扫描电子显微镜/能谱仪分析钢帘线与橡胶之间的黏合机理

Analysis of the bonding mechanism between steel cord and rubber by scanning electron microscope/energy spectrometer

作为橡胶复合材料的增强材料的镀黄铜钢丝帘线得到广泛应用。钢丝帘线和橡胶的黏合力在钢丝帘线/橡胶的整个生命周期中是至关重要的,因此,黏接机制是几十年来橡胶工业的一个焦点。各种现代分析仪器,如X射线光谱仪和质谱仪,已被应用于该键合界面的研究。本文采用扫描电子显微镜/能量色散X射线光谱仪(SEM/EDX)研究钢帘线表面形貌和黏合机理。根据这些形态测试结果,观察到橡胶残留带主要位于Cu/Zn空隙区。进一步的研究表明,黏合层宏观结构导致橡胶残留物的联锁机理。

Brass-plated steel cords are widely used as reinforcing materials for rubber composites. The adhesion of steel cords and rubber is critical throughout the life of the steel cord/rubber. Therefore, the bonding mechanism is a focus of the rubber industry for decades. Various modern analytical instruments, such as X-ray spectrometers and mass spectrometers, have been applied to the study of the bonding interface. In this paper, the surface morphology and bonding mechanism of steel cords were studied by scanning electron microscopy/energy dispersive X-ray spectroscopy （SEM/EDX）. Based on the results of these morphological tests, it was observed that the rubber residual zone was mainly located in the Cu/Zn void region. Further research indicates that the macrostructure of the adhesive layer leads to the interlocking mechanism of rubber residues.