Hypro® 1300X18 CTBNX
Hypro 1300X18 CTBNX is a carboxyl terminated butadiene-acrylonitrile copolymer containing pendent carboxyl functionality and is used predominately as a reactant with a base thermoset resin to gain product performance improvements. These resultant pre-reacts (adducts) can be incorporated at various levels to suit the needs of your specific formulation.
| Typical Properties | Values |
|---|---|
| % Acrylonitrile | 21.5 |
| Viscosity, cps (reflect mid-point) | 350,000 @27°C |
| Carboxyl Content, Equiv. Phr | 0.070 |
| Carboxyl Content, Acid Number | 39 |
| Color, Max | 8 (Gardner) |
| Polymer Functionity | 2.4 |
| Molecular Weight (g/mol) | 3400 |
| Glass Transition, Tg, °C | -46 |
| Specific Gravity @25°C | 0.961 |
| Solubility Parameter, (cal/cm3)1/2 | 8.99 |
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| Application Group | Application | Description |
|---|---|---|
| Composites | General Composites Vinyl Ester Composites | Pre-react to make vinyl-ester epoxy CTBN adduct with excellent toughness. |
| Composites | Advanced Composite Prepregs | Requires pre-reaction with epoxy. Improves fracture toughness of brittle polymer with negligible decline in modulus and Tg. |