Loading Port:Shanghai
Payment Terms:TT OR LC
Min Order Qty:-
Supply Capability:3000 Tons kg/month
EPDM insulating rubber compound
I. Type and application
Type | Product | Application |
XJ-50A | 110℃ Insulating rubber compound.EVA | Heat resistant insulating rubber compound for cables and wires,EVA |
XJ-30A | 90℃ Insulating rubber compound | Heat resistant insulating rubber compound for cables and wires |
XJ-30B | 90℃ Insulating rubber compound | Heat resistant insulating rubber compound for 0.6/1KV cables and wires |
XJ-30F | 90℃Irradiation cross-linkable insulating EPDM rubber compound | Heat resistant EPDM insulating compound which processing in plastic extruder. |
XJ-60A | 125℃ Insulating rubber compound | Heat resistant insulating rubber compound for maximum 1KV cables and wires |
II. Product description
EPDMinsulating rubber compound, based on EPDM rubber, is mixed with variousadditives, and is elaborated in the extra-clean conditions. It has varioustemp. grades. The compound has outstanding performances of vulcanization, processing, physical,mechanical, aging and electrical properties. The compound is complied withQ/320585JSDT058-2003 standard.
III. Processing
Type | Processing Equipment | Compression ratio | L/D | Processing temp. | Recommended vulcanize temp. |
XJ-50A XJ-30A XJ-30B XJ-60A | Common rubber extruder | 1.1：1～1.5：1 | 15：1～20：1 | 60～110℃ | 160-200℃ |
XJ-30F | Common rubber extruder | 1.1：1～1.5：1 | 20：1～25：1 | 110～180℃ | 15-20 megarad irradiation dosage |
IV. Maximum useful shelf life
12 monthsat 20℃, 6months at 30℃.
V. Properties
Table
Item | XJ-50A | XJ-30A | XJ-30B | XJ-30F | XJ-60A | |||||
Standard | Typical | Standard | Typical | Standard | Typical | Standard | Typical | Standard | Typical | |
Tensile Strength N/mm2 | ≥6.5 | 12.0 | ≥4.2 | 6.5 | ≥8.5 | 11.0 | ≥4.2 | 9.6 | ≥8.5 | 12.2 |
Elongation at Break % | ≥200 | 280 | ≥200 | 280 | ≥200 | 400 | ≥200 | 350 | ≥200 | 450 |
Oven aging 135℃240h | 150℃240h | 135℃168h | 135℃168h | 135℃168h | 158℃168h | |||||
Variation on Tensile Strength % | ≤±30 | +5 | ±30 | -10.8 | ±30 | +5 | ±30 | +5 | ±30 | +9.5 |
Variation on Elongation at Break % | ≤±30 | -6 | ±30 | -10.7 | ±30 | -11 | ±30 | -9.5 | ±30 | -8.0 |
Dielectric Strength MV/m | ≥25 | 26 | ≥25 | 28 | ≥25 | 28 | ≥25 | 27 | ≥25 | 30 |
Air bomb aging test 127℃40h |
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Tensile Strength N/mm2 | ≥6.0 | 11.3 | ≥6.0 | 6.0 |
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Variation % |
| -6 | ±30 | -8.3 | ±30 | -8 | ±30 | -4 | ±30 | -6 |
Elongation at Break % |
| 240 |
| 270 |
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Variation % | ≤-30 | -15 | ±30 | -3.6 | ±30 | -6 | ±30 | -5 | ±30 | +3 |
Hot Prolongation 250℃ | 15min20N/cm | 15min20N/cm | 15min20N/cm | 15min20N/cm | 15min20N/cm | |||||
Elongation Under Load % | ≤100 | 60 | ≤175 | 60 | ≤175 | 60 | ≤175 | 70 | ≤175 | 50 |
Permanent Elongation after cooling % | ≤25 | 10 | ≤15 | 10 | ≤15 | 10 | ≤15 | 10 | ≤15 | 10 |
Volume Resistivity at 20℃Ω﹒m | ≥1.0×1010 | 2.5×1012 | ≥1.0×1010 | 1.2×1012 | ≥1.0×1010 | 1.5×1013 | ≥1.0×1010 | 8.5×1012 | ≥1.0×1010 | 2.0×1013 |
Elastic Modulus |
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At 150% ElongationN/mm2 |
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| ≥4.5 | 5.5 |
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| ≥4.5 | 6.5 |
At 50% Elongation N/mm2 |
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| ≤7.5 | 6.1 |
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| ≤7.5 | 5.0 |
Capacitance variation after water immersion 50±2℃ |
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Between one day and seven days % |
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| ≤15 | 10 |
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| ≤15 | 8 |
Between seven days and fourteen days % |
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| ≤5 | 2 |
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| ≤5 | 2 |
Hardness IRHD |
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| ≥80 | 80 |
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| ≥80 | 80 |
Ozone Resistance and Ozone Concentration |
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| 0.025-0.030%30h | 2-3.33PPM | 0.025-0.030%30h | 2-3.33PPM | ||||
Surface Variation |
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| Non cracking | Non cracking | Non cracking | Pass | Non cracking | Non cracking | Non cracking | Pass |
Heat Pressing Deformation 150℃0.5h |
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Pressing Depth % | ≤50 | 25 |
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