Environmentally-friendly acid-and alkali-resistant wire

Abstract

The invention discloses an environmentally-friendly acid-and alkali-resistant wire. The environmentally-friendly acid-and alkali-resistant wire comprises seven outer protective layers and one kind of conductors; the seven outer protective layers include a galvanized annealed copper strip shielding layer, a nitrile insulation layer, a silver plated copper strip armor layer, a nickel strip shielding layer, an aluminum strip shielding layer, a chlorosulfonated ethylene-propylene polymer sheath layer and a rubber insulation layer which are distributed from inside to outside sequentially; the conductors are silver-plated annealed nickel conductors; and 24 silver-plated annealed nickel conductors are adopted. The raw materials in parts by weight of the rubber insulation layer include chlorinated polyethylene rubber, flame retardant, ethylene-vinyl acetate copolymer elastomer, barium sulfate, microcrystalline wax, carbon black, DOS, high-activity magnesium oxide, antimony oxide, DCP, TAIC, coupling agent and antioxidant. The environmentally-friendly acid-and alkali-resistant wire of the invention has the advantages of high acid and alkali resistance, environmental friendliness, inflame retardant performance, high temperature resistance and low temperature resistance, and can satisfy the needs of special cables such as acid and alkali resistant cables. According to the environmentally-friendly acid-and alkali-resistant wire of the invention, magnesium hydroxide or aluminum hydroxide is adopted to make the fire retardant, and therefore, requirements of a material system for flame retardant performance, low smoke zero and halogen-free performance can be satisfied.

Description

technical field [0001] The invention relates to an electric wire, in particular to an environment-friendly acid and alkali resistant electric wire. Background technique [0002] Cables and wires are a kind of conductive medium. In the current industrial society, electric energy is a very important energy source, and the most important and main way or intermediary of electric energy transmission is cables and wires. [0003] At present, in some special fields, such as sewage treatment plants, thermal power plants, chemical plants, smelting plants and other places, due to the special environment, the cables used in these places need to have better acid and alkali corrosion resistance . At present, domestic acid and alkali-resistant cables are basically fluoroplastic cables and silicone rubber cables. Fluoroplastics have excellent acid and alkali resistance, but they have extremely high requirements for processing equipment and production technology, and they are easy to crack...

AI Technical Summary

Problems solved by technology

At present, domestic acid and alkali-resistant cables are basically fluoroplastic cables and silicone rubber cables. Fluoroplastics have excellent acid and alkali resistance, but they have extremely high requirements for processing equipment and production technology, and they are easy to crack if they are slightly improper. Fluoroplastics are expensive, and it is difficult to produce large cross-section cables; silicone rubber cables have excellent acid and alkali resistance. Compared with fluoroplastics, they have lower requirements for processing equipment and production technology, and are also more expensive Low, wide coverage of specifications, but the silicone rubber cable has a dense flaw, that is, extremely poor mechanical properties, poor resistance to external force damage in some frequent bending occasions, and low service life

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