| |
 |
Corporate Office: 864.277.7200 |
|
|
|
| |
|
|
| Home > Manufactured Products > Adhesives >NTT Adhesives |
|
|
|
 |
Moisture Resistant adhesiveness AT8378 has been
discontinued |
|
Fig.Shearing adhesion strength and Bending adhesion
strength |
Moisture Resistance of Bonded
Area of Pyrex® Glass |
|
Testing time (h) at 75 ,
90% RH |
Adhesive |
500 |
2000 |
3000 |
5000 |
AT6001 |
|
|
|
|
AT6177 |
|
|
|
|
Commercial product-1 |
|
|
|
|
Commercial product-2 |
|
|
|
|
Commercial
product-1,-2:UV acrylate x:Peeling occurred
|
How to Test Moisture
Resistance of the Bonded Areas |
|
Fig. Test method for the moisture resistance of
the bonded area |
|
Close-up Views of the
Optical Fibers |
|
|
Fig.
Peeling condition of optical fiber |
|
Results
of Moisture Resistance Testing of the Bonded
Areas |
|
at 75,
90% RH |
Testing time (h) at 121,
100% RH |
Adhesive* |
|
Tg () |
1000 |
2000 |
3000 |
5000 |
1 |
5 |
10 |
20 |
T6001 |
1.51 |
-3 |
0/5** |
0 |
0 |
0 |
0/3 |
0 |
0 |
0 |
AT6001 High-Tg version |
1.51 |
92-109 |
- |
- |
- |
- |
0/44 |
0 |
0 |
0 |
A4 |
1.52 |
155 |
1/5 |
5 |
- |
- |
3/3 |
- |
- |
- |
A5 |
1.48 |
51 |
3/5 |
3 |
5 |
- |
3/3 |
- |
- |
- |
E2 |
1.49 |
130 |
- |
- |
- |
- |
3/3 |
- |
- |
- |
| *AT6001 and its high-Tg version: Highly
durable acrylic UV-curable optical adhesives
A4, A5: General-purpose acrylic UV-curable optical
adhesive
E2: General-purpose epoxy UV-curable optical adhesive
** Number of samples in which peeling occurred at
fibers/Total number of adhesive samples |
Main properties of
Humidity-resistant optical adhesive
for bonding optical waveguide(AT6001, AT6001 High Tg
products) |
Name (Main Components) |
AT6001
(Acrylate)
|
AT6001 High Tg
products
|
AT8224
(Acrylate)
|
AT8378
(Acrylate)
DISC
|
AT6390
(Acrylate) (reference only)
|
Conditions |
External appearance |
Transparent
|
Light amber
|
Light amber
|
Light amber
|
Viscosity (cP) [25] |
440
|
180
|
390
|
840
|
Curing |
Curing Time (min) |
10 *1
|
10 *1
|
10 *1
|
10 *1
|
Shrinkage during curing (%) |
6
|
9
|
8
|
10
|
Properties after curing |
Glass Transition Temperature () |
- 4 ~-3
|
111
|
86
|
100
|
Refractive index |
1.51
|
1.51
|
1.50
|
1.51
|
Optical transmittance (%)
[ = 1.3 m,
1mm] |
90
|
83
|
89
|
90
|
Adhesion Strength
(kgf/cm2)[Glass] |
>150
|
122
|
> 89
|
156
|
Thermal expansion coefficient (  ) |
2
|
2
|
2
|
1
|
Modulus( dyn / cm2) [25] |
1
|
5
|
9
|
80
|
| (Note)
This property data is a measured value on samples instead of
the guaranteed value.
Recommended curing process : |
|
*1 UV irradiation : 10mW/cm2 (365nm) Heat treatment : 50 ~
60 for 30 ~60min |
|
|
|
|
| |
|
|
|
