Study on the Melting Process of Nitrocellulose by Thermal Analysis Method

N. Binke; L. Rong; C. Xianqi; W. Yuan; Hu Rongzu; Y. Qingsen

doi:10.1023/a:1010138827699

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Journal of Thermal Analysis and Calorimetry

Volume/Issue:: Volume 58: Issue 2

Study on the Melting Process of Nitrocellulose by Thermal Analysis Method

Authors: N. Binke, L. Rong³, C. Xianqi², W. Yuan², Hu Rongzu², and Y. Qingsen¹

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¹ Zhejiang University Department of Chemistry Hangzhou 310027 P. R. China Hangzhou 310027 P. R. China
² Xian Modern Chemistry Research Institute Xian 710065 P. R. China Xian 710065 P. R. China
³ Nanchang University Department of Food Engineering Nanchang 330047 P. R. China Nanchang 330047 P. R. China

DOI:: https://doi.org/10.1023/a:1010138827699

Page Count:: 249–256

Publication Date:: 25 Nov 1999

Online Publication Date:: 25 Oct 2004

Article Category:: Research Article

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Abstract

The melting process of NC is studied by using modulated differential scanning calorimetry (MDSC) technique, the microscope carrier method for measuring the melting point and the simultaneous device of the solid reaction cell in situ/RSFT-IR. The results show that the endothermic process in the MDSC curve is reversible. It is caused by the phase change from solid to liquid of the mixture of initial NC, decomposition partly into condensed phase products. The values of the melting point, melting enthalpy (H_m), melting entropy (S_m), the enthalpy of decomposition (H_dec) and the heat-temperature quotient (S_dec) obtained by the MDSC curve of NC at a heating rate of 10 K min^–1 are 476.84 K, 205.6 J g^–1, 0.4312 J g^–1 K^–1, –2475.0 J g^–1 and –5.242 Jg^–1K^–1, respectively. The MDSC results of NC with different nitrogen contents show that with increasing the nitrogen content in NC, the absolute values of H_m, S_m, H_dec and S_dec increase.