Effect of cure temperature on urethane networks
β Scribed by M.E. Kimball; G.S. Fielding-Russell
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 276 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0032-3861
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The isothermal enthalpy changes with time of a dental composite were examined by microcalorimetry to isolate the effects of different filler concentrations and curing times on chemical aging of these composites. Urethane dimethacrylate (UDMA) monomer, zirconia-silica (ZS) powder, and 3-methacryloxyp
## Abstract The curing process of an epoxyβurethane copolymer in a heated mold was studied. The epoxy resin (DGEBA, Araldyt GY9527; Ciba Geigy), was coreacted with a urethane prepolymer (PU, Desmocap 12; Bayer) through an amine that acted as crosslinking agent (mixture of cycloaliphatic amines; Dis