A kind of high-strength flexible optical cable and preparation method thereof

Abstract

The invention discloses a flexible optical cable with high strength and the manufacturing method thereof. The flexible optical cable with high strength of the invention comprises six layers: a surface layer, a reinforced layer, a middle layer sleeving pipe, a shielding layer, an internal wrapping layer, and a core layer. The surface layer is made of methyl vinyl silicone rubber cured with flame retardant. The reinforced layer is woven into the form through deposited hardened stainless steel wires, and the middle sleeving pipe is made of EPB ethylene propylene diene monomer rubber. The shielding layer is a carbon film, the internal wrapping layer is silica-based glass with low-refractive index, and the core material is silica-based glass with high refractive index wherein the silica-based glass with low-refractive index comprises 85 to 92 parts of silicon dioxide, 2 to 3 parts of sulfur dioxide, 2 to 3 parts of carbon dioxide and 6 to 8 parts of boron oxide by the numbers of molecules, and silica-based glass with high refractive index comprises 85 to 92 parts of silica, 3 to 4 parts of phosphorus pentoxide and 8 to 10 parts of germanium oxide by the numbers of molecules. The flexible optical cable has good insulating and shielding performances. With a small minimum bending radius, the cable also withstands high temperatures and aging, enabling it to have a long service time.

Description

technical field [0001] The invention relates to the field of optical elements, in particular to a high-strength flexible optical cable and a preparation method thereof. Background technique [0002] Optical fiber cable is manufactured to meet optical, mechanical or environmental performance specifications. It is a communication communication that uses one or more optical fibers placed in a sheath as a transmission medium and can be used individually or in groups. cable assembly. The optical cable is mainly composed of optical fiber (glass filament as thin as hair), plastic protective sleeve and plastic sheath. There is no metal such as gold, silver, copper and aluminum in the optical cable, and generally has no recycling value. An optical cable is a communication line in which a certain number of optical fibers form a cable core in a certain way, and is covered with a sheath, and some are also covered with an outer sheath to realize optical signal transmission. That is: a ...

AI Technical Summary

Problems solved by technology

Optical cables are mainly composed of optical fibers (glass filaments as thin as hair), plastic protective sleeves and plastic sheaths. There are no metals such as gold, silver, copper and aluminum in optical cables, and generally have no recycling value.