
XJ-21A (General purpose flame retardant rubber insulation material)
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XJ-21A (General purpose flame retardant rubber insulation material)
Still deciding? Get the samples first,Contact us!
Product Category
- Description
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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 indicatorsTest 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
MPa200
15
0.2Elongation 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
0.025~0.030Test 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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