Evaluation of the thermal stability of LA and CMC-LA by dynamic vacuum stability test method

Jian Chao Liu; Yu Tong Jiang; Tong Lai Zhang; Li Yang

doi:10.11943/j.issn.1006-9941.2015.10.019

Evaluation of the thermal stability of LA and CMC-LA by dynamic vacuum stability test method

Jian Chao Liu
, Yu Tong Jiang
, Tong Lai Zhang
, Li Yang^*

^*Corresponding author for this work

School of Mechatronical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The thermal decomposition process of lead azide (LA) and carboxymethylcellulose lead azide (CMC-LA) was studied by dynamic vacuum stability test (DVST) method. The test data were analyzed by differential method. The reaction mechanism function and apparent activation energy of CMC-LA and LA were obtained. The influence rule of sodium carboxymethyl cellulose crystal control agent on the stability and kinetic parameters of the thermal decomposition reaction of LA was analyzed. Results show that in the non-isothermal stage, the mechanism function of the thermal decomposition reaction of LA in the temperature range from 60℃ to 100℃ is the Zhuralev-Lesokin-Tempelman equation, the apparent activation energy(E_a)is 86.53, 42.26, 39.43, 38.09 kJ·mol^-1 and 10.84 kJ·mol^-1, while thermal decomposition mechanism function of CMC-LA in the temperature range from 60℃ to 70℃ is the Avrami-Erofeev equation with E_aof 133.02 kJ·mol^-1 and 41.87 kJ·mol^-1 and thermal decomposition reaction mechanism of CMC-LA in the temperature range from 80℃ to 100℃ is the deceleration type α-t curve with E_aof 43.07, 34.34 kJ·mol^-1 and 33.46 kJ·mol^-1. Addding sodium carboxymethylcellulose changes the reaction mechanism function of LA, leading the gas production of CMC-LA smaller at 60℃ to 70℃, and with a better thermal stability.

Original language	English
Pages (from-to)	1020-1023
Number of pages	4
Journal	Hanneng Cailiao/Chinese Journal of Energetic Materials
Volume	23
Issue number	10
DOIs	https://doi.org/10.11943/j.issn.1006-9941.2015.10.019
Publication status	Published - 25 Oct 2015

Keywords

Apparent activation energy (E)
Carboxymethylcellulose lead azide (CMC-LA)
Dynamic vacuum stability test (DVST)
Kinetic parameters
Lead azide (LA)
Mechanism function
Thermal stability

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10.11943/j.issn.1006-9941.2015.10.019

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@article{ad78f32eb46e485781e6e80e8b1d9b3d,

title = "Evaluation of the thermal stability of LA and CMC-LA by dynamic vacuum stability test method",

abstract = "The thermal decomposition process of lead azide (LA) and carboxymethylcellulose lead azide (CMC-LA) was studied by dynamic vacuum stability test (DVST) method. The test data were analyzed by differential method. The reaction mechanism function and apparent activation energy of CMC-LA and LA were obtained. The influence rule of sodium carboxymethyl cellulose crystal control agent on the stability and kinetic parameters of the thermal decomposition reaction of LA was analyzed. Results show that in the non-isothermal stage, the mechanism function of the thermal decomposition reaction of LA in the temperature range from 60℃ to 100℃ is the Zhuralev-Lesokin-Tempelman equation, the apparent activation energy(Ea)is 86.53, 42.26, 39.43, 38.09 kJ·mol-1 and 10.84 kJ·mol-1, while thermal decomposition mechanism function of CMC-LA in the temperature range from 60℃ to 70℃ is the Avrami-Erofeev equation with Eaof 133.02 kJ·mol-1 and 41.87 kJ·mol-1 and thermal decomposition reaction mechanism of CMC-LA in the temperature range from 80℃ to 100℃ is the deceleration type α-t curve with Eaof 43.07, 34.34 kJ·mol-1 and 33.46 kJ·mol-1. Addding sodium carboxymethylcellulose changes the reaction mechanism function of LA, leading the gas production of CMC-LA smaller at 60℃ to 70℃, and with a better thermal stability.",

keywords = "Apparent activation energy (E), Carboxymethylcellulose lead azide (CMC-LA), Dynamic vacuum stability test (DVST), Kinetic parameters, Lead azide (LA), Mechanism function, Thermal stability",

author = "Liu, \{Jian Chao\} and Jiang, \{Yu Tong\} and Zhang, \{Tong Lai\} and Li Yang",

year = "2015",

month = oct,

day = "25",

doi = "10.11943/j.issn.1006-9941.2015.10.019",

language = "English",

volume = "23",

pages = "1020--1023",

journal = "Hanneng Cailiao/Chinese Journal of Energetic Materials",

issn = "1006-9941",

publisher = "Institute of Chemical Materials, China Academy of Engineering Physics",

number = "10",

}

TY - JOUR

T1 - Evaluation of the thermal stability of LA and CMC-LA by dynamic vacuum stability test method

AU - Liu, Jian Chao

AU - Jiang, Yu Tong

AU - Zhang, Tong Lai

AU - Yang, Li

PY - 2015/10/25

Y1 - 2015/10/25

N2 - The thermal decomposition process of lead azide (LA) and carboxymethylcellulose lead azide (CMC-LA) was studied by dynamic vacuum stability test (DVST) method. The test data were analyzed by differential method. The reaction mechanism function and apparent activation energy of CMC-LA and LA were obtained. The influence rule of sodium carboxymethyl cellulose crystal control agent on the stability and kinetic parameters of the thermal decomposition reaction of LA was analyzed. Results show that in the non-isothermal stage, the mechanism function of the thermal decomposition reaction of LA in the temperature range from 60℃ to 100℃ is the Zhuralev-Lesokin-Tempelman equation, the apparent activation energy(Ea)is 86.53, 42.26, 39.43, 38.09 kJ·mol-1 and 10.84 kJ·mol-1, while thermal decomposition mechanism function of CMC-LA in the temperature range from 60℃ to 70℃ is the Avrami-Erofeev equation with Eaof 133.02 kJ·mol-1 and 41.87 kJ·mol-1 and thermal decomposition reaction mechanism of CMC-LA in the temperature range from 80℃ to 100℃ is the deceleration type α-t curve with Eaof 43.07, 34.34 kJ·mol-1 and 33.46 kJ·mol-1. Addding sodium carboxymethylcellulose changes the reaction mechanism function of LA, leading the gas production of CMC-LA smaller at 60℃ to 70℃, and with a better thermal stability.

AB - The thermal decomposition process of lead azide (LA) and carboxymethylcellulose lead azide (CMC-LA) was studied by dynamic vacuum stability test (DVST) method. The test data were analyzed by differential method. The reaction mechanism function and apparent activation energy of CMC-LA and LA were obtained. The influence rule of sodium carboxymethyl cellulose crystal control agent on the stability and kinetic parameters of the thermal decomposition reaction of LA was analyzed. Results show that in the non-isothermal stage, the mechanism function of the thermal decomposition reaction of LA in the temperature range from 60℃ to 100℃ is the Zhuralev-Lesokin-Tempelman equation, the apparent activation energy(Ea)is 86.53, 42.26, 39.43, 38.09 kJ·mol-1 and 10.84 kJ·mol-1, while thermal decomposition mechanism function of CMC-LA in the temperature range from 60℃ to 70℃ is the Avrami-Erofeev equation with Eaof 133.02 kJ·mol-1 and 41.87 kJ·mol-1 and thermal decomposition reaction mechanism of CMC-LA in the temperature range from 80℃ to 100℃ is the deceleration type α-t curve with Eaof 43.07, 34.34 kJ·mol-1 and 33.46 kJ·mol-1. Addding sodium carboxymethylcellulose changes the reaction mechanism function of LA, leading the gas production of CMC-LA smaller at 60℃ to 70℃, and with a better thermal stability.

KW - Apparent activation energy (E)

KW - Carboxymethylcellulose lead azide (CMC-LA)

KW - Dynamic vacuum stability test (DVST)

KW - Kinetic parameters

KW - Lead azide (LA)

KW - Mechanism function

KW - Thermal stability

UR - https://www.scopus.com/pages/publications/84946113827

U2 - 10.11943/j.issn.1006-9941.2015.10.019

DO - 10.11943/j.issn.1006-9941.2015.10.019

M3 - Article

AN - SCOPUS:84946113827

SN - 1006-9941

VL - 23

SP - 1020

EP - 1023

JO - Hanneng Cailiao/Chinese Journal of Energetic Materials

JF - Hanneng Cailiao/Chinese Journal of Energetic Materials

IS - 10

ER -

Evaluation of the thermal stability of LA and CMC-LA by dynamic vacuum stability test method

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Keywords

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