Elastomers and Composites

  • 제45권4호
  • /
  • Pages.272-279
  • /
  • 2010
  • /
  • 2092-9676(pISSN)
  • /
  • 2288-7725(eISSN)
한국고무학회 (The Rubber Society of Korea)
권호 표지

유화중합에 의한 친환경 전분-아크릴 코팅졸의 합성

Synthesis of Environmental-Friendly Starch-acrylic Coating Sols by Emulsion Polymerization

  • 이미춘 (한국기술교육대학교 응용화학공학과) ;
  • 문우주 (한국기술교육대학교 응용화학공학과) ;
  • 조을룡 (한국기술교육대학교 응용화학공학과)
  • Li, Mei-Chun (Department of Applied Chemical Engineering, Korea University of Technology and Education) ;
  • Mun, Yoo-Ju (Department of Applied Chemical Engineering, Korea University of Technology and Education) ;
  • Cho, Ur-Ryong (Department of Applied Chemical Engineering, Korea University of Technology and Education)
  • 투고 : 2010.09.07
  • 심사 : 2010.09.16
  • 발행 : 2010.12.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

전분은 친환경적인 천연자원이다. 건축 재료로서 활용 가능한 전분-아크릴 코팅졸을 유화중합으로 합성하였다. 제조된 합성물은 IR, $^1H$-NMR을 이용하여 구조를 분석하였고, X-ray Diffraction, 발포 시험, 백색도 시험, 광택도 시험과 인장 강도를 측정을 통하여 물리적 특성을 조사하였다. 전분-아크릴 폴리머 메트릭스에서 전분의 무정형 상태는 XRD결과로 알 수 있었다. 에멀젼을 60% $CaCO_3$ 수용액과 1%, 3%, 5% 발포제와 배합하였다. 그 결과 전분과 발포제의 양이 증가할수록 발포율이 증가하였다. 전분과 발포제의 양이 증가하면 인장 강도가 증가하였다. 그러나 전분과 발포제의 증가로 인해 백색도와 광택도는 감소하였다.

Starch is an environmental-friendly natural source, more interests are attracted to use starch for synthesis of composites and coating sols. Starch-acrylic coating sols for architectural materials were synthesized by emulsion polymerization. The structures of synthesized materials were characterized by using Infrared spectra, $^1H$-NMR spectra, and physical characteristics were investigated by X-ray diffraction, foaming test, whiteness test, gloss test and tensile strength test. XRD results showed that starch in starch-acrylic copolymer matrix was in an amorphous state. Starch-acrylic emulsion was compounded with 1%, 3%, 5% foaming agent (n-pentane) and 60% $CaCO_3$ solution. The results showed that starch and foaming agent could increase the foamability. Tensile strength increased with the enhancement of starch and foaming agent concentration. But whiteness and gloss decreased with increase of starch and foaming agent concentration.

키워드

참고문헌

  1. D. Bikiaris, E. Pavlidou, and J. Prinos, "Biodegradation of octanoated starch and its blends with LDPE", Polym. Degrad and Stabil., 60, 437 (1998). https://doi.org/10.1016/S0141-3910(97)00106-7
  2. K. H. Lee, and G. C. Cho, "Preparation of Starch-g-PMMA copolymer by emulsion polymerization", Polymer(Korea), 22, 570 (1998).
  3. S. M. Kim, S. S. I, and Y. Y. Choi, "Preparation and properties of biodegradation starch graft copolymer", Polymer (Korea), 20, 949 (1996).
  4. R. J. Dennenberg, R. J. Bothast, and T. P. Abbott, "A new biodegradable plastic made from starch graft polymethyl acrylate copolymer", J. Appl. Polym. Sci., 22, 459 (1978). https://doi.org/10.1002/app.1978.070220214
  5. D. R. Patil and G. F. Fanta, "Graft copolymerization of starch with methylacrylate: an examination of reaction variables", J. Appl. Polym. Sci., 10, 1765 (1993).
  6. G. F. Fanta, R. C. Burr, W. M. Doane, and C. R. Russell, "Graft polymerization of styrene onto starch by simultaneous cobalt 60 irradiation", J. Appl. Polym. Sci., 21, 425 (1977). https://doi.org/10.1002/app.1977.070210209
  7. G. F. Fanta, C. L. Swanson, R. C. Burr, and W. M. Doane, "Saponified Starch-g-Polyacylonitrile Variables in the Ce+4 Initiation of Graft Polymerization", J. Appl. Polym. Sci., 28, 2455 (1983). https://doi.org/10.1002/app.1983.070280730
  8. J. H. Hwang, H. Ryu, and U. R. Cho, "A Study on Starchacrylic Graft Copolymerization by Emulsion Polymerization", Elastomer, 4, 221 (2008).
  9. S. H. Song, Y. S. Kim, and U. R. Cho, "A study on synthesis of starch-acryl pressure sensitive adhensive by soap-free emulsion polymerization", Elastomer, 4, 429 (2009).
  10. M. S. Lee, H Ryu, and U. R. Cho, "A Study on the Synthesis of Starch-Acrylic Polymer by Emulsion Polymerization", Polymer(korea), 34, 58 (2010).
  11. C. Liu, Y. Shao, and D. Jia, "Chemically modified starch reinforced natural rubber composites", Polymer, 49, 2176 (2008). https://doi.org/10.1016/j.polymer.2008.03.005
  12. Y. P. Wu, M. Q. Zhang, and L. Q. Zhang, "Preparation, structure, and properties of starch/rubber composites prepared by co-coagulating rubber latex and starch paste", Macromol. Rapid Commun., 25, 565 (2004). https://doi.org/10.1002/marc.200300125
  13. W. L. Balsam, B. C. Deaton, and J. E. Damuth, "Evaluating optical lightness as a proxy for carbonate content in marine sediment cores: Implications for marine sedimentation", Marine Geology, 161, 141 (1999). https://doi.org/10.1016/S0025-3227(99)00037-7