Thermal conductivity of Tecamax® SRP from millikelvin temperatures to room temperature |
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Authors: | Adam L. Woodcraft Valentina Martelli Guglielmo Ventura |
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Affiliation: | a SUPA, Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK b UK Astronomy Technology Centre, Blackford Hill, Edinburgh EH9 3HJ, UK c INFN, Section of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino, Florence, Italy d LENS, University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy e Department of Physics, University of Florence, Via G. Sansone 1, 50019 Sesto Fiorentino, Florence, Italy |
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Abstract: | Tecamax® SRP (self-reinforced polyphenylene) is a new commercially available amorphous polymer which is suitable for use at cryogenic temperatures. It has a high tensile strength (210 MPa at room temperature), resulting from the molecular structure of the polymer rather than by the addition of reinforcing materials. We have measured the thermal conductivity between 60 mK and 280 K. We find that the conductivity below 10 K is similar to, but lower than, most amorphous materials, and the material offers a good combination of low conductivity at low temperatures and high tensile strength. Our results suggest that the material may in fact have a small crystalline component, which may be a partial explanation for the low conductivity. Above 10 K, the temperature dependence of the conductivity is different from most amorphous materials. We are unaware of previous measurements of the thermal conductivity of this material, even at room temperature. |
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Keywords: | Structural materials (A) Thermal conductivity (C) Instrumentation (D) |
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