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http://dx.doi.org/10.7317/pk.2015.39.2.281

Effect of Crosslinking Agent on Adhesion Properties of UV Curable 2-EHA/AA Pressure Sensitive Adhesive  

Kim, Ho-Gyum (Department of Polymer Science, Kyungpook National University)
Min, Kyung-Eun (Department of Polymer Science, Kyungpook National University)
Publication Information
Polymer(Korea) / v.39, no.2, 2015 , pp. 281-286 More about this Journal
Abstract
UV-cured acrylic copolymer pressure sensitive adhesive (PSA) having different amounts of crosslinking agents were prepared and adhesion properties were investigated. 0.01 wt% of MMT clay was dispersed in 2-ethylhexyl acrylate (2-EHA)/acrylic acid (AA) monomer mixture containing 0, 0.05, 0.1 and 0.3 wt% 1,6-hexandiol diacrylate (HDDA) for crosslinking. It was investigated that the curing behavior and surface chemistry of PSAs were merely affected by the presence of MMT clays. On the other hand, adhesive properties were influenced by the MMT addition; a cohesive failure was restrained due to improved molecular elasticity even in uncrosslinked acrylic PSAs. However, it was also appeared that combination of 0.3 wt% crosslinking agent and MMT loading might result in the damage of adhesion properties of PSAs possibly due to the lack of chain flexibility. In our studies, it is suggested that the 2-EHA/AA PSAs incorporating 0.01 wt% of MMT and crosslinked with 0.05 wt% of HDDA exhibited the balanced adhesion properties without severe cohesive failure during strip.
Keywords
UV radiation curing; pressure sensitive adhesive; acrylic copolymer; montmorillonite; adhesion properties;
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Times Cited By KSCI : 2  (Citation Analysis)
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