为了提高铝箔网的耐腐蚀性能, 采用磷酸阳极化方法对铝箔网表面进行处理. 通过对磷酸阳极化后铝箔网的电化学极化腐蚀测试,优化铝箔网磷酸阳极化工艺; 并对铝箔网及铝箔网导电层复合材料的耐环境腐蚀性能进行分析. 结果表明: 磷酸阳极化处理后铝箔网表面生成了一层疏松多孔的阳极氧化膜, 使铝箔网的耐腐蚀性能得到提高;铝箔网/碳纤维层压板(CFRP)复合材料的粘接强度随腐蚀时间的延长而下降, 而磷酸阳极化后铝箔网/碳纤维层压板复合材料的较未处理者有所提高.
A prerequisite is of proper corrosion performance for the aluminum foil mesh, which is an important component of the composite of aluminum foil mesh/carbon fiber reinforced polymer (CFRP) for aircraft. For enhancing its corrosion resistance, the aluminum foil mesh was anodized in solutions of phosphoric acid. The anodizing parameters were optimized by electrochemical polarization measurements. The environmental corrosion resistance of the anodized aluminum foil mesh and the composite with intercalation of aluminum foil mesh conducting layer was also examined. The result showed that: a porous film was formed on the surface of the anodized aluminum foil mesh, and it improved obviously the corrosion resistance of aluminum foil mesh. The shear strength of lap joint of composites aluminum foil mesh/carbon fiber reinforced polymer (CFRP) declined along with the corrosion time. The shear strength of lap joint of the composites intercalated with anodized aluminum foil mesh was better than that with bare aluminum foil mesh.
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