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Description of products
KJWDZ-YJ-H90 x KJWDZ-YJ-H105 . KJWDZ-YJ-H125 . KJWDZ-YJ?H150 是可輻照交聯(lián)低煙無鹵阻燃護(hù)套 料。不含汞，鉛，銘，鐐，鎰，鎘六大重金屬，其各項(xiàng)性能符合RoHS指令和REACH法規(guī)的相關(guān)要求。產(chǎn)品具有 良好的阻燃性能物理機(jī)械性能和較好的耐溫性能。適用于通信電纜、控制電纜和電力電纜的護(hù)套層。
Main performance indicators
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Item
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Unit
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Technical requirements
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KJWDZ-YJ-H 90
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KJWDZ-YJ-H 105
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KJWDZ-YJ-H 125
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KJWDZ-YJ-H 150
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Density
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g/cm3
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<1.55
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<1.55
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£1.55
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G.55
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tensile strength
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Mpa
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>10
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>10
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>10
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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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>150
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>150
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>150
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thermal ageing condition
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120°Cx168h
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135°Cx168h
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158°Cx168h
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180°Cx168h
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tensile strength gradient
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%
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±25
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±25
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±25
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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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±25
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±25
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±25
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thermal extension 200°C*15min *0.2MPa
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elongation under load
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%
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<100
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<100
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<100
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<100
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permanent deformation after cooling
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%
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<25
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<25
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<25
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<25
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dielectric strength
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MV/m
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>18
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>18
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>18
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>18
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20°Cvolume resistivity
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Q?m
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>1x1010
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>1x1010
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>1x10,0
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>1x10,0
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low temperature impact embrittlement temperature
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°C
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-30
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-30
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-30
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-30
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oxygen index
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%
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>32
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>32
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>32
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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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<5
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<5
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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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>4.3
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>4.3
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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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<10
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<10
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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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<5.0
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<5.0
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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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<350
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<350
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<350
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with flame
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<100
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<100
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<100
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<100
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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 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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KJWDZ-YJ-H90、KJWDZ-YJ-H105、 KJWDZ-YJ-H125 . KJWDZ-YJ-H 150
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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 H 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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