|Table of Contents|

Influence of Coating on Properties of 2,4,6-Triamino-3,5-dinitropyridine-1-oxide

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2010年05期
Page:
708-712
Research Field:
Publishing date:

Info

Title:
Influence of Coating on Properties of 2,4,6-Triamino-3,5-dinitropyridine-1-oxide
Author(s):
HE Zhi-weiLIU Zu-liang
School of Chemical Engineering,NUST,Nanjing 210094,China
Keywords:
246-triamino-35-dinitropyridine-1-oxide explosives coating structures properties
PACS:
TQ560
DOI:
-
Abstract:
The 2,4,6-Triamino-3,5-dinitropyridine-1-oxide(TNPyO) is coated with fluorine rubber F2311 and nitrile-butadiene rubber(NBR) by means of the solution-water suspending-distillation method.The structures and properties of the TNPyO and coated ones are characterized with Fourier transform infrared(FTIR) spectroscopy,scanning electron microscope,differential scanning calorimetry,thermograimetry,laser particle sizer and impact and friction sensitivity.The results show that the decomposition peak temperatures of the coated TNPyO are reduced 7.5 ℃ and 7.1 ℃ respectively,the decomposition heats are respectively enhanced 66.4 J/g and 19.8 J/g,the decomposition depths are reduced compared with the uncoated TNPyO.It is found that the particles of the TNPyO become bigger.In FTIR spectra,N-H spectral characteristic absorption bands have 3.8 cm-1 and 2.1 cm-1 blue shifts,nitrogen atom in pyridine spectral characteristic absorption band has a 13.5 cm-1 blue shift.The impact sensitivity of the coated TNPyO decreases from 36% to 20% and 18% and the friction sentivity decreases from 30% to 12%and 10%,respectively.

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Last Update: 2012-11-02