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Otsuka Chemical’s Hydrazide compounds are widely used in paint and adhesive thermoset applications. This includes latent hardeners for epoxy resins and as cross linking agents in acrylic emulsions with ketone groups. Through a combination with our several types of hydrazide compounds, you may easily control the curing speed and temperature of epoxy resins.
Product
|
Unit
|
ADH
|
SDH
|
DDH
|
IDH
|
SAH
|
---|---|---|---|---|---|---|
Molecular weight
|
174.2 | 230.3 | 258.4 | 194.2 | 152.2 | |
Appearance
|
White crystalline | White crystalline | White crystalline | Whitish crystalline | Whitish crystalline | |
Melting point
|
°C | 177 ~ 183 | 186 ~ 188 | 188 ~ 192 | 215 ~ 225 | 145 ~ 155 |
Product
|
Unit
|
MAI
|
ADH
|
SDH
|
DDH
|
IDH
|
DICY
|
|
---|---|---|---|---|---|---|---|---|
Formulation
|
Epoxy resin
|
100 | 100 | 100 | 100 | 100 | 100 | |
Curing agent
|
24 | 23 | 30 | 34 | 26 | 11 | ||
Gelling time
|
160°C
|
min | 4 | 8 | 11 | 12 | 28 | >60 |
140°C
|
26.5 | 49 | >60 | >60 | >60 | >80 | ||
120°C
|
>60 | >60 | ||||||
Pot life (40°C)
|
day | >90 | >90 | >90 | >90 | >90 | >90 | |
Tg (TMA)
|
°C | 142 | 120 | 138 | 68 |