An adhesive composition having pressure sensitivity includes an adhesive polymer and a nonadhesive polymer. The adhesive polymer has a glass transition point by a dynamic viscoelasticity measuring method of −60° C. to −5° C., and the nonadhesive polymer has a glass transition point by a differential scanning calorimeter of −5° C. or less, and a fusing point of higher than 25° C. by a differential scanning calorimeter, and also has compatibility with the adhesive polymer in uncrystallized state. The adhesive composition can effectively enhance pressure sensitive adhesivity at low temperatures and tack suppression effect at the same time, which makes easy an accurate positioning of the site for sticking, and which can be easily stuck by press fitting even in an environment of low temperature of lower than 0° C.
一种具有压力敏感性的粘合剂组合物包括一种粘合剂聚合物和一种非粘合剂聚合物。通过动态粘弹性测量方法,粘合剂聚合物的
玻璃化转变点为零下 60 摄氏度至零上 5 摄氏度,通过差示扫描量热计,非粘合剂聚合物的
玻璃化转变点为零上 5 摄氏度或更低,通过差示扫描量热计,熔点高于 25 摄氏度,并且与未结晶状态的粘合剂聚合物具有相容性。该粘合剂组合物能有效提高低温下的压敏粘合性,同时增强粘性抑制效果,使粘合部位易于准确定位,即使在低于 0°C 的低温环境中也能通过压配轻松粘合。