Vinyl (VT’s) and Epoxy terminated (ET’s) RLP’s have reactive acrylate vinyl groups which can be activated in cure systems by free radical mechanisms. This type of cure system is often useful in polyester resin systems. Use of RLP’s are beneficial for improved impact resistance. Applications include:
| Hypro Methacrylate Vinyl & Epoxy Terminated Liquid Polymers | 1300X33 VTBNX | 1300X43 VTBNX | 1300X40 ETBN |
|---|---|---|---|
| Acrylonitrile Content, % | 18 | 21.5 | – |
| Brookfield Viscosity, mPa•s or cP @ 27°C (81°F) | 170,000 | 425,000 | 1,450 |
| Acid Number | 5 (max) | 5 (max) | 1.5 (max) |
| Specific Gravity, 25°/25°C (77°F) | 0.967 | 0.981 | .0945 |
| Solubility Parameter* | 8.90 | 9.09 | – |
| Glass Transition Temperature Tg, °C** | –49 | –45 | – |
| Total Solids, % | 100 | 100 | 50 |
| Styrene, % | NA | NA | 50 |
V = Methacrylate Vinyl T = Terminal Reactive Groups B = Butadiene N = Acrylonitrile X = Pendent Reactive Groups
*Calculations based on molar attraction constants.
**Measured via DSC (Differential Scanning Calorimeter)
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