Combined roles of temperature and humidity on cure of a silicone elastomer
| Autor: | Davide S.A. De Focatiis, M. T. Elsmore |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics 02 engineering and technology 010402 general chemistry Elastomer 01 natural sciences chemistry.chemical_compound Silicone Polymers and polymer manufacture Composite material Physics::Atmospheric and Oceanic Physics Atmospheric water Thermal cure Organic Chemistry Humidity Dynamic mechanical analysis 021001 nanoscience & nanotechnology 0104 chemical sciences Shear (sheet metal) Cure model TP1080-1185 chemistry Physics::Accelerator Physics 0210 nano-technology |
| Zdroj: | Polymer Testing, Vol 93, Iss, Pp 106967-(2021) |
| ISSN: | 0142-9418 |
| Popis: | A study of the cure kinetics of a one-part water-scavenging silicone elastomer was carried out under conditions of controlled humidity and temperature using rectangular bars subjected to oscillatory torsional shear. Characteristic cure times were obtained from Hsich model fits to the storage modulus evolution. A modified Arrhenius-style cure model is proposed that accounts for both the temperature dependence and for the proportionality between rate of cure and concentration of atmospheric water. The 2-parameter model is fitted to a broad dataset and allows accurate predictions of cure times. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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