A quick and accurate method to determine the Poisson's ratio and the coefficient of thermal expansion of PDMS
| Autor: | Matthias C. Wapler, Ulrike Wallrabe, Angelina Müller |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Poisson distribution 01 natural sciences Poisson's ratio Thermal expansion 0104 chemical sciences symbols.namesake chemistry Optical surface symbols Profilometer Composite material 0210 nano-technology Curing (chemistry) |
| Zdroj: | Soft Matter. 15:779-784 |
| ISSN: | 1744-6848 1744-683X |
| DOI: | 10.1039/c8sm02105h |
| Popis: | We present a new and accurate method to determine the Poisson's ratio of PDMS, using thermal expansion and an optical surface profilometer. The Poisson's ratio of Sylgard 184 was found to be ν = 0.4950 ± 0.0010 and for Sylgard 182, ν = 0.4974 ± 0.0006. Furthermore, we found that for both PDMS types, the coefficient of thermal expansion depends approximately linearly on the curing temperature. This method can be used for almost any kind of soft polymer that can be cured from a liquid at elevated temperatures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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