ester of TA modified by phosphoric acid (TA-PO3-Gli). The second stage considers the synthesis of bio-epoxy resins using ETA, KTA, TA-PO3-Gli and 2,5-FDAGli that are used as a replacement of the epoxy resin component (A) in a ratio 25-100% as a reactive diluent to obtain products that can be used in the construction and other industrial fields and have reduced combustibility or completely non-combustible. The addition of 25% of TA derivate improved the toughness as well as the tensile strength of epoxy material. Partial or full replacement of the epoxy component with a tannin component produces eco-friendly material with while significantly increased fire resistance (V-2 to V-0).

bio-epoxy resin – fire resistance – tannic acid – mechanical properties.