50% Sodium hydroxide solution compatibility with AFLAS®
Test method
Test fluid
Test piece
Formulation
Cure Conditions
Soaked into the fluid at 100℃ for 70 hours
50% sodium hydroxide solution (50% NaOH)
AFLAS® 100S
AFLAS® 100S
100
MT-Carbon(N990)
TAIC*
Perkadox® 14**
20
5
Sodium Stearate
1
(phr)
1
Press molded at 170C for 20min
Post cured at 200C for 4h
AFLAS® 100S
FKM
24
17
270
270
65
73
AFLAS® 100S
FKM
Change of Tensile Strength [%]
-9
decomposition
Change of Tensile Elongation [%]
-11
decomposition
Change in Hardness [points]
-1
decomposition
Volume change [%]
0.1
decomposition
Properties (before test)
Tensile strength
[MPa]
Tensile Elongation [%]
Hardness
[shore-A]
50% Sodium hydroxide solution
compatibility
100 ℃ for 70 hours
* Triallylisocyanurate
** 1,3-bis(t-butylperoxy)-diisopropylbenzene. Perkadox® is a registered trademark of Akzo Nobel Chemicals B.V.