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Proceedings Paper

Pyrolysis responses of kevlar/epoxy composite materials on laser irradiating
Author(s): Wei-ping Liu; Cheng-hua Wei; Meng-lian Zhou; Zhi-liang Ma; Ming-ying Song; Li-xiong Wu
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Paper 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.

Paper Details

Date Published: 12 May 2017
PDF: 5 pages
Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101730O (12 May 2017); doi: 10.1117/12.2266617
Show Author Affiliations
Wei-ping Liu, Northwest Institute of Nuclear Technology (China)
Cheng-hua Wei, Northwest Institute of Nuclear Technology (China)
Meng-lian Zhou, Northwest Institute of Nuclear Technology (China)
Zhi-liang Ma, Northwest Institute of Nuclear Technology (China)
Ming-ying Song, Northwest Institute of Nuclear Technology (China)
Li-xiong Wu, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 10173:
Fourth International Symposium on Laser Interaction with Matter
Yongkun Ding; Guobin Feng; Dieter H. H. Hoffmann; Jianlin Cao; Yongfeng Lu, Editor(s)

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