Effect of bismuth-containing catalysts on HTPB curing kinetics

Ya Peng Ou; Shuang Jun Chang; Bai Lei Zhang

doi:10.11943/j.issn.1006-9941.2015.06.012

Effect of bismuth-containing catalysts on HTPB curing kinetics

Ya Peng Ou, Shuang Jun Chang^*, Bai Lei Zhang

^*Corresponding author for this work

North University of China

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

8 Citations (Scopus)

Abstract

Effect of triphenyl bismuth(TPB)and tri (exhoxyphenyl) bismuthine(TEPB) on kinetics of hydroxyl terminated polybutadiene-toluene diisocyanate(HTPB-TDI) curing reaction were studied by non-isothermal differential scanning calorimetry(DSC). Characteristic temperature of curing systems were measured for calculating kinetic parameters by Kissinger and Crane method and the curing reaction kinetic equations was established. Results show that catalysts decrease the curing temperature and shorten the curing temperature gradient. Activation energy(E_a) of uncatalyzed HTPB-TDI curing system is 51.29 kJ·mol^-1, the E_a of HTPB-TDI are decreased to 46.43 kJ·mol^-1 and 40.14 kJ·mol^-1 by using TPB and TEPB. Both catalysts lower reaction temperature and curing time through decreasing activation energy of curing reaction and accelerating reaction rate. The reaction rate constant value of HTPB-TDI catalyzed by TEPB at 34℃ is similar to that of HTPB-TDI catalyzed by TPB at 50℃, indicating that the catalytic activity of TEPB is higher than that of TPB and it's available for ambient catalyst.

Original language	English
Pages (from-to)	568-572
Number of pages	5
Journal	Hanneng Cailiao/Chinese Journal of Energetic Materials
Volume	23
Issue number	6
DOIs	https://doi.org/10.11943/j.issn.1006-9941.2015.06.012
Publication status	Published - 25 Jun 2015
Externally published	Yes

Keywords

Catalyst
Curing kinetics
Hydroxyl-terminated polybutadiene(HTPB)
Thermal analysis

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10.11943/j.issn.1006-9941.2015.06.012

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title = "Effect of bismuth-containing catalysts on HTPB curing kinetics",

abstract = "Effect of triphenyl bismuth(TPB)and tri (exhoxyphenyl) bismuthine(TEPB) on kinetics of hydroxyl terminated polybutadiene-toluene diisocyanate(HTPB-TDI) curing reaction were studied by non-isothermal differential scanning calorimetry(DSC). Characteristic temperature of curing systems were measured for calculating kinetic parameters by Kissinger and Crane method and the curing reaction kinetic equations was established. Results show that catalysts decrease the curing temperature and shorten the curing temperature gradient. Activation energy(Ea) of uncatalyzed HTPB-TDI curing system is 51.29 kJ·mol-1, the Ea of HTPB-TDI are decreased to 46.43 kJ·mol-1 and 40.14 kJ·mol-1 by using TPB and TEPB. Both catalysts lower reaction temperature and curing time through decreasing activation energy of curing reaction and accelerating reaction rate. The reaction rate constant value of HTPB-TDI catalyzed by TEPB at 34℃ is similar to that of HTPB-TDI catalyzed by TPB at 50℃, indicating that the catalytic activity of TEPB is higher than that of TPB and it's available for ambient catalyst.",

keywords = "Catalyst, Curing kinetics, Hydroxyl-terminated polybutadiene(HTPB), Thermal analysis",

author = "Ou, {Ya Peng} and Chang, {Shuang Jun} and Zhang, {Bai Lei}",

year = "2015",

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doi = "10.11943/j.issn.1006-9941.2015.06.012",

language = "English",

volume = "23",

pages = "568--572",

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T1 - Effect of bismuth-containing catalysts on HTPB curing kinetics

AU - Ou, Ya Peng

AU - Chang, Shuang Jun

AU - Zhang, Bai Lei

PY - 2015/6/25

Y1 - 2015/6/25

N2 - Effect of triphenyl bismuth(TPB)and tri (exhoxyphenyl) bismuthine(TEPB) on kinetics of hydroxyl terminated polybutadiene-toluene diisocyanate(HTPB-TDI) curing reaction were studied by non-isothermal differential scanning calorimetry(DSC). Characteristic temperature of curing systems were measured for calculating kinetic parameters by Kissinger and Crane method and the curing reaction kinetic equations was established. Results show that catalysts decrease the curing temperature and shorten the curing temperature gradient. Activation energy(Ea) of uncatalyzed HTPB-TDI curing system is 51.29 kJ·mol-1, the Ea of HTPB-TDI are decreased to 46.43 kJ·mol-1 and 40.14 kJ·mol-1 by using TPB and TEPB. Both catalysts lower reaction temperature and curing time through decreasing activation energy of curing reaction and accelerating reaction rate. The reaction rate constant value of HTPB-TDI catalyzed by TEPB at 34℃ is similar to that of HTPB-TDI catalyzed by TPB at 50℃, indicating that the catalytic activity of TEPB is higher than that of TPB and it's available for ambient catalyst.

AB - Effect of triphenyl bismuth(TPB)and tri (exhoxyphenyl) bismuthine(TEPB) on kinetics of hydroxyl terminated polybutadiene-toluene diisocyanate(HTPB-TDI) curing reaction were studied by non-isothermal differential scanning calorimetry(DSC). Characteristic temperature of curing systems were measured for calculating kinetic parameters by Kissinger and Crane method and the curing reaction kinetic equations was established. Results show that catalysts decrease the curing temperature and shorten the curing temperature gradient. Activation energy(Ea) of uncatalyzed HTPB-TDI curing system is 51.29 kJ·mol-1, the Ea of HTPB-TDI are decreased to 46.43 kJ·mol-1 and 40.14 kJ·mol-1 by using TPB and TEPB. Both catalysts lower reaction temperature and curing time through decreasing activation energy of curing reaction and accelerating reaction rate. The reaction rate constant value of HTPB-TDI catalyzed by TEPB at 34℃ is similar to that of HTPB-TDI catalyzed by TPB at 50℃, indicating that the catalytic activity of TEPB is higher than that of TPB and it's available for ambient catalyst.

KW - Catalyst

KW - Curing kinetics

KW - Hydroxyl-terminated polybutadiene(HTPB)

KW - Thermal analysis

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JF - Hanneng Cailiao/Chinese Journal of Energetic Materials

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ER -

Effect of bismuth-containing catalysts on HTPB curing kinetics

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Keywords

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