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Effect of Xenon Arc Lamp Irradiation on Properties of Polymethyl Methacrylate for Aviation

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DOI: 10.4236/ojopm.2015.51002    2,936 Downloads   3,351 Views   Citations

ABSTRACT

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

Conflicts of Interest

The authors declare no conflicts of interest.

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.

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