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- W2352164805 abstract "The mechanicalal performance of composite modified double-base propellant(DNTF-CMDB,DF) was investigated by an uniaxial tensile strength test.The tensile strength σm and elongation at the maximum stress em for DF propellants were obtained at various temperatures(-40℃,20℃ and 50℃).On the basis of the viscoelastic coefficients Cg1 and Cg2 from DMA tests,the fragility parameters at low temperature of DF propellants were calculated.The results show that DNTF plays a certain plasticizing action on NC in double-base adhesive,reduces the fragility parameters and improves the tenacity at low temperature.The correlations between em values at higher,ambient and lower temperatures and the sums of content ratios m(NG)∶m(NC) and m(DNTF)∶m(NC) appear in DF propellants.The DF propellant with 20% content of DNTF has the maximum values of the em at three temperatures and σm at lower temperature and a minimum value of fragility parameters.The σm values at higher and ambient temperatures are mainly depended on the content ratio m(NC)∶m(NG) for DF propellants.The fragility parameters has relation to the σm at lower temperature for DF propellants." @default.
- W2352164805 created "2016-06-24" @default.
- W2352164805 creator A5062737232 @default.
- W2352164805 date "2010-01-01" @default.
- W2352164805 modified "2023-09-23" @default.
- W2352164805 title "Mechanical Performance of Composite Modified Double-base Propellant with DNTF" @default.
- W2352164805 hasPublicationYear "2010" @default.
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