铝合金表面处理对玻璃纤维-铝合金叠层板性能的影响

对铝合金表面经化学法、机械-化学法或化学-阳极氧化法预处理后,再经铺设玻璃纤维布、浸渍环氧树脂、静置固化等过程,获得玻璃纤维-铝合金叠层板;观察分析了铝合金表面和叠层板界面微观形貌,并测试叠层板力学特性。结果表明:3种预处理方法相比较,铝合金表面微孔孔径依次增大、孔数依次增多、分布依次更均匀;化学-阳极氧化法处理的铝合金制备的叠层板界面缺陷少、力学特性好。

Effect of surface pretreatment of aluminum alloys on mechanical properties of glass fiber-aluminum laminates

Glass fiber reinforced polymer-aluminum laminates were obtained by processes,including the procedures of pretreating aluminum surface through chemical,mechanochemical or anodizing methods,laying glass fiber fabric,impregnating epoxy resin,standing and curing. The microstructures of aluminum surface and laminate interfaces were observed and analyzed,and the mechanical properties of laminates were tested. The results indicate that comparing the microstructure of aluminum surface treated by chemical,mechanochemical and anodizing methods,respectively,the diameter and number of micropores on aluminum surface increase orderly,and the distribution of micropores is also much more homogeneous in sequence. The laminates whose aluminum surface is pretreated by chemical anodizing have fewer interface defects and higher mechanical properties.