Corrosion-resistant cable material

Abstract

The invention discloses a corrosion-resistant cable material. The corrosion-resistant cable material comprises, 30-40 parts of nitrile rubber, 30-40 parts of fluororubber, 20-30 parts of acrylate monomer, 20-30 parts of modified imidazole-castor seed oil micro-nano capsule particles, 15-20 parts of silsesquioxane nanoparticles, 10-20 parts of carboxymethyl chitosan, 5-10 parts of octamethyl, 6-9 parts of microcrystalline cellulose, 8-12 parts of a polymer initiator, 3-5 parts of a vulcanization accelerator, and 3-5 parts of a flame retardant. The cable material has an environment change response function, and in case of external mechanical damage, castor seed oil has a repairing function; when the external pH value is changed, modified imidazole has a corrosion resistance function so as toperform double protection on a cable core; and the cable material has an intelligent environment response function, the protection and the repair are carried out aiming at different damages, and thecable material has high corrosion resistance and high insulation property.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a corrosion-resistant cable material. Background technique [0002] Wires and cables used for power transmission and information transmission are widely used in industrialization and information society. A large number of wires and cables are produced and put into use in my country every year. Because the preparation materials of the cable sheath and insulating layer are mostly organic polymers, which carry a large amount of fire load, once the interconnected cables are on fire due to electrical faults such as arcs and short circuits, the toxic gas and heat released will seriously endanger people. health, and the cable fire also has a very strong spread. With the improvement of fire protection requirements, for some important places (such as nuclear power plants), it has been clearly required to use flame retardant cables, while typical resistance PVC cables release a lo...

AI Technical Summary

Problems solved by technology

[0003] During the use of the cable, frequent power on-off switching will cause the temperature to fluctuate greatly. Due to the frequent changes in temperature, the stress and strain of the cable material are called temperature self-stress and temperature self-strain. From a mechanical point of view, it belongs to compressive stress and compression. The strain property is mainly due to the constraints of the terminal and joint space, which will lead to cable fatigue, increased plastic deformation, and increased shrinkage. Unlike ordinary "thermal expansion and contraction", thermal contraction is an irreversible process, so It will affect the insulation life and performance. The temperature change of the sheath material is smaller than that of the insulation sheath, but the fatigue creep will also affect the cable protection life to a certain extent.

[0004] At the same time, the sheath and insulation layer will be gradually corroded due to the humidity of the environment or air oxidation of the cable material during use, and the cable core will be exposed to the air or multiple cable cores will contact each other to generate an arc, resulting in a short circuit and large-scale power outages. but also prone to fire

[0005] At present, corrosion-resistant cable materials generally introduce corrosion-resistant agents directly into the polymer of the corrosion-resistant layer, but this will cause the corrosion-resistant agent to react with the polymer, resulting in the failure of the corrosion-resistant agent and the reduction of the corrosion-resistant properties of the polymer.