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Home > Manufactured Products > Adhesives >NTT Adhesives |
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Application:
For fixing optical
fibers in V-grooves
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Main properties of
Ultra Hard, Heat-Resistant Adhesive (NA3925M),
Adhesives for assembling optical fiber arrays
(AT9390) |
Name (Main Components) |
NA3925 (Epoxy) |
AT9390 (Epoxy) |
Conditions |
External appearance |
Light amber, transparent |
Light amber, transparent |
Viscosity (cP) [23 ) |
185 |
1580 |
Curing |
Curing Time (min) |
5~10 |
10 |
Shrinkage during curing (%) |
4 |
4 |
Properties after curing |
Glass Transition Temperature ( ) |
205 |
105~127 |
Modulus ( dyn/cm2) |
25 |
1.1 |
0.79 |
160 |
0.55 |
0.59 |
Refractive index  |
1.52 |
1.49 |
Optical transmittance (%)
[ = 1.3 m,
1mm] |
92 |
92 |
Thermal expansion coefficient
( ) |
8~9 |
8~9 |
Adhesion Strength
(kgf/cm2)[Glass] |
>181 |
>181 |
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