화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.5, No.5, 851-856, October, 1994
SIS계 점착제의 상용성과 점착물성
Compatibility and Properties of SIS Pressure Sensitive Adhesives
초록
무용제 타입의 hot melt계 중 styrene-isoprene-styrene(SIS) 블럭공중합체에 대한 tackifier resin의 상용성과 점탄성, 그에 영향을 미치는 점착물성에 관해 조사하였다. SIS블럭공중합체의 이소프렌상에서는 C5 petroleum resin이 상용성이 우수하며, coumarone-indene resin은 전혀 상용성을 보이지 않았다. 그에 따른 점착력, 초기점착력, 견지력 등의 점착물성은 C5 petroleum resin>rosin ester resin>coumarone-indene resin순으로 나타났으며, 고무상에서 상용성 이 우수한 tackifier resin이 효과적임을 알았다. 한편, 이때의 저장탄성률(G')에서, plateau modulus값이 1×106-3×106 dyn/cm2일때 점착력이 가장 우수하였다.
Compatibility and viscoelasticity in non-solvent type pressure sensitive adhesive of styrene-isoprene-styreno(SIS) block copolymer with tackifier resin were investigated. In the isoprene phase of SIS block copolymer, it was found that it's compatibility with C5 petroleum resin was good, but that with Coumarone-indents resin was not so good. The magnitudes of peel strength, tack, and holding power were as follows : C5 petroleum resin>rosin ester resin>coumarone-indene resin. The tackifier resin with good compatibility in rubber phase was also effective. However, with plateau modulus value of 1×106-3×106 dyn/cm2, the effect of pressure sensitive adhesives was excellent.
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