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Study of weathering effect on the thermal conductivity of polyvinyl chloride before and after silicon carbide addition as packaging materials | ||
| Iraqi Journal of Physics | ||
| Article 1, Volume 14, Issue 29, 2016, Pages 82-89 | ||
| Authors | ||
| Nahida J. Hammed; Hadeer W. Qasim | ||
| Abstract | ||
| The work was carried out in two stages. The first stage concerned with study of silicon carbide (SiC) ratio (1.5, 2.5, 3.5, and 4.5 wt%) effect on the Thermal conductivity of polyvinyl chloride (PVC); and the second stage concerned with the UV – weatherizing (25, 50, and 75 hr), thermal aging (40, 50, and 60 ˚C), and rain- weatherizing (1, 2.5, and 4 hr) effect on the samples involved.Thermal conductivity results proved that there was slight increase in thermal conductivity by (SiC) loading; it increased from 0.17 W/m.K for PVC to 0.19 W/m.K for 4.5% SiC/PVC; where as it was systematically decreased by UV- weatherizing, thermal aging, and rain- weatherizing. This property is in a good agreement with general characteristics of packaging materials as warm or cold food packaging. | ||
| Keywords | ||
| thermal conductivity; PVC; Sic; Plastic packaging; weatherizing; Thermal aging; Rain | ||
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