The thermal conductivity of Kapton HN between 0.5 and 5 K

The thermal conductivity of Kapton HN is measured for temperatures between 0.5 and 5 K. The temperature rise across two different Kapton-Stycast 1266 stacks is measured for a known heat transfer rate. These two measurements, combined with the geometry of the stacks, are then used to infer the bulk thermal conductivity of the Kapton. The measured conductivity was found to fit to a power law of the form k = 4.638 x 10(-5)T(0.5678) W/cm K, where T is in Kelvins. (C) 2000 Elsevier Science Ltd. All rights reserved.