Long-Term Storage of Polyurethane-Acrylic Hybrid Pressure-SensitiveAdhesive

Synthesis of hybrid polymers is an important strategy to improve the perfomance of the products. Inthis research, a silane coupling agent was used to bond polyurethane (PU) and acrylic chains andform a hybrid pressure-sensitive adhesive. The studies showed that the silane functional groups didnot react completely during the synthesis and thus, the long-term storage affected the adhesionproperties of the PSA. The storing of the PSA for about ۶ months, resulted in a ۱۷-fold shear holdingtime, and a ۰.۴-fold and ۰.۵-fold tack and peel force, respectively. Hence, it can be concluded that toobtain a stable PSA performance, a mild increase in the temperature of the film after drying may beeffective by accelerating the crosslinking reactions.

کلیدواژه ها:

Adhesive ، Hybrid Polymer ، Polyurethane ، Acrylic ، Silane ، Storage ، Adhesion Properties