| |
There are about 23 VEMs frequently used for vibration damping. A few of these materials and their loss factors are listed below
Table 14.1: Important VEM for damping
Name of VEM |
|
Approx, Loss Factor |
|
PVA |
|
2.5 |
Thiokol M-5 |
|
1.22 |
|
Butyl Rubber |
|
1.5 |
3M tap 466 |
|
1.17 |
M 169A Butyl Gum |
|
1.04 |
Polyisobutylene |
|
0.8 |
Dupont Viton A |
|
0.8 |
|
Silicone |
|
0.6 |
|
Neoperene |
|
0.5 |
|
PU |
|
0.3 |
|
Filled Silicon Rubber |
|
0.13 |
|
Natural Rubber |
|
0.1 |
|
