English
As the typical cycloaliphatic epoxy resin, TTA21 (3,4-epoxycyclohexyl formic acid-3 ', 4' - epoxycyclohexyl methyl ester)has strong dilution ability, high Tg, good adhesion on a variety of substrates, low shrinkage and oxygen free polymerization inhibition.
| Grade | TTA21S | TTA21L | TTA21P |
| Product name | 3,4-Epoxycyclohexylmethyl 3,4-Epoxycyclohexane Carboxylate | ||
| CAS No. | 2386-87-0 | ||
| Content | 90% min | 95% min | 97% min |
| Total chlorine | / | / | 100 ppm max |
| Epoxy equivalent (g / eq) | 128-145 | 126-135 | 126-135 |
| Viscosity (mpa.s/25℃) | 180-450 | 220-300 | 220-300 |
| Chroma | 100 APHA max | 50 APHA max | 50 APHA max |
Formula composition: TTA21P: polyurethane acrylate
Test conditions: DHR-25 ℃
DHR rotary rheometer
The figure shows that the cycloaliphatic epoxy resin has strong dilution ability. There will be an obvious dilution effect when the addition amount in the formula exceeds 20%.
Formula composition: TTA21P:T188 (thermal cationic initiator) = 100:0.5
DSC differential scanning calorimeter
Curing conditions: 80 ℃ / 1h + 120 ℃ / 1h + 150 ℃ / 1h
The figure shows that the glass transition temperature (Tg) of cycloaliphatic epoxy resin TTA21P is 204 ℃
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