Electrospray Preparation and Properties of RDX/F2604 Composites

Characterization and Properties of F2602/GAP/CL-20 Energetic Fibers with High Energy and Low Sensitivity Prepared by the Electrospinning Method

“…The fibers prepared by the electrospinning method generally have a diameter ranging from a few nanometers to a few micrometers, which not only have the advantages of small size and high specific surface area, but also have the characteristics of good mechanical stability, small pore diameter, high porosity, and good fiber continuity . For example, using an electrostatic spinning device, Yan et al prepared CL-20 microspheres, Luo et al prepared NC/GAP/nano-LLM-105 nanofibers, Yao et al prepared RDX/F 2604 composites, Tianhong Zhou et al prepared F 2604 /AP composites, and Zhang et al investigated the effect of spinning parameters on the preparation of polyvinylidene fluoride (PVDF). Fluoroelastomers have the characteristics of heat resistance, oil resistance, high-temperature resistance, and good chemical stability, which make it an indispensable material for application in modern aviation, missiles, and rockets.…”

Preparation of Core-Shell-Structured RDX@PVDF Microspheres with Improved Thermal Stability and Decreased Mechanical Sensitivity

“…Recently, the main coating materials employed to reduce sensitivity of RDX have included Viton (dipolymers of hexafluoropropylene and vinylidene fluoride) [ 9 ], DAAF (3,3′-diamino-4,4′-azoxyfurazan) [ 10 ], F2604 (FE2604-2, a kind of fluoro-rubber) [ 11 ], PMMA (polymethyl methacrylate) [ 12 ], MUF (melamine-urea-formaldehyde) [ 13 ], and NC [ 14 , 15 , 16 , 17 ]. Jia et al [ 14 ] fabricated honeycomb-like structured nanoparticles in which partial RDX crystals were encapsulated in PMMA-PVA (polymethylmethacrylate-polyvinyl acetate) coating, manifested that PMMA could effectively improve the thermal performance of RDX.…”

“…Jia et al [ 14 ] fabricated honeycomb-like structured nanoparticles in which partial RDX crystals were encapsulated in PMMA-PVA (polymethylmethacrylate-polyvinyl acetate) coating, manifested that PMMA could effectively improve the thermal performance of RDX. Yao et al [ 11 ] successfully prepared RDX/F2604 composite particles by electrospray assembly technology, which possess lower impact sensitivity and friction sensitivity compared with that of raw RDX. In order to increase the heat release of composite particles, aluminum particles are also added to composite particles while covering [ 8 , 18 ].…”

Preparation and Properties of Spherical CL-20 Composites

“…It is meaningful to develop a new method to prepare spherical CL-20 with a consistent morphology and size. Electrospraying, a method used to produce uniform nanometer-sized and micrometer-sized particles, − has been used in the preparation of energetic materials. − Wang et al introduced the electrospray preparation of NC/GAP/sub-micrometer-HNS composite fibers and found that the fibers had a high reactivity and a fast reaction rate. Chen et al assembled Al/CuO and CL-20 into composites with various morphologies by electrospraying and found that the prepared hybrid energetic materials could be readily regulated by constructing various interfacial microstructures to satisfy the broad requirements of energy sources.…”

“…Chen et al assembled Al/CuO and CL-20 into composites with various morphologies by electrospraying and found that the prepared hybrid energetic materials could be readily regulated by constructing various interfacial microstructures to satisfy the broad requirements of energy sources. In our past work, , spherical composites based on 1,3,5-trinitro-1,3,5-triazinane (RDX), RDX/F2604 (fluororubber), RDX/PVAc (polyvinyl acetate), and RDX/PVB (polyvinyl butyral) were prepared by an electrospray method.…”