Effect of Xenon Arc Lamp Irradiation on Properties of Polymethyl Methacrylate for AviationReport as inadecuate




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YB-2 aviation polymethyl methacrylate PMMA is irradiated in a xenon arc lamp weather resistancetest chamber for 1620 hours. The tensile strength, light transmittance, surface morphology,relative molecular mass, infrared absorption spectrum and glass transition temperature Tg ofPMMA exposed in xenon arc lamp for different durations are tested and characterized by universaltesting machine, optical haze instrument, scanning electronic microscopy SEM, gel permeationchromatograph GPC, fourier transform infrared spectrometer FT-IR and differential scanningcalorimetry DSC, so as to comprehensively analyze the influence of xenon arc lamp irradiationon the performance of PMMA. The results reveal that under the effect of 1620 hours xenon arclamp irradiation and periodic spraying water, the light transmittance and glass transition temperaturedo not change significantly, and no new chemical group is produced. After irradiated 360hours, tiny cracks occur in the surface of PMMA, indicating that they occur at a certain degree ofdegradation, meanwhile, the main chain may be broken and the relative molecular mass of surfaceof the material decreases. After exposure of 720 hours, the tensile strength decreases about 30%.

KEYWORDS

Aviation Perspex, Xenon Arc lamp Irradiation, Relative Molecular Mass, Surface Morphology, Gel Permeation Chromatograph

Cite this paper

Meng, J. and Wang, Y. 2015 Effect of Xenon Arc Lamp Irradiation on Properties of Polymethyl Methacrylate for Aviation. Open Journal of Organic Polymer Materials, 5, 23-29. doi: 10.4236-ojopm.2015.51002.





Author: Jiangyan Meng, Yunying Wang

Source: http://www.scirp.org/



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