复合材料用碳纤维的表面处理

Surface Treatment of Carbon Fiber for Composites

碳纤维及其复合材料具有高比强度、高比模量、耐高温、耐腐蚀、耐疲劳和抗蠕变等一系列优异性能,为了充分发挥碳纤维的性能,对其进行表面处理非常关键。分别介绍了碳纤维的气相氧化法、电解氧化法、液相氧化法、等离子氧化法、电聚合法、气相沉积法和表面镀层等表面处理方法,并比较了不同处理方法对碳纤维表面结构和性能的影响。碳纤维的表面处理对提高其使用性能是一个重要的保证措施,针对碳纤维不同的使用要求,应采用不同的表面处理方法。通过对比各种碳纤维的表面处理方法得知:目前应用最为广泛的是臭氧化法?阳极电解氧化法和等离子氧化法。

The carbon fiber and its composites have many excellent performances, such as the high specific strength, the high specific modulus, the heat endurance, anti-corrosion, anti-fatigue, anti-creep etc. It is very important to treat the surface of carbon fibre for making use of its performances. This thesis summarizes several approaches of surface treatment of carbon fibre, for example, gas oxidation, electrolysis oxidation, liquid oxidation, plasma oxidation, electro-polymerization, vapor deposition, electroplating, and compares the influences of different surface treatment methods on the fiber＇s structure and properties. The surface treatment of carbon fiber is an important measure that makes use of its performances. The surface treatment of carbon fiber is different for making use of requirement. By comparing several treatment approaches, it can be concluded that： ozone oxidation, anode electrolysis oxidation and plasma oxidation are widely used now.