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《Chinese Journal of Energetic Materials》 2008-01
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Mechanical Properties of NEPE Propellant Containing Two Coated ε-HNIW

MENG Zheng,OU Yu-xiang(School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China)  
ε-HNIW was respectively coated with Impranil DLF polyurethane and melamine-formaldehyde resin by demulsification and in-situ condensation polymerization.The mechanical properties and morphology of NEPE propellants containing the coated ε-HNIW were characterized.The results show that compared with the propellant containing uncoated ε-HNIW,the εm and the εb of the propellant containing ε-HNIW coated with melamine-formaldehyde resin increases by 75.2% and 62.16% respectively,and the εb/εm ratio decreases to 1.03.The dewetting problem is improved significantly,and the ε-HNIW was bonded on the propellant surface firmly.The εm and the εb of the propellant containing ε-HNIW coated with Impranil DLF polyurethane increases a little,the εb/εm ratio is 1.10 and some ε-HNIW crystals shed from the propellant surface.
【Fund】: 总装预研基金项目(12060451867)
【CateGory Index】: V512
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