Browse > Article
http://dx.doi.org/10.7473/EC.2011.46.2.158

Study on Type of Different Polyols for Physical Properties of Polyurethane Foam Under Sea Water  

Kim, Sang-Bum (Department of Chemical Engineering, Kyonggi University)
Publication Information
Elastomers and Composites / v.46, no.2, 2011 , pp. 158-163 More about this Journal
Abstract
Rigid polyurethane foam (PUF) was synthesized with different contents of aliphatic polyester polyol, aromatic polyester polyol and aliphatic polyether polyol to know change of properties under sea water. UTM(universal testing machine), DSC(differential scanning calorimetry), hardness meter and FT-IR(Fourier transform spectroscopy) were used to study the PUF`s physical properties under sea water. Compressive strength and hardness of PUF decreased with increasing the content of aromatic polyester polyol under sea water as aging. According to the results of IR spectral analysis, reduction of urethane and urea peak was found and allophanate and biuret peak increased. Although glass transition temperature of PUF increased, mechanical properties of PUF decreased under sea water, because PUF gets brittle when crosslink density increase.
Keywords
rigid polyurethane foam; polyester polyol; polyether polyol; sea water; physical property;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 S. K. Kang, I. S. Choi, and S. B. Kim, "Effect of Isocyanate Index on the Physical Properties of Rigid Polyurethane Foam under Sea Water", J. Korean Ind. Eng. Chem, 19, 427 (2008).
2 Pretsch, T. and Muller, W.W, "Shape memory poly(ester urethane) with improved hydrolytic stability", Polym. Deg. Stab., 95. 5, (2010).
3 G. B. Kistiakowsky and Arthur J. Rosenberg, "The Kinetics of Urea Hydrolysis by Urease", J. Am. Chem. Soc., 74, 20 (1952).   DOI
4 Y. Camberlin and J. P. Pacult, "Quantitative DSC evaluation of phase segregation rate in linear segmented polyurethanes and polyurethaneureas", J. Polym. Sci. Polym Chem. Ed., 21. 415 (1983).   DOI
5 K. B. Wagener, J.r. Matayabas, J. C., and S. Wanigatunga, "Quantitative study of microphase separation. Pivalolactoneblock- oxyethylene oligomers: effect of soft-segment length", Macromolecules, 22, 3211 (1989).   DOI   ScienceOn
6 T. O. Ahn, S. U. Jung, H. M. Jeong, and S. W. Lee, "Tng, H. M. JePolyurethanes with Mixed Chain Extenders and Mixed Soft Segments", J. Appl. Polym. Sci., 51, 43 (1994).   DOI   ScienceOn
7 S. S. Kim and J. N. Park, "Industrial Application of Polyurethane", Polym. Sci. Technol., 10, 614 (1999).
8 Y. B. Lee, S. H. Choi, and G. H. Choi., "Characteristics of Rigid Polyurethane Foams Blown by HFCs for LNG Storage Tank", KIGAS, 9, 16 (2005).
9 M. Rutkowska, K. Krasowska, A. Heimowska, I. Steinka, and H. Janik, "Degradation of polyurethanes in sea water", Polym. Deg. Stab., 76, 233 (2002).   DOI   ScienceOn
10 K. Kolat, G. Neser, and C. Ozes, "The effect of sea water exposure on the interfacial fracture of some sandwich systems in marine use", Composite Structures, 78, 11 (2007).   DOI   ScienceOn
11 E. Kontou, G. Spathis, M. Niaounakism, and V. Kefalas, "Physical and chemical cross-linking effects in polyurethane elastomers", Collid. Polym. Sci., 268, 636 (1990).   DOI   ScienceOn
12 H C. Jung, S. J. Kang, W. N. Kim, S. B. Kim, Y. B. Lee, and S. H. Hong, "Studies on the Morphology and Thermal Properties of the Polyurethane Synthesized from 4, 4' Diphenylmethane Diisocyanate (MD I) and Polyester Polyol", KIGAS, 2, 59 (1998).
13 H. F. Mark, N. M. Bikales, C. G. Overberger, and G. Menges, "Encyclopedia of Polymer Science and Engineering", John Wiley & Sons, 2nd Ed. 13 (1988).
14 J. H. Saunder and K. C. Frisk, "Polyurethanes; Chemistry and Technology", Interscience Publishers, New York, vol 1 (1964).
15 V. A. Vilensky and Y. S. Lipatov, "A Criterion for Microphase Separation in Segmented Polyurethane and Polyurethane Ureas", Polymer, 35, 3069 (1994).   DOI   ScienceOn
16 G. Woods, "The ICI Polyurethanes Handbook", John Wiley & Sons, 2nd ed., New York (1990).
17 C. Hepburn, "Polyurethane Elastomers", Elsevier Science, New York (1992).
18 S. H. Choi, "Polyol for Polyurethane and Foam", Polym. Sci. Technol., 10, 621 (1999).
19 G. Oertel, "Polyurethane Handbook", chap. 2, Hanser Publisher, New York (1993).