This study compares the effects of two Zonyl® MP1000 and Zonyl® MP1500, in a standard Viton® formulation designed for O-ring service. A beneficial improvement in tear strength can be observed with the Zonyl® MP1500 fluoroadditive. Both additives appear to improve abrasion resistance equally well.
|
|
|
|
|
| Viton® A-401C |
100 |
100 |
100 |
| Maglite D |
3 |
3 |
3 |
| MT Black (N990) |
30 |
30 |
30 |
| Calcium Hydroxide |
6 |
6 |
6 |
| Zonyl® MP1000 |
-- |
20 |
-- |
| Zonyl® MP1500 |
-- |
-- |
20 |
|
| Mooney Viscosity |
|
|
|
| ML 1+10 @ 121°C |
78 |
77 |
92 |
| Mooney Scorch @ 121°C |
|
|
|
| Minimum |
41 |
42 |
50 |
| Time to 2 Pt. Rise, minutes |
>30 |
>30 |
>30 |
| ODR @ 177°C, 3 Arc, 30 Minute Motor |
|
|
|
| Ml, lb-in |
11.0 |
13.6 |
16.6 |
| Ts2, minutes |
2.0 |
2.8 |
2.3 |
| Tc50 minutes |
3.2 |
3.8 |
3.5 |
| Tc90 minutes |
3.9 |
4.2 |
4.0 |
| MH, lb-in |
111.0 |
101.1 |
111.2 |
|
| Press Cure: 10 minutes @ 177°C |
|
|
|
| Post Cure: 24 hours @ 232°C |
|
|
|
| Physical Properties @ RT |
|
|
|
| 50% Modulus, MPa (psi) |
2.9
(420) |
2.9
(420) |
6.0
(870) |
| 100% Modulus, MPa (psi) |
6.5
(942) |
5.2
(754) |
9.5
(1377) |
| Tensile Strength, MPa (psi) |
12.5
(1812) |
10.7
(1551) |
14.3
(2073) |
| Elongation @ Break, % |
181 |
196 |
192 |
| Hardness, Duro A, Pts |
75 |
76 |
80 |
| Tear Resistance @ 25°C |
|
|
|
| Die B, KN/m (pli) |
29.5
(164.8) |
30.7
(171.9) |
45.5
(254.7) |
| Die C, KN/m (pli) |
18.8
(105.4) |
18.5
(103.4) |
32.3
(180.7) |
| Tear Resistance @ 177°C |
|
|
|
| Die B, KN/m (pli) |
5.8
(32.7) |
6.6
(36.8) |
15.9
(89.2) |
| Die C, KN/m (pli) |
5.2
(29.2) |
6.3
(35.1) |
8.8
(49.2) |
| Compression Set, Method B, O-rings |
|
|
|
| 22 hours @ 200°C, % |
9 |
12 |
15 |
| 70 hours @ 200°C, % |
12 |
20 |
17 |
| Abrasion Resistance, Taber Abrader |
|
|
|
H-18 Wheel, 1 Kg Load, 1000 Revs
Weight Loss / Revolution, mg |
0.42 |
0.08 |
0.08 |
|
