Strong-acid-resistant high-temperature-resistant silicone rubber cable and processing technology thereof

By using a multi-layered structural design and the application of modified materials, the performance degradation problem of silicone rubber cables in strong acid and high temperature environments has been solved, and the corrosion resistance, high temperature resistance, mechanical properties, and electrical properties have been improved to meet the needs of complex industrial environments.

CN121905628AActive Publication Date: 2026-04-21FAR EAST CABLE +2
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Patent Information

Application Number
CN202610370024.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-25
Publication Date
2026-04-21
Estimated Expiration
2046-03-25

AI Technical Summary

Technical Problem

Existing silicone rubber cables exhibit performance degradation under conditions of strong acid and high temperature, failing to simultaneously meet the requirements for corrosion resistance, high temperature resistance, mechanical properties, and electrical properties. Furthermore, their unstable structure makes them unsuitable for complex industrial environments.

Method used

It adopts a multi-layer structure design, including multi-core insulated wire cores, filling layer, shielding layer, optical fiber unit, buffer layer, fluorocarbon protective layer and corrosion resistant sheath layer from the inside out. Modified silicone rubber and ceramicized silicone rubber materials are used, and conductor anti-corrosion base coating and hydrophobic anti-permeability interlayer are added. The insulation layer and sheath layer formulas are optimized and combined with conventional processing technology.

Benefits of technology

It maintains cable structural stability in strong acid and high temperature environments, prevents corrosion and penetration, ensures mechanical strength and electrical performance, realizes optoelectronic integrated transmission, adapts to extreme industrial environments, and has a simple process that is easy to industrialize.

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Abstract

The invention relates to the technical field of cables, in particular to a strong-acid-resistant and high-temperature-resistant silicone rubber cable and a processing technology thereof.The strong-acid-resistant and high-temperature-resistant silicone rubber cable sequentially comprises a multi-core insulating wire core, a filling layer, a cabling cable core wrapping tape, a shielding layer, an optical fiber unit, a buffer layer, a fluorocarbon protective layer and a corrosion-resistant and high-temperature-resistant sheath layer from inside to outside. Through the multi-layer protection design of the conductor anticorrosion priming coat, the insulating layer fluorosilicone resin protection layer, the filling layer-wrapping tape-buffer layer ceramic silicone rubber synergistic protection, the hydrophobic anti-permeation interlayer and the sheath layer acid-resistant filler, a compact acid-resistant protection system is formed, the cable is soaked in sulfuric acid / hydrochloric acid with the concentration of 50% and the temperature of 250 DEG C for 720 h, and the cable has the good anti-corrosion performance. The sheath layer and the wrapping tape do not crack, swell or fall off, the insulation performance is not obviously reduced, the problem that an existing cable is prone to aging and damage under strong acid is solved, double corrosion prevention of the conductor is achieved, and strong acid corrosion is thoroughly avoided.
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