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Heat-resistant plastic optical fiber cable

A plastic optical fiber and cable technology, applied in optics, light guides, optical components, etc., can solve the problems of low freedom of wiring, no consideration of shrinkage, inability to carry out optical cables, etc., and achieve the effect of transmission loss suppression and excellent durability.

Active Publication Date: 2020-07-31
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] However, the plastic optical fibers disclosed in Patent Documents 1 and 2 both exert a certain performance improvement effect on transmission loss, but do not consider shrinkage due to heat. Therefore, there is a problem that it is necessary to use a Consider shrinkage and cables with sufficient excess length in advance, the degree of freedom of routing is low, and routing in optical cables cannot be performed due to the design of the device

Method used

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  • Heat-resistant plastic optical fiber cable
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  • Heat-resistant plastic optical fiber cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0249] For the plastic optical fiber wire with a protective layer, the plastic optical fiber wire with a protective layer is a plastic optical fiber wire SHB-1000 (1 core, core material PMMA, wire diameter 1.0mm manufactured by Asahi Kasei Co., Ltd.) with a heat shrinkage rate of 0.8%. The above is obtained by extrusion molding a polyamide 12 resin (Vestamid N1901 manufactured by Daicel-Evonik Ltd.) as a protective layer with a thickness of 0.15mm, and a flame-retardant polyethylene composition with the composition shown below is used as a covering material , form a covering layer, make the plastic optical fiber cable in such a way that the diameter becomes 2.2mm after adding the covering layer.

[0250] Heat resistance, flame retardancy, and heat shrinkage were measured and evaluated by the methods described above.

[0251] Table 1 shows the evaluation results.

[0252] In addition, the heat shrinkage rate of a wire rod was measured by the method similar to said ((3) heat sh...

Embodiment 2

[0259] As a cover material, PVC (polyvinyl chloride SMV9993S manufactured by RIKEN TECHNOS CORP) was used.

[0260] The other conditions were the same as in the aforementioned [Example 1], and plastic optical fiber cables were produced and evaluated in the same manner.

Embodiment 3

[0262] As a covering material, PVDF (PVDF31008 / 0003 manufactured by polyvinylidene fluoride 3M Corporation) was used.

[0263] The other conditions were the same as in the aforementioned [Example 1], and plastic optical fiber cables were produced and evaluated in the same manner.

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Abstract

The present invention relates to heat-resistant plastic optical fiber cables. [Problem] Provide: Heat-resistant plastic optical fiber cables that are excellent in durability under harsh environments and effectively suppress transmission loss. [Solution] A plastic optical fiber cable, which is a plastic optical fiber cable (10) with a plastic optical fiber wire (16) and a covering layer (18), and the plastic optical fiber wire (16) has one or more than two core (12), and at least one layer of sheath (14) formed on the outer periphery of the core, the cover layer (18) is formed on the outer periphery of the aforementioned plastic optical fiber wire (16), and the plastic optical fiber cable is The shrinkage rate when standing at 105°C for 1 hour is less than 1%, meeting the UL VW‑1 standard.

Description

technical field [0001] The present invention relates to heat-resistant plastic optical fiber cables. Background technique [0002] A plastic optical fiber has a structure in which a core fiber made of a transparent resin is surrounded by a sheath made of a resin whose refractive index is lower than that of the transparent resin, and light is reflected at the boundary between the core and the sheath to transmit an optical signal within the core. medium. [0003] Compared with silica glass optical fibers, plastic optical fibers have the advantages of being superior in flexibility and being able to use large-diameter optical fibers that tend to overlap cores at the time of connection. [0004] Therefore, plastic optical fiber cables are widely used in place of metal cables for short-distance communication in and between electronic devices as a countermeasure against communication failures caused by electromagnetic wave noise. [0005] In general, high-voltage cables can be ci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4436
Inventor 冲田光史
Owner ASAHI KASEI KK