The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels
The slow regression rate caused by the difficulty of pyrolysis can not meet the practical application requirements of hydroxyl-terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion. Accelerating the decomposition of polymer matrix has become a new method to enhance the regression r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2021-12-01
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| Series: | FirePhysChem |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667134421000559 |
| _version_ | 1828086050364325888 |
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| author | Hongsheng Yu Xiaodong Yu Suhang Chen Wei Zhang Luigi T. DeLuca Ruiqi Shen |
| author_facet | Hongsheng Yu Xiaodong Yu Suhang Chen Wei Zhang Luigi T. DeLuca Ruiqi Shen |
| author_sort | Hongsheng Yu |
| collection | DOAJ |
| description | The slow regression rate caused by the difficulty of pyrolysis can not meet the practical application requirements of hydroxyl-terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion. Accelerating the decomposition of polymer matrix has become a new method to enhance the regression rate of HTPB fuels. For determining the difference of combustion performance between different acetylacetone (acac) complex loaded HTPB-based fuels, Fe(acac)3, Ni(acac)2, and Cu(acac)2 are introduced into the HTPB matrix with 5 wt%, respectively. The experimental results reveal that the acetylacetone complexes can catalyze the pyrolysis of HTPB matrix hence increasing the regression rate of fuel grains: 5 wt% Fe, Ni, and Cu acetylacetone enhance the regression rate of HTPB fuels by 13.8%, 15.5%, and 11.4% at Gox = 50 kg/m2s. And the gap in regression rate between three complex loaded fuels is originated from the influence of many factors such as catalytic effect, combustion heat, and combustion products, etc. This study compares the regression rate of different acetylacetone complex loaded fuels for future catalyst selection, and explains the corresponding combustion mechanism. |
| first_indexed | 2024-04-11T04:49:42Z |
| format | Article |
| id | doaj.art-33303ca2f39b43f4af3c297d0c95c620 |
| institution | Directory Open Access Journal |
| issn | 2667-1344 |
| language | English |
| last_indexed | 2024-04-11T04:49:42Z |
| publishDate | 2021-12-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | FirePhysChem |
| spelling | doaj.art-33303ca2f39b43f4af3c297d0c95c6202022-12-27T04:40:46ZengKeAi Communications Co. Ltd.FirePhysChem2667-13442021-12-0114205211The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuelsHongsheng Yu0Xiaodong Yu1Suhang Chen2Wei Zhang3Luigi T. DeLuca4Ruiqi Shen5Institute of Space Propulsion, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Corresponding authors.Institute of Space Propulsion, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaXi'an Key Laboratory of Special Energy Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, ChinaInstitute of Space Propulsion, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSpace Propulsion Laboratory (SPLab), Department of Aerospace Science and Technology, Politecnico di Milano, Milan, I-20156, ItalyInstitute of Space Propulsion, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Corresponding authors.The slow regression rate caused by the difficulty of pyrolysis can not meet the practical application requirements of hydroxyl-terminated polybutadiene (HTPB)-based fuels in hybrid rocket propulsion. Accelerating the decomposition of polymer matrix has become a new method to enhance the regression rate of HTPB fuels. For determining the difference of combustion performance between different acetylacetone (acac) complex loaded HTPB-based fuels, Fe(acac)3, Ni(acac)2, and Cu(acac)2 are introduced into the HTPB matrix with 5 wt%, respectively. The experimental results reveal that the acetylacetone complexes can catalyze the pyrolysis of HTPB matrix hence increasing the regression rate of fuel grains: 5 wt% Fe, Ni, and Cu acetylacetone enhance the regression rate of HTPB fuels by 13.8%, 15.5%, and 11.4% at Gox = 50 kg/m2s. And the gap in regression rate between three complex loaded fuels is originated from the influence of many factors such as catalytic effect, combustion heat, and combustion products, etc. This study compares the regression rate of different acetylacetone complex loaded fuels for future catalyst selection, and explains the corresponding combustion mechanism.http://www.sciencedirect.com/science/article/pii/S2667134421000559HTPBCatalytic decompositionAcetylacetonate complexesRegression rateHybrid rocket propulsion |
| spellingShingle | Hongsheng Yu Xiaodong Yu Suhang Chen Wei Zhang Luigi T. DeLuca Ruiqi Shen The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels FirePhysChem HTPB Catalytic decomposition Acetylacetonate complexes Regression rate Hybrid rocket propulsion |
| title | The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels |
| title_full | The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels |
| title_fullStr | The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels |
| title_full_unstemmed | The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels |
| title_short | The catalysis effects of acetylacetone complexes on polymer matrix of HTPB-based fuels |
| title_sort | catalysis effects of acetylacetone complexes on polymer matrix of htpb based fuels |
| topic | HTPB Catalytic decomposition Acetylacetonate complexes Regression rate Hybrid rocket propulsion |
| url | http://www.sciencedirect.com/science/article/pii/S2667134421000559 |
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