Degradable electric-insulation material

Abstract

The invention discloses a degradable electric-insulation material which is prepared by the following steps: adding the following raw materials in parts by weight into a centrifugal machine: 50-60 parts of L-polylactic acid, 30-40 parts of bacterial cellulose, 10-20 parts of crosslinked polyethylene, 20-30 parts of halogen-containing flame-retardant material, 5-10 parts of halogen-containing flame retardant, 5-20 parts of decabromodiphenylethane, 5-15 parts of hydroxyethyl cellulose, 20-30 parts of glass fiber, 10-20 parts of starch ether, 20-30 parts of polycarbonate, 10-15 parts of polyvinyl alcohol, 20-25 parts of ethylene-propylene rubber and 5-10 parts of silane coupling agent; uniformly mixing, sending into a double screw extruder to extrude into a molten state, controlling the temperature at 180-200 DEG C, quickly injecting the molten mass into a mold by using an injection machine, and trimming in the auxiliary mold by using a cutting machine. The electric material has the advantages of excellent mechanical properties, excellent cold / heat stability, excellent flame retardancy and high biodegradability, and is hopeful to be widely used as a novel insulation material.

Description

technical field [0001] The invention belongs to the technical field of insulating materials, in particular to a degradable electric insulating material. Background technique [0002] Power cables are generally laid below the surface and are often used as power lead-in or lead-out lines for power plants, substations, and factories and mines. Compared with overhead lines, power cables are less affected by the climate because they are laid below the ground surface, are safe, reliable, concealed and durable, but the cost of materials, laying costs, and maintenance costs are relatively high, and maintenance and troubleshooting are also more difficult. Low-voltage distribution networks and electrical equipment wires and cables often use plastic sheathed wires with PVC sheaths as power transmission lines. These wires are generally buried in walls or under the ground through pipes, and can also be laid in the form of open laying. Sparks generated by poor insulation of wires often e...

AI Technical Summary

Problems solved by technology

Improper application of insulating materials may also cause the greenhouse effect, destroy the ozone layer, and form acid rain, etc.

The application of insulating materials for wire and cable should comprehensively consider the stability of the chemical composition of the material, such as controlling the amount of PFC and HFC materials, and recycling insulating materials that have environmental pollution effects. The landfill method occupies a large amount of land, and the insoluble waste causes soil degradation and persistent organic pollution. Once it enters the biological cycle, it will endanger human health. The incineration method produces such as HCl, CO, SO 2 Harmful gases such as harmful gases cause secondary pollution to the environment, further deteriorating the living environment of human beings

Images