Sheath material for seafloor communication optical cable and preparation method thereof

Abstract

The invention discloses a sheath material for a seafloor communication optical cable and a preparation method thereof. The sheath material for the seafloor communication optical cable is prepared from the following raw materials in parts by weight: 52-68 parts of high density polyethylene, 35-45 parts of reclaimed materials, 22-36 parts of poly(hexamethylene sebacamide), 2-4 parts of pentaerythritol tetrakis(2-mercaptoacetate), 5-10 parts of aluminium tripolyphosphate, 10-15 parts of eucommea rubber, 3-5 parts of tribehenin, 1.5-2.5 parts of dibasic lead phosphite, 5-10 parts of glass flake, 15-20 parts of fumed silica, 2-4 parts of ethylene glycol monostearate, 3-6 parts of peat wax, 10-15 parts of epoxy rice bran oleic acid butyl ester and 1-2 parts of N,N'-dimethyl-p-phenylenediamine. The sheath material for the seafloor communication optical cable has good mechanical properties and excellent corrosion resistance, especially seawater corrosion resistance, also has excellent high and low-temperature resistance, impact resistance, resistance to pressure and wear resistance, is durable in use, safe and reliable and can be widely applied to seafloor communication optical cable sheath layers.

Description

technical field [0001] The invention relates to a submarine communication optical cable sheath material and a preparation method thereof, belonging to the field of optical cable sheath materials. Background technique [0002] The communication optical cable is composed of a cable core and an outer sheath composed of several (core) optical fibers (generally from several cores to several thousand cores), and has a much larger transmission capacity; less attenuation; long transmission distance; small size; weight Lightweight; no electromagnetic interference; low cost, it is currently the most promising communication transmission medium, widely used in signal transmission in various departments such as telecommunications, electric power, and broadcasting, and will gradually become the main body of future communication networks. Due to the limitations of the laying or use environment, the communication optical cable needs to be protected by an outer protective layer, which is usu...

AI Technical Summary

Problems solved by technology

At present, the sheath material used for submarine communication optical cables in the market has the disadvantage of poor corrosion resistance. When laid on the seabed for a long time, salt water can easily corrode the sheath, resulting in damage to the sheath layer, which seriously affects the transmission of optical fibers.

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