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A waterproof emergency optical cable

An emergency optical cable and water-blocking technology, which is applied in the direction of optics, light guides, 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: 2020-10-02
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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  • A waterproof emergency optical cable
  • A waterproof emergency optical cable
  • A waterproof emergency optical cable

Examples

Experimental program
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Effect test

Embodiment 1

[0016] A waterproof emergency optical cable, comprising a tight-buffered optical fiber, a non-metallic strength member, 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 twisted with the non-metallic strength member , tape, aramid fiber, inner sheath layer, and braid are arranged in sequence between the tight-buffered optical fiber and the outer sheath;

[0017] said non-metallic reinforcement 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 par...

Embodiment 2

[0022] A waterproof emergency optical cable, comprising a tight-buffered optical fiber, a non-metallic strength member, 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 twisted with the non-metallic strength member , tape, aramid fiber, inner sheath layer, and braid are arranged in sequence between the tight-buffered optical fiber and the outer sheath;

[0023] The non-metallic reinforcement 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 wat...

Embodiment 3

[0028] A waterproof emergency optical cable, comprising a tight-buffered optical fiber, a non-metallic strength member, 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 twisted with the non-metallic strength member , tape, aramid fiber, inner sheath layer, and braid are arranged in sequence between the tight-buffered optical fiber and the outer sheath;

[0029] The non-metallic reinforcement is made of aramid fibers;

[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 ...

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PUM

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Abstract

The invention discloses a waterproof emergency optical cable, which comprises a tight-buffered optical fiber, a non-metallic strengthening 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 connected with the non-metallic Bonding is strengthened, and tape, aramid fiber, inner sheath layer, and braid are sequentially arranged between the tight-sleeved optical fiber and the outer sheath; the tape is made of water-blocking materials, and the raw materials of the water-blocking materials include: acrylic acid 80-100 parts of sodium, 30-40 parts of hydroxyacrylate, 0.5-1 part of initiator, 2-4 parts of crosslinking agent, 1-2 parts of glyceryl dimethacrylate, 150-200 parts of cyclohexane, 100 parts of distilled water ‑120 servings. In the present invention, sodium acrylate and hydroxyacrylate are subjected to rapid emulsion polymerization, which reduces the cross-linking degree of the core material and improves the high water absorption of the tape. At the same time, glycerol dimethacrylate is used as the second cross-linking agent, The cross-linking of the outer surface of the material forms a relatively tightly cross-linked shell structure, which improves the compression resistance after swelling.

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 Patents(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