Table 2.

Cure characteristics of various XNBR/epoxy/XHNTs nanocomposites.

Sample Code	Mh (lbf.in) a	Ml (lbf.in) b	(Mh-Ml) (lbf.in)	ts2 (min) c	tc90 (min) d
XE15	66.60	18.77	47.83	3.39	20.3
XE15H3	66.80	19.73	47.07	2.75	19.9
XE15H5	67.60	21.69	45.91	2.68	19.5
XE15H7	69.90	24.07	45.83	2.51	18.8

^a Maximum torque value; ^b Minimum torque value; ^c Scorch time; ^d Optimum cure time.