Communication optical fiber cable jacket material for nuclear power station and preparation method of communication optical fiber cable jacket

Abstract

The invention discloses a communication optical fiber cable jacket material for a nuclear power station and a preparation method of the communication optical fiber cable jacket material. The communication optical fiber cable jacket material is prepared from the following raw materials in parts by weight: 58-74 parts of polyimide, 32-56 parts of poly(ether ether ketone), 18-26 parts of aluminum borate whisker, 12-16 parts of molybdenum disilicide, 10-15 parts of flint clay powder, 10-15 parts of butyl acetyl ricinoleate, 15-25 parts of PPL, 2-3 parts of cyanuric acid lead, 1-2 parts of bismuth neodecanoate, 10-15 parts of diethyl glutarate, 1-2 parts of dodecanethiol dibutyltin, 3-6 parts of ethylene bis stearamide, 4-8 parts of aluminum oxalate, 2-3 parts of butyl hydroxyanisole, 3-6 parts of melamine pyrophosphate, 5-10 parts of trioctyl trimellitate, and 1-2 parts of 2-(2'-hydroxy-3',5'-diamyl phenyl) benzotriazole. The jacket material disclosed by the invention is high in irradiation resistance, can keep the tensile strength and the breaking elongation to be 90% above after gamma ray irradiation which is highly up to 6.5*10<9> rad, and is excellent in heat resistance, fire resistance, oil resistance and corrosion resistance, long in service life and capable of being widely applied to manufacturing of the communication optical fiber cable jacket for the nuclear power station.

Description

technical field [0001] The invention relates to a communication optical cable sheath material for nuclear power plants 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 laye...

AI Technical Summary

Problems solved by technology

At present, the sheath materials of communication optical cables used in nuclear power plants have the disadvantage of poor radiation resistance, and are prone to aging and cracking after long-term exposure to high-radiation environments.

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