首页>
外国专利>
A NEW CROSSLINKED LOW MFR POLYMER COMPOSITION, POWER CABLE INSULATION AND POWER CABLE
A NEW CROSSLINKED LOW MFR POLYMER COMPOSITION, POWER CABLE INSULATION AND POWER CABLE
展开▼
机译:新型交联低MFR聚合物组成,电源电缆绝缘和电源电缆
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention relates to a crosslinked polymer composition, which is obtained by crosslinking a polymer composition, which polymer composition has a melt flow rate (MFR) of less than 1.7 and comprises a polyolefm, peroxide and sulphur containing antioxidant, characterised by that the crosslinked polymer composition has an Oxidation Induction Time, determined according to ASTM-D3895, ISO/CD 11357 and EN 728 using a Differential Scanning Calorimeter (DSC), which Oxidation Induction Time corresponds to Z minutes, and comprises an amount of peroxide by-products which corresponds to W ppm determined according to BTM2222 using HPLC, wherein Z1≦Z≦Z2, W1≦W≦W2, and W≦p−270*Z, wherein Z1 is 0, Z2 is 60, W1 is 0 and W2 is 9500, and p is 18500; and use thereof, a power cable insulation and a power cable, useful in high voltage (HV) and extra high voltage (EHV) cable applications direct current (DC) applications.
展开▼
机译:本发明涉及一种交联的聚合物组合物,其是通过使聚合物组合物交联而获得的,该聚合物组合物的熔体流动速率(MFR)小于1.7,并且包含聚烯烃,过氧化物和含硫的抗氧化剂,其特征在于,聚合物组合物具有氧化诱导时间,该氧化诱导时间是根据ASTM-D3895,ISO / CD 11357和EN 728使用差示扫描量热仪(DSC)确定的,该氧化诱导时间对应于Z分钟,并且包含一定量的过氧化物副产物对应于根据BTM2222使用HPLC测定的W ppm,其中Z1≦Z≦Z2,W1≦W≦W2,并且W≦p-270 * Z,其中Z1为0,Z2为60,W1为0,W2为9500, p是18500;以及在高压(HV)和超高压(EHV)电缆应用,直流(DC)应用中有用的电源电缆绝缘层和电源电缆及其用途。
展开▼