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http://dx.doi.org/10.7317/pk.2012.36.2.119

Adhesion Mechanism of Polyurethane Adhesive for Laminated Steel Plate  

Youm, Joo-Sun (Center for Photofunctional Energy Materials, Department of Polymer Science and Engineering, Dankook University)
Kang, Ho-Jong (Center for Photofunctional Energy Materials, Department of Polymer Science and Engineering, Dankook University)
Publication Information
Polymer(Korea) / v.36, no.2, 2012 , pp. 119-123 More about this Journal
Abstract
Adhesion strength of polyurethane adhesive for laminated metal plate was investigated. Also, the effect of laminating conditions on the adhesion strength was understood by measuring peel strength as a function of adhesion temperature and time. The amount of isocyanate appearing due to the unblocking of oxime in polyurethane adhesive affected the strength of adhesion with hydroxyl on the metal plate or aluminum foil and it was controlled by adhesion temperature and time. However, the excess of temperature and time in laminating process caused the lowering of adhesion strength because of the decrease of solvent content as well as thermal degradation of the adhesive.
Keywords
polyurethane adhesives; isocyanate; oxime; peel strength;
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