About |
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Virantage® VW-series functionalized polyethersulfones (r-PESU) are amorphous, high-temperature sulfone polymers featuring reactive end groups to enhance solubility and improve interfacial properties in epoxy thermosets. Their inherent toughness imparts damage tolerance to thermoset composites and excellent flexibility to coatings. Virantage® polymers also offer superior thermal and hydrolytic stability that delivers best-in-class hot-wet performance. They are especially suitable for incorporation into advanced composite resin systems used to produce high-performance aerospace components and have been used successfully in a variety of thermosetting resin systems including epoxies, phenolics, and BMIs. Virantage® VW-series polymers are available in a range of molecular weights: high (10200), medium (10300) and low (10700). A range of particle sizes are also available to meet formulators’ specific needs. All Virantage® PESU polymers are produced at Solvay’s state-of-the-art, world-scale facility in Panoli, India under ISO 9001:2000 and ISO 14001:2004 certified quality management systems.&& |
Product Description | |
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Supplier | Solvay |
Material Status | Commercial: Active |
Features | Hydrolysis stability,Low Viscosity,High Heat Resistance,Low molecular weight,Amorphous,Heat Stabilized,Good flexibility |
Availabilitys | Africa & Middle East ,Europe,Asia Pacific,Latin America,North America |
Technical Data | |||
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PHYSICAL | Nominal value | Unit | Test method |
Solution viscosity | 560 | mPa·s | Internal Method |
OH terminal group (end group titration measurement) | 210 | µeq/g | Internal Method |
Residual solvents | |||
Measured by gas chromatography | 0.15 | % | Internal Method |
Particle size | |||
VW-10700RFP | 75.0 | µm | |
VW-10700RP | 500 | µm | |
VW-10700RSFP | 45.0 | µm | |
Average molecular weight | 21000 | g/mol | Internal Method |
humidity | |||
Measured during packaging | 1.5 | % | Internal Method |
THERMAL | Nominal value | Unit | Test method |
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Glass transition temperature | 216 | ℃ | DSC |
Notes |
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1. Typical properties: these are not to be construed as specifications. |
2. 35% solution in DMAc at 40°C |
3. Gel Permeation Chromatography with polystyrene as standard |
4. Virantage® r-PESU is hygroscopic and may absorb moisture in storage. Dry no higher than 130°C for a minimum of 3 hours if needed. |
5. Typical Particle Size ~D90 Particle sizes by sieve measurement |
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