Polyurethane Material Report | |
Prepolymer Characteristics | |
%NCO |
5.0±0.2 |
Appearance @20℃ |
White solid |
Viscosity @80℃/mPa·s |
1200 |
Melting conditions, h/℃, 20L |
12/80 |
Processing technology | |
Curing agent |
MOCA |
Chain extension coefficient (NH,/NCO) |
0.9 |
Curing agent dosage (per 100 parts prepolymer) |
14.3 |
Prepolymer temperature/℃ |
80 |
Curing agent temperature/℃ |
110 |
Recommended mold temperature/℃ |
100 |
Gel time/min (400g mixture) |
4-6 |
Demolding time/min (400g mixture) |
20-30 |
Post-curing, h@℃ |
16/100 |
Elastomer physical properties | |
Strength @ 20℃, Shore A |
95±2 |
Tensile strength/MPa |
58.6 |
100% modulus/MPa |
10.8 |
300% modulus/MPa |
25.6 |
Elongation at break/% |
560 |
Tear strength/(right angle, KN/M) |
118 |
Rebound/% |
34 |
DIN roller wear/mm³ |
45 |
No. |
Type |
H |
Pitch |
L*W*H |
Bolt |
D*d |
1 |
230BB |
16 |
101 |
230*70*37 |
M12*25 |
170*0 |
2 |
250BA |
16 |
101 |
250*70*37 |
M12*25 |
200*0 |
3 |
300BA |
101 |
16 |
300*70*37 |
M12*25 |
200*0 |
4 |
300BB |
101 |
16 |
300*70*37 |
M12*25 |
200*0 |
5 |
450BA |
135 |
14 |
450*106*37 |
M12*25 |
350*46 |
6 |
400BA |
135 |
14 |
400*106*37 |
M12*25 |
300*46 |
7 |
500BA |
171 |
20 |
500*136*54 |
M16*30 |
400*60 |
8 |
600BA |
190 |
26 |
600*140*67 |
M20*35 |
400*69 |
EN
