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Study on Pyrolysis Kinetics of Typical Carbon Fiber Bidirectional Sheet |
Yanying XU1,2,Ying ZHANG1,2,Zhi WANG1,2( ),Jian CHEN1,2 |
1 Liaoning Key Laboratory of General aviation, Shenyang Aerospace University, Shenyang 110136, China 2 Liaoning Key Laboratory of Aircraft Fire Explosion Control and Reliability Airworthiness Technology, Shenyang Aerospace University, Shenyang 110136, China |
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Cite this article:
Yanying XU,Ying ZHANG,Zhi WANG,Jian CHEN. Study on Pyrolysis Kinetics of Typical Carbon Fiber Bidirectional Sheet. Chinese Journal of Materials Research, 2017, 31(1): 57-64.
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Abstract The influence of heating rate on the pyrolysis characteristics of a carbon fiber bidirectional sheet (T300-3000) in air stream was investigated by means of DTG-60(AH) TG/DTA simultaneous thermal analyzer. The results show that the thermal degradation behavior of the sheet was affected greatly by heating rate. The temperature related with the maximum mass loss rate shifted towards high temperature,and the distance between the two peaks of DTG curves was gradually larger and the peak areas increased with the increasing heating rate. The pyrolysis process of the carbon fiber bidirectional sheet can be divided into three stages including two decomposition stages of epoxy resin and one of the carbon fiber decomposition. The pyrolysis kinetics curves of the carbon fiber bidirectional sheet were analyzed by Kissinger method and Flynn-Wall-Ozawa method,and the acquired apparent activation energy and the apparent pre-exponential factor for different heating rates were of good accordance with each other. The thermostability of the carbon fiber bidirectional sheet with epoxy resin is relatively strong and controllable within a certain range of mass loss.
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Received: 25 March 2016
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Fund: Supported by Science Public Welfare Research Fund of Liaoning (No.GY2014-C-005) and Natural Science Foundation of Liaoning Province (No.201602567) |
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