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Thermal degradation and flame retardancy of microencapsulated ammonium polyphosphate in rigid polyurethane foam

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Abstract

Microencapsulated ammonium polyphosphate MFAPP or VMFAPP with shell of melamine–formaldehyde or poly (vinyl alcohol)–melamine–formaldehyde resin was prepared by in situ polymerization, respectively. The flame-retardant performance of rigid polyurethane foam (PU) containing MFAPP or VMFAPP was analyzed by limiting oxygen index and UL-94 test. Thermal degradation behaviors of PUAPP, PUMFAPP and PUVMFAPP were studied using TG and TG–FTIR. Above results indicated that VMFAPP and MFAPP have better water resistance and flame retardancy compared with ammonium polyphosphate (APP) in PU composites. Flame-retardant properties of PUMFAPP and PUVMFAPP composites were rarely changed after hot water treatment. Due to better compatibility and the presence of active groups on the surface of APP, microencapsulation demonstrated a positive effect on the mechanical property of PU composites.

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References

  1. Tang Z, Maroto-Valer MM, Andrésen JM, Miller JW, Listemann ML, McDaniel PL, et al. Thermal degradation behavior of rigid polyurethane foams prepared with different fire retardant concentrations and blowing agents. Polymer. 2002;43(24):6471–9.

    Article  CAS  Google Scholar 

  2. Hatakeyama H, Matsumura H, Hatakeyama T. Glass transition and thermal degradation of rigid polyurethane foams derived from castor oil-molasses polyols. J Therm Anal Calorim. 2013;111(2):1545–52. doi:10.1007/s10973-012-2501-5.

    Article  CAS  Google Scholar 

  3. Wang G, Zang Q, Han W. The potential fire risk of rigid polyurethane foam. Fire Sci. Technol. 2013;32(5):469–75.

    CAS  Google Scholar 

  4. Usta N. Investigation of fire behavior of rigid polyurethane foams containing fly ash and intumescent flame retardant by using a cone calorimeter. J Appl Polym Sci. 2012;124:372–3382. doi:10.1002/app.3535210.1002/app.

    Article  Google Scholar 

  5. Awad WH, Wilkie CA. Further study on the flammability of polyurea: the effect of intumescent coating and additive flame retardants. Polym Adv Technol. 2011;22(8):1297–304. doi:10.1002/pat.1963.

    Article  CAS  Google Scholar 

  6. Wu K, Zhang Y, Hu W, Lian J, Hu Y. Influence of ammonium polyphosphate microencapsulation on flame retardancy, thermal degradation and crystal structure of polypropylene composite. Compos Sci Technol. 2013;81:17–23. doi:10.1016/j.compscitech.2013.03.018.

    Article  CAS  Google Scholar 

  7. Chen L, Wang Y-Z. A review on flame retardant technology in China. Part I: development of flame retardants. Polym Adv Technol. 2009;21:1–26. doi:10.1002/pat.1550.

    Google Scholar 

  8. Chen XL, Jiang YF, Jiao CM. Synergistic effects between hollow glass microsphere and ammonium polyphosphate on flame-retardant thermoplastic polyurethane. J Therm Anal Calorim. 2014;117(2):857–66. doi:10.1007/s10973-014-3831-2.

    Article  CAS  Google Scholar 

  9. Wu K, Song L, Wang Z, Hu Y. Microencapsulation of ammonium polyphosphate with PVA-melamine-formaldehyde resin and its flame retardance in polypropylene. Polym Adv Technol. 2008;19(12):1914–21. doi:10.1002/pat.1231.

    Article  CAS  Google Scholar 

  10. Tang Q, Wang B, Shi Y, Song L, Hu Y. Microencapsulated ammonium polyphosphate with glycidyl methacrylate shell: application to flame retardant epoxy resin. Ind Eng Chem Res. 2013;52(16):5640–7. doi:10.1021/ie302591r.

    Article  CAS  Google Scholar 

  11. Qiu XL, Lu LX, Zhang ZX, Tang GY, Song GL. Preparation, thermal property, and thermal stability of microencapsulated n-octadecane with poly(stearyl methacrylate) as shell. J Therm Anal Calorim. 2014;118(3):1441–9. doi:10.1007/s10973-014-4040-8.

    Article  CAS  Google Scholar 

  12. Wu K, Zhang Y-K, Zhang K, Shen M-M, Hu Y. Effect of microencapsulation on thermal properties and flammability performance of epoxy composite. J Anal Appl Pyrolysis. 2012;94:196–201. doi:10.1016/j.jaap.2011.12.009.

    Article  CAS  Google Scholar 

  13. Saihi D, Vroman I, Giraud S, Bourbigot S. Microencapsulation of ammonium phosphate with a polyurethane shell part I: coacervation technique. React Funct Polym. 2005;64(3):127–38. doi:10.1016/j.reactfunctpolym.2005.05.004.

    Article  CAS  Google Scholar 

  14. Nakamura N. Study on ketalization reaction of poly(viny1 alcohol) by ketones. VII. Reaction between poly(viny1 alcohol) and aromatic ketones and behavior of poly(viny1 ketal) in water. J Appl Polym Sci. 1995;57:1145–53.

    Article  CAS  Google Scholar 

  15. Kandelbauer A, Despres A, Pizzi A, Taudes I. Testing by fourier transform infrared species variation during melamine–urea–formaldehyde resin preparation. J Appl Polym Sci. 2007;106(4):2192–7. doi:10.1002/app.26757.

    Article  CAS  Google Scholar 

  16. El-Zaher NA, Osiris WG. Thermal and structural properties of poly(vinyl alcohol) doped with hydroxypropyl cellulose. J Appl Polym Sci. 2005;96(5):1914–23. doi:10.1002/app.21628.

    Article  CAS  Google Scholar 

  17. Li Z, Qu B. Flammability characterization and synergistic effects of expandable graphite with magnesium hydroxide in halogen-free flame-retardant EVA blends. Polym Degrad Stab. 2003;81(3):401–8. doi:10.1016/s0141-3910(03)00123-x.

    Article  CAS  Google Scholar 

  18. Camino G, Grassie N, McNeill IC. Influence of the fire retardant, ammonium polyphosphate, on the thermal degradation of poly(methyl methacrylate). J Polym Sci Polym Chem Ed. 1978;16:95–106.

    Article  CAS  Google Scholar 

  19. Broadbent J, Hirschler M. Red phosphorus as a flame retardant for a thermoplastic nitrogen-containing polymer. Eur Polym J. 1984;20(11):1087–93.

    Article  CAS  Google Scholar 

  20. Kay M, Price A, Lavery I. Review of intumescent materials, with emphasis on melamine formulations. J Fire Retard Chem. 1979;6(2):69–91.

    CAS  Google Scholar 

  21. Qin H, Zhang S, Zhao C, Hu G, Yang M. Flame retardant mechanism of polymer/clay nanocomposites based on polypropylene. Polymer. 2005;46(19):8386–95.

    Article  CAS  Google Scholar 

  22. Chuang F-S. Analysis of thermal degradation of diacetylene-containing polyurethane copolymers. Polym Degrad Stab. 2007;92(7):1393–407.

    Article  CAS  Google Scholar 

  23. Chen X, Huo L, Jiao C, Li S. TG–FTIR characterization of volatile compounds from flame retardant polyurethane foams materials. J Anal Appl Pyrolysis. 2013;100:186–91. doi:10.1016/j.jaap.2012.12.017.

    Article  CAS  Google Scholar 

  24. Wu K, Hu Y, Song L, Lu H, Wang Z. Flame retardancy and thermal degradation of intumescent flame retardant starch-based biodegradable composites. Ind Eng Chem Res. 2009;48(6):3150–7.

    Article  CAS  Google Scholar 

  25. Wu K, Song L, Hu Y, Lu H, Kandola BK, Kandare E. Synthesis and characterization of a functional polyhedral oligomeric silsesquioxane and its flame retardancy in epoxy resin. Prog Org Coat. 2009;65(4):490–7. doi:10.1016/j.porgcoat.2009.04.008.

    Article  CAS  Google Scholar 

  26. Jellinek H, Takada K. Toxic gas evolution from polymers: evolution of hydrogen cyanide from polyurethanes. J Polym Sci Polym Chem Ed. 1977;15(9):2269–88.

    Article  CAS  Google Scholar 

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Acknowledgements

The financial supports from National Natural Science Foundation of China (No. 51003123, No. 51303004), Zhujiang Science & Technology New-star Program of Guangzhou, China (No. 2013J2200016), Integration of Industry, Education and Research of Guangdong Province Project, (2011A091000007) are acknowledged.

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Authors and Affiliations

  1. Key Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, 510650, People’s Republic of China

    Fubin Luo, Kun Wu, Mangeng Lu, Xiaoya Li & Xiaoxiao Guan

  2. University of Chinese Academy of Sciences, Beijing, 100039, People’s Republic of China

    Fubin Luo, Xiaoya Li & Xiaoxiao Guan

  3. School of Energy Resources and Safety, Anhui University of Science and Technology, Huainan, 232001, Anhui, China

    Shibin Nie

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  1. Fubin Luo
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Correspondence to Kun Wu.

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Luo, F., Wu, K., Lu, M. et al. Thermal degradation and flame retardancy of microencapsulated ammonium polyphosphate in rigid polyurethane foam. J Therm Anal Calorim 120, 1327–1335 (2015). https://doi.org/10.1007/s10973-015-4425-3

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  • DOI: https://doi.org/10.1007/s10973-015-4425-3

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