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Plastic Optical Fiber Cable
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A plastic optical fiber and cable technology, applied in cladding optical fiber, optics, light guide, etc., can solve the problems of low wiring freedom and inability to wire optical cables, etc., and achieve the effects of transmission loss suppression and excellent durability
Active Publication Date: 2020-06-30
ASAHI KASEI KK
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Problems solved by technology
Therefore, there is a problem that it is necessary to use a cable with sufficient excess length in consideration of heat shrinkage for use in a high-temperature environment, the degree of freedom of wiring is low, and wiring in an optical cable cannot be performed due to the design of the device.
Method used
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Embodiment 1
[0233] For 2 plastic optical fiber wires with a protective layer, the plastic optical fiber wires with a protective layer are plastic optical fiber wires SHB-1000 (1 core, core material PMMA, wire rod diameter 1.0 manufactured by Asahi Kasei Co., Ltd. mm) with a thickness of 0.15 mm, polyamide 12 resin (Vestamid N1901 manufactured by Daicel-Evonik Ltd.) as a protective layer was formed by extrusion molding, and polyethylene (SANTAC M1920 manufactured by Asahi Kasei Co., Ltd.) was used as a covering material. The covering layer was formed so that the short diameter became 2.2mm, and a double-wire plastic optical fiber cable was produced.
[0234] Heat resistance, tear strength, and heat shrinkage were measured and evaluated by the methods described above.
[0235] The evaluation results are shown in Table 1 below.
[0236] In addition, the heat shrinkage rate of a wire rod was measured by the method similar to said ((3) heat shrinkage (measurement of heat shrinkage rate)).
Embodiment 2
[0238] PVC (polyvinyl chloride, manufactured by RIKEN TECHNOS CORP, SMV9993S) was used as a covering material to form a covering layer.
[0239] 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
[0241] A flame-retardant polyethylene resin composition having the composition shown below was used as the covering material.
[0242] 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.
[0243] DHDA-1184NTJ made of polyethylene resin NUC 15 parts by mass
[0244] NUC-3195 made of polyethylene resin NUC 20 parts by mass
[0245] Polyethylene resin Nippon Polyethylene Co., Ltd. Rexpearl EEA A1150 20 parts by mass
[0246] Magnesium hydroxide Kyowa Chemical Industry Co., Ltd. KISUMA5A 40 parts by mass
[0247] Red phosphorus Kyowa Chemical Industry Co., Ltd. RINKA_FE140F 5 parts by mass
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Abstract
The present invention relates to plastic optical fiber cables. [Problem] Provide: Plastic optical fiber cables with excellent durability in harsh environments and effectively suppressed transmission loss. [Solution] A plastic optical fiber cable comprising two or more plastic optical fiber wires and a covering layer formed on the outer periphery of the plastic optical fiber wires, wherein the plastic optical fiber wires have one or more cores , and at least one layer of sheath formed on the outer periphery of the core, the plastic optical fiber cable has a shrinkage rate of 1% or less when left to stand at a temperature of 105° C. for 1 hour, and is formed between adjacent plastic optical fiber wires The tear strength of the covering layer is below 10N.
Description
technical field [0001] The present invention relates to 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 cited as the sour...
Claims
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Application Information
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