Marine cable sheathing compound

    This product is produced according to GB/T 7594.9-87 standards; ordinary duty flame-retardant rubber sheath 85 Centigrade.
    List 2  Indicator requirements and measured performance                        

    No. Test item Unit Requirements Results
    Before aging Tensile strength       Mpa ≥10.0 11.9
    Elongation at break     ％ ≥300 457
      Air oven aging test Ageing condition Temperature ºC 100±2 100±2
    Time h 7×24 7×24
    Change rate of anti-expansion strength ％ ±30 -6
    Elongation at break after aging Median ％ ≥250 425
    Change rate   ％ ±40 -7
    Thermal extension test Test conditions Air temperature ºC 200±3 200±3
    Load time min 15 15
    Mechanical stress N/cm2 20 20
    Elongation under load   ％ ≤175 15
    Permanent deformation after cooling    ％ ≤15 8.6
    Oil immersion test Test conditions Oil temperature ºC 100±2 100±2
    Oil immersion time h 24 24
    Tensile strength change rate   ％ ±40 -5
    Change rate of elongation at break  ％ ±40 2



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