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A Study on Synthesis of Starch-acryl Pressure Sensitive Adhesive by Soap-free Emulsion Polymerization  

Song, Su-Hyun (Department of Appied Chemical Engineering, Korea Institute of Technology and Education)
Kim, Young-Seok (Samyang Group, Food R&D Center)
Cho, Ur-Ryong (Department of Appied Chemical Engineering, Korea Institute of Technology and Education)
Publication Information
Elastomers and Composites / v.44, no.4, 2009 , pp. 429-435 More about this Journal
Abstract
The pressure sensitive adhesives (PSA) were synthesized by soap-free emulsion polymerization of acrylic monomers such as butyl acrylate, 2-ethyl hexyl acrylate, and acrylic acid in the presence of starch as a protective colloid and copolymer. The peel strength and holding power of PSA were increased with starch contents due to the enhancement of gel content, But the initial tackiness of PSA was decreased with starch contents. The contact angle analysis of PSA indicated that the wettability was increased with starch contents owing to the increase of polarity by hydroxy group in starch. In the pH measurement of emulsion with time for biodegradability, the starch in the PSA accelerated the lowering of pH due to the formation of organic acids followed by decomposition of starch.
Keywords
soap-free emulsion polymerization; starch; pressure sensitive adhesive; biodegradability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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