PTMG/TDI series
hardness：shore A 75A – shore D 60D
The product has the characteristics of good operability, wide hardness range, good resilience, wear resistance and excellent mechanical properties.
Used for making miscellaneous polyurethane elastomer products such as high elastic rubber wheel, screen plate, rubber roller, sealing ring.
|
型 号 |
D2135 |
D2142 |
D2150 |
D2162 |
D2170 |
D2196 |
|
NCO含量/% |
3.5±0.1 |
4.2±0.2 |
5.0±0.2 |
6.2±0.2 |
7.0±0.2 |
9.65±0.2 |
| 20℃时的物态 |
白色固体 |
白色固体 |
白色固体 |
白色固体 |
白色固体 |
白色固体 |
| MOCA100g预聚体用量/g |
10 |
12.1 |
14.3 |
18 |
20.5 |
27 |
| 粘度(85℃)/mPa·s |
1200 |
750 |
1200 |
480 |
320 |
350 |
| 混合温度/℃（预聚体/MOCA） |
85/120 |
85/120 |
80/120 |
80/120 |
75/120 |
70/110 |
| 凝胶时间/min |
11 |
10 |
8 |
6 |
4 |
2 |
| 后硫化时间(100℃) /h |
10 |
10 |
10 |
10 |
10 |
10 |
| 硬 度（邵尔 A） |
85±2 |
90±1 |
93±1 |
95±1 |
97±1 |
75±2 邵尔 D |
| 100%定伸应力/MPa |
5.4 |
7.5 |
9.1 |
12.8 |
18.5 |
32.6 |
| 300%定伸应力/MPa |
9.6 |
14.1 |
17.2 |
36.3 |
42.6 |
- |
| 拉伸强度/MPa |
27 |
33 |
39 |
48 |
49 |
54 |
| 扯断伸长率/ % |
550 |
500 |
440 |
350 |
320 |
220 |
| 撕裂强度（直角）/(KN/m) |
65 |
78 |
88 |
95 |
111 |
160 |
| 撕裂强度（裤型）/(KN/m) |
21 |
28 |
33 |
33 |
43 |
44 |
| 回 弹/ % |
61 |
54 |
49 |
47 |
45 |
51 |
|
密度（25 C）/(g/cm3) |
1.07 |
1.09 |
1.12 |
1.13 |
1.15 |
1.18 |
|
DIN磨耗/mm³ |
39 |
39 |
45 |
38 |
52 |
70 |
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