Synthesis and application of novel organo-silicone neutral polymeric bonding agent for pressed PBX
Using acrylonitrile,methyl methacrylate,hydroxyethyl acrylate,y-methacryloxypropyltrimet hoxysilane as polymerization monomers,a series of novel organo-silicone neutral polymeric bonding agents(LBA-315)for pressed polymer bonded explosive(PBX)were prepared by free radical solution polymerization reaction.The structure of the products was confirmed by Fourier transform infrared(FTIR)spectrum,nuclear magnetic resonance hydrogen spectrum(1H-NMR),elemental analysis,inductively coupled plasma emission spectrometer(ICP-OES),gel permeation chromatography(GPC)and so on.The molecular dynamics simulation studies showed that the effect of LBA-315 bonding agent was superior to those of traditional neutral polymeric bonding agent(NPBA)and silane coupling agent y-aminopropyl triethoxysilane(KH550).The X ray photoelectron spectroscopy(XPS)testing results showed that LBA-315 bonding agent had good coating effect on l,3,5-triamino-2,4,6-trinitrobenzene(TATB).The preliminary application studies showed that when the LBA-315 bonding agent was used in the polymer bonded explosive formulations,the ambient temperature tensile strength and the maximum elongation of the explosive grains were improved by 89.3％and 88.2％,respectively.
NETL
NSTL
万方数据
