Fibrous materials are used in various transport systems to promote comfort (insulation and interior lining of cars, planes, trains, etc.), improve safety (example: air bags, belts, tire reinforcement, etc.), weight reduction and, consequently, reduction of CO2 emissions (example application of composite materials as supports for instrument panels, airframes, hulls, boat propellers, etc.). These materials are used in air transportation systems (such as aircraft and helicopters), ground systems (cars, buses, trucks and trains) as well as marine systems (boats and ships).
Polyester and polyamide fibers are widely used in order to improve the safety in case of seat belts and airbags.
For the weight reduction and consequent reduction of CO2 emissions, carbon, aramid and natural fibers (flax, hemp and coconut) are used in combination with polymeric matrices, such as epoxy or polyester.
The use of polypropylene, wool, polyester and viscose fibers is very common in the elements of transport vehicles to provide comfort.