Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Effect of Polyethylene Glycol Molecular Weight and NCO Index on Properties of the Hydrophilic Reactive Hotmelt Polyurethane Adhesives

Polyethylene Glycol의 분자량 및 NCO index의 변화에 따른 Hydrophilic Reactive Hotmelt Polyurethane의 물성 변화

  • 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)
  • 한영철 ((주)빅스 기술연구소) ;
  • 김덕한 ((주)빅스 기술연구소) ;
  • 오경석 ((주)빅스 기술연구소) ;
  • 신현정 (울산대학교 화학과 에너지 하베스트-스토리지 연구센터) ;
  • 양정한 ((주)빅스 기술연구소) ;
  • 정한모 (울산대학교 화학과 에너지 하베스트-스토리지 연구센터)
  • Received : 2018.03.05
  • Accepted : 2018.05.24
  • Published : 2018.06.27
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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

References

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