Study of Changes in Optical Properties of PMMA Film before and after Irradiation by Laser
| Autor: | Ghaleb A. Dahash, S. F. Haddawi, Kalid Mahdi Jassim, Hussein Neama Najeeb |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry technology industry and agriculture Analytical chemistry macromolecular substances General Medicine Molar absorptivity Laser Poly(methyl methacrylate) law.invention Absorbance Optics law Attenuation coefficient visual_art visual_art.visual_art_medium Irradiation Absorption (electromagnetic radiation) business Refractive index |
| Zdroj: | Chemical and Materials Engineering. 2:145-147 |
| ISSN: | 2332-1067 2332-1032 |
| DOI: | 10.13189/cme.2014.020603 |
| Popis: | In this work the effects of Nd: YAG laser 1064 nm on optical properties of pure Poly Methyl Methacrylate (PMMA) were investigated .The absorption and transmission spectra have been recorded in the wavelength range (190-890) nm using UV-Vis spectroscopy. The results show that Egopt of the films decreases with increasing time of irradiation .The absorbance, absorption coefficient, extinction coefficient and refraction index of pure and irradiated PMMA increase with increasing the time of irradiation. |
| Databáze: | OpenAIRE |
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