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Description of products
KJPE-ZPE8028C . KJPE-ZPE8029B . KJPE-ZPE8030A是以中高Density聚乙烯樹脂為主要原料，加入適量 的阻燃劑、抗氧劑等多種加工助劑，經(jīng)混合、塑化、擠出、造料而成，具有良好的抗開裂耐低溫性能，良好 的阻燃及加工性能，使用本材料生產(chǎn)的電纜可通過IEC60332規(guī)定的成束垂直燃燒試驗(yàn)，適用于中低壓電力 電纜等。
Main performance indicators
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Item
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Unit
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Technical requirements
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KJPE-ZPE8028C
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KJPE-ZPE8029B
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KJPE-ZPE8030A
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Density
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g/cm3
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W1.32
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W1.32
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W1.32
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tensile strength
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Mpa
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212.5
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>13
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>14
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elongation at break
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%
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2400
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2400
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2500
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thermal ageing 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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110°Cx240helongation 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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thermal deformation 70°Cx5h
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%
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<50
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<50
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<50
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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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20°Cvolume resistivity
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Ω?m
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21x10"
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21x10"
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21x10"
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low temperature impact embrittlement temperature
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°C
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-40
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-40
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-40
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oxygen index
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%
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>26
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>28
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>30
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carbon black content(for black sheath only)
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%
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3.0±1.0
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3.0±1.0
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3.0±1.0
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200°C oxidation induction time(OIT)
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min
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>30
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>30
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>30
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resistance to environmental stress crackingFo/h
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Fo/h
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>500
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>500
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2500
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thermal shock (130°Cx1h)
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/
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no cracking
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no cracking
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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-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.
| Model |
Barrel temperature |
Nose temperature |
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KJPE-ZPE8028C/KJPE-ZPE8029B/KJPE-ZPE8030A |
140~160°C |
150~170°C |
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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