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Two types of phenolic curing agent are available, a poly-functional type and a bifunctional type. Both types have a fluorene structure allowing thermal stability, high Tg and high elasticity to be attained.
| Number of function groups |
Poly-functional |
Bifunctional |
(For reference) |
| Product name |
NV-203-R4 |
CP-001 |
Novolac Phenolic |
| Appearance |
Solid (brownish color) |
- |
Solid (white) |
| Hydroxyl equivalent (theoretical value) |
g/eq |
194 |
189 |
105 |
| Softening point |
℃ |
130 |
210 (melting point) |
82 |
| Heat resistance (5% weight reduction) |
℃ |
320 |
312 |
297 |
| Solvent solubility |
MEK |
20wt% |
◎ |
△ |
◎ |
| 50wt% |
◎ |
× |
◎ |
| Cyclohexanone |
20wt% |
◎ |
◎ |
◎ |
| 50wt% |
× |
× |
○ |
* The data shown in the table is for reference only. Listed values
are not intended to provide any guarantee for products.
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