碳纤维布复合材料摩擦性能研究进展

Progress in Tribological Properties of Carbon Fabric Composites

高性能纤维织物增强树脂基复合材料是一种独特的先进复合材料,与短切纤维或长纤维等增强形式相比,其整体式结构更利于纤维间的载荷传递,具有承载能力高、耐冲击、不易破裂与剥离等特点,并且可以贴覆在复杂曲面不发生褶皱。摩擦学方面最早被应用于航空航天等高科技领域的关节轴承,提高了其承载能力、耐磨性能和免维护服役性能。随着技术发展和工艺进步,成本不断降低,此类复合材料的摩擦特性在民用领域得到重视。其中,碳纤维布复合材料承载能力、耐热性能和摩擦磨损性能更加优异,在重载滑动轴承、湿式离合器和汽车同步器齿环等领域得到了广泛关注和研究。介绍了近年来国内外碳纤维布复合材料组分构成、制备工艺和摩擦磨损机理方面的研究现状,并对其发展方向进行了展望。

Resin based high performance fabric reinforced composites is a unique advanced composite material, compared with composites reinforced by chopped fiber or filament, which is more conducive to transfer load between fibers because of the overall structure. It has many advantages such as high load capacity, excellent impact resistance, and excellent tear resistance, etc. Besides, it can drape or conform to curved surfaces without wrinkling. As to tribological applications, it was first used for bearing joints in aerospace and other high-tech fields, which increased their carrying capacity, wear resistance and maintenance-free service performance. With technology development and process improvement, the composites prices continue to decline and its friction properties start to be valued in civilian areas. Amongst these composites, carbon fabric composites have attracted overwhelming interest in tribology, due to their superior load capacity, heat resistance, and friction properties. Progress of research on constituents, processing technology and friction and wear mechanisms of carbon fabric composites are reviewed. The development prospect is also discussed.