几种大型风力发电叶片用环氧树脂复合材料的对比分析

将风电叶片用真空灌注型环氧树脂体系MERICAN 3311A/B与同类两款产品进行了对比分析,研究了三种树脂体系对玻纤的浸润性;采用真空导入成型技术制备了复合材料板,并对复合材料的力学性能进行了研究。结果表明,MERICAN3311A/B粘度低、浸润性良好、FRP力学性能高,与纤维的匹配性良好,达到甚至某些方面已超越国内外同类进口产品的水平,能够满足风电叶片对树脂的性能要求。

COMPARATIVE ANALYSIS ON SEVERAL KINDS OF EPOXY RESIN COMPOSITES FOR LARGE-SCALE WIND TURBINE BLADES

In this paper,three kinds of vacuum infusion epoxy resin systems,i.e.,MERICAN 3311 A/B,another domestic product and an imported product,for wind turbine blades were comparatively analyzed.The wettability of these epoxy resin systems for glass fibers were investigated,and the mechanical properties of their composites prepared by vacuum infusion molding process,were also studied.The results show that MERICAN 3311A/B had low viscosity and good wettability to glass fiber,which was satisfactory for vacuum infusion with glass fibers.Accordingly,through testing the mechanical properties of resin fiberglass plates,three kinds of epoxy resin systems all had good mechanical behavior,and the strength and modulus of MERICAN 3311A/B even exceeded the imported product and the other domestic product.Therefore,according to the comprehensive study of the behaviors,MERICAN 3311A/B can fufill the needs of large-scale wind turbine blades,which can be used to manufacture wind turbine blade.