Fuel Ratio and Additives Influence on the Combustion Parameters of Novel Polyurethane-based Flares
Year: 2021
Type: article
Abstract: Pyrotechnic compositions using polyurethane as binder were designed to maximize the temperature of combustion and the burn rate. The flares consisted in mixtures of potassium perchlorate/Mg-Al alloy/polyurethane/additives. In order to determine the optimum input ratio that conducts to the most appropriate solution in terms of theoretical amount of heat released, specific volume of gaseous products and chemical composition, Explo5� thermochemical software runs were executed. Further, the temperature of combustion and the burn rate were determined by infrared thermography, while the heat of combustion and the specific volume of gases were obtained using an adiabatic calorimeter coupled with a Julius-Peters volumeter. The fuel ratio was varied in the compositions in order to optimize the combustion, and the addition of chlorinated rubber confirmed a significant enhancement in both parameters.
Source: Materiale Plastice
Authors: Cristiana Epure, Tudor-Viorel Tiganescu, Ovidiu Iorga, Alexandru Marin, Mihail Munteanu, Teodora Zecheru, Andrei Schiopu, Bogdan Pulpea
Institutions: Military Technical Academy, Ministry of National Defence
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
Awards: G1417349332, G6703262589
OpenAlex ID: W3118917694