A Study of Low Temperature towards Polymer Lattice Thermal Conductivity
| Vol-4 | Issue-04 | April 2019 | Published Online: 15 April 2019 PDF ( 235 KB ) | ||
| Author(s) | ||
| Jayendra Kumar 1; Dr. Rahul Solanki 2 | ||
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1Ph.D Research Scholar, Dept. Of. Physics, Himalayan Garhwal University, Uttarakhand 2Associate Professor,Dept. Of. Physics, Himalayan Garhwal University, Uttarakhand |
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| Abstract | ||
The lattice thermal conductivity of a semicrystalline polymer was studied at low temperatures by calculating the total lattice thermal conductivities of four samples of polyethylene with different degrees of crystallinity between 0.43 and 0.81 and temperatures between 0.4 and 20 K. The contributions of the crystalline and noncrystalline natures and their percentage contributions were taken into account. The predicted lattice thermal conductivity of polyethylene was in fairly good quantitative agreement with the experimental value, and showed a strong crystallinity dependence, with a distinctive cross-over point at about 2 K. |
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| Keywords | ||
| polymer, polyethylene, thermal conductivity. | ||
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