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Journal Textile Coloration and Finishing
Year / Vol.,
Issue, Month
2018 / V.30,no.2,Jun
Title Effect of Polyethylene Glycol Molecular Weight and NCO Index on Properties of the Hydrophilic Reactive Hotmelt Polyurethane Adhesives
Authors Young Chul Han, Dack Han Kim, Kyung Seok Oh, Hyeon Jeong Shin1, Jeong Han Yang and Han Mo Jeong1
Institution/Affiliations VIX Co., Ltd, 1University of Ulsan
Pages/Total page pp.90 ~ 97 / 8
Language Korean
Abstract 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 Keywords reactive hotmelt polyurethane adhesive, hydrophilic polyurethane adhesive, hydrophilic polyol, different PEG molecular weight, NCO index, water vapor permeability
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Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2018_v30n2_90&ordernum=

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