2,5 dimethyl 2,5 hexane diamine: a promising new curing agent for epoxy resins: Rinde, J. A., Chiu, I., Mones E. T. and Newey, H. A. SAMPE Quarterly Vol 11 No 2 (January 1980) pp 22–31

Abstract

We have discovered a new curing agent for epoxy resins that has both interesting and useful properties. The compound, 2,5 dimethyl 2,5 hexane diamine (DMHDA) is a sterically hindered primary aliphatic amine that, as a curing agent for DGEBA epoxy resins, has the following desirable characteristics: (a) at room temperature it forms a stable B-stage resin; (b) it is a good wet-filament winding resin having a low viscosity (0.5 Pa.s) and a long gel time (21 h for a 30-g mass); (c) the cured resin properties are good - for example, the tensile strength is 86 MPa (12,500 psi), and the glass transition temperature is greater than 140/sup 0/C when cured at 130/sup 0/C.