Covestro has developed the world’s first 64.2-meter wind turbine blade made completely of polyurethane. The blade is made jointly with Goldwind and LZ Blades. The full polyurethane wind turbine blade, from the spar cap to the shear web and the shell, is made entirely of polyurethane infusion resin.
Static and dynamic fatigue tests have been being carried out to evaluate the durability of the wind turbine blade before small-scale production commences in 2020. Test results showed that the polyurethane resin displays better mechanical properties compared with traditional epoxy resin. Furter it does not require post-curing and has a lower viscosity and faster infusion speed. In addition, Goldwind has optimised the structural design of the blade.
