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http://dx.doi.org/10.17702/jai.2017.18.3.134

UV-cured Pressure Sensitive Adhesive for Protective Film Application  

Jamaluddin, Jamarosliza (Department of Chemical and Biochemical Engineering, Dongguk University)
Lee, Myung Cheon (Department of Chemical and Biochemical Engineering, Dongguk University)
Publication Information
Journal of Adhesion and Interface / v.18, no.3, 2017 , pp. 134-140 More about this Journal
Abstract
In this study, we made UV cured acrylic pressure sensitive adhesive containing silicone-urethane-acrylate (SUA) oligomer for a coating on protective film and investigated the effect of SUA oligomer content and UV-dose on adhesion properties. The results illustrated that peel strength decreases with increasing oligomer content and UV-dose, while holding power increases. The gel fractions sharply increased after UV irradiation and then remain constant with prolonged UV exposure. From peel-off test, sample S70 (70% oligomer content) shows the best peelability and removability without remaining any mark or adhesive material on the test substrate than S50 (50% oligomer content) and S60 (60% oligomer content). Sample S70 also showed a surface energy lower than $26mJ/m^2$ and a transmittance higher than 95% at UV-dose 1857 and $2270mJ/cm^2$ which met the required properties for protective film application.
Keywords
adhesion; peel strength; holding power; surface energy;
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