Pyrolysis responses of kevlar/epoxy composite materials on laser irradiating

Wei-ping Liu; Cheng-hua Wei; Meng-lian Zhou; Zhi-liang Ma; Ming-ying Song; Li-xiong Wu

doi:10.1117/12.2266617

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12 May 2017 Pyrolysis responses of kevlar/epoxy composite materials on laser irradiating

Wei-ping Liu, Cheng-hua Wei, Meng-lian Zhou, Zhi-liang Ma, Ming-ying Song, Li-xiong Wu

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Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 101730O (2017) https://doi.org/10.1117/12.2266617
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

The pyrolysis responses of kevlar/epoxy composite materials are valuable to study in a case of high temperature rising rate for its widely application. Distinguishing from the Thermal Gravimetric Analysis method, an apparatus is built to research the pyrolysis responses of kevlar/epoxy composite materials irradiated by laser in order to offer a high temperature rising rate of the sample. By deploying the apparatus, a near real-time gas pressure response can be obtained. The sample mass is weighted before laser irradiating and after an experiment finished. Then, the gas products molecular weight and the sample mass loss evolution are derived. It is found that the pressure and mass of the gas products increase with the laser power if it is less than 240W, while the molecular weight varies inversely. The variation tendency is confusing while the laser power is bigger than 240W. It needs more deeper investigations to bring it to light.

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Wei-ping Liu, Cheng-hua Wei, Meng-lian Zhou, Zhi-liang Ma, Ming-ying Song, and Li-xiong Wu "Pyrolysis responses of kevlar/epoxy composite materials on laser irradiating", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101730O (12 May 2017); https://doi.org/10.1117/12.2266617

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