Environment-friendly submarine cable inner sheathing material with multiple protection effects and preparation method of inner sheathing material

Abstract

The invention discloses an environment-friendly submarine cable inner sheathing material with multiple protection effects and a preparation method of the inner sheathing material. The environment-friendly submarine cable inner sheathing material is prepared from components in parts by weight as follows: 68-88 parts of high-density polyethylene, 35-40 parts of fluorinated acrylate, 5-10 parts of a marine borer preventive agent, 20-30 parts of nano montmorillonite, 25-35 parts of mixed fibers, 1-5 parts of an antioxidant, 3-6 parts of nonylphenoxyacetic acid, 5-8 parts of eucommia rubber and 10-15 parts of tribehenin. By means of scientific formula design and a reasonable preparation process, the inner sheathing material integrates high strength, watertightness, fatigue resistance, high intensity and other protection functions, achieves the purpose that one protective layer replaces multiple protective layers and is non-toxic and environment-friendly, the radial size of a submarine cable is reduced, the cost is reduced, great convenience is brought to production, use and overhaul of the submarine cable, and the market prospect is wide.

Description

technical field [0001] The invention relates to the field of submarine cable sheath materials, in particular to an environment-friendly multi-effect protective submarine cable inner sheath material and a preparation method thereof. Background technique [0002] At present, the waterproof performance of conventional domestic submarine cables uses lead as the sheath. Lead is a heavy metal that causes serious pollution to the environment, water and soil. Lead is a multi-affinity poison that adversely affects multiple systems of the body after entering the body. , and has caused various physiological changes in the body at the clinical level, the most important thing is to affect the child's intellectual development and growth and development. Lead poisoning is regarded as the "first killer" of today's children's intelligence development. The invention adopts high-waterproof high-density polyethylene material to replace the lead sleeve as the phase-separated protective layer, wh...

AI Technical Summary

Problems solved by technology

In addition, in the preparation process of existing submarine cables, not only need to prepare a variety of materials, but also need to be coated layer by layer to achieve waterproof, insect-proof, anti-corrosion and other properties, which not only increases the cost and process difficulty, but also the prepared submarine cable Because there are many sheath layers, its diameter is often large, which is not conducive to installation and consignment, and brings great inconvenience to producers and users