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http://dx.doi.org/10.5764/TCF.2018.30.2.90

Effect of Polyethylene Glycol Molecular Weight and NCO Index on Properties of the Hydrophilic Reactive Hotmelt Polyurethane Adhesives  

Han, Young Chul (Polyurethane Research Center, VIX Co., Ltd.)
Kim, Dack Han (Polyurethane Research Center, VIX Co., Ltd.)
Oh, Kyung Seok (Polyurethane Research Center, VIX Co., Ltd.)
Shin, Hyeon Jeong (Department of Chemistry, Energy Harvest-Storage Research Center, University of Ulsan)
Yang, Jeong Han (Polyurethane Research Center, VIX Co., Ltd.)
Jeong, Han Mo (Department of Chemistry, Energy Harvest-Storage Research Center, University of Ulsan)
Publication Information
Textile Coloration and Finishing / v.30, no.2, 2018 , pp. 90-97 More about this Journal
Abstract
Hydrophilic reactive hot-melt polyurethane adhesive(HRHA) using a hydrophilic polyol having different molecular weight and NCO index was synthesized. This HRHA was synthesized using Polyethylene glycol(PEG) as a hydrophilic polyol, Polypropylene glycol(PPG) and Polycaprolactone diol(PCL) as hydrophobic polyols, and Methylene diphenyl diisocyanate(MDI) as an isocyanate. The changes in IR spectrum, viscosity and thermal properties of HRHA with different PEG molecular weights and NCO index were investigated, and the tensile strength and elongation of the HRHA casting film and the peel strength, moisture permeability and water pressure of the HRHA coated fabric were confirmed. In this experiment, as the molecular weight of PEG and NCO index increased, the adhesive strength, tensile strength, elongation and moisture permeability was increased but viscosity and Tg was decreased.
Keywords
reactive hotmelt polyurethane adhesive; hydrophilic polyurethane adhesive; hydrophilic polyol; different PEG molecular weight; NCO index; water vapor permeability;
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Times Cited By KSCI : 2  (Citation Analysis)
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