WIND TURBINE BLADE COMPRISING PARTICLE-REINFORCED BONDING MATERIAL

摘要

The present invention relates to a wind turbine blade comprising at least two regions bonded together by a bonding material, wherein the bonding material contains particles (6) having a size distribution and stiffness and strength properties which result in the bonding material having higher strength than corresponding bonding material without any particles. Wind turbine blades may be partly or fully made from layers of resin-preimpregnated fibres(4), also called pre-pregs, the resin constituting the bonding material between the layers. In a manufacturing method according to the present invention,particles(6)arearranged between at least some of the pre-pregs (4) during manufacturing. The particles (6) are used to improve the mechanical properties, such as the shear strength or the fracture toughness, and thereby lower the risk of debonding. Hereby a more reliable wind turbine blade is obtained. The invention further relates to a method of manufacturing such a wind turbine blade.