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http://dx.doi.org/10.17702/jai.2019.20.4.140

Syntheses and Characterization of UV-curable Polyurethane Acrylates with Eco-friendly Polyols  

Lee, Bong (Department of Polymer Engineering, Pukyong National University)
Kim, Yeong Woo (Korea Institute of Footwear & Leather Technology)
Lee, Won-Ki (Department of Polymer Engineering, Pukyong National University)
Publication Information
Journal of Adhesion and Interface / v.20, no.4, 2019 , pp. 140-145 More about this Journal
Abstract
In view of environmental considerations, the control of carbon dioxide (CO2) and volatile organic compounds (VOCs) is one of important issues in the film and coating industries. Therefore, UV-curable system has been developed due to minimize emissions of VOCs and reduce CO2 emission due to low energy consumption from fast curing. Also, biodegradable polymers economically are attractive because of environmental and economic concerns associated with huge waste plastics. In this study, UV-curable polyurethane acrylates with different compositions of biodegradable polylactide (PLA) diol and poly(ethylene glycol) as diols were synthesized and curing reaction of their end-capped acrylates was performed by UV exposure. Tensile strength, elongation, and Tg of the UV-cured polyurethane acrylates increased with PLA diol content in the diol while their hydrophilicity and thermal stability increased with the PEG content. These results indicated a property of UV-cured polyurethane acrylates could be controlled by environment-friendly diols.
Keywords
VOC; polylactide; poly(ethylene glycol); UV-curable polyurethane acrylates;
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