Effect of Temperature and Concentration on the Optical Properties of PVC Solutions | ||
| Engineering and Technology Journal | ||
| Article 14, Volume 36, 2B, December 2018, Pages 170-174 PDF (721.07 K) | ||
| DOI: 10.30684/etj.36.2B.14 | ||
| Authors | ||
| Esam A. Tawfiq* ; Shams. M. Abdul kareem | ||
| Applied Science Department, University of Technology, Baghdad,Iraq. | ||
| Abstract | ||
| In this paper, effects of temperature and concentration on the absorption spectra for Polyvinyl chloride solutions are studied at wavelengths from 200 to 400 nm and with the range of temperature 20, 30, 40, 50, and 60 degrees (Co). Electronic absorption spectra were examined over the wavelength range 200-400 nm by different concentrations (1x10-3, 8x10-4, 6.5x10-4, 5x10-4 and 3x10-4)[M]. The UV spectra shifted slightly towards large wavelength with increasing the temperature. The values of the energy gap of polyvinyl chloride are decreasing as concentration and temperature increased. The data shows that the refractive index of the polymer decreases with increasing the wavelength and temperature. The relationship between the absorption coefficient and photon energy of the PVC solutions are calculated. | ||
| Keywords | ||
| photophysical processes; absorption; polyvinyl chloride; refractive index; Absorption coefficient; thermal effect | ||
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