Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

A study on synthesis of polyurethane dispersion by $H_{12}MDI$ and how effect to mechanical properties by ammonium dihydrogen phosphate

$H_{12}MDI$를 이용한 수분산 폴리우레탄 수지의 합성 및 ammonium dihydrogen phosphate에 의한 물성변화에 관한 연구

  • Lee, Joo-Youb (Department of Disaster Management and Safety Engineering, Jungwon University) ;
  • Nam, Sang-Sung (Department of Disaster Management and Safety Engineering, Jungwon University)
  • 이주엽 (중원대학교 이공대학 방재안전공학과) ;
  • 남상성 (중원대학교 이공대학 방재안전공학과)
  • Received : 2014.02.07
  • Accepted : 2014.03.07
  • Published : 2014.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

For this research, prepared ammonium dihydrogen phosphate aqueous solution and polyurethane dispersion. Use these resin, this article has been analyzed about change of mechanical properties by increasing amount of ammonium dihydrogen phosphate aqueous solution in polyurethan resin on coated leather and dried film. According to measure data for solvent resistance, DPU(polyurethane dispersion) resin and DPU-AD1, D2, D3(samples of polyurethaneresin with ammonium dihydrogen phosphate aqueous solution) had good property. As known in the results, increase of ammonium dihydrogen phosphate constant did not influence to big change of polyurethane resin properties. As test of tensile strength, DPU had highest tensile characteristic($3.114kg_f/mm^2$) and DPU-AD3 had lowest tensile characteristic($2.510kg_f/mm^2$). As same as tensile characteristic, abrasion test determined DPU(50.5 mg.loss) had highest properties. In elongation case, DPU had best properties(602 %) in this experiment.

본 연구에서는 $H_{12}MDI$(4,4'-methylene dicyclohexyl diisocyanate)를 이용한 수분산 폴리우레탄 수지를 합성한 다음 방염제로 활용이 되고 있는 2-인산암모늄(ammonium dihydrogen phosphate) 수용액을 수분산 우레탄 수지에 적하량을 점차 증가시켜 변화하는 물성을 피혁(leather)에 표면 코팅처리된 상태 및 열풍 건조시킨 필름의 물성을 측정 분석하였다. 내용제성 측정 결과 높은 내용제성 물성을 지닌 폴리우레탄 수지에 2-인산암모늄의 함량에 따른 물성적 변화는 크게 없었으며 모두 높은 물성치를 나타내었다. 인장 강도 측정치에서는 폴리우레탄 단독 필름의 측정치가 $3.114kg_f/mm^2$로 가장 높은 수치를 나타내었으며, 2-인산암모늄의 합량이 제일 높은 DPU-AD3가 가장 낮은 인장력 $2.510kg_f/mm^2$을 나타내었다. 또한 내마모도 측정에서는 DPU가 제일 높은 50.50 mg.loss로 우수한 물성변화를 나타내었고, 연실율의 경우역시 우레탄 단독 코팅인 DPU가 602 %로 가장 높은 수치를 나타내었다. DSC측정결과 2-인산암모늄의 함유가 높은 DPU-AD3이 Tm 값이 $384^{\circ}C$로 고온에서 가장 안정한 수치를 나타내었다.

Keywords

References

  1. Y. K. Yang, T. S. Hwang, E. H. Hwang, Preparation of Urethane Nanocomposites with inorganic Nono Fillers and Their Physical Properties. Polymer(Korea). 30, 129 (2006).
  2. A. R. Marrion (Ed.), The Chemistry and Physics of Coatings, Royal Society of Chemistry Paperbacks. 1 (1994).
  3. J. Y. Lee, and K. J. Kim, Study on Mechanical Properties of Waterborne Polyurethane-Acrylic Hybrid Resin for Leather Coatings, J. Kor. Oil Chemist's Soc., 27, 188 (2010).
  4. S. S. Lee, S. H. Lee, D. S. Lee, Preparation and Properties of Waterborne Polyurethane Based on Mixtures of Hybroxy-Terminated Polybutadien and Poly(propylene glycol). Polymer(Korea), 30, 152 (2006)
  5. Elisabete Almeida, Dulcínea Santos, and Jorge Uruchurtu, Corrosion performance of waterborne coatings for structural steel, Prog. Org. Coatings, 37, 131 (1999). https://doi.org/10.1016/S0300-9440(99)00064-8
  6. L. K. Aggarwal, P. C. Thapliyal, S. R. Karade, Properties of polymer-modified mortars using epoxy and acrylic emulsion, Con. Bul. Materials, 21, 379 (2007).
  7. Y. Okamoto, Y. Hasegawa, F. Yoshino, Urethane/acrylic composite polymer emulsions, Prog. Org. Coatings, 29, 175 (1996). https://doi.org/10.1016/S0300-9440(96)00660-1
  8. V. I. Yeliseyeva, N. G, Zharkova, A. V. Chubarova, P. I. Zubov, Emulsion polymerization of lower alkyl acrylates, Polym, Sci. U.S.S.R, 7, 171 (1965). https://doi.org/10.1016/0032-3950(65)90254-6
  9. S. K. Kim, P. W. Shin, D. C, Lee, Synthesis of Water Soluble Acrylic Modified Epoxyester Resin and Physical Properties of Coatings, J. Kor. Oil Chemist's Soc., 28, 35 (2011).
  10. Y. K. Lee, S. Y. Cho, H. S. Park and J. P. Wu, Preparation and Characterization of Polyurethane Emulsion Modified with Halogen Compond, J. Kor. oil Chemist's Soc., vol 18, 241 (2001).
  11. Alex Wegmann, Chemical resistance of waterborne epoxy/amine coatings, Prog. Org. Coatings, vol. 32, 231 (1997). https://doi.org/10.1016/S0300-9440(97)00062-3
  12. K. H. Park, Y. S. Lee, J. Y. Song, S. Lee, S. I. Kim, The Effect of Thermal Decomposition of Epoxy Resin for a Variation of Hardener, J. Kor. oil Chemist's Soc., vol. 24, 397 (2007).
  13. W. B. Im and H. S. Park, Preparation and Physical Properties of Polyurethane Flame Retardant Coatings by Phosphate Containing Modified Polyester/TDI-Adduct, J. Kor. oil Chemist's Soc., vol. 15, 77 (1998).
  14. J. W. Lim, S. M. Yun and N. H. Jeong, Synthesis of Epoxy Functionalized Fluorosilicone Surfactant, J. Kor. oil Chemist's Soc., vol. 27, 87 (2010).
  15. Z. Yang, J. Li, J. Luo, P. Wang, K. Zhou, Solid-liquid phase equilibrium for the ternary system urea phosphate + ammonium dihydrogen phosphate + water at 25 and 55 ${^{\circ}C}$, Fluid Phase Equilibria, 335, 60 (2012). https://doi.org/10.1016/j.fluid.2012.06.002
  16. M. T. Zafarani-Moattar, J Gasemi, Liquid -liquid equilibria of aqueous two-phase systems containing polyethylene glycol and ammonium dihydrogen phosphate or diammonium hydrogen phosphate. Experiment and correlation, Fluid Phase Equilibria, 198, 281 (2002) https://doi.org/10.1016/S0378-3812(01)00805-6
  17. A. Abdel-Kader, A.A. Ammar, S.I. Sal, Thermal behaviour of ammonium dihydrogen phosphate crystals in the temperature range 25-600 ${^{\circ}C}$, Thermochimica Acta, 176, 25 (1991).