In composite applications, Vectran® offers a unique balance of properties rarely found in synthetic fibers: minimal moisture regain, thermal stability, and excellent impact resistance. Dynatup impact tests were conducted on1500 denier Vectran® HT and aramid fabric samples. Both samples contained 13 X 13 plain weave constructions within Dow Derakane 411 resin (Vectran® sample thickness: 0.0474 in.-0.0488 in., aramid sample thickness 0.040 in.). A 12.09 lb.load cell attached to a 5/8 in. tup dropped 36 inches through a metal tube before impact Figure 20). Table 15 compares the impact energy required for sample penetration.
Table 15: Impact Resistance Comparison of High-performance Fabrics
Impact Energy
(inch lbs.) |
Vectran® |
Aramid |
(KAI) |
| 25 |
No |
No |
| 30 |
No |
No |
| 50 |
No |
Penetration |
| 75 |
No |
Penetration |
| 100 |
No |
Penetration |
| 125 |
Penetration |
Penetration |