公司信息及水印
牌号简介 About |
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Visico™ LE4423/LE4437是一种用于低压绝缘的防焦、湿交联聚乙烯化合物。 Visico LE4423/LE4437 is a scorch retardant, moisture-crosslinking polyethylene compound for low voltage insulation The combination of a VISICO base material, LE4423, and a tin catalyst masterbatch, LE4437, provides a highly scorch retardant compound with excellent thermal stability. LE4423/LE4437 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. LE4437 should be added to LE4423 directly in the extruder hopper by dry blending a ratio of 5 parts LE4437 to 95 parts LE4423. LE4437 also provides, in addition to catalyst, a stabilizaton package containing suitable antioxidants, a metal passivator and a metal deactivator. Properly mixed, during the extrusion process, LE4423/LE4437 exhibits excellent thermal stability to oxidation. LE4423/LE4437 is readily pigmented to a variety of colors using standard wire & cable concentrates designed for thermoplastic or crosslinked polyethylene. UV weather resistance is obtained by the addition of a suitable carbon black or UV additive. Using VISICO LE4432 in place of LE4437 combines a tin catalyst along with the proper carbon black to provide a black, UV resistant, moisture crosslinking cable insulation. Specifications Visico LE4423/LE4437 meets the applicable requirements as below when processed using sound extrusion practice and testing procedure: Underwriters Laboratories Standards 854 for types USE and USE-2 EC 502 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 NF C33-210 HD 603 S1 NF C32-090 ASTM D 2655 Contact your Borealis representative for additional information. |
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 |
0.941 | 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 |
热固性 thermosetting |
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 |
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After Ageing 168 h,121℃ After Ageing 168 h,121℃ |
% | IEC 60811-1-2 | |
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 | ASTM D149 | |
介电常数 Dielectric constant |
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23 ℃,60 Hz 23 ℃,60 Hz |
ASTM D150 | ||
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 LE4423 |
3 LE4437 |
4 Elongation under load, 0.20 MPa |
5 Permanent deformation, 0.20 MPa |
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