Hypro® 1300X18 CTBNX

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
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.