Table 2. Cure Behavior of X-CR Matrix with the ENR Contents

ENR contents (wt.%)	MH(lb-in)	ML(lb-in)	ΔM(MH-ML)	ts2(min)	t90(min)	CRI(min−1)
10	5.25	1.42	3.83	29.88	70.37	2.47
20	7.80	3.07	4.73	5.63	28.45	4.38
30	13.72	4.40	9.32	2.00	14.40	8.06
40	18.35	5.49	12.86	1.73	25.08	4.28
50	18.32	3.97	14.36	0.78	43.68	2.33

(note) M_H; maximum torque, M_L; minimum torque, t_s2; scorch time, t₉₀; 90% cure time, CRI (Cure Rate Index); 100/t₉₀-t_s2, curing temperature; 180°C