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Description of products
KJWDZ?H?FSis an anti-shrinkage thermoplastic low smoke halogen free flame retardant sheath material. Has excellent mechanical and physical properties, flame retardant performance, temperature resistance, shrinkage resistance and heat resistance cracking performance. This product can meet the temperature resistance class of 105°C without cross-linking. It complies with RoHS directive and REACH law. It is suitable for the sheath of power cable, communication cable and control cable.
Main performance indicators
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Item
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Unit
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Technical requirements
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KJWDZ-H-FS
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Density
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g/cm，
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.55
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tensile strength
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Mpa
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210
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elongation at break
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%
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2150
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thermal ageing 135°Cx168h
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tensile strength gradient
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%
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±25
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elongation at break gradient
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%
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±25
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thermal alteration ffJ105°Cx5h
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%
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《50
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dielectric strength
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MV/m
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218
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20°Cvolume resistivity
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Q?m
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^1x1O10
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low temperature impact embrittlement temperature
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°C
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-40
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oxygen index
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%
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232
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halogen acid gas content
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mg/g
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<5
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pH value
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/
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>4.3
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Electrical conductivity
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Us/mm
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《10
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toxicity index
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/
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<5.0
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smoke density
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flameless
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Ds max
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<350
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with flame
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<100
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heat cracking test 150°Cx7Kgx1h
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/
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no cracking
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shrinkage resistance test 95°C*5h shrinkage
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%
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<2
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Processing technology
This product processing performance is superior, suitable for extrusion pipe, half extrusion pipe, extrusion die extrusion. The length-diameter ratio of the extrusion screw is 18-25, the compression ratio is less than 3:1, and the temperature control in each area of the barrel should have a cooling device.
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barrel temperature
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head temperature
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KJWDZ-H-FS
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130~140°C
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150-160°C
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Notes
① Before processing, ensure that screw, barrel, hopper thoroughly clean, processing process is strictly prohibited to bring impurities.
② Once the raw materials are opened, it is recommended to use them within 24 hours. If the package is damaged, it should be dried before use.
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