Preparation of Anionomeric Polyurethane Dispersions and Effects of Mixed Polyol on the Properties of Polyurethane

음이온성 폴리우렌탄 분산체의 제조와 우레탄 물성에 대한 폴리올의 혼합 효과

  • 안재범 (한양대학교 공학대학 화학공학과) ;
  • 조항규 (한양대학교 공학대학 화학공학과) ;
  • 정창남 (순천대학교 공과대학 고분자공학과) ;
  • 노시태 (한양대학교 공학대학 화학공학과)
  • Received : 1996.10.23
  • Accepted : 1997.02.26
  • Published : 1997.04.10

Abstract

Polyurethane dispersions(PUD) were prepared from IPDI, PBEAG and PTMG as respectively ester type and ether type polyols and DMPA as anionic site. The effect of composition and type of polyols on the particle size of PUD and mechanical, thermal properties of PUD cast film were investigated. As the PTMG contents in mixed polyols increased, the particle size asymptotically increased and tensile strength showed a mild drop followed by a mild increase. This results from the incompatibility of two polyols, which was possibly identified by DSC analysis.

Keywords

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