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SB322 is a one part low viscosity bismaleimide infusion resin developed for high temperature composite tooling with service temperature up to 250°C.
—Read allThe resin is characterized by low viscosity at impregnation and molding temperatures (200 cP at 100 ° C), which makes it possible to obtain CFRP with low porosity. Pre-curing at 190 °C allows to remove composite tool from plastic model. Post-curing at 230°С provides service temperature of tool up to 250°.
Polymer matrix characteristics
|
Tensile strength, MPa |
ASTM D638 |
82 |
| Tensile modulus, GPa |
ASTM D638 |
3.9 |
|
Dry glass transition temperature, Tg, °С |
ASTM E1640 |
270 |
|
CTE, K-1 |
ASTM E831 |
1.5•10-6 |
|
Fracture toughness, KIC, MPa • m1/2 |
ASTM D5045 |
0.780 |
|
Strain energy release, GIC, J/m2 |
ASTM D5045 |
165 |
|
Moisture absorption, % (60 h. in boiling water) |
|
4.78 |
