Thermal conductivity of high polymers from −180°C. to 90°C.

✍ Scribed by Eiermann, K. ;Hellwege, K.-xH.

• Publisher: John Wiley and Sons
• Year: 1962
• Weight: 334 KB
• Volume: 57
• Category: Article
• ISSN: 0022-3832
• DOI: 10.1002/pol.1962.1205716508

✦ Synopsis

Abstract

Systematic measurements of the thermal conductivity of plastics have been undertaken by various methods and checked against each other. Between −180 and +100°C. the thermal conductivity depends only slightly on the temperature. For instance, amorphous plastics and natural rubber show a break in the curve at the second‐order transition temperature. This break probably is connected with the break in the volume versus temperature curve. In stretched samples, the thermal conductivity was found to be larger when stretching was in a direction parallel than perpendicular to the chains. Partially crystalline plastics show a more complex behavior.