Combustion Characteristics of HTPB-Based Hybrid Rocket Fuels: Using Nickel Oxide as the Polymer Matrix Pyrolysis Catalyst
نویسندگان
چکیده
The slow regression rate induced by the high pyrolysis difficulty has limited application and development of hydroxyl-terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion. Nickel oxide (NiO) shows possibility increasing HTPB-based catalyzing process polymer matrix our previous investigation; hence, this paper studies NiO particles thermal decomposition combustion HTPB fuel grains. DSC/TG test that can intensely decrease stability HTPB, catalytic effect is mainly reflected final stages components. 5 wt% enhances 19.4% 13.7% under an oxygen mass flux 50 kg/m2s 150 kg/m2s, respectively. Further investigation will also cause reduction heat agglomeration at regressing surface while process, improving conductivity, promoting radiative transfer fuels; thus, more additive (5 < [NiO] ≤ 10 wt%) does not lead to a faster fuels. This study demonstrates on for fuels, showing attractive prospects HTPB-containing
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ژورنال
عنوان ژورنال: Aerospace
سال: 2023
ISSN: ['2226-4310']
DOI: https://doi.org/10.3390/aerospace10090800