Thermal hazard evaluation on spontaneous combustion characteristics of nitrocellulose solution under different atmospheric conditions

Abstract

Nitrocellulose (NC) is widely used in both military and civilian fields. Because of its high chemical sensitivity and low decomposition temperature, NC is prone to spontaneous combustion. Due to the dangerous properties of NC, it is often dissolved in other organic solvents, then stored and transported in the form of a solution. Therefore, this paper took NC solutions (NC-S) with different concentrations as research objects. Under different atmospheric conditions, a series of thermal analysis experiments and different reaction kinetic methods investigated the influence of solution concentration and oxygen concentration on NC-S’s thermal stability. The variation rules of NC-S’s thermodynamic parameters with solution and oxygen concentrations were explored. On this basis, the spontaneous combustion characteristics of NC-S under actual industrial conditions were summarized to put forward the theoretical guidance for the spontaneous combustion treatment together with the safety in production, transportation, and storage.

Thermal Stability Evaluation of T152 Emulsifier on the Modification Influence of Fireworks Propellant

“…The Kissinger method, also known as the maximum method, is one of the basic methods for calculating the apparent activation energy (E a ) of composite materials. According to the Arrhenius kinetic equations, it can be obtained as [23,24]:…”

Nitroselüloz Bazlı Yakıtların Depolama Ömürlerine Ortam Koşullarının Etkisinin İncelenmesi

“…Sıcaklığa ilave olarak nem, titreşim ortamı uygulanarak da hızlı yaşlandırma işlemi yapılmaktadır. Literatür araştırıldığında nitroselülozun farklı ortam koşullarındaki davranışın araştırıldığı sınırlı sayıda çalışmaya ulaşılmaktadır (Chaia et al 2020;Kaur et al 2021;Li et al 2021;Courty et al 2021;Mattar et al 2020;Ergun 2017).…”