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Effect of surface treatment of carbon fibre on impact and tribological properties of thermoplastic polyimide composite under oil lubricated condition

机译：碳纤维表面处理对油润滑条件下热塑性聚酰亚胺复合材料冲击和摩擦学性能的影响

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摘要

Rare earth solution (RES) surface modification and air oxidation methods were used to improve the interfacial adhesion of the carbon fibre reinforced polyimide (CF/PI) composite. The impact and tribological properties of the PI composites reinforced by the carbon fibres treated with different surface modification methods were comparatively investigated. Results showed that the impact strength of CF/PI composite was improved 28% after RES treatment. And PI composite filled with RES treated CF registered excellent friction and wear properties under oil lubricated condition. The improvement of impact and tribological properties of the CF/PI composite was mainly due to the improvement in interfacial adhesion after RES treatment.
机译：稀土溶液（RES）的表面改性和空气氧化方法被用来提高碳纤维增强聚酰亚胺（CF / PI）复合材料的界面粘合力。比较研究了不同表面改性方法对碳纤维增强的PI复合材料的冲击性能和摩擦学性能。结果表明，RES处理后，CF / PI复合材料的冲击强度提高了28％。 RES处理的CF填充的PI复合材料在油润滑条件下表现出优异的摩擦和磨损性能。 CF / PI复合材料的冲击和摩擦学性能的改善主要归因于RES处理后界面粘合力的改善。

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