| Essentials |
Asaprene™ E40 is BR with low
Mooney viscosity. It is particularly effective for
obtaining superior low-temperature characteristics.
It is supplied in 35-kg bales
.Contact
us for information on handling and use.
|
|
| Applications |
| Targeted fields of
application include tires, industrial products, and footwear. |
|
| Basic characteristics of typical
silica-dispersed Asaprene™ E40 formulation1 |
| Property |
E40 |
High-cis
BR2 |
| Polymer |
Mooney viscosity, ML1+4,
100°C |
53 |
43 |
| Formulation
Mooney viscosity, ML1+4, 100°C |
87 |
88 |
| Hardness,
Shore A |
68 |
67 |
Tensile
properties, 23°C
|
100% tensile stress
(MPa) |
2.4 |
2.4 |
| 300% tensile stress
(MPa) |
7.2 |
7.7 |
| Tensile strength (MPa) |
8.4 |
9.5 |
| Elongation at break
(%) |
331 |
348 |
| Lupke rebound
resilience3 |
0°C (%) |
65.3 |
63.5 |
| 23°C (%) |
70.8 |
69.3 |
| 50°C (%) |
72.4 |
72.3 |
| Goodrich
heat buildup, T (°C) |
33 |
30 |
| Payne effect,
G', 0°C (MPa) |
1.38 |
1.64 |
| Payne effect,
G', 50°C (MPa) |
1.05 |
1.45 |
|
1 Rubber (E40 or high-cis BR2)/silica/naphthenic
oil/silane coupling agent (Degussa Si69) = 100/40/5/2 wt parts.
2 Competitive high-cis BR available on market from
a leading manufacturer.
| Basic characteristics of typical
silica compound rubber formulations1 with Asaprene™ E40
and with Asaprene™ E40 masterbatch. |
| |
NR blends |
#1502
blends |
| E40 |
50 |
- |
- |
50 |
- |
| E40 masterbatch |
- |
50 |
- |
- |
50 |
| High-cis
BR |
- |
- |
50 |
- |
- |
| NR |
50 |
50 |
50 |
- |
- |
| #1502 |
- |
- |
- |
50 |
50 |
| Formulation
Mooney viscosity, ML1+4, 100°C |
69 |
65 |
59 |
79 |
78 |
| Hardness,
Shore A |
64 |
62 |
64 |
67 |
66 |
| Tensile
properties, 23°C |
100% tensile
stress (MPa) |
2.0 |
1.9 |
2.1 |
2.4 |
2.5 |
| 300% tensile
stress (MPa) |
7.1 |
7.2 |
7.7 |
8.5 |
9.5 |
| Tensile
strength (MPa) |
17.0 |
18.5 |
18.0 |
14.9 |
15.5 |
| Elongation
at break (%) |
520 |
520 |
540 |
440 |
420 |
| Lupke
rebound resilience2 |
0°C
(%) |
57.0 |
60.5 |
54.0 |
49.5 |
54.0 |
| 23°C
(%) |
68.5 |
71.5 |
68.0 |
61.0 |
64.5 |
| 50°C
(%) |
73.0 |
75.0 |
73.0 |
67.0 |
69.5 |
| Akron abrasion
(cc) |
0.271 |
0.245 |
0.174 |
0.191 |
0.154 |
| Goodrich
heat buildup, T (°C) |
23 |
23 |
22 |
28 |
26 |
| Compression
set, 70°C, 22hr (%) |
17 |
15 |
14 |
13 |
12 |
| Payne effect,
G', 0°C (MPa) |
2.04 |
1.12 |
2.64 |
2.46 |
1.31 |
| Payne effect,
G', 50°C (MPa) |
1.79 |
1.01 |
2.27 |
1.83 |
0.95 |
|
1 Rubber(s)/silica/naphthenic oil/silane
coupling agent (Degussa Si69) = 100/40/5/2 wt parts.
2 Test method: New JIS K 6255.
Please note that all data and values are given
as typical results obtained with the indicated test methods for
purposes of basic reference in grade selection only, and not as
any product specification or warranty of any nature, and are subject
to change without notice.
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