| Essentials |
Asaprene™ E30 is a block SBR
with low Mooney viscosity and high styrene content.
It is particularly effective for obtaining low compression
set and low heat buildup. It is supplied in 35-kg
bales.
Contact
us for information on handling and use.
|
|
| Applications |
| Targeted fields of
application include industrial products and footwear. |
|
| Basic characteristics of typical
silica-dispersed Asaprene™ E30 formulation1 |
| Property |
E30 |
Asaprene™
303 |
| Polymer |
Styrene content (%)
|
46 |
46 |
| Mooney viscosity, ML1+4,
100°C |
60 |
45 |
| Formulation
Mooney viscosity, ML1+4, 100°C |
67 |
70 |
| Hardness,
Shore A |
75 |
65 |
Tensile
properties, 23°C
|
100% tensile stress
(MPa) |
4.0 |
1.9 |
| 300% tensile stress
(MPa) |
13.3 |
7.3 |
| Tensile strength (MPa) |
18.3 |
25.1 |
| Elongation at break
(%) |
420 |
600 |
| Lupke rebound
resilience2 |
0°C (%) |
4.6 |
31.0 |
| 23°C (%) |
23.8 |
50.0 |
| 50°C (%) |
52.5 |
61.0 |
| Akron abrasion
(cc) |
0.117 |
0.188 |
| Goodrich
heat buildup, T (°C) |
34 |
28 |
| Compression
set, 70°C, 22 hr (%) |
16 |
20 |
| Payne effect,
G', 0°C (MPa) |
15.60 |
4.97 |
| Payne effect,
G', 50°C (MPa) |
0.97 |
2.57 |
|
1 Rubber (E30 or Asaprene™
303)/silica/naphthenic oil/silane coupling agent (Degussa Si69)
= 100/40/5/2 wt parts.
2 Test method: New
JIS K 6255.
| Basic characteristics of typical
silica compound rubber formulations1 with Asaprene™
E30 and with Asaprene™ E30 masterbatch. |
| |
Alone |
NR blends |
#1502
blends |
| E30 |
100 |
50 |
— |
50 |
— |
| E30 masterbatch |
— |
— |
50 |
— |
50 |
| #1502 |
— |
— |
— |
50 |
50 |
| NR |
— |
50 |
50 |
— |
— |
| Formulation
Mooney viscosity, ML1+4, 100°C |
67 |
56 |
53 |
72 |
71 |
| Hardness,
Shore A |
75 |
71 |
67 |
75 |
71 |
| Tensile
properties, 23°C |
100% tensile
stress (MPa) |
4.0 |
2.9 |
2.7 |
2.8 |
3.0 |
| 300% tensile
stress (MPa) |
13.3 |
9.8 |
10.6 |
9.4 |
11.7 |
| Tensile
strength (MPa) |
18.3 |
25.0 |
24.0 |
21.2 |
21.2 |
| Elongation
at break (%) |
420 |
580 |
550 |
530 |
480 |
| Lupke
rebound resilience2 |
0°C
(%) |
4.6 |
7.7 |
7.0 |
11.0 |
11.0 |
| 23°C
(%) |
23.8 |
35.5 |
37.0 |
32.5 |
37.5 |
| 50°C
(%) |
52.5 |
58.5 |
62.5 |
51.5 |
58.0 |
| Akron abrasion
(cc) |
0.117 |
0.184 |
0.174 |
0.105 |
0.100 |
| Goodrich
heat buildup, T (°C) |
34 |
25 |
24 |
29 |
26 |
| Compression
set, 70°C, 22hr (%) |
16 |
21 |
18 |
16 |
14 |
| Payne effect,
G', 0°C (MPa) |
15.60 |
11.00 |
7.84 |
12.85 |
6.16 |
| Payne effect,
G', 50°C (MPa) |
0.97 |
2.29 |
0.80 |
2.98 |
0.91 |
|
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.
|
