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

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2018, 30(2), pp.90-97
  • DOI : 10.5764/TCF.2018.30.2.90
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering
  • Received : March 5, 2018
  • Accepted : May 24, 2018
  • Published : June 27, 2018

Young Chul Han 1 Dack Han Kim 1 Kyung Seok Oh 1 Hyeon Jeong Shin 2 Jeong Han Yang 1 Han Mo Jeong 2

1(주)빅스 기술연구소
2울산대학교 화학과

Accredited

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.

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