引用本文:
孙才英, 胡树林, 邢海涛, 董春梅, 展召顺. Ce2O3对APP-PER-MA膨胀阻燃体系热解过程的协效作用[J]. 应用化学,
2010, 27(10): 1172-1176.
doi:
10.3724/SP.J.1095.2010.90570
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
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
Ce2O3对APP-PER-MA膨胀阻燃体系热解过程的协效作用
摘要:
采用热重分析和红外光谱技术研究了氧化铈(Ce2O3)对以聚磷酸铵(APP)为酸源、季戊四醇(PER)为炭源、蜜胺(MA)为气源的经典膨胀型阻燃剂(IFR)热分解性能的影响。结果表明,300~400℃时Ce2O3的存在加快了体系的分解和无机酸的生成速度,改变了IFR热解发生的时间,但是并没有从根本上改变热解过程;Ce2O3的添加使IFR阻燃剂第一阶段的热解活化能由65.73kJ/mol提高至73.47kJ/mol,第二、三、四阶段的热解活化能分别由167.46、135.13、141.34kJ/mol降低至85.25、96.08、58.18kJ/mol,并对IFR分解各阶段残留量有很大影响。
English
Synergistic Effect of Ce2O3 in Ammonium Polyphosphate-Pentaeruthritol-Melamine Intumescent Flame Retardant System
Abstract:
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.
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Key words:
- thermal-degradation
- / Ce2O3
- / apparent activation energy
- / intumescent flame retardant
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