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Waterproof emergency optical cable

An emergency optical cable and water-blocking technology, which is applied in the direction of light guides, optics, and optical components, can solve the problems of small friction of each component of the optical cable, the water-blocking performance needs to be strengthened, and the mechanical performance of the optical cable is affected, so as to improve the water-blocking and waterproof performance. Better protective effect and improved anti-swelling performance

Active Publication Date: 2019-01-22
安徽牡东通讯光缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing waterproof emergency optical cables often use water-blocking ointment and water-blocking yarn to improve the waterproof performance of the cable, but the optical cable requires a large amount of ointment filling, resulting in a heavy cable, affecting the mechanical properties of the cable, and causing the friction of each component of the cable to be small , leading to relative sliding, which is very prone to accidents and easy to pollute the environment; while water-blocking yarn is prone to powder drop, and the water-blocking performance needs to be strengthened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A waterproof emergency optical cable, including a tight-buffered optical fiber, a non-metallic reinforcing key, a tape, an inner sheath layer, a braid, and an outer sheath, wherein several tight-buffered optical fibers are arranged inside the outer sheath and glued with the non-metallic reinforcing key, Tape, aramid fiber, inner sheath layer, and braid are arranged sequentially between the tight-buffered optical fiber and the outer sheath;

[0017] The non-metallic reinforcing key is made of fiber-reinforced plastic;

[0018] Both the inner sheath and the outer sheath are made of low-smoke halogen-free flame-retardant polyethylene;

[0019] The tape is made of water-blocking materials, and the raw materials of the water-blocking materials include: 80 parts of sodium acrylate, 30 parts of hydroxyethyl acrylate, 0.5 parts of potassium persulfate, 4 parts of propylene glycol diacrylate, 4 parts of dimethacrylic acid 1 part of glyceride, 200 parts of cyclohexane, 100 parts...

Embodiment 2

[0022] A waterproof emergency optical cable, including a tight-buffered optical fiber, a non-metallic reinforcing key, a tape, an inner sheath layer, a braid, and an outer sheath, wherein several tight-buffered optical fibers are arranged inside the outer sheath and glued with the non-metallic reinforcing key, Tape, aramid fiber, inner sheath layer, and braid are arranged sequentially between the tight-buffered optical fiber and the outer sheath;

[0023] The non-metallic reinforcing key is made of aramid fiber;

[0024] Both the inner sheath and the outer sheath are made of low-smoke halogen-free flame-retardant polyethylene;

[0025] The tape is made of a water-blocking material, and the raw materials of the water-blocking material include by weight: 100 parts of sodium acrylate, 40 parts of hydroxypropyl acrylate, 1 part of sodium persulfate, 2 parts of ethylene glycol dimethacrylate, 2 parts of glycerol dimethacrylate, 150 parts of cyclohexane, 120 parts of distilled wate...

Embodiment 3

[0028] A waterproof emergency optical cable, including a tight-buffered optical fiber, a non-metallic reinforcing key, a tape, an inner sheath layer, a braid, and an outer sheath, wherein several tight-buffered optical fibers are arranged inside the outer sheath and glued with the non-metallic reinforcing key, Tape, aramid fiber, inner sheath layer, and braid are arranged sequentially between the tight-buffered optical fiber and the outer sheath;

[0029] The non-metallic reinforcing key is made of aramid fiber;

[0030] Both the inner sheath and the outer sheath are made of low-smoke halogen-free flame-retardant polyethylene;

[0031] The tape is made of water-blocking materials, and the raw materials of the water-blocking materials include, by weight, 90 parts of sodium acrylate, 35 parts of hydroxyethyl methacrylate, 0.7 parts of potassium persulfate, 3 parts of propylene glycol dimethacrylate, 1.5 parts of glycerol dimethacrylate, 180 parts of cyclohexane, 110 parts of di...

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PUM

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Abstract

The invention discloses a waterproof emergency optical cable. The waterproof emergency optical cable comprises tight-buffered optical fibres, a non-metallic reinforcing key, a belt, an inner sheath layer, a braid and an outer sheath, wherein multiple tight-buffered optical fibres are arranged at the inner side of the outer sheath, and glued with the non-metallic reinforcing key; the belt, aramid fibre, the inner sheath layer and the braid are sequentially arranged among the tight-buffered optical fibres and the outer sheath; the belt is made of a water blocking material; and the water blockingmaterial comprises the following raw materials in parts by weight: 80-100 parts of sodium acrylate, 30-40 parts of hydroxyl acrylate, 0.5-1 part of an initiator, 2-4 parts of a cross-linking agent, 1-2 parts of glycerol dimethacrylate, 150-200 parts of cyclohexane, and 100-120 parts of distilled water. According to the waterproof emergency optical cable in the invention, rapid emulsion polymerization of sodium acrylate and hydroxyl acrylate is carried out; the cross-linking degree of a core material is reduced; the high water-absorbing capacity of the belt is improved; simultaneously, glycerol dimethacrylate is used as the second cross-linking agent; cross-linking is carried out on the periphery of the core material, so that a relatively tight shell structure is formed; and thus, the compression resistance after swelling is improved.

Description

technical field [0001] The invention relates to the technical field of optical cables, in particular to a waterproof emergency optical cable. Background technique [0002] Emergency optical cables are often used in emergency situations such as firefighting, emergency rescue, and disaster relief due to their lightness, convenience, and speed. Waterproof and water-blocking properties can ensure the normal communication during firefighting, emergency rescue, and natural disaster relief, thereby improving the efficiency of disaster relief. Existing waterproof emergency optical cables often use water-blocking ointment and water-blocking yarn to improve the waterproof performance of the cable, but the optical cable requires a large amount of ointment filling, resulting in a heavy cable, affecting the mechanical properties of the cable, and causing the friction of each component of the cable to be small , resulting in relative sliding, which is extremely prone to accidents and eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/44384
Inventor 夏道友
Owner 安徽牡东通讯光缆有限公司