Browse > Article
http://dx.doi.org/10.12925/jkocs.2007.24.2.4

Application of Isocyanate and Modified Polyester Containing Phosphorous and Chlorine to Crosslinked PU Flame-Retardant Coatings  

Park, Hong-Soo (Department of Chemical Engineering, MyongJi University)
Kim, Song-Hyoung (Department of Chemical Engineering, MyongJi University)
Ahn, Sung-Hwan (Department of Chemical Engineering, MyongJi University)
Yoo, Gyu-Yeol (Department of Chemical Engineering, MyongJi University)
Hahm, Hyun-Sik (Department of Chemical Engineering, MyongJi University)
Publication Information
Journal of the Korean Applied Science and Technology / v.24, no.2, 2007 , pp. 124-139 More about this Journal
Abstract
In order to obtain the maximum flame retardancy with the minimal deterioration of physical properties of PU flame-retardant coatings, chlorine and phosphorous functional groups were introduced into the pre-polymer of modified polyesters. In the first step, the tetramethylene bis(orthophosphate) (TBOP) and neohexanediol dichloroacetate (DCA-adduct) intermediates were synthesized. In the second step, 1,4-butanediol and adipic acid monomers were polymerized with the two kind of intermediates to obtain copolymer. The modified polyesters containing chlorine and phosphorous (ATBA-10C, -20C, and -30C) were synthesized by adjusting the contents of chlorine compound (dichloroacetic acid, 10, 20, 30 wt%) with fixed the content of phosphorous compound (2 wt%). The PU flame-retardant coatings (TTBAH -10C, -20C, and -30C) were prepared using the synthesized ATBAs and HDI-trimer as curing agent at room temperature. The physical properties of PU flame-retardant coatings with chlorine and phosphorous were inferior to those with phosphorous only and the properties were getting worse with increasing chlorine content. Flame retardancy was tested with three methods. With the vertical method, Complete combustion time of ATBAHs were $259^{\sim}347$ seconds, which means that the prepared coatings are good flame-retardant. With the $45^{\circ}$ Meckel burner method, char lengths of the three prepared coatings were less than 2.9 cm, which indicates that the prepared coatings are 1st grade flame retardancy. With the limiting oxygen index (LOI) method, the LOI values of the three prepared coatings were in the range of $30^{\sim}35%$, which proves good flame retardancy of the prepared coatings. From the results of flame retardancy tests of the specimens that contain the same amounts of flame retarding compounds, it was found that the coatings containing both phosphorous and chlorine show higher flame retardancy than the coatings containing phosphorous alone. This indicates that some synergy effect of flame retardancy exists between phosphorous and chlorine.
Keywords
polyurethane; flame-retardant coatings; phosphorous; chlorine;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Y. X. Ou, J. H. Wu, and J. R. Wang, Suliao Keji, 1, 1 (2002)
2 I. M. Yang, S. R. Kim, H. J. Park, H. S. Hahm, J. P. Wu, and H. S. Park, Polymer(Korea), 26(2), 193 (2002)   DOI   ScienceOn
3 K. J. Seo, 'Preparation and Characterization of Polyurethane Flame Retardant Coatings Using Pyrophosphoric-Containing Modified Polyester /TDI-Adduct, M. S. Dissertation, Myongji Univ., Korea (1999)
4 H. J. Lanson, Encyclopedia of Polymer Science and Engineering', 2nd ed., vol. 1, p. 656, John Wiley & Sons, Inc., New York (1985)
5 M. Vayer, C. Serre, N. Boyard, C. Sinturel, and R. Erre, 37(10), 2043 (2002)   DOI   ScienceOn
6 W. C. Kuryla and A. J. Papa, 'Flame Retardancy of Polymeric Meterials', Vol. 4, Marcel Dekker, Inc., New York (1982)
7 P. J. Davies, A. R. Horrocks, and A. Alderson, Fire and Materials, 26(4-5), 235 (2002)
8 D. A. Ward, 'Insulated Fireproofed Barriers or Curtains and Their Preparation', Brit. UK Pat. Appl., 2395461A1 (2004)
9 H. Zhao, Y. Z. Wang, D. Y. Wang, B. Wu, D. Q. Chen, X. L. Wang, and K. K. Yang, Polymer Degradation and Stability. 80(10), 135 (2003)   DOI   ScienceOn
10 L. C. Gupta and A. Dhuldhoya, 'Flame Retardant Polyurethane Systems, and Related Methods and Uses', U. S. Pat. Appl. Publ., 160978Al (2006)
11 I. W. Shim, H. J. Jo, H. S. Park, S. K. Kim, Y.G. Kim, Polymer(Korea), 30(3), 238 (2006)   과학기술학회마을
12 L. H. Tagle and F. R. Diaz, Thermochimica, 200, 281 (1992)   DOI
13 J. Bums, K. U. Voorhis, G. Hairston, and W. Stidham, 'Articles of Enhanced Flammability Resistance', U. S. Pat. Appl, Publ., 287894A1 (2005)
14 H. J. Jo, I. W. Shim, H. S. Park, I. M. Yang, and S. J. Kim, J. Kor. Oil Chem. Soc., 23(3), 252 (2006)   과학기술학회마을
15 S. R. Kim, 'Synthesis of Modified Polyesters Containing Phosphorus/Chlorine and Their Application to PU FlameRetardant Coatings', M. S. Dissertation, Myongji Univ., Yongin, Korea (2003)
16 E. K. Park, I. M. Yang, D. W. Kim, K. H. Hwang, and H. S. Park, Polymer(Korea), 25(3), 391 (2001)
17 J. D. Zech and E. C. Ford, Jr., 'Polyhydroxy Phosphate Esters', U. S. Patent 3,309,427 (1967)
18 S. Aikawa, 'Method for Recycling Halogen-Containing Synthesis Resin Wastes without Generating Dioxins', Jpn, Kokai Tokyo Koho, 210969A2 (2004)
19 L. Castellani, D. Trielli, F. Peruzzotti, and E. Albizzati, 'Self- Extinguishing Cable with Low -Lovel Production of Fumes and Flame- Retardant Composition Used Therein', Eur Pat. Appl., EP 1043733Al (2000)
20 A. E. Garavaglia, C. A. Perkins, and M. D. Powers, 'Coatings at High Bath Concentration and Low Wet Pick-up of Materials Such as Nonwovens Using a Brush Spray Application', Eur. Pat. Appl., EP 594983Al (1994)
21 M. Y. Wang, A. R. Horrocks, S. Horrocks, M. E. Hall, J. S. Pearson, and S. Clegg, J. Fire Science, 18(4), 265 (2000)
22 C. H. jung, H. J. Park, S. R. Kim, J. P. Wu, M. S. Kim, and H. S. Park, Polymer(Korea), 26(2), 200 (2002)
23 Y. Tanaka and T. Morikawa, Kogaku to Kogyo(Osaka japan), 48(10), 387 (1974)
24 J. W. Lyons, J. Fire and Flamm., 1, 302 (1970)
25 H. S. Park, H. J. You, I. W. Shim, H. J. Jo. and H. S. Hahm, Synthesis and Film Evaluation of PU Flame -Retardant Coatings Using Tri -PhosphorousContaining Modified Polyesters, World Congress of Chemical Engineering, 7th Glasgow, United Kingdom, July 10-14, (2005)
26 S. Sato, S. Hisama, and T. Sakakibara, 'Preparation and Purification of N-(a-alkoxyethyl) formarnides', Jpn. Kokai Tokyo Koho 06179644A2 (1994)
27 C. Jama, A. Quede, P. Goundmand, O. Dessaux, M. Le Bras, R. Delobel, S. Bourbigot, J. W. Gilman, and T. Kashiwagi, 'Fire Retardancy and Thermal Stability of Materials Coated by Organosilicon Thin Films Using a Cold Remote Plasma Process', ACS Sympo. Series : Fire and Polymers, 797, 200-213 (2001)
28 J. Wang, Huagong Xinxing Cailiao, 33(10), 21 (2005)
29 H. J. Yoo and H. J. Lee, J. Kor. Fiber Soc., 34(7), 451 (1997)
30 S. Kanayama, K. Katayama, H. Takahashi, and M. Kamihara, 'Purification of Aqueous Acrylamide Solution with Cation Exchanges', Jpn. Kokai Tokyo Koho, 10114731A2 (1998)
31 S. W. Zhu and W. F. Shi, Polymer Degra - dation and Stability, 75(3), 543 (2002)   DOI   ScienceOn
32 W. L. F. Armarego and D. D. Perrin, 'Purification of Laboratory Chemicals', 4th ed., Reed Educational and Professional Pub, Ltd., Oxford (1996)
33 J. Wang, G. Li, S. Yang, and J. Jiang, J. Appl. Polym. Sci., 91(2), 1193 (2004)   DOI   ScienceOn