Acúmulo de cargas elétricas em propelente sólido compósito com matriz de polibutadieno líquido hidroxilado
| Autor: | Koshun Iha, Jose A. Rocco, Gabriela Knippelberg B. Manea, Silvio Manea |
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| Jazyk: | portugalština |
| Rok vydání: | 2014 |
| Předmět: |
Propellant
Materials science Composite number electrostatic discharge chemistry.chemical_element General Chemistry composite solid propellant Ammonium perchlorate law.invention Ignition system lcsh:Chemistry chemistry.chemical_compound chemistry Hydroxyl-terminated polybutadiene Chemical engineering lcsh:QD1-999 Aluminium law Electrical resistivity and conductivity static-charge accumulation Solid-fuel rocket |
| Zdroj: | Química Nova v.37 n.1 2014 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ Química Nova, Vol 37, Iss 1, Pp 27-32 (2014) Química Nova, Volume: 37, Issue: 1, Pages: 27-32, Published: 2014 |
| Popis: | Composite solid propellants prepared with HTPB prepolymer - Hydroxyl Terminated Polybutadiene, AP - Ammonium Perchlorate as oxidizer and aluminum particles as an additive metal, have characteristics of high electrical resistivity. The loading process of the polymer matrix did not obtain homogeneity, resulting in clusters, mainly of metal particles. The effect of clustering in the composite was studied and observed experimentally, and this effect was one of the factors explaining the phenomenon of electrical charging of the composite. This electrical potential, when discharged abruptly, can generate an electric spark with sufficient energy for sustained ignition of a solid rocket motor. |
| Databáze: | OpenAIRE |
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