Determining the quasi-real-time change in the glass transition temperature of a thermoset resin under cure using fast scanning calorimetry
| Autor: | Yoshitomo Furushima |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Quenching
Materials science technology industry and agriculture Analytical chemistry Thermosetting polymer 02 engineering and technology Calorimetry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Chemical reaction Isothermal process 010406 physical chemistry 0104 chemical sciences Chemical kinetics Differential scanning calorimetry Physical and Theoretical Chemistry 0210 nano-technology Glass transition Instrumentation |
| Zdroj: | Thermochimica Acta. 677:79-84 |
| ISSN: | 0040-6031 |
| Popis: | A fast scanning calorimetric method to obtain the time and temperature dependence of the glass transition temperature (Tg) under a chemical reaction was reported. The cross-linking reaction of an epoxy-amine system is perfectly suppressed by an ultrafast temperature scan. By inserting the quenching and fast heating measurements in an isothermal or non-isothermal process, the quasi-real-time change in Tg during cure can also be obtained from a single piece of neat resin. In addition, the relation between Tg and conversion is obtained in a full range of conversion by combining with the conventional analysis of isothermal or non-isothermal reaction kinetics using differential scanning calorimetry or temperature modulated differential scanning calorimetry. |
| Databáze: | OpenAIRE |
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