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Citation: HUANG Nian-Hua, WANG Jian-Qi. Effects of Copper Oxide and Ammonium Polyphosphate on the Thermal Degradation of Polyamide 6[J]. Chinese Journal of Applied Chemistry, ;2003, 20(10): 977-981. shu

Effects of Copper Oxide and Ammonium Polyphosphate on the Thermal Degradation of Polyamide 6

HUANG Nian-Hua ,
WANG Jian-Qi ^,

1.
National Laboratory of Flame Retardant Materials, Beijing Institute of Technology, Beijing 100081

Corresponding author: WANG Jian-Qi,
Received Date: 18 December 2002
Available Online: 25 June 2003

The effects of copper oxide and ammonium polyphosphate(APP) alone and in combination on the thermal degradation PA6 have been studied by TGA and FTIR techniques. The results show that CuO alone could lower the on-set temperature and the maximum rate of mass loss of PA6 on heating, increase the apparent activation energy of thermal decomposition of PA6, induce the scission of the N-alkylamide bond and after wards change the thermal degradation process of PA6. In combination of APP, CuO increases the on-set temperature of PA6 from 278℃ to 316℃. The combination of CuO with APP decreases the activation energy of thermal decomposition of PA6. A chemical interaction is shown to take place between ammonium polyphosphate and PA6 on heating, leading to the decrease of apparent activation energy of PA6 and its degradation mechanism.
- ammonium polyphosphate,
- copper oxide,
- polyamide 6,
- thermal degradation
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