Kevlar Carbon Fiber
Kevlar is a heat resistant and strong synthetic fiber related to other aramids such as nomex and technora developed by stephanie kwolek at dupont in 1965 this high strength material was used first commercially in the early 1970s as a replacement for steel in racing tires.
Kevlar carbon fiber. Although not as stiff as carbon fiber a kevlar or carbon kevlar part can be designed to be much stronger than one solely comprising carbon fiber or fiberglass in certain applications. Fabrics containing both carbon fiber and kevlar in one woven fabric. Fibre glast only carries kevlar 49 fabrics. Kevlar fabrics can be used with or as a great alternative to carbon fiber or fiberglass.
Kevlar aramid is used for high performance composite applications where lightweight high strength and stiffness damage resistance and resistance to fatigue and stress rupture are important. The important thing to take away is that carbon fiber is about twice as stiff as kevlar and about 5 times stiffer than glass. 2 x 2 twill tow size. The benefits of kevlar are well known namely a high degree of toughness and resistance to impact.
Kevlar fiber has a tensile strength comparable with that of carbon fiber a modulus between those of glass and carbon fibers and lower density than both. Typically it is spun into ropes or fabric sheets that can be used as such or as an ingredient in composite material. Composites grade kevlar is lightweight impact resistant abrasion resistant heat resistant and has great strength properties for the most demanding applications. The actual figures presented here are for comparison only.
Carbon fiber is by far the stiffer of the composite materials. There are many types of kevlar glass and carbon fiber and they all differ.