| 초록 |
Adhesive properties are dependent on various important factors including viscosity, glass transition temperature, and composition for proper application. Peel strength and adhesive residue are important parts for the application of pressure-sensitive adhesives to protective films. The variation in adhesion strength and residue of the acrylic pressure-sensitive adhesive was studied in terms of monomer composition and retarder. Acrylic pressure-sensitive adhesives were synthesized by using butyl acrylate and 2-hydroxyethyl acrylate as monomers, azo-bis-isobutyronitrile as an initiator, and isopropyl alcohol as retarder. Acrylic pressure-sensitive adhesives were applied to PET base film by a bar coater. Peel strength was measured with a universal testing machine. The residue content was determined using a microscope. The functional groups in adhesives were evaluated with Fourier-transform infrared spectroscopy. Both monomer composition and retarder showed a crucial role in controlling the properties of acrylic pressure-sensitive adhesive. |
