Kinetic analysis of the thermal decomposition of cellulose: The main step of mass loss

Mamleev, Vadim; Bourbigot, Serge; Yvon, Jacques

doi:10.1016/j.jaap.2007.01.013

Cited by 176 publications

(154 citation statements)

References 38 publications

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“…The mean values are given in Table 4. These values are consistent with the depolymerisation of cellulose by transglycosylation [7]. They fall into the range usually given in the literature for pure cellulose To determine the influence of oxygen concentration on the pre-exponential factor, ln A' was calculated in function to by using Eq.…”

Section: Identification Of the Kinetic Schemesupporting

confidence: 81%

“…Between 308 and 342°C (depending on the heating rate), the most significant mass loss occurs. It corresponds to the depolymerization of cellulose [1,4,7,10]. Increasing oxygen content from 0 to 21% shifts the maximum of this stage to lower temperatures and raises the maximum DTG ( Table 2).…”

Section: Thermal Decomposition Characteristicsmentioning

confidence: 99%

“…The decomposition kinetics of cellulose-based materials has been extensively investigated. However, most of them have either studied their pyrolysis [1][2][3][4][5][6] or combustion [7][8]. Few studies have examined simultaneously the thermal degradation of these materials in inert and oxidizing atmosphere.…”

Section: Introductionmentioning

confidence: 99%

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Influence of oxygen concentration on the kinetics of cellulose wadding degradation

2011

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The kinetics of thermal decomposition of cellulose wadding was investigated from TG-MS experiments. Different oxygen concentrations in the atmosphere and several heating rates were used to study the influence of oxygen concentration on the mass loss of the sample and on the emission of gases. A shift and an amplitude variation of the DTG curves as well as an increase of the emission of gases such as CO and CO 2 were observed. Then, a kinetic model was proposed to predict the mass loss of the cellulose wadding. Three stages were considered: the cellulose pyrolysis, the char oxidation and the decomposition of calcium carbonate. For the pyrolysis, the kinetic parameters were expressed according to the partial pressure of oxygen. For the char oxidation, a power law was used to account for the influence of oxygen whereas the other kinetic parameters were considered constant regardless of oxygen concentration. The decomposition of calcium carbonate was modelled by a first order influenced by the pressure of CO 2 .

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Section: Identification Of the Kinetic Schemesupporting

confidence: 81%

Section: Thermal Decomposition Characteristicsmentioning

confidence: 99%

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Influence of oxygen concentration on the kinetics of cellulose wadding degradation

2011

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“…[1][2][3][4][5] Addition of flame retardants to polymers increases their flame resistance but also changes kinetics of decomposition which has been in focus of many papers. [6][7][8][9][10] The kinetic modelling of the decomposition is crucial for an accurate prediction of the materials behaviour under different working conditions. [11][12][13][14] Therefore, the kinetic analysis also provides some understanding of the mechanism of the reaction under study.…”

Section: Introductionmentioning

confidence: 99%

Kinetic Study of Thermal Degradation of High-impact Polystyrene Nanocomposites with Different Flame Retardants using Isoconversional and Model Fitting Methods

Katančić¹,

Grčić²,

Hrnjak-Murgić³

2017

Croat. Chem. Acta

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The non-isothermal degradation of pure high-impact polystyrene (HIPS) and flame retarded HIPS nanocomposites was investigated in the temperature range 25-550 °C at four heating rates in an inert atmosphere. Three different phosphate and polyphosphate based flame retardants were used, while nanosilica and montmorillonite clay were used as nanofillers. Kinetic analysis was performed using isoconversional and model fitting non-linear regression method. Activation energy (Ea) was determined by isoconversional methods of Friedman and KissingerAkahira-Sunose while true kinetic triplets (Ea, A, f(α)) were determined by one step and two-step non-linear regression with various reactions mechanisms. It was found that flame retarded samples exhibit complex degradation which cannot be satisfactorily described by single reaction model fitting. Instead, when each distinctive degradation step was modelled individually it was possible to obtain good fit with Reaction order and Avrami-Erofeev proposed mechanisms while the same was not possible for Diffusion and Autocatalytic mechanisms.

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“…The kinetic modelling of the decomposition process plays a central role in many of those studies, being crucial for an accurate prediction of the materials behavior under different working conditions [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. A precise prediction requires knowledge of the so-called kinetic triplet, namely, the activation energy, the frequency factor, and the kinetic model, through the conversion function, f(α).…”

Section: Introductionmentioning

confidence: 99%

PLA-OMMT nanocomposites manufactured by reactive extrusion

Carrasco¹,

Santana²,

Cailloux³

et al. 2017

Biodegradable Polymers: Recent Developments and New Perspectives

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Kinetic analysis of the thermal decomposition of cellulose: The main step of mass loss

Cited by 176 publications

References 38 publications

Influence of oxygen concentration on the kinetics of cellulose wadding degradation

Influence of oxygen concentration on the kinetics of cellulose wadding degradation

Kinetic Study of Thermal Degradation of High-impact Polystyrene Nanocomposites with Different Flame Retardants using Isoconversional and Model Fitting Methods

PLA-OMMT nanocomposites manufactured by reactive extrusion

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