Functional master batch added to polyethylene for underground cable

Abstract

The invention relates to the field of functional master batches, and discloses a functional master batch added to polyethylene for an underground cable. The functional master batch added to the polyethylene for the underground cable is prepared from the following components in parts by weight: 80 to 100 parts of a carrier resin, 20 to 25 parts of micron-grade volcanic ash, 10 to 15 parts of polystyrene foam, 5 to 7 parts of an antibacterial agent, 10 to 15 parts of a curing agent and 0.8 to 1.2 parts of a dispersing agent, wherein the carrier resin is polyethylene resin; the antibacterial agent is prepared from the components of copper sulfate and silver ion antibacterial agent in the weight part ratio of 1:(0.5-0.7); a curing agent is sulfur preferably; the dispersing agent is oxidized polyethylene wax preferably. According to the functional master batch disclosed by the invention, calcium oxide and volcanic ash are utilized, so that a polyethylene material for the underground cable is gradually hardened to form a hardened protective layer in use; therefore, the polyethylene material for the underground cable has good properties of moisture and cold heat resistance, bacterial resistance, water soaking resistance and corrosion resistance; the use safety of the underground cable is ensured; the service life of the underground cable is prolonged.

Description

technical field [0001] The invention relates to the field of functional masterbatches, in particular to a functional masterbatch for improving the corrosion resistance of polyethylene materials used for underground cables. Background technique [0002] Polyethylene (PE) is a thermoplastic resin produced by ethylene polymerization. It has excellent electrical insulation properties, chemical stability, low water absorption and can withstand most acid and alkali corrosion. Therefore, it is now used instead of neoprene as cables or Plastics for insulation and sheathing of optical cables. However, the mechanical properties and low temperature resistance of polyethylene cannot reach the level of neoprene, especially for cables or optical cables buried underground. Because polyethylene is not resistant to humidity, cold and heat, and has weak antibacterial ability, long-term burial in the ground will lead to corrosion of cables, which will affect the service life and safety of cab...

AI Technical Summary

Problems solved by technology

However, the ability of the polyethylene material to withstand underground humidity, cold, heat, and bacterial erosion is average, so that the corrosion resistance of the polyethylene material is not strong, and it is still not suitable for use as an underground cable material.

At the same time, various powdery substances directly added may be unevenly dispersed, resulting in different properties of polyethylene materials