Surface design of aramid film for future ME tapes

Surface configurations for aromatic polyamide (aramid) film were investigat ed, with the aim of improving the surface design of basefilm for future Met al Evaporated (ME) tapes, Characteristics of ME tapes with various degrees of surface roughness were measured in this study. Through this investigatio n, the surface configuration contributing to maximum output and durability is identified; this configuration involves both spike protrusions and fine protrusions. In addition, narrowing size distribution of fine protrusions c onsidered to be effective in reducing the real contact area, which leads to improved durability.