G212 流動溶融ポリマー複合材の伝熱挙動に及ぼす充填材の影響(OS-13 材料加工における熱工学関連技術I)

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  • G212 Effect of Filler on Heat Transmission Behavior of Flowing Melt Polymer Composites

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The probe (healer) was inserted in the flowing polypropylene / mica composites, and the information heat transfer behavior from the probe to the molten composites was examined experimentally. As a result, the heat transfer coefficient increased with an increase of the mica content, and showed a clear flow velocity dependency. Moreover, it was found that the boundary flow velocity of the conduction heat transmission and the heat transfer by convention was 0.12-0.18mm/s from the relation between equivalent conduction layer thickness and the flow velocity. Prandtl number of the PP/Mica composites increases as the viscosity increase, and decreases dependently on the flow velocity and temperature.

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