High temperature resisting material for communication optical cable sheath and preparation method of high temperature resisting material

Abstract

The invention discloses a high temperature resisting material for a communication optical cable sheath and a preparation method of the high temperature resisting material. The high temperature resisting material is prepared from the following raw materials in parts by weight: 50-70 parts of polypropylene, 25-45 parts of polybenzimidazole, 15-20 parts of basic magnesium carbonate hydrate, 3-5 parts of dimethyl-biphenyl diisocyanate, 2-4 parts of N-phenylmaleimide, 16-22 parts of polytetrafluoroethylene, 10-15 parts of silicified graphite, 18-26 parts of terephthalic acid p-phenylenediamine, 10-15 parts of calcium molybdate, 15-20 parts of diisononyl phthalate, 12-18 parts of nanometer titanium phosphate, 10-15 parts of ultra fine aluminum silicate, 4-8 parts of pentaerythritol phosphate, 2-3 parts of lithium stearate, 3-5 parts of calcium acetyl acetone, 4-6 parts of low molecular weight polybutene, 1-2 parts of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) methyl propionate, and 2-3 parts of bisphenol A-bi(diphenyl phosphate). The sheath material provided by the invention has excellent high temperature resisting property, and can still maintain relatively high physics mechanical property after long time working in high temperature environment, and phenomena of softening, decomposition and poor performance cannot occur; meanwhile, the high temperature resisting material has the excellent wearing resistance, corrosion resistance, and aging resistance, so that the comprehensive property of the sheath is greatly improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to a high-temperature-resistant 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 la...

AI Technical Summary

Problems solved by technology

At present, the sheath materials used for communication optical cables on the market have the disadvantage of poor high temperature resistance, and the sheath is prone to softening, decomposition and performance degradation in high temperature environments, thus affecting the normal operation of communication optical cables

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