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| Format: | Artículo Open Access |
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Wiley
2025
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| Accès en ligne: | https://onlinelibrary.wiley.com/doi/10.1002/prep.70109 |
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| _version_ | 1867021256760492032 |
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| author | Jessica O. Silva Josiane R. C. Silva Kamila P. Cardoso Milton F. Diniz Márcio Y. Nagamachi Luiz F. A. Ferrão |
| author_facet | Jessica O. Silva Josiane R. C. Silva Kamila P. Cardoso Milton F. Diniz Márcio Y. Nagamachi Luiz F. A. Ferrão Jessica O. Silva Josiane R. C. Silva Kamila P. Cardoso Milton F. Diniz Márcio Y. Nagamachi Luiz F. A. Ferrão |
| collection | Wiley Open Access |
| contents | Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants Jessica O. Silva Josiane R. C. Silva Kamila P. Cardoso Milton F. Diniz Márcio Y. Nagamachi Luiz F. A. Ferrão Propellants, Explosives, Pyrotechnics ABSTRACT Poor adhesion between the oxidizer and the polymeric matrix of composite solid propellants may result in detachment of interfaces upon stress. Bonding agents are applied to increase the mechanical outcome by linking the particles to the binder, distributing the forces more evenly. Isocyanurates have a six‐member‐ring structure with carbonyl groups and hydrocarbon ramifications with hydroxyl, carboxylic acid, or alkene terminations. The interaction of isocyanurates as bonding agents with ammonium perchlorate (AP) is reportedly mediated by hydrogen bonds. The literature does not address the interaction with ammonium dinitramide (ADN). This work focuses on the interaction of ADN with alkene and hydroxyl‐terminated isocyanurates from an experimental and computational approach. Experimentally, the condensed and gas products of the interacting pair were characterized at 60°C after 15 min to 72 h. Also, the use of an alcoholic solution containing the isocyanurate specimens sprayed directly on the particles was tested. The same characterizations for the AP‐isocyanurate pairs were made as references. Computational calculations assessed the interactions between the molecules of interest. Fourier‐transform infrared (FTIR) spectroscopic results indicate that there is no degradation of ADN, while the ADN‐bonding agent spectra present a sum of the bands of the individual components with no further changes or shifts of bands. Optical microscopy corroborates that there is no degradation, and the particles’ shape is maintained. The use of spray to apply the isocyanurates was effective, and FTIR identified the presence of these components on the particles. Computationally calculated infrared spectra indicate that the interaction between the pairs is promoted by hydrogen bonds. 10.1002/prep.70109 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1002/prep.70109 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_prep_70109 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2025 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants Jessica O. Silva Josiane R. C. Silva Kamila P. Cardoso Milton F. Diniz Márcio Y. Nagamachi Luiz F. A. Ferrão Propellants, Explosives, Pyrotechnics Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants Jessica O. Silva Josiane R. C. Silva Kamila P. Cardoso Milton F. Diniz Márcio Y. Nagamachi Luiz F. A. Ferrão Propellants, Explosives, Pyrotechnics ABSTRACT Poor adhesion between the oxidizer and the polymeric matrix of composite solid propellants may result in detachment of interfaces upon stress. Bonding agents are applied to increase the mechanical outcome by linking the particles to the binder, distributing the forces more evenly. Isocyanurates have a six‐member‐ring structure with carbonyl groups and hydrocarbon ramifications with hydroxyl, carboxylic acid, or alkene terminations. The interaction of isocyanurates as bonding agents with ammonium perchlorate (AP) is reportedly mediated by hydrogen bonds. The literature does not address the interaction with ammonium dinitramide (ADN). This work focuses on the interaction of ADN with alkene and hydroxyl‐terminated isocyanurates from an experimental and computational approach. Experimentally, the condensed and gas products of the interacting pair were characterized at 60°C after 15 min to 72 h. Also, the use of an alcoholic solution containing the isocyanurate specimens sprayed directly on the particles was tested. The same characterizations for the AP‐isocyanurate pairs were made as references. Computational calculations assessed the interactions between the molecules of interest. Fourier‐transform infrared (FTIR) spectroscopic results indicate that there is no degradation of ADN, while the ADN‐bonding agent spectra present a sum of the bands of the individual components with no further changes or shifts of bands. Optical microscopy corroborates that there is no degradation, and the particles’ shape is maintained. The use of spray to apply the isocyanurates was effective, and FTIR identified the presence of these components on the particles. Computationally calculated infrared spectra indicate that the interaction between the pairs is promoted by hydrogen bonds. 10.1002/prep.70109 http://creativecommons.org/licenses/by/4.0/ |
| title | Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants |
| topic | Propellants, Explosives, Pyrotechnics |
| url | https://onlinelibrary.wiley.com/doi/10.1002/prep.70109 |