Construction and adhesion performance of biomass tetrahydro-geraniol-based sustainable/transparent pressure sensitive adhesives

Using the biomass-based acrylate, tetrahydro-geraniol acrylete (TGA), the sustainable and transparent pressure sensitive adhesives (PSAs) were fabricated ant their adhesion performance were investigated possibility to be applied as optically clear adhesives. [Display omitted] •Biomass-based acrylates (TGA) were synthesized from tetrahydro-geraniol molecule.•Using the biomass-based acrylate, UV-cured transparent acrylic pressure sensitive adhesives (PSAs) were fabricated.•The acrylic PSAs exhibited high transparency and stable weatherability under reliability testing.•Increasing TGA concentration in the acrylic PSAs decreased the adhesion properties. Using the tetrahydro-geraniol acrylate (TGA) synthesized from biomass tetrahydro-geraniol, UV-cured transparent acrylic pressure sensitive adhesives (PSAs) composed of semi-interpenetrating networks were successfully fabricated. The utility for optically clear adhesive on adhesion performances according to various concentrations of TGA in the acrylic PSAs were investigated. After characterizing the photo-polymerized PSA syrups, the optical properties for the acrylic PSA films were examined using UV–vis spectroscopy, a color-difference meter, and a haze meter. The acrylic PSAs exhibited high transparency and stable weather-ability under reliability testing (85/85 test). With increasing TGA concentration in the acrylic PSAs, adhesion properties such as the 180° peel strength, shear holding power, and probe tack had decreased.