Thermal behavior of MWCNT/ammonium perchlorate particles

摘要

A novel generation of highly advanced energetic systems depends on carbon nanomaterials (CNMs) such as expanded graphite (EG), carbon nanotubes (CNTs), graphene, and graphene oxide (GO). Carbon nanomaterials (CNMs) has a widely used as an energetic storage and catalysis in energetic material field due to his large surface area and high surface energy .One of the most advantage of (CNMs) is using as carriers of energetic components by coating or encapsulation. This study reports on catalyzed ammonium perchlorate (APC) by MWCNT. MWCNTs were effectively encapsulated with APC particles by using modified fast-crash solvent-antisolvent technique and characterized by scanning electron microscope (SEM) and Energy dispersive X-ray spectrometer (EDX). The catalytic performance of MWCNT on the thermal behavior of ammonium perchlorate (APC) was analyzed by using differential scanning calorimetery (DSC) and thermal gravimetric analysis (TGA). Interestingly, effect of MWCNTs on the thermal decomposition of APC where the results shown that encapsulated APC with 1% MWCNT show significant reductions of the high decomposition temperature from 452.8°C of APC to 390.1°C and MWCNTs offered an increase in total heat release of APC by 130 %. The results confirmed that MWCNTs are a novel catalyzing agent on the thermal decomposition of ammonium perchlorate which has a direct effect on the burning behavior, performance and combustion characteristics of the solid rocket propellants. Ammonium perchlorate. Scanning electron microscopy.