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Preparation of Pressure Sensitive Adhesive Using Reactive Polyurethane Resin and the Effect of Interfacial Crosslinking on the Adhesion Property  

Shin, Jin Sup (Nanosphere Process and Technology Laboratory, Department of Chemical Engineering, Yonsei University)
Kim, Ji Heon (Nanosphere Process and Technology Laboratory, Department of Chemical Engineering, Yonsei University)
Cheong, In Woo (Nanosphere Process and Technology Laboratory, Department of Chemical Engineering, Yonsei University)
Kim, Jung Hyun (Nanosphere Process and Technology Laboratory, Department of Chemical Engineering, Yonsei University)
Publication Information
Applied Chemistry for Engineering / v.16, no.1, 2005 , pp. 81-85 More about this Journal
Abstract
Pressure sensitive adhesive (PSA) was prepared by semi-batch emulsion polymerization of acryl monomers in the presence of reactive and non-reactive carboxylated polyurethane resin (PUR). Effects of the PUR type, its content, and crosslinker feeding method on the adhesive properties of the PSA was investigated. In this experiment, the PSA prepared with the reactive PUR showed better adhesive property then the PSA with the non-reactive PUR. Especially, peel strength of the PSA, where acetoacetoxy ethyl methacrylate and 1,6-hexane diamine as crosslinkers were introduced, was dramatically enhanced in severe humidity condition due to the interfacial crosslinking.
Keywords
water-borne; urethane-acryl hybrid; emulsion; pressure sensitive adhesive; polyurethane; interfacial crosslinking;
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