This investigation focuses on the synthesis and characterization of an intumescent flame-retardant (IFR) agent. Three steps are used in the synthesis process. Meanwhile, the structure is characterized by Fourier transform infrared spectroscopy (FTIR), magic-angle spinning nuclear magnetic resonance (MAS-NMR) 13C spectroscopy, and elemental analysis. The addition of this IFR agent in a natural rubber (NR) system leads to an improvement in its flame-retardant (FR) properties. The second part focuses on the evaluation of some characteristics such as FR property, thermal stability, cure characteristics, and tensile properties of IFR/NR systems.
Derouet, D. , Radhakrishnan, N. , Brosse, J.C. and Boccaccio, G. (1994). Phosphorus Modification of Epoxidized Liquid Natural Rubber to Improve Flame Resistance of Vulcanized Rubbers , Journal of Applied Polymer Science, 52(1): 1309–1316 .
2.
Menon, A.R.R. (1997). Flame-retardant Characteristics of Natural Rubber Modified with a Bromo Derivative of Phosphorylated Cashew Nut Shell Liquid , Journal of Fire Sciences, 15(1): 3–13 .
3.
Wang, J.C. , Yang, S.L. , Li, G. and Jiang, J.M. (2003). Synthesis of a New-type Carbonific and its Application in Intumescent Flame-retardant (IFR)/ Polyurethane Coatings , Journal of Fire Sciences, 21(2): 245–266 .
4.
Wang, J.C. , Li, G. , Yang, S.L. and Jiang, J.M. (2004). New Intumescent Flame-retardant Agent: Application to Polyurethane Coatings , Journal of Applied Polymer Science, 91(1): 1193–1206 .
5.
Le Bras, M. , Bugajny, M. and Lefebvre, J. (2000). Use of Polyurethanes as Char-forming Agents in Polypropylene Intumescent Formulations , Polymer International, 49(1): 1115–1124 .
6.
Bourbigot, S. , Le Bras, M. and Bugajny, M. (1998). Intumescence and Polymer Blending: An Approach for Flame Retardancy , NIST Annual Conference, Gaithersburg.
7.
Bourbigot, S. , Le Bras, M. and Delobel, R.J. (1996). Synergistic Effect of Zeolite in an Intumescence Process: Study of the Carbonaceous Structures Using Solid State NMR , Chem. Soc. Faraday Trans., 92(1): 149–158 .
8.
Mamleev, V.Sh. and Gibov, K.M. (1998). In Fire Retardancy of Polymers: The Use of Intumescence, The Royal Chemical Society, Cambridge .
9.
Camino, G. , Costa, L. and Trossarelli, L. (1984). Study of the Mechanism of Intumescence in Fire Retardant Polymers: Part I–Thermal Degradation of Ammonium Polyphosphate–Pentaerythritol Mixtures , Polymer Degradation and Stability, 6(1): 243-243 .
10.
Ou, Y.X. (1998). Property, Synthesis and Application of Novel Phosphorus-Nitrogen Intumescent Flame Retardant Agents , Jiangsu Chemical Industry, 26(3): 6–9 .
11.
Li, Y.R. (1993). Synthesis and Application of Flame-retardant Agent , Modern Chemical Industry, 8: 26–27 .
12.
Zongming, W. , Xianxiang, H. and Dianqing, S. (1982). Useful Analysis of Infrared Spectrum of Polymers, Petroleum Industry Publication, Beijing .
13.
Katritzky, A.R. (1963). Physical Methods in Heterocyclic Chemistry, Academic Press, New York and London .
14.
West, W. (1956). Chemical Applications of Spectroscopy, Rochester Eastman Kodak Company, New York .
15.
Yongcheng, N. (2000). Structural Identification of Organic Compounds and Organic Spectroscopy, Science Publication, Beijing .
16.
Wang, J.C. , Chen, Y.H. and Wang, J.H. (2005). Novel Reinforcing Filler: Application to Natural Rubber (NR) System , Journal of Elastomers and Plastics, 37(2): 169–180 .
17.
Zheng, F. (2003). Properties and Design Application of Rubber Materials, Chemical Industry Press, Beijing .
18.
Wang, J.C. and Chen, Y.H. (2005). Flame-retardant Mechanism Resulting From a New Intumescent System , Journal of Fire Sciences, 23(1): 55–74 .
19.
Ding, W. (2001). Thermal Behavior and Catalysis of APP-PER and PP/APPPER System Using XPS/TGA, Doctoral Dissertation, Beijing University of Science and Technology.
20.
Pagliari, A. , Cicchetti, O. and Bevilacqua, A. (1992). Flame Retardants'92, The Plastics and Rubber Institute, London and New York .
21.
Marchal, A. , Delobel, R. and Le Bras, M. (1994). Effect of Intumescence on Polymer Degradation , Polymer Degradation and Stability, 44(1): 263–272 .
22.
Le Bras, M. , Bourbigot, S. and Delporte, S. (1996). New Intumescent Formulations of Fire-retardant Polypropylene–Discussion of the Free Radical Mechanism of the Formation of Carbonaceous Protective Material during the Thermo-oxidative Treatment of the Additives , Fire and Materials, 20(1): 191-191 .
23.
Zhang, J. , Horrocks, A.R. and Hall, M.E. (1994). The Flammability of Polyacrylonitrile and its Copolymers-IV. The Flame Retardant Mechanism of Polyphosphate , Fire and Materials, 18(1): 307–312 .
24.
Camino, G. , Costa, L. and Trossarelli, L. (1984). Study of the Mechanism of Intumescence in Fire Retardant Polymers: Part I–Thermal Degradation of Ammonium Polyphosphate–Pentaerythritol Mixtures , Polymer Degradation and Stability, 6(1): 243-243 .
25.
Woycheshin, C.A. and Sobolev, I. (1978). In: Handbook of Fillers and Reinforcements for Plastics, Van Nostrand Reinhold Co, New York .
