Abstract
Contemporary materials science aspects related to the development and expansion of wind energy are discussed in this paper. With view on the extraordinary durability and reliability requirements toward wind turbine blades, and high maintenance costs, the wind turbine materials should demonstrate very high strength and fatigue resistance, combined with low weight. Possibilities of wind turbine blade protection against the most common blade degradation mechanisms, in particular, leading edge erosion, and requirements toward protective coatings are reviewed. Hybrid composites reinforced with lightweight carbon fibers are discussed as a way to reduce gravitational load on the blades. Another side of using strong durable materials for wind turbine blades is related with the recycling challenges. In connection with ageing the first generation of wind turbines, installed in early 2000s, the problems of waste management and recycling become especially relevant. Possibilities of development of structural composites from bio-based elements, recyclable polymers and thermoplastics, which have the same strength as the usual fiber glass epoxy, are discussed in this paper.
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