Processing method of fire-resistant water-blocking tape for optical cable

A technology of fire-resistant water-blocking tape and processing method, which is applied in the directions of light guides, optics, optical components, etc., can solve the problems of no waterproof function and no fire-proof function, etc., and achieve excellent fire resistance, firm adhesion and good durability.

Inactive Publication Date: 2018-11-13
ANHUI COMM IND SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the water blocking tape has a good waterproof effect, it does not have a fireproof function
Although the mica tape has a good fireproof effect, it does not have a waterproof function.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Structural design of the water-blocking belt: the water-blocking belt is composed of a three-layer structure of the surface layer of non-alkali glass fiber cloth, the middle layer of needle-punched cotton non-woven fabric and the bottom layer of non-alkali glass fiber cloth. The middle layer of needle-punched cotton non-woven fabric is impregnated and surface coating process to form a water-blocking layer;

[0027] (2) Preparation of water-blocking impregnating solution: use 35-40°C deionized water to prepare water-blocking powder into 20wt% water-blocking impregnating solution;

[0028] (3) Preparation of water-blocking coating liquid: use 35-40°C deionized water to prepare water-blocking powder to make 40wt% water-blocking coating liquid;

[0029] (4) Processing of water-blocking layer: completely immerse the single-layer needle-punched cotton non-woven fabric in the water-blocking dipping solution, take it out after 15 minutes, and dry it at 60-65°C to constant w...

Embodiment 2

[0033] (1) Structural design of the water-blocking belt: the water-blocking belt is composed of a three-layer structure of the surface layer of non-alkali glass fiber cloth, the middle layer of needle-punched cotton non-woven fabric and the bottom layer of non-alkali glass fiber cloth. The middle layer of needle-punched cotton non-woven fabric is impregnated and surface coating process to form a water-blocking layer;

[0034] (2) Preparation of water-blocking impregnating solution: use 35-40°C deionized water to prepare water-blocking powder into 20wt% water-blocking impregnating solution;

[0035] (3) Preparation of water-blocking coating liquid: use 35-40°C deionized water to prepare water-blocking powder to make 40wt% water-blocking coating liquid;

[0036] (4) Processing of water-blocking layer: completely immerse the single-layer needle-punched cotton non-woven fabric in the water-blocking dipping solution, take it out after 15 minutes, and dry it at 60-65°C to constant w...

Embodiment 3

[0042] (1) Structural design of the water-blocking belt: the water-blocking belt is composed of a three-layer structure of the surface layer of non-alkali glass fiber cloth, the middle layer of needle-punched cotton non-woven fabric and the bottom layer of non-alkali glass fiber cloth. The middle layer of needle-punched cotton non-woven fabric is impregnated and surface coating process to form a water-blocking layer;

[0043] (2) Preparation of water-blocking impregnating solution: use 35-40°C deionized water to prepare water-blocking powder into 20wt% water-blocking impregnating solution;

[0044] (3) Preparation of water-blocking coating liquid: use 35-40°C deionized water to prepare water-blocking powder to make 40wt% water-blocking coating liquid;

[0045] (4) Processing of water-blocking layer: completely immerse the single-layer needle-punched cotton non-woven fabric in the water-blocking dipping solution, take it out after 15 minutes, and dry it at 60-65°C to constant w...

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PUM

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Abstract

The invention discloses a processing method of a fire-resistant water-blocking tape for an optical cable, and relates to the technical field of optical cable processing. The processing method of a fire-resistant water-blocking tape for an optical cable includes the following steps: 1) designing of a water-blocking tape structure; 2) preparation of water-blocking dipping liquid; 3) preparation of water-blocking coating liquid; 4) processing of a water-blocking layer; and 5) processing of a water-blocking tape. The processing method of a fire-resistant water-blocking tape for an optical cable adopts a water-blocking tape with a three-layer structure including a surface layer of alkali-free glass fabrics, a middle layer of needle-punched cotton non-woven fabrics and a bottom layer of non-alkali glass fabrics, and imparts excellent fire resistance to the water-blocking tape while ensuring the water-blocking effect, wherein the surface layer of alkali-free glass fabrics and the bottom layerof alkali-free glass fabrics exert fire resistance, and the middle layer of needle-punched cotton non-woven fabrics exerts water-blocking performance.

Description

Technical field: [0001] The invention relates to the technical field of optical cable processing, in particular to a processing method for a fire-resistant water-blocking tape for an optical cable. Background technique: [0002] During the laying and operation of wires and cables, when there is mechanical stress that damages the wires and cables, the moisture in the surrounding environment will seep into the wires and cables, causing the interruption of the signal transmission of the communication cables, and also causing the cables to form water trees leading to water trees breakdown, resulting in a major power outage. [0003] The water blocking tape is a coating material for the internal structure of optical cables or cables. The structure of the existing water blocking tape is generally composed of a reinforcing layer and a water blocking layer. The reinforcing layer is a grid of polyester fibers. The water layer is a layer of water-blocking powder bonded on the surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/44384
Inventor 王锃李杨张宏俊
Owner ANHUI COMM IND SERVICE CO LTD
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