Wind turbines
The massive blades of modern windmill designs depend on the light weight and structural rigidity of Kevlar® Mechanical Paper. It helps to minimize rotational weight and make the transfer of energy as efficient as possible.
Construction composites strengthening concrete structures
Kevlar® delivers performance and value to customers in the construction composites industry by providing better elongation properties. Kevlar® helps contain cracks in the structures and may help prevent injury to people from accidents caused by construction mistakes when natural disasters occur.
Marine composites
Kevlar® in marine composites provides the ideal balance of strength, stiffness and light weight properties for many marine applications. In patrol and service boats, higher speeds can be achieved by increasing engine power—this option has the potential to be prohibitively expensive. Another way is to reduce weight by incorporating Kevlar® reinforcement in existing laminate constructions or in new designs. Hulls reinforced with Kevlar® are lighter yet tougher, more damage tolerant, and perform better under hydrodynamic fatigue loading.
In luxury yachts and large vessels ranging from 96 feet in length or more, hull and superstructure weight is a smaller proportion of total weight than in patrol or service boats. Larger boats still need to be constructed at minimum weight or within certain weight limitations. In this case, however, weight reductions are usually made to achieve speed increases, or to trade off the weight saved for improved fuel economy, increased payload or to carry more accessories. Both DuPont™ Kevlar® and DuPont™ Nomex® have proven to be highly effective for the construction of hulls, superstructures, bulkheads and furniture that are both tough and durable.
The use of Kevlar® in leisure boats and for competition maxis, sail and power boats has gained wide recognition in the competition world. Sail boats (maxis) for participating in prestigious events such as the America’s Cup, Glove Challenge, and the Whitbread Cup, as well as numerous offshore world championship power boats, have attributed their success to the use of Kevlar® and Nomex® in the construction of hulls and superstructures (including Kevlar® in sails). If speed is the main criteria for using advanced composite materials, their resistance to tough conditions comes in a close second.
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