Low-smoke halogen-free self-supporting butterfly-shaped leading-in optical cable with non-metal reinforcers

A non-metallic strength member and a technology for introducing optical cables, which are applied in the field of optical cables, can solve problems such as the reduction of mechanical properties of sheath materials, and achieve the effect of improving compatibility
CN112034570AActive Publication Date: 2020-12-04SICHUAN TIANYI COMHEART TELECOM
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SICHUAN TIANYI COMHEART TELECOM
Publication Date
2020-12-04

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Abstract

The invention discloses a low-smoke halogen-free self-supporting butterfly-shaped leading-in optical cable with non-metal reinforcers. The low-smoke halogen-free self-supporting butterfly-shaped leading-in optical cable comprises an optical fiber ribbon, reinforcers, astrengthening component and a sheath, wherein the two reinforcers are symmetrically arranged, the optical fiber ribbon is arrangedbetween the two reinforcers, the strengthening component is arranged beside one reinforcer, and the optical fiber ribbon, the reinforcers and the strengthening component are fixed by means of the sheath; and a sheath material of the sheath is prepared from the following raw materials in parts by weight: 130-150 parts of a polyolefin base material, 35-51 parts of a composite flame retardant and 0.05-0.1 part of an antioxidant. The sheath provided by the invention also has an excellent flame-retardant effect and excellent mechanical properties when the low flame retardant is added.
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Description

technical field

[0001] The invention belongs to the field of optical cables, and in particular relates to a low-smoke, halogen-free self-supporting butterfly lead-in optical cable with a non-metallic reinforcement. Background technique

[0002] Optical cables are manufactured to meet optical, mechanical or environmental performance specifications. The basic structure of optical cables generally includes a cable core and a sheath. Fiber optic cable. The sheath of an optical cable generally contains a flame retardant, and magnesium hydroxide is a commonly used inorganic flame retardant. The principle of flame retardant is that as the temperature rises, magnesium hydroxide will decompose and absorb a large amount of heat to reduce the temperature of the system. Further prevent the degradation of the polymer. In addition, the generated magnesium oxide can act as a protective layer to block air and flammable gases, and protect the underlying polymer. At the same time, the water ...

Claims

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