XLPE-UV cable insulation material

Product Introduction

The UV-crosslinked polyethylene insulation material series products are mainly made of polyethylene as raw material, with photoinitiators, crosslinkers, antioxidants and processing aids added, and are made by twin-screw extrusion and granulation. The products have excellent mechanical properties and strong resistance to environmental stress cracking; they are easy to process and have a fine and smooth surface.

Application

The products reach the crosslinked state after being irradiated by LED UV crosslinking equipment in the molten state, which fully complies with the JB/T10437-2004 standard.

XLPE-UV cable insulation is a special type of crosslinked polyethylene (Crosslinked Polyethylene) that is irradiated with ultraviolet (UV) light during production to achieve better physical and chemical properties. This material is widely used in medium and high voltage power cables due to its excellent electrical, thermal and mechanical properties.

To improve the physical properties of XLPE, physical entanglement can be increased by doping with low levels of polyolefin materials such as LLDPE or HDPE. This new XLPE insulation material has significantly improved mechanical properties at high temperatures, while the mechanical properties at room temperature are slightly improved. By adding HDPE or LLDPE, the physical entanglement of the XLPE molecular chains can be increased, which, like the crosslinking points formed by chemical crosslinking, can enhance the mechanical properties of XLPE insulation. This shows that it is possible to reduce the concentration of crosslinkers during the XLPE cable manufacturing process while maintaining electrical properties and improving mechanical properties at high temperatures.