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> Characteristics of Tufprene™- and Asaprene™-modified
Asphalt |
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December
12, 2001
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Characteristics
of Tufprene™- and Asaprene™-modified Asphalt
Asphalt modified with
Tufprene™
and Asaprene™ series elastomers shows substantially
reduced temperature sensitivity, lengthened service life,
and other enhanced characteristics.
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Tufprene™
A |
Tufprene™
315 |
Asaprene™
T-437 |
Asaprene™
T-430 |
Asaprene™
T-411 |
Straight
asphalt
60-80 |
| Elastomer |
Styrene
content (wt%) |
40 |
20 |
30 |
30 |
30 |
-- |
MFR,
200°C, 5 kg load
(g/10 min) |
13 |
15 |
2 |
<1 |
<1 |
-- |
| Formulation |
Melt
viscosity, 200°C(cP) |
650 |
1,370 |
1,560 |
2,950 |
3,150 |
120 |
| Softening
point (°C) |
96 |
83.5 |
108 |
112.5 |
119.5 |
48 |
| Penetration
(1/10 mm) |
69 |
37 |
43 |
49 |
47 |
77 |
Tensile
properties |
Yield
strength
(kgf/cm2) |
1.4 |
1.9 |
1.4 |
1.5 |
1.4 |
0.3 |
Max.
stress
(kgf/cm2) |
-- |
-- |
3.7 |
4.4 |
5.1 |
-- |
| Elongation
(%) |
1,500 |
1,050 |
1,700 |
1,950 |
1,800 |
>3,000 |
Low
temperature bending test
(°C) |
0 |
-20 |
-5 |
-5 |
-5 |
10 |
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Formulation (parts): Elastomer (10); straight
asphalt 60-80 (90)
| Test
conditions: |
Melt viscosity:
Brookfield viscometer, 200°C
Softening point: R&B method
Penetration: 5 sec, 100 g, 25°C
Tensile properties: 100 mm/min, 23°C
Low temperature bending test: 15 mm dia. rods
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- Please note that all data and values
are given as typical results obtained with the indicated
test methods,
and not as any product specification or warranty of any
nature.
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