ゴムと真鍮めっきスチールコードとの接着界面観察

抄録

Buried interface such as adhesive layer between rubber and brass plated steel cord often has difficulties interms of direct observation. Because the interface layer is strongly adhered each other, and composed of somelayers, such as cupper sulfide, zinc oxide and zinc sulfide. Many studies have been carried out to observe andclarify the adhesion mechanism between rubber and steel cords.In this paper, some studies focusing on the buried interfaces of rubber/brass systems are introduced.Synchrotron PES（ Photoelectron Spectroscopy） analysis can access the formation process of the adhesiveinterlayer during vulcanization by using so-called a paper filter method. The paper filter method can preparequasi-adhesive layer on the brass plate which is easily taken out. In another technique HAXPES（ Hard X-rayPhotoelectron Spectroscopy） can directly observe the buried interfaces. Furthermore, studies on TEM orSEM observation are also introduced. FIB can prepare cross-section specimens of the adhesive layer for TEMor SEM observation. Recently a 3D-observation method using FIB-SEM is developed and applied to observerubber/brass adhesive layer. Direct analysis using TEM or SEM is one of the powerful tools to clarify theadhesive mechanism.