HyproTM reactive liquid polymers are used as elastomeric modifers for thermoset composites based on several chemistries including epoxies, unsaturated polyesters and vinyl esters. Typically the composites are reinforced with either fiberglass or carbon fiber depending upon the degree of stiffness required for a given application. Several grades of RLP are applicable in composites with CTBN (carboxyl terminated butadiene-acrylonitrile) commonly used in epoxy composites and ETBN (epoxy terminated butadiene-acrylonitrile) used in vinyl ester composites. Chopped glass reinforced unsaturated polyester composites employ reactive liquid polymers for enhanced adhesion and impact resistant purposes.
A specific property highlighted with elastomer toughened, structural composites is interlaminar fracture energy equating to enhanced delamination resistance. Lower viscosity formulations have been developed for VARTM composites.
| Resin matrix: | Recommended RLP: | Typical benefits: |
|---|---|---|
| Epoxy | CTBN, CTBN | Enhances toughness |
| Increases low temperature mechanical properties | ||
| Vinyl ester | VTB, VTBNX | Improves long-term cyclical durability/fatigue resistance |
| CTBN, CTBNX | Increases impact or crack resistance |
For more specific information pertaining to the use of the RLP materials in composite applications please contact your local Emerald Performance Materials Sales Representative or contact our Customer Service Group 888.889.9150.
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