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· Compound mix
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products
High tension mould pressing rubber
|
JF-1540A |
JF-1550A |
JF-1560A |
JF-1570A |
Appearance |
translucent, without obvious mechanical impurities |
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Density g/cm3 |
1.13± 0.05 |
1.15±0.05 |
1.18±0.05 |
1.21±0.05 |
Hardness, Shore A |
40±2 |
50±2 |
60±2 |
70±2 |
Tensile strength, MPa≥ |
7.5 |
8.0 |
7.5 |
7.0 |
Elongation at failure, %≥ |
800 |
600 |
400 |
300 |
Permanent set at break, %≤ |
10 |
8 |
6 |
6 |
Tear strength, kN/m≥ |
22 |
24 |
24 |
24 |
Volume resistivity, Ω·cm≥ |
3.0×1014 |
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Dielectric strength, kV/mm≥ |
20 |
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Physical and mechanical performance indexes are Once vulcanization data, electrical property indexes are Secondary vulcanization data
Once vulcanization condition for experimental sheet: 175℃×5min Secondary vulcanization condition: 200℃×3hr
Vulcanizing agent: DHBP (active matter is 80%), dosage 0.7%
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