Two thermal analysis techniques-Differential Scanning Calorimetry and Thermostimulated Current-have been used to characterize a mica/glass fiber-reinforced composite; the matrix is a novolac epoxy resin. The glass transition temperature of the composite as determined by DSC is 80ะC. Below the glass
Secondary relaxations in heterocyclic polymer networks: A study of mechanical spectroscopy
โ Scribed by Giovanni Carini Jr; Giuseppe Carini; Sergio La Rocca; Gaspare Tripodo; Antonio Bartolotta; Gaetano Di Marco; Eleonora G. Privalko
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 336 KB
- Volume
- 521-522
- Category
- Article
- ISSN
- 0921-5093
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Relaxations in poly(etherimide) PEI Ultem 1000 have been analysed by di โ erential scanning calorimetry (DSC), dynamic mechanical spectroscopy (DMS), dielectric relaxation spectroscopy (DRS) and thermally stimulated depolarization current (TSDC) measurements. DMTA and DRS results show three distinct
The curves describing the relaxation behaviour of poly(etherimide) at several frequencies shows in the dielectric lossรtemperature plot c and b relaxations centred at [95ยกC and 100ยกC, respectively, at 10 Hz. The glassรrubber relaxation or a process appears at 225ยกC at 10 Hz ; at this temperature fre