Thermal runaway hazard studies for ABVN mixed with acids or alkalines by DSC, TAM III, and VSP2

Liu, Shang-Hao; Chen, Ying-Cyuan; Hou, Hung-Yi

doi:10.1007/s10973-015-4789-4

Cited by 25 publications

(6 citation statements)

References 19 publications

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“…When y = RUS = 19.95, the corresponding T NR was 300.24 K. Substituting T NR into formula (6), it can get the T α was 294.00 K, the SADT temperature of the test sample was 20.85°C. Comparing with the results of the Dewar test, SADT temperature obtained by ARC was conservative.…”

Section: Self-accelerating Decomposition Temperaturementioning

confidence: 99%

“…To ensure the safety of free radical polymerization, many studies have been carried out. [5][6][7][8] Yang et al [9] evaluated the thermal stability parameters of the decomposition reaction of the free radical initiator tert-butyl peroxy-3,5,5-trimethylhexanoate (TBPMH) by Differential Scanning Calorimetry (DSC), and calculated the self-accelerating decomposition temperature (SADT) to provide security parameters for the runaway reaction in the storage and transportation of TBPMH. Tan et al [10] analyzed the thermal decomposition characteristics and the relationship between quality and SADT of benzoyl peroxide, it was found that the SADT gradually decreased with the increased of the packing quality.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Safety Performance Evaluation for Typical Free Radical Polymerization Initiator of Tert‐butyl Peroxypivalate

Liu

et al. 2020

ChemistrySelect

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Tert‐butyl peroxypivalate is a typical free radical polymerization initiator due to the active O−O peroxide group, and it is a thermal instability material. To evaluate the thermal safety of tert‐butyl peroxypivalate, Dewar test, Differential Scanning Calorimetry (DSC) and Accelerating Rate Calorimeter (ARC) were used to study the self‐accelerating decomposition temperature (SADT), thermal performance parameters and kinetic parameters. The results of DSC reveal that the onset decomposition temperature of the initiator was 76.30 °C. The apparent activation energy (Ea) was 91.86 kJ mol−1 by Kissinger method. In ARC test, the onset decomposition temperature was 40.64 °C. The adiabatic temperature of the reaction was 86.68 °C, and the apparent activation energy was 120.14 kJ mol−1. The results of Dewar test show that the SADT of the initiator was 38 °C. The simulated SADT value by thermal analysis software (AKTS) was about 35 °C which was basically consistent with the results of Dewar test.

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Section: Self-accelerating Decomposition Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal Safety Performance Evaluation for Typical Free Radical Polymerization Initiator of Tert‐butyl Peroxypivalate

Liu

et al. 2020

ChemistrySelect

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“…But, despite this diversity of compounds, fully documented experimental studies are mainly focused on a limited number of compounds in the literature [6,28]. For instance, among azo compounds, existing studies on thermal hazards focused on 2,2-azobis(2-methylbutyronitrile) (AMBN) [29], 2,2'-azobis(2,4dimethylvaleronitrile) (ABVN) [30,31] and 2,2′-azobis(isobutyronitrile) (AIBN) [1,[32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

First QSPR models to predict the thermal stability of potential self-reactive substances

Fayet

Knorr

Rotureau

2022

Process Safety and Environmental Protection

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“…In theory, the NN structure readily breaks and releases nitrogen at elevated temperatures. A substantial number of accidents have occurred in the manufacturing or storage processes of chemical agents because of improper coping approaches . 2,2′‐azobis(2‐methylpropionitrile) (AIBN) and 1,1′‐azobis(cyclohexanecarbonitrile) (ABCN) are common azo compounds, which are used as initiators in polymerization because they are easily cleaved and form groups with high activation energy.…”

Section: Introductionmentioning

confidence: 99%

“…Notably, some of these compounds can slowly decompose, even at room temperature, causing fire and explosions as typical autocatalytic reactions. In previous studies, scholars mostly focused on theoretical research of AIBN and ABCN, including some kinetic calculations . However, no one has so far associated its thermal risk with the actual situation.…”

Section: Introductionmentioning

confidence: 99%

Solid thermal explosion of autocatalytic material based on nonisothermal experiments: Multistage evaluations for 2,2′‐azobis(2‐methylpropionitrile) and 1,1′‐azobis(cyclohexanecarbonitrile)

Cao

Pan

et al. 2019

Process Safety Progress

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To achieve the thermal stability characteristics of azo compounds, a method for characterizing the kinetics of the reaction and decomposition for azo compounds based on nonisothermal calorimetric data was explored. Differential scanning calorimetry (DSC) was employed to analyze the thermal decomposition of two azo compounds, 2,2 0 -azobis(2-methylpropionitrile) and 1,1 0 -azobis(cyclohexanecarbonitrile). DSC experiments were performed to acquire the exothermic peak temperature (T p ), exothermic final temperature (T f ), and heat of decomposition (4H d ). Corresponding thermokinetics were calculated using Flynn-Wall-Ozawa method. Moreover, data determined through DSC experiments were utilized to predict the self-accelerating decomposition temperature, control temperature, and emergency temperature. A nonisothermal experiment was performed to investigate the runaway characteristics of azo compounds, the melting behavior that occurred in the decomposition process interfered with thermal analysis. Through dividing the reaction into several stages, multistage evaluations were carried out in the process of our study. During the thermal explosion simulation, the actual packing parameter of 25.0 kg was applied to ensure that the simulation results were more practical. Thermal safety parameters acquired from the simulation results can provide information on loss prevention and facilitated the establishment of an emergency relief system. Highlights• The decomposition process was divided into several stages and considered melting behavior.• A green method contributes to intrinsic safety design.• Solid thermal explosion was simulated. K E Y W O R D Sazo compound, loss prevention, multistage evaluation, self-accelerating decomposition temperature, thermal analysis

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Thermal runaway hazard studies for ABVN mixed with acids or alkalines by DSC, TAM III, and VSP2

Cited by 25 publications

References 19 publications

Thermal Safety Performance Evaluation for Typical Free Radical Polymerization Initiator of Tert‐butyl Peroxypivalate

Thermal Safety Performance Evaluation for Typical Free Radical Polymerization Initiator of Tert‐butyl Peroxypivalate

First QSPR models to predict the thermal stability of potential self-reactive substances

Solid thermal explosion of autocatalytic material based on nonisothermal experiments: Multistage evaluations for 2,2′‐azobis(2‐methylpropionitrile) and 1,1′‐azobis(cyclohexanecarbonitrile)

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