Component
Thermoplastic polyurethane elastomer TPU
Characteristic
Super light weight
Clean and environmental friendly
Outstanding resilience
Good cushion performance
Excellent low temperature resistance
Excellent yellowing resistance
Basic Physical Properties
Test Item
|
Test Method
|
Unit
|
12
|
16
|
18
|
20
|
Density
|
ISO 845:2006
|
g/cm³
|
0.12±0.02
|
0.15±0.02
|
0.17±0.02
|
0.19±0.02
|
Hardness
|
SATRA TM 205-16
|
Shore C
|
23±4
|
27±4
|
31±4
|
36±4
|
Size
|
-
|
Length mm Width mm Thick mm
|
1950-2000 1250-1300 27-29 |
1800-1900 1170-1220 23-25 |
|
1800-1850 1150 21-23 |
Colour fastness
|
GB250-1995 30 days of sunshine
|
-
|
4-5
|
Heat resistance
|
70℃-24h 85℃-24h
|
%
|
<1 2~4
|
Appearance
|
-
|
-
|
|
SEM
|
-
|
-
|
|
Test results of mechanical properties
Test Item
|
Test Method
|
Unit
|
12
|
16 |
18 |
20 |
Compression Set
|
ASTM D395 50℃-6h-30min
|
%
|
45.92 |
38.80 |
31.69 |
22.79 |
ASTM D395 50℃-6h-24h
|
%
|
18.15 |
15.46 |
13.54 |
13.41 |
Compression Set
|
SC 25℃-6h-30min
|
%
|
20.93 |
14.16 |
8.8 |
6.83 |
SC 25℃-6h-24h
|
%
|
13.4 |
6.83 |
3.18 |
2.19 |
Tensile Strength
|
ISO 1798:2008
|
MPa
|
3.76 |
4.42 |
5.07 |
5.89 |
Elongation at Break
|
ISO 1798:2008
|
%
|
296 |
295 |
242 |
236 |
10% Compress Pressure
|
ASTM- D1621-2010
|
MPa
|
0.031 |
0.040 |
0.046 |
0.080 |
50% Compress Pressure
|
ASTM-D1621-2010
|
MPa
|
0.152 |
0.177 |
0.187 |
0.234 |
Method A Tear Trouser Test
|
ISO 8067:2008
|
N/cm
|
30.46 |
34.45 |
38.44 |
43.43 |
Method B Tear Angle Test
|
ISO 8067:2008
|
N/cm
|
79.1 |
103.0 |
126.8 |
156.6 |
Resilience
|
ASTM D3574
|
%
|
74 |
72 |
69.5 |
65.2 |