Journal
JOURNAL OF APPLIED PHYSICS
Volume 122, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4994797
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Funding
- Ministry of Science and Technology of the People's Republic of China [2013YQ120355]
- NSFC [51606192, 51506062, 51336009]
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The thermal conductivity of cross-linked bulk polyethylene is studied using molecular dynamics simulation. The atomic structure of the cross-linked polyethylene (PEX) is generated through simulated bond formation using LAMMPS. The thermal conductivity of PEX is studied with different degrees of crosslinking, chain length, and tensile strain. Generally, the thermal conductivity increases with the increasing degree of crosslinking. When the length of the primitive chain increases, the thermal conductivity increases linearly. When the polymer is stretched along one direction, the thermal conductivity increases in the stretched direction and decreases in the direction perpendicular to it. However, the thermal conductivity varies slightly when the polymer is stretched in three directions simultaneously. Published by AIP Publishing.
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