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Abstract  

Complexes of cell–THPC–urea–ADP with transition metal ion Co2+ and lanthanide metal ions such as La3+, Ce4+, Nd3+ and Sm3+ have been prepared. The thermal behavior and smoke suspension of the samples are determined by TG, DTA, DTG and cone calorimetry. The activation energies for the second stage of thermal degradation have been obtained by following Broido equation. Experimental data show that for the complexes of cell–THPC–urea–ADP with the metal ions, the activation energies and thermal decomposition temperatures are higher than those of cell–THPC–urea–ADP, which shows these metal ions can increase the thermal stability of cell–THPC–urea–ADP. Moreover, these lanthanide metal ions can more increase thermal stability of samples than do the transition metal ion Co2+. The cone calorimetry data indicate that the lanthanide metal ions, similar to transition metal Co2+, greatly decrease the smoke, CO and CO2 generation of cell–THPC–urea–ADP, which can be used as smoke suppressants.

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-3910(98)00152-9 . 13. Gao , M , Wu , WH , Wu , FS . Thermal degradation and smoke suspension of cotton cellulose modified with THPC and its lanthanide metal complexes . J Therm Anal Calorim . 2009 ; 98 : 245 – 251 . 10.1007/s10973

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. 18. Gao , M , Wu , WH , Wu , FS 2009 Thermal degradation and smoke suspension of cotton cellulose modified with THPC and its lanthanide metal complexes . J Therm Anal Calorim 98 : 245 – 251 10.1007/s10973

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