Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A study on Mechanical properties of Waterborne polyurethane dispersion by Monoammonium phosphate

Monoamonium Phosphate를 이용한 수분산 폴리우레탄 수지의 합성과 물성에 관한 연구

  • Lee, Joo-Youb (Department of Disaster Mitigation and Safety Science, Jungwon University) ;
  • Kim, Ki-Jun (Department of Disaster Mitigation and Safety Science, Jungwon University)
  • 이주엽 (중원대학교 융합과학부 방재안전과학과) ;
  • 김기준 (중원대학교 융합과학부 방재안전과학과)
  • Received : 2013.05.20
  • Accepted : 2013.06.28
  • Published : 2013.06.30
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Abstract

In this study, we have synthesized waterborne polyurethane dispersion(WPU) and analyzed mechanical properties of WPU film and leather coatings in different content of monoammonium phosphate. According to the measured data by DSC, sample WPU-AM3 which included high content of monoammonium phosphate showed the highest Tm at $382^{\circ}C$. All samples had good solvent resistance. In tensile tests, WPU-AM3($2.130kg_f/mm^2$) had the lowest physical properties. Also abrasion resistance properteis and elongation properties were investigated, WPU-AM3 had lowest physical properties with 52.07 mg.loss for abraison and 615 % of elongation.

본 연구에서는 monoammonium phosphate가 WPU의 물성에 끼치는 영향을 필름 상태와 피혁(Full-Grain) 표면에 코팅을 하여 기계적 물성을 분석 하였다. DSC 결과 monoammonium phosphate가 많이 함유된 WPU-AM3 샘플이 $382^{\circ}C$로 높은 물성이 측정되었으며, 내용제성은 모든 샘플이 우수함을 알 수 있었다. 인장강도의 경우 monoammonium phosphate가 가장 많이 함유된 WPU-AM3($2.130kg_f/mm^2$)가 가장 낮은 물성을 보였으며, 연실율과 내마모성 역시 monoammonium phosphate가 많이 함유된 WPU-AM3가 615 % 및 52.07 mg.loss로 낮은 물성을 나타내었다.

Keywords

References

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