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针对风力发电叶片在多风沙环境下的固体粒子冲蚀磨损行为,研究了风力发电叶片专用环氧树脂(EPIKOTETM RIM 135、EPIKURETM RIM H 137)、传统玻纤增强环氧复合材料和新型碳纳米纤维纸-玻纤/环氧复合材料的固体粒子冲蚀磨损行为,并测试了不同材料的玻璃化转变温度,进而对比分析了其对冲蚀磨损的影响;针对风力发电叶片在寒冷环境下表面容易结冰的现象,研究了上述三种材料表面的疏水性能,并测试了它们对水的接触角大小。结果表明:碳纳米纤维纸-玻纤/环氧复合材料具有良好的界面结合,且碳纳米纤维纸的引入提高了碳纳米纤维纸-玻纤/环氧复合材料的玻璃化转变温度(从55℃提高到63℃),从而改善了其耐固体粒子冲蚀磨损性能;同时,碳纳米纤维纸的加入改善了碳纳米纤维纸-玻纤/环氧复合材料的表面疏水性能(接触角从104°提高到131°)。
Aiming at the erosive wear behavior of wind turbine blade under the condition of sandy sand, EPGOTETM RIM 135 and EPIKURETM RIM H 137, traditional glass fiber reinforced epoxy composites and novel carbon nanofibers The erosive wear behavior of paper-glass fiber / epoxy composites was tested, and the glass transition temperature of different materials was tested. Then the influence of erosive wear on the erosive wear was analyzed and compared. The phenomenon of ice, the hydrophobic properties of the three materials studied above, and test their contact angle of water size. The results show that the carbon nanofiber paper-glass fiber / epoxy composites have good interfacial bonding, and the introduction of carbon nanofiber paper increases the glass transition temperature of carbon nanofiber paper-glass fiber / epoxy composites ℃ to 63 ℃) to improve the erosion resistance of solid particles. At the same time, the addition of carbon nanofiber paper improved the surface hydrophobicity of carbon nanofiber paper-glass fiber / epoxy composite (the contact angle increased from 104 ° to 131 °).