Kinetic study on aircraft-used polymethyl methacrylate under different oxygen concentration

Lei Wang; Run Dong Li; Ai Min Li; Li Hong Wei; Lei Feng

Kinetic study on aircraft-used polymethyl methacrylate under different oxygen concentration

Lei Wang, Run Dong Li, Ai Min Li, Li Hong Wei, Lei Feng

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

Abstract

The decompositions of aircraft-used polymethyl methacrylate are studied by means of thermogravimetric analysis and differential thermal analysis. Four kinds of oxygen concentrations are used (5%, 10%, 15%, 21%) and heating rates used vary from 15°C/min to 30°C/min. Improved Coats-Redfern method is used to determine the kinetic parameters and Doyle method was used to calculate the decomposition data. The active energy and pre-exponential factor both increase when the oxygen concentration decreases. The active energy is in the range 100-108 kJ/mol and 87-92 kJ/mol at the two heating rates when oxygen concentration decreases, while the pre-exponential factor is in the range (7-35) × 10⁶/s and (0.4-1) × 10⁶/s. The simulation of weight loss process accords with the real weight loss process well.

Original language	English
Pages (from-to)	783-786
Number of pages	4
Journal	Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica
Volume	26
Issue number	6
State	Published - Nov 2005
Externally published	Yes

Keywords

Aircraft-used polymethyl methacrylate
Differential thermal analysis
Improved Coats-Redfern method
Kinetic study
Thermogravemetric analysis

Cite this

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title = "Kinetic study on aircraft-used polymethyl methacrylate under different oxygen concentration",

abstract = "The decompositions of aircraft-used polymethyl methacrylate are studied by means of thermogravimetric analysis and differential thermal analysis. Four kinds of oxygen concentrations are used (5%, 10%, 15%, 21%) and heating rates used vary from 15°C/min to 30°C/min. Improved Coats-Redfern method is used to determine the kinetic parameters and Doyle method was used to calculate the decomposition data. The active energy and pre-exponential factor both increase when the oxygen concentration decreases. The active energy is in the range 100-108 kJ/mol and 87-92 kJ/mol at the two heating rates when oxygen concentration decreases, while the pre-exponential factor is in the range (7-35) × 106/s and (0.4-1) × 106/s. The simulation of weight loss process accords with the real weight loss process well.",

keywords = "Aircraft-used polymethyl methacrylate, Differential thermal analysis, Improved Coats-Redfern method, Kinetic study, Thermogravemetric analysis",

author = "Lei Wang and Li, {Run Dong} and Li, {Ai Min} and Wei, {Li Hong} and Lei Feng",

year = "2005",

month = nov,

language = "英语",

volume = "26",

pages = "783--786",

journal = "Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica",

issn = "1000-6893",

publisher = "AAAS Press of Chinese Society of Aeronautics and Astronautics",

number = "6",

}

TY - JOUR

T1 - Kinetic study on aircraft-used polymethyl methacrylate under different oxygen concentration

AU - Wang, Lei

AU - Li, Run Dong

AU - Li, Ai Min

AU - Wei, Li Hong

AU - Feng, Lei

PY - 2005/11

Y1 - 2005/11

N2 - The decompositions of aircraft-used polymethyl methacrylate are studied by means of thermogravimetric analysis and differential thermal analysis. Four kinds of oxygen concentrations are used (5%, 10%, 15%, 21%) and heating rates used vary from 15°C/min to 30°C/min. Improved Coats-Redfern method is used to determine the kinetic parameters and Doyle method was used to calculate the decomposition data. The active energy and pre-exponential factor both increase when the oxygen concentration decreases. The active energy is in the range 100-108 kJ/mol and 87-92 kJ/mol at the two heating rates when oxygen concentration decreases, while the pre-exponential factor is in the range (7-35) × 106/s and (0.4-1) × 106/s. The simulation of weight loss process accords with the real weight loss process well.

AB - The decompositions of aircraft-used polymethyl methacrylate are studied by means of thermogravimetric analysis and differential thermal analysis. Four kinds of oxygen concentrations are used (5%, 10%, 15%, 21%) and heating rates used vary from 15°C/min to 30°C/min. Improved Coats-Redfern method is used to determine the kinetic parameters and Doyle method was used to calculate the decomposition data. The active energy and pre-exponential factor both increase when the oxygen concentration decreases. The active energy is in the range 100-108 kJ/mol and 87-92 kJ/mol at the two heating rates when oxygen concentration decreases, while the pre-exponential factor is in the range (7-35) × 106/s and (0.4-1) × 106/s. The simulation of weight loss process accords with the real weight loss process well.

KW - Aircraft-used polymethyl methacrylate

KW - Differential thermal analysis

KW - Improved Coats-Redfern method

KW - Kinetic study

KW - Thermogravemetric analysis

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M3 - 文章

AN - SCOPUS:33645636293

SN - 1000-6893

VL - 26

SP - 783

EP - 786

JO - Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica

JF - Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica

IS - 6

ER -

Kinetic study on aircraft-used polymethyl methacrylate under different oxygen concentration

Abstract

Keywords

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