✦ LIBER ✦

Detecting Mechanochemical Degradation of Nitrocellulose by Combining Dynamic Mechanical Analysis with Mass Spectrometry

✍ Scribed by Sergey Vyazovkin; Ion Dranca; Anthony J. Lang

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 133 KB
Volume: 26
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200400504

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Summary: Dynamic mechanical analysis is combined with mass spectrometry to study nitrocellulose under oscillating strain. At a constant temperature (150–160 °C) and frequency (400–600 Hz) nitrocellulose fractures demonstrating a modulus drop and release of products with m/z: 30 and 44. At linear heating (2 °C · min^−1^) and a frequency of 10–50 Hz similar products are released in two steps, the second of which demonstrates a modulus drop and a temperature increase indicating ignition.

Data for an isothermal dynamic mechanical analysis–mass spectrometry experiment performed at 160 °C.

imageData for an isothermal dynamic mechanical analysis–mass spectrometry experiment performed at 160 °C.

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