Adhesion performance and optical properties of optically pressure-sensitive adhesives including an isosorbide

摘要

Isosorbide is newly used as a cross-linking agent to replace petroleum-based cross-linking agents for optically clear pressure-sensitive adhesives (PSAs). To control and determine the optimal concentration of isosorbide, the relationship between the glass transition temperature (T-g), referring to the viscoelastic characteristics of the organic polymeric materials as a key factor not only to synthesize the binders and but also to utilize the final products, and the concentration of isosorbide were investigated by measuring the optical properties, the adhesion performance via the peel strength, the probe tack, and the shear adhesion failure temperature. Consequently, it was found that the relationship provided by the linear plots between T-g and the other properties was strongly affected by the concentration of isosorbide due to the cross-linking density.