• XJ-21A (General purpose flame retardant rubber insulation material)
XJ-21A (General purpose flame retardant rubber insulation material)
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XJ-21A (General purpose flame retardant rubber insulation material)

The XJ-21A flame retardant rubber insulation material produced by our company

Still deciding? Get the samples first,Contact us!

XJ-21A (General purpose flame retardant rubber insulation material)

The XJ-21A flame retardant rubber insulation material produced by our company

Still deciding? Get the samples first,Contact us!

  • Description
  • Product Description 
    The XJ-21A flame retardant rubber insulation material produced by our company is based on EPDM rubber and CPE rubber as the basic material, supplemented with reinforcing agents, softeners, fillers, anti-aging agents, vulcanizing agents, etc., which are fully mixed in an internal mixer. It is used for the insulation layer of wires and cables, and its performance meets the requirements of IE4 type products in GB5013-2008 standard. It has good heat resistance and excellent process performance. 
    Product Usage 
    This product can be used as an insulation material for general rubber sheathed cables and household appliance connecting wires, and can be used for a long time at temperatures ranging from -40 to 85 ℃. The color is originally white, but other color products can also be provided according to user requirements. 
    Overall performance indicators

    Test project

    Company

    GB5013 IE4

    Typical values

    Mechanical properties before aging

     

     

     

    Tensile strength

    MPa

    5.0

    6.5

    Elongation at break

    %

    200

    350

    Mechanical properties of air box after aging at 100 ℃ for 168 hours

    %

     

     

    Retention value of tensile strength

    MPa

    4.2

    5.5

    Change rate of tensile strength

    %

    -25~+25

    -15.4

    Retention value of elongation at break

    %

    200

    300

    Change rate of elongation at break

    %

    -25~+25

    -14.3

    Thermal extension test

     

     

     

    Experimental conditions 
    Test temperature 
    Load time 
    Mechanical stress

    °C 
    min 
    MPa

    200 
    15 
    0.2

     

    Elongation under load

    %

    ≤175

    40

    Permanent deformation after cooling

    %

    ≤25

    5

    Ozone resistance test

     

     

     

    Experimental conditions 
    Test temperature 
    Test time 
    Ozone concentration

    °C 
    h 
    %

    25±2 
    24 
    0.025~0.030

     

    Test result

     

    No cracks

    No cracks

    Electrical performance

     

     

     

    Room temperature volume resistivity

    Ω·cm

     

    5×1014

    Mooney viscosity ML (1+4), 100 ℃

     

     

    55

    Burning time (T5120 ℃)

    min

     

    >30

    Processing process parameters
    It can be extruded and produced on a regular rubber extruder, and it is recommended to use a CV (continuous vulcanization) production line.
    Extruder compression ratio: 1.1:1 to 1.5:1;
    Extruder length to diameter ratio: 6:1 to 16:1;
    Temperature setting: 60-80 ℃;
    Sulfurization temperature: It is recommended to maintain a temperature of 180-200 ℃ inside the vulcanization tube.
    Packaging and Storage
    The product is packaged in cardboard boxes and lined with polyethylene bags. The film shape is continuous film or provided according to user requirements, with a net weight of 25Kg per box and 20 bags as one supply unit. The safe use period at room temperature is one year. The product should be stored in a clean, dry, cool, and ventilated warehouse.

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