Windmill propeller blade and method of making same

Details Windmill propeller blade and method of making same Windmill propeller blade and method of making same

F - Mech Eng,Light,Heat,Weapons

03

D

F03D 11/00 (2006.01) C08L 63/00 (2006.01) C08L 63/10 (2006.01) F03D 1/06 (2006.01)

Patent

CA 2724239

A windmill blade which comprises reinforcing fibers in a toughened resin matrix. The resin matrix is made from a composition which comprises (a) one or more epoxy resins and/or one or more epoxy vinyl ester resins, (b) one or more reactive diluents, and (c) at least one amphiphilic block copolymer. The amphiphilic block copolymer comprises at least two different polyether blocks and is present in the composition in an amount of from about 0.5 % to about 10 % by volume, based on the total volume of the matrix composition.

L'invention concerne une pale d'éolienne qui comprend des fibres de renforcement dans une matrice de résine durcie. La matrice de résine est faite d'une composition qui comprend (a) une ou plusieurs résines époxy et/ou une ou plusieurs résines époxy ester vinylique, (b) un ou plusieurs diluants réactifs, et (c) au moins un copolymère à blocs amphiphile. Le copolymère à blocs amphiphile comprend au moins deux blocs différents de polyéther et est présent dans la composition dans une quantité d'environ 0,5 % à environ 10 % en volume, sur la base du volume total de la composition de matrice.

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