Abstract: Poly(vinyl chloride-co-vinyl acetate) resin was mixed with alkyl sulfonate plasticizer and heat stabilizer to prepare glass adhesives by means of a high-speed mixing equipment, and the morphology, mechanical properties and thermal stability of the obtained adhesives were investigated. The results indicated that the peelable adhesives achieved the optimum mechanical properties and morphological characteristics when the plasticizing temperature was set at 150 ℃ and the plasticizing time was set to 10 min. When 0.75 wt% of dibutyltin dilaurate thermal stabilizer was incorporated, the obtained plasticized films achieved an optimal thermal stability. The plasticized films also exhibited an optimum defoaming effect when 0.75 wt% of non-silicone polymer defoamer was added. In addition, there is no breaking-off and vesicles observed in peelable plasticized films after immersed in 20 wt% hydrochloric acid and sodium hydroxide solutions for 30 min. These films can be easily peeled in a large area.