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Description of products
KJWDZH-DMC is a low friction coefficient thermoplastic low smoke halogen free flame retardant sheath material. It has excellent mechanical and physical properties, flame retardant performance, temperature resistance, shrinkage resistance and heat resistance cracking performance, and the surface of the extrusion product is smooth and the friction coefficient is low. This product complies with the RoHS directive and REACH regulations related requirements, suitable for low friction coefficient of cable sheath layer.
Main performance indicators
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Item
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Unit
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Technical requirements
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KJWDZH-DMC
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Density
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g/cm3
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<1.55
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tensile strength
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Mpa
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>10
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elongation at break
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%
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>150
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thermal ageing1100 168h
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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 deformation 105°Cx5h
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%
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<50
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dielectric curvature
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MV/m
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>18
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2(rc foot resistivity
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Qm
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>1x1O,0
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low temperature for embrittlement of medium strike
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°C
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-30
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oxygen index
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%
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>32
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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
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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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trace level
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/
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no cracking
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Processing technology
This product processing performance is superior, suitable for extrusion pipe, half extrusion pipe, extrusion die extrusion. The length to diameter ratio of the extrusion screw is 18 ~ 25, the compression ratio is 3:1, and the temperature control in each area of the barrel should have a cooling device.
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Model
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barrel temperature
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head temperature
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KJWDZH-DMC
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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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