|
Model
|
D2560 |
D2575 |
D2590 |
D3565 |
D3575 |
D3590 |
|
NCO/% |
6.0±0.2 |
7.5±0.2 |
9.0±0.2 |
6.5±0.2 |
7.5±0.2 |
9.0±0.2 |
| State at 20 ℃ |
PTMG system, white solid |
Polyester system, white solid |
||||
| BDO100g Prepolymer /g |
6.1 |
7.8 |
9.3 |
6.8 |
7.8 |
9.3 |
| Viscosity (85℃)/mPa·s |
1400 |
1000 |
750 |
1400 |
1200 |
1000 |
| Mixing temperature /℃（ Prepolymer /1,4BD） |
80/40 |
80/40 |
80/40 |
80/40 |
80/40 |
80/40 |
| Gel time /min |
10 |
8 |
7 |
10 |
8 |
7 |
| Post vulcanization time (110℃)/h |
48 |
48 |
48 |
48 |
48 |
48 |
| Hardness（Shore A） |
87±2 |
90±2 |
95±2 |
85±2 |
90±2 |
95±2 |
| 100% Modulus/MPa |
6 |
9.2 |
12.6 |
5 |
8.6 |
12.3 |
| 300% Modulus /MPa |
17 |
16.6 |
18.9 |
10 |
19.7 |
29.1 |
| Tensile strength /MPa |
44 |
43 |
45 |
50 |
46 |
55 |
| Elongation / % |
472 |
683 |
500 |
540 |
580 |
530 |
| Tear strength /（KN/m） |
75 |
110 |
130 |
82 |
117 |
132 |
| Rebound / % |
61 |
64 |
55 |
43 |
35 |
39 |
|
Density （24℃）/（g/ cm3） |
1.11 |
1.11 |
1.12 |
1.23 |
1.26 |
1.24 |
|
Din wear /mm³ |
36 |
44 |
44 |
32 |
35 |
38 |