Product description 产品描述
Polypropylene insulation compound is a kind of mixing modification compounds, which regard polypropylene resin as the basic raw material. This product has excellent electricity property, physical and mechanical property, and high-low temperature resistant properties. It not only can be used for the insulation of in-house communication cables, but also for the insulations of high-temperature resistant and anti-fold situations.
聚丙烯绝缘料是以聚丙烯为主的共混改性材料，具有优异的电气性能，物理机械性能和耐高低温性能，可以用于市内通信电缆的绝缘，也可以用于耐高温、耐折场合的绝缘。
Processing Indicator 加工工艺
There are smooth surface and extruding quantity if the extruding conditions are not strictly required. If condition permits, please pre-dry the compounds under 80~90℃for 1-2 hours.
PJ105在较宽的挤出条件下，可获得优良的表面光滑度和挤出量。如果条件允许，最好在使用前进行预干燥处理，干燥温度为80~90℃，干燥时间1~2小时。
Model
牌号 |
Machine Barrel Temperature
机筒温度 |
Molding Temprature
机头温度 |
| PJ105 |
180-220℃ |
230-245℃ |
These temperatures are for reference only , and can be adjusted according to the different structures of extruder and screw.以上温度仅作参考，根据挤出机及螺杆结构的不同，可相应调整。
Physical and Electrical Properties 物理和电气性能
Item
试验项目 |
Unit
单位 |
Technical requirements
技术要求 |
Melt Flow Rate
熔体流动速率 |
g/10min |
2.5 |
Density
密度 |
g/cm3 |
0.91 |
Tensile Strength
拉伸强度 |
MPa |
21 |
Elongation at Break
断裂伸长率 |
% |
600 |
Brittle Temperature with Low Temperature
低温脆化温度 |
℃ |
- 35 |
20℃Volume Resistivity
20℃体积电阻率 |
Ω·m |
1.6×1014 |
Dielectric Strength,50Hz
介电强度, 50Hz |
MV/m |
35 |
20℃Dielectric Constant
介电常数 |
--- |
2.22 |
Dielectric Dissipation Factor
介质损耗因数 |
--- |
0.0003 |
Aging conditions of Hot air
热空气老化条件
135℃×168h |
Tensile Strength Variation After Aging
拉伸强度变化率 |
% |
±25 |
Elongation Variation After Aging
断裂伸长变化率 |
% |
±25 |
