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Effects of Intra-particle Composition on the Adhesive Properties and Water Dispersity of Water Dispersible Acrylic Emulsion Pressure Sensitive Adhesive  

Seo, In Seon (Materials Research Center for Information Display, Kyung Hee University)
Lee, Myung Cheon (Department of Chemical and Biochemical Engineering, Dongguk University)
Publication Information
Applied Chemistry for Engineering / v.18, no.5, 2007 , pp. 444-448 More about this Journal
Abstract
The effects of intra-particle composition on the adhesive properties and water dispersity of acrylic emulsion type pressure sensitive adhesives (PSAs) were investigated. In the case of PSA having uniform intra-particle composition, the higher holding strength made the water dispersity lower. By changing the intra-particle composition in hard core/soft shell type, however, it was possible to get PSAs showing both high holding strength and water dispersity. When the weight ratio of MAA/AA is 4/1, high holding strength, but low initial tack and very low water dispersity were observed in both cases of higher contents of (AA+MAA) in core and shell area. When the weight ratio of MAA/AA is 1/4, however, higher water dispersity and lower holding strength were indicated in the case of higher contents of (AA+MAA) in shell area.
Keywords
acrylic; PSA; emulsion; water dispersity; adhesive;
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