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含能材料 2008
ANewAspectofRelationshipsbetweenElectricSparkSensitivityandThermalStabilityofSomePolynitroArenesKeywords: electricsparksensitivity,explosive,thermalstability,polynitroarene Abstract: AnESZKTTVinstrumentofanew,relativelysimpleconstructionhasbeenappliedtodeterminationofelectricsparksensitivityof29polynitroarenes,expressedassparkenergy,EES,requiredfor50percentinitiationprobability.Thethermalstabilitythresholds,Tmax,werecalculatedfromthepublishedArrheniusparametersofmonomolecularthermaldecompositionofthestudiedcompounds,predominantlyobtainedundertheconditionsoftheRussianmanometricmethod.AnapproximaterelationshiphasbeenfoundbetweenthelnEESvaluesandthresholdTmaxvalues.Inthesenseofthisrelationship,thecompoundsstudiedfallintoseveralsubgroups.Thereasonofthesaiddiversificationliesinthedecompositionreactionrateatthetemperatureofonsetoftheirthermaldecomposition.Ithasbeenfoundthatineachsubgroupincreasingthermalstabilityofpolynitroarenesisaccompaniedbyincreasingelectricsparksensitivityofthesesubstances.Thisfactmustbetakenintoaccountifwedealwiththeproblemofelectricsparkenergytransferintothereactioncentreofthemolecule.
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