Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Effect of Addition of Pentaerythritol Triacrylate on the Properties of Waterborne Polyurethane

수분산 폴리우레탄의 물성에 미치는 Pentaerythritol Triacrylate의 첨가 효과

  • Shin, Yong Tak (Department of Chemical and Biochemical Engineering, Konyang University) ;
  • Hong, Min Gi (Department of Chemical and Biochemical Engineering, Konyang University) ;
  • Choi, Jin Joo (Department of Chemical and Biochemical Engineering, Konyang University) ;
  • Lee, Won Ki (Technical Research Institute, Hanjin Chemical Co. LTD.) ;
  • Yoo, Byung Won (Technical Research Institute, Hanjin Chemical Co. LTD.) ;
  • Lee, Myung Goo (K.L. Tech Co., LTD.) ;
  • Song, Ki Chang (Department of Chemical and Biochemical Engineering, Konyang University)
  • 신용탁 (건양대학교 화공생명학과) ;
  • 홍민기 (건양대학교 화공생명학과) ;
  • 최진주 (건양대학교 화공생명학과) ;
  • 이원기 (한진화학주식회사 기술연구소) ;
  • 유병원 (한진화학주식회사 기술연구소) ;
  • 이명구 (케이엘텍) ;
  • 송기창 (건양대학교 화공생명학과)
  • Published : 2011.08.01
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Abstract

NCO terminated polyurethane prepolymers were synthesized from isophorone diisocyanate(IPDI), polycarbonate diol(PCD) and dimethylol propionic acid(DMPA). Subsequently, acrylic terminated prepolymers were prepared by capping the NCO groups of polyurethane prepolymers with different moles of pentaerythritol triacrylate (0~0.024 moles) as a acrylate monomer. The average particle size of the acrylic terminated polyurethane solutions was increased with increasing PETA contents. Also, the prepared coating films showed better abrasion resistance and pencil hardness than pure waterborne polyurethane.

Isophorone diisocyanate(IPDI), polycarbonate diol(PCD), dimethylol propionic acid(DMPA)를 출발물질로 하여 NCO terminated prepolymer가 합성되었다. 이 prepolymer의 NCO기를 아크릴 단량체로 capping하기 위해 0~0.024 mole로 첨가량이 조절된 pentaerythritol triacrylate (PETA)가 첨가되었다. 제조된 acrylic terminated polyurethane 용액의 평균입경은 PETA의 첨가량이 증가함에 따라 증가하였다. 또한 제조된 코팅 필름의 연필경도 및 내마모성은 순수한 수분산 폴리우레탄보다 우수하였다.

Keywords

References

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