Effect of the Differentiation of Tackifying Resin on Appearance and Property of Hot Melt Pressure Sensitive Adhesive

Hot-melt pressure-sensitive adhesive is a double characteristic adhesive which including hot-melt and pressure-sensitive.As tackifiers,rosin resin,terpene resin and petroleum resin are widely used in hot-melt pressure-sensitive adhesive.Because of small difference of raw material and manufacturing technique,it can be found from researches that same type of resins produced by different factory have some differences in molecular structures and relative molecular mass,the appearance and property of hot melt pressure sensitive adhesive is also obviously different.This differentiation for controlling the quality of hot melt pressure sensitive adhesive is very negative,and has great influence on export product of rosin resin and terpene resin.Therefore,it is very important to study the effects of material composition,manufacturing technique and molecular structure on the application of rosin resin and terpene resin.