Kinetic analysis and self-accelerating decomposition temperature (SADT) of dicumyl peroxide

Lv, Jiayu; Chen, Liping; Chen, Wanghua; Gao, Haisu; Peng, Minjun

doi:10.1016/j.tca.2013.08.029

Cited by 59 publications

(29 citation statements)

References 19 publications

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“…A value of 153.1 kJ

\cdot

mol −1 was found and lead to a second set of parameters, labeled B, still assuming a pseudo first‐order model for the principal peak. This method provides the best fit to experimental data and a heat of reaction

{Δ H}_{2}

of 831 J

\cdot

g −1 (79% of

{Δ H}_{D C P O}

) was found for the principal peak, within the range of

{Δ H}_{D C P O}

reported in . The value of 153.1 kJ

\cdot

mol −1 for the energy of activation is significantly higher than those reported in , between 125 and 139 kJ

\cdot

mol −1 .…”

Section: Resultssupporting

confidence: 64%

“…The set of parameters A considers that 87% of

{Δ H}_{D C P O}

is due to the second peak. The set of parameters A is within the range of values reported in (Table ) and provides a heat of reaction for the principal peak,

{Δ H}_{2}

, of 904 J

\cdot

g −1 , slightly higher than

{Δ H}_{D C P O}

values reported in .

{\overset{α}{true}}_{D C P O} = k_{1} \cdot e^{\frac{- E_{1}}{R T}} \cdot {(1 - ζ - α_{1})}^{n_{1}} + k_{2} \cdot e^{\frac{- E_{2}}{R T}} \cdot {(ζ - α_{2})}^{n_{2}}

…”

Section: Resultsmentioning

confidence: 78%

“…The value of 153.1 kJ

\cdot

mol −1 for the energy of activation is significantly higher than those reported in , between 125 and 139 kJ

\cdot

mol −1 . However Lv et al found a value of energy of activation between 161 and 203 kJ

\cdot

mol −1 using the Friedman isoconvertional method.…”

Section: Resultsmentioning

confidence: 99%

“…This model was already successfully applied to the modeling of DCPO decomposition kinetics with a reaction order close to 1 (cf. section “ DCPO Decomposition” and Table ).…”

Section: Resultsmentioning

confidence: 99%

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Effect of dicumyl peroxide concentration on the polymerization kinetics of a polysilazane system

D׳Elia

Dusserre

Confetto

et al. 2017

Polymer Engineering & Sci

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The effect of dicumyl peroxide (DCPO) concentration on the polymerization kinetics of a polysilazane system has been investigated through DSC analyses. DCPO acts as polymerization initiator by activating the polyaddition of vinyl groups. The overall heat of reaction is found to be a linear function of the DCPO concentration above 1.5 wt%, due to the addition of the heat of fully initiated polymerization and the heat of DCPO decomposition. Below 1.5 wt% of DCPO, the polymerisation of polysilazane is not fully initiated and only part of the reaction occurs. The resulting overall heat of reaction is therefore lower than that provided by the linear law valid for higher concentrations. A two-reaction kinetic model built on this interpretation leads to a satisfactory representation of the DSC analyses performed for each DCPO concentration between 0.1 and 20 wt%. POLYM. ENG. SCI., 58:859-869, 2018.

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“…A value of 153.1 kJ

\cdot

{Δ H}_{2}

of 831 J

\cdot

g −1 (79% of

{Δ H}_{D C P O}

) was found for the principal peak, within the range of

{Δ H}_{D C P O}

reported in . The value of 153.1 kJ

\cdot

mol −1 for the energy of activation is significantly higher than those reported in , between 125 and 139 kJ

\cdot

mol −1 .…”

Section: Resultssupporting

confidence: 64%

“…The set of parameters A considers that 87% of

{Δ H}_{D C P O}

is due to the second peak. The set of parameters A is within the range of values reported in (Table ) and provides a heat of reaction for the principal peak,

{Δ H}_{2}

, of 904 J

\cdot

g −1 , slightly higher than

{Δ H}_{D C P O}

values reported in .

{\overset{α}{true}}_{D C P O} = k_{1} \cdot e^{\frac{- E_{1}}{R T}} \cdot {(1 - ζ - α_{1})}^{n_{1}} + k_{2} \cdot e^{\frac{- E_{2}}{R T}} \cdot {(ζ - α_{2})}^{n_{2}}

…”

Section: Resultsmentioning

confidence: 78%

“…The value of 153.1 kJ

\cdot

mol −1 for the energy of activation is significantly higher than those reported in , between 125 and 139 kJ

\cdot

mol −1 . However Lv et al found a value of energy of activation between 161 and 203 kJ

\cdot

mol −1 using the Friedman isoconvertional method.…”

Section: Resultsmentioning

confidence: 99%

“…This model was already successfully applied to the modeling of DCPO decomposition kinetics with a reaction order close to 1 (cf. section “ DCPO Decomposition” and Table ).…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Effect of dicumyl peroxide concentration on the polymerization kinetics of a polysilazane system

D׳Elia

Dusserre

Confetto

et al. 2017

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…Hence for runs performed at different heating rates, βi, Af(α) will be constant at a fixed conversion degree, α [11]. By measuring the temperature, T and the reaction rate, dα/dt, at the fixed conversion degree, α, for all experiments performed at different heating rates, the activation energy can be calculated from the slope of the representation of ln(dα/dt)α,i vs 1/Tα,i whereas from the intercept ln(Af(α)k0) is obtained [12][13][14][15][16][17][18][19][20][21][22]. Whilst this differential method does not employ any mathematical approximation, as in the case of other integral methods, it can be considered as more accurate than the integral ones.…”

Section: Introductionmentioning

confidence: 99%

Friedman and n-reaction order methods applied to pine needles and polyurethane thermal decompositions

Font

Garrido

2018

Thermochimica Acta

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The Friedman method is applied to two processes: flexible polyurethane foam (PU) pyrolysis and pine needle combustion, considering two types of runs: dynamic and dynamic + isothermal. In both cases, the TG and DTG runs are taken into account. For both materials, the Friedman method is applied twice: one considering only the dynamic runs and the other considering all runs, dynamic and dynamic + isothermal runs. Different expressions for fitting the variation of the apparent activation energy and the pre-exponential function have been obtained and used to simulate the experimental results. The simulated results are compared with the experimental ones and with those simulated with the n-reaction order models. From the discussion carried out, it has been deduced that the Friedman method is valid when taking into account all the experimental data obtained in different operating conditions and after testing that the simulated results are close to the experimental ones.

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Superior Thermostability, Good Detonation Properties, Insensitivity, and the Effect on the Thermal Decomposition of Ammonium Perchlorate for a New Solvent‐Free 3D Energetic Pb^II‐MOF

Yang

Zhang

et al. 2017

Chemistry A European J

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A new solvent-free energetic MOF, [Pb(HBTI)] (1) (H BTI=4,5-bis(1H-tetrazole)-1H-imidazole), has been synthesized under hydrothermal and acidic conditions. It was characterized by elemental analysis, IR, thermogravimetric, differential scanning calorimetry (DSC) and SEM. Single crystal X-ray diffraction analysis revealed that 1 features a rigid 3D framework architecture free of solvent molecules. Thermal analysis demonstrated that the thermostability of 1 was up to 325 °C. Non-isothermal kinetic and apparent thermodynamic parameters of exothermic decomposition process of 1 were determined by Kissinger's and Ozawa's methods. Through oxygen-bomb combustion calorimetry, the standard molar enthalpy of formation of 1 was determined. The calculated detonation properties (heat of detonation, detonation velocity and detonation pressure) and sensitivity tests of 1 were carried out. In addition, 1 was explored as combustion promoter to accelerate the thermal decompositions of ammonium perchlorate (AP) by differential scanning calorimetry. Experimental results indicated that 1 possesses potential application prospects in the field of explosives and propellants.

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Kinetic analysis and self-accelerating decomposition temperature (SADT) of dicumyl peroxide

Cited by 59 publications

References 19 publications

Effect of dicumyl peroxide concentration on the polymerization kinetics of a polysilazane system

Effect of dicumyl peroxide concentration on the polymerization kinetics of a polysilazane system

Friedman and n-reaction order methods applied to pine needles and polyurethane thermal decompositions

Superior Thermostability, Good Detonation Properties, Insensitivity, and the Effect on the Thermal Decomposition of Ammonium Perchlorate for a New Solvent‐Free 3D Energetic Pb^II‐MOF

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Kinetic analysis and self-accelerating decomposition temperature (SADT) of dicumyl peroxide

Cited by 59 publications

References 19 publications

Effect of dicumyl peroxide concentration on the polymerization kinetics of a polysilazane system

Effect of dicumyl peroxide concentration on the polymerization kinetics of a polysilazane system

Friedman and n-reaction order methods applied to pine needles and polyurethane thermal decompositions

Superior Thermostability, Good Detonation Properties, Insensitivity, and the Effect on the Thermal Decomposition of Ammonium Perchlorate for a New Solvent‐Free 3D Energetic PbII‐MOF

Contact Info

Product

Resources

About

Superior Thermostability, Good Detonation Properties, Insensitivity, and the Effect on the Thermal Decomposition of Ammonium Perchlorate for a New Solvent‐Free 3D Energetic Pb^II‐MOF