Thermal decomposition kinetics and thermal safety of ANPyO/NBR

doi:10.16265/j.cnki.issn1003-3033.2019.05.011

Abstract

Abstract: In order to study the thermal safety of ANPyO and NBR moulding powder, the ANPyO was improved moldability with NBR by means of the solution-water suspending-distillation method and its thermal behavior was studied by Thermogravimetric-Differential Scanning Calorimeter(TG-DSC)thermal analyzer. The thermal decomposition activation energy and the pre-exponential factor were calculated by Kissinger method, Ozawa method and various integral methods. And the self-accelerating decomposition temperature, the thermal ignition temperature, and the critical temperature of thermal explosion of ANPyO/NBR were calculated. Then the time to ignition of spherical ANPyO/NBR samples with radius of 1m at different supercritical ambient temperatures was calculated. The results show that the moulding powder ANPyO/NBR has good heat resistance and thermal safety performance, and that the thermal safety of ANPyO/NBR is decided by the ambient temperature.

Key words: 2,6-diamino-3,5-dinitropyridine-1-oxide (ANPyO), nitrile butadiene rubber (NBR), thermal safety, ambient temperature, time to ignition

CLC Number:

X937

WANG Yang, HE Zhiwei, GUO Ziru, CHENG Ao, MENG Xiangwu, ZHANG Hong. Thermal decomposition kinetics and thermal safety of ANPyO/NBR[J]. China Safety Science Journal, 2019, 29(5): 62-66.

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