Table 2. Operating Force (Pmax, N) according to the Aging Temperature and Aging Days

Aging days\Operating force Pmax (N)@ 150°C Pmax (N)@ 180°C Pmax (N)@ 210°C Pmax (N)@ 240°C
0 days 4.28 4.28 4.28 4.28
1 days 4.13 4.06 4.32 3.38
3 days 4.20 4.21 3.99 3.07
7 days 4.24 4.12 3.57 2.63
15 days 4.23 3.97 3.49
30 days 3.85 3.48 3.06
45 days 4.16 3.46 3.12
60 days 3.82 3.50 2.97