公司信息及水印
牌号简介 About |
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Visico™ LE4421/LE4432是一种用于低压绝缘的防焦、湿交联聚乙烯化合物。Visico基料LE4421和黑锡催化剂母粒LE4432的组合提供了一种具有优异热稳定性的高度烧焦阻燃化合物。LE4421/LE4432含有一种获得专利的防焦添加剂(SRA),它增加了湿交联化合物的处理窗口,并最大限度地减少了挤出机、机头或模具中过早交联的趋势。应通过10份LE4432至90份LE4421的干混,将LE4432直接添加到挤出机料斗中的L E4421中。除催化剂外,LE4432还提供含有适当抗氧化剂、金属钝化剂和25%的细颗粒炭黑负载的稳定包装,以防紫外线天气。适当混合后,在挤出过程中,LE4421/LE4432具有优异的氧化热稳定性。最终绝缘或护套也将含有2.5%的合适炭黑,以确保令人满意的紫外线风化稳定性。建议将LE4421.LE4432用作额定电压不超过6 kV的低压控制电缆和电力电缆的绝缘材料。Visico™ LE4421/LE4432可以满足各种国际规格和标准时,生产使用良好的商业挤压实践。NBN C 33-321 ASTM D 2655 EC 502 NF C32-090 NF C33-210保险商实验室类型使用和使用标准854-2加拿大标准协会C22.2第1790-00号-机场系列照明电缆和C22.2第38号电缆类型RW-90室外HD 603 S1 Visico LE4421/LE4432 is a scorch retardant, moisture-crosslinking polyethylene compound for low voltage insulation The combination of a VISICO base material, LE4421, and a black tin catalyst masterbatch, LE4432, provides a highly scorch retardant compound with excellent thermal stability. LE4421/LE4432 contains a patented scorch retardant additive (SRA) that increases the processing window for a moisture crosslinking compound and minimizes the tendency for premature crosslinking in the extruder, head or die. LE4432 should be added to L E4421 directly in the extruder hopper by dry blending at a ratio of 10 parts LE4432 to 90 parts LE4421. LE4432 also provides, in addition to catalyst, a stabilization package containing suitable antioxidants, a metal deactivator and a 25% loading of a fine particle size carbon black for UV weather resistance. Properly mixed, during the extrusion process, LE4421/LE4432 exhibits excellent thermal stability to oxidation. The final insulation or jacketing will also contain 2.5% of a suitable carbon black to ensure satisfactory UV weathering stability. Application LE4421.LE4432 is recommended for use as insulation for low voltage control cables and power cables up to 6 kv in rating. Specifications Visico LE4421/LE4432 can meet a variety of international specifications and standards when produced using sound commercial extrusion practice. NBN C 33-321 Canadian Standards Association C22.2 No. 1790-00-Airport Series Lighting Cables and C22.2 No. 38 Cable Type RW- 90 Outdoor ASTM D 2655 EC 502 NF C32-090 HD 603 S1 NF C33-210 Underwriters Laboratories Standards 854 for types USE and USE-2 |
技术参数 Technical Data | |||
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物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density |
ASTM D792 | ||
-- -- 2 |
0.923 | g/cm³ | ASTM D792 |
-- -- 3 |
1.05 | g/cm³ | ASTM D792 |
熔体质量流动速率 Melt Flow Rate 2 |
0.90 | g/10min | ASTM D1238 |
弹性体 elastic body |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸强度 tensile strength |
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屈服 yield |
15.0 | MPa | ASTM D412 |
拉伸应变 Tensile strain |
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断裂 fracture |
300 | % | ASTM D412 |
热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
高温蠕变 High temperature creep |
ICEA T-28-562 | ||
150℃ 150℃ 4 |
% | ICEA T-28-562 | |
150℃ 150℃ 5 |
% | ICEA T-28-562 | |
老化性能 Aging performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
拉伸性能的保留率 Retention rate of tensile performance 6 |
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121℃ 121℃ 6 |
% | ||
电气性能 Electrical performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
体积电阻率 Volume resistivity |
ohms·cm | ASTM D257 | |
介电强度 Dielectric strength |
kV/mm | ||
介电常数 Dielectric constant |
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23 ℃,60 Hz 23 ℃,60 Hz |
ASTM D2520 | ||
耗散因数 Dissipation factor |
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23℃,60 Hz 23℃,60 Hz |
ASTM D150 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 LE4421 |
3 LE4432 |
4 Permanent deformation, 0.20 MPa |
5 Elongation under load, 0.20 MPa |
6 After Ageing 7 d |
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