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Mussel-inspired PTW@PDA composites for developing high-energy gun propellants with reduced erosion and enhanced mechanical strength
- Source :
- Defence Technology, Vol 32, Iss , Pp 675-690 (2024)
- Publication Year :
- 2024
- Publisher :
- KeAi Communications Co., Ltd., 2024.
-
Abstract
- The severe erosion and inadequate mechanical strength are prominent challenges for high-energy gun propellants. To address it, novel PTW@PDA composites was prepared by polydopamine(PDA)-modifying onto potassium titanate whisker(PTW, K2Ti6O13), and after was incorporated into gun propellant as erosion-reducing and mechanical-reinforcing fillers. The interfacial characterizations results indicated that as-prepared PTW@PDA composites exhibits an enhanced surface compatible with propellant matrix, thereby facilitating their dispersion into propellants more effectively than raw PTW materials. Compared to original propellants, PTW@PDA-modified propellants exhibited significant less erosion, with a Ti–K-based protective coating being detected on the eroded steel. And 0.5 wt% and 1.0 wt% addition of PTW@PDA significantly improved impact, compressive and tensile strength of propellants. Despite the inevitably reduction in relative force, PTW@PDA slightly increase propellant burning rate while exerting little adverse impact on propellant dynamic activity. This strategy can provide a promising alternative to develop high-energy gun propellant with less erosion and more mechanical strength.
Details
- Language :
- English
- ISSN :
- 22149147
- Volume :
- 32
- Issue :
- 675-690
- Database :
- Directory of Open Access Journals
- Journal :
- Defence Technology
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.8cd3600f25441da29245771142888a
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.dt.2023.11.018