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Citation: SUN Cai-Ying, HU Shu-Lin, XING Hai-Tao, DONG Chun-Mei, ZHAN Zhao-Shun. Synergistic Effect of Ce₂O₃ in Ammonium Polyphosphate-Pentaeruthritol-Melamine Intumescent Flame Retardant System[J]. Chinese Journal of Applied Chemistry, ;2010, 27(10): 1172-1176. doi: 10.3724/SP.J.1095.2010.90570 shu

Synergistic Effect of Ce₂O₃ in Ammonium Polyphosphate-Pentaeruthritol-Melamine Intumescent Flame Retardant System

Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, Department of Chemistry, Northeast Forestry University, Harbin 150040

Received Date: 28 August 2009
Revised Date: 9 April 2010

The synergistic effect of Ce₂O₃ in ammonium polyphosphate-pentaeruthritol-melamine(APP-PERMA) intumescent flame retardant (IFR) system with ammonium polyphosphate (APP) for acid source,pentaeruthritol(PER) for carbon source and melamine (MA) for gas source was investigated by thermogravimetry analysis(TGA) and Fourier transform infrared spectroscopy(FTIR).It shows that Ce₂O₃ increases the degradation and accelerates the production of inorganic acid during 300~400℃.Ce₂O₃ changes the degradation time of IFR,however,it does not change the process of the degradation.Apparent activation energy analysis shows that Ce₂O₃ increases the apparent activation energy of IFR in the first decompose stage from 65.73 kJ/mol to 73.47 kJ/mol,and reduces it in the second,third and fourth stages from 167.46,135.13 and 141.34 kJ/mol to 85.25,96.08 and 58.18 kJ/mol,respectively.TGA shows that there is a great effect to the residue of IFR in every decompose stage when Ce₂O₃ is added.
- thermal-degradation,
- Ce₂O₃,
- apparent activation energy,
- intumescent flame retardant
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通讯作者: 陈斌, bchen63@163.com

Synergistic Effect of Ce₂O₃ in Ammonium Polyphosphate-Pentaeruthritol-Melamine Intumescent Flame Retardant System