Surface Studies of Plastic-Bonded PETN and RDX by X-Ray Photoelectron Spectroscopy (XPS) And Ion-Scattering Spectroscopy (ISS)

摘要

Surface structures of plastic bonded PETN and RDX were studied by high resolution X-Ray Photoelectron Spectroscopy (XPS) and Ion Scattering Spectroscopy (ISS). The coating material is a copolymer of vinyl chloride and chlorotrifluoroethylene. Specimens with 6 wt % of the coating on RDX and 4 wt % on PETN were used in these studies. High resolution elemented XPS spectra of F 1s, N 1s, C 1s, and Cl 2p indicate that the surface of coated RDX (PBX-9407) is covered and the coating film is thicker than 100A; the results with coated PETN (LX-16) show the surface layer to be thinner than 100A. exp 3 He exp + ISS data on LX-16 suggest that the coating on PETN is not uniform and is, in fact, absent in some regions. (ERA citation 06:035396)