Preparation and Characterization of Metalized JP-10 Gel Propellants with Excellent Thixotropic Performance
| Autor: | Xiaomeng Li Li, Song Jian, Zhang Bao, Anqi Chen, Baohao Zhang Zhang, Xidong Guan Guan |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Propellant Thixotropy Materials science 010304 chemical physics General Chemical Engineering Acetal Supramolecular chemistry General Chemistry 010402 general chemistry 01 natural sciences 0104 chemical sciences Viscosity chemistry.chemical_compound Hydrocarbon chemistry Chemical engineering Rheology 0103 physical sciences Nano Polymer chemistry |
| Zdroj: | Propellants, Explosives, Pyrotechnics. 42:1007-1013 |
| ISSN: | 0721-3115 |
| DOI: | 10.1002/prep.201700161 |
| Popis: | The preparation and characterization of a series of D-gluconic acetal supramolecular organic gelators (Gn) which can form gel with high-energy density hydrocarbon fuel JP-10 are reported. Rheological measurements show G8 gel exhibits strong mechanical strength at a concentration of 2 wt %, while G18 gel has a remarkable yield stress. What's more, JP-10 gels show thixotropy with high viscosity, especially for the G8-based gel, which has an instantaneous recovery ratio. The CGC (critical gelator concentration) of G8 is less than 0.1 wt %, known as a super gelator. More interestingly, G18 can gel JP-10 at room temperature, which is the first example of room temperature gel propellant formed by a supramolecular gelator. Nano accelerants (Al, B) are dispersed into the gel propellant system, which can be stable for months. The presence of 50 nm Al powder in G8-based gel can significantly increase its mechanical strength, yield stress and viscosity, as well as thixotropy. |
| Databáze: | OpenAIRE |
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