Abstract
A polyester-etheramide (PEEA) based hot melt adhesive (HMA) was successfully designed containing a high content of renewable mass. The PEEA HMA was synthesized based on dimer acid (DA), ethylenediamine (EDA), karanja oil and resorcinol. Karanja oil was reacted with diethanolamine to prepare N–N-bis (2-hydroxyethyl) karanja oil fatty amide (HEKA). Resorcinol was reacted with DA with varying concentrations of resorcinol of 0%, 5%, 10% and 15% on a molar basis. The effects of resorcinol and HEKA on the properties of the hot melt were investigated. The synthesized products were characterized by end group analysis, FTIR, DSC, XRD and the rheological, adhesion and mechanical properties assessed. It was observed that the mechanical and thermal properties increased with increasing concentration of resorcinol. These HMA materials could hold potential for sustainability and high adhesive performance.
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