Epoxy resin-acrylated polyurethane semi-interpenetrating polymer networks (semi-IPNs) were synthesized containing various ratios of the diglycidyl ether of bisphenol-A (DGEBA)-based epoxy resin and an acrylated aliphatic urethane oligomer. The synthesis was carried out in the presence of a mixture o
The glass transition temperature and microstructure of polyurethane/epoxy resin interpenetrating polymer networks nanocomposites
โ Scribed by Qingming Jia; Maosheng Zheng; Renjie Shen; Hongxiang Chen
- Publisher
- Springer
- Year
- 2006
- Tongue
- English
- Weight
- 183 KB
- Volume
- 51
- Category
- Article
- ISSN
- 1001-6538
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Damping properties of epoxy resin/polyurethane (EP/PU) semi-interpenetrating polymer networks (IPNs) were studied by the dynamic mechanical analysis (DMA) method. It shows that the semi-IPNs have excellent damping properties at ordinary temperature. The maximum value of tan 6 is about 1 when the wei
## Abstract Nanocomposites with varying concentrations of nanosized silicon dioxide particles were prepared by adding nanosilica to interpenetrating polymer networks (IPN)s of polyurethane and epoxy resin (PU/EP). The PU/EP IPNs and nanocomposites were studied by dynamic mechanical analysis, scanni
A series of epoxy networks were synthesized in which the molecular weight between crosslinks (M c ) and crosslink functionality were controlled independent of the network chain backbone composition. The glass transition temperature ( T g ) of these networks was found to increase as M c decreased. Ho