Water resistance aramid fiber yarn and method for producing the same

A kind of aramid yarn, water blocking technology, applied in the field of aramid yarn, can solve the problems of water peak attenuation, corrosion of optical fiber, affecting optical cable transmission, etc., to achieve the effect of excellent structure, unchanged manufacturing process and excellent quality

Inactive Publication Date: 2006-02-22
罗雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The medium for optical cable transmission signal is optical fiber, and the element that is easy to be corroded by optical fiber is hydrogen ion. If the optical cable is suspended in the air and water enters, hydrogen will be folded, causing the water peak to attenuate. Optical cable transmission, if it is not controlled, water will flow longitudinally along the cable core, which will damage the optical fiber, splice box and components and even cause business interruption
[0004] According to the analysis of the ADSS optical cable standard of the Ministry of Information Industry, the ADSS all-dielectric non-metallic self-supporting optical cable produced by all domestic manufacturers has failed to meet the full-section water-blocking requirements of the aramid yarn PE layer at the outer sheath reinforcement.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, the weight ratio of the components of the water-blocking aramid yarn in this example is:

[0023] Ionized water 80,

[0024] NaOH 35,

[0025] Acrylic 50,

[0026] Aramid yarn 90,

[0027] Acrylamide 35,

[0028] Potassium persulfate 2,

[0029] Ethanol 50.

[0030] In this example, the water-blocking aramid yarn is produced according to the following steps:

[0031] 1. 35 grams of sodium hydroxide solution of the above-mentioned weight ratio are poured into a stainless steel container, and 80 grams of ionized water mixed with the above-mentioned weight ratio make it prepared as an aqueous solution of sodium hydroxide;

[0032] ② Add 50 grams of acrylic acid to the above container for neutralization, so that the pH value is 6;

[0033] ③ Add 35 grams of acrylamide and stir for 1 hour;

[0034] ④ Add 2 grams of potassium persulfate initiator and stir for 1 hour;

[0035] 5. Add 50 grams of active catalyst ethanol and stir for 0.5 hour to generate p...

Embodiment 2

[0039] Example 2, the component weight ratio of the water-blocking aramid yarn in this example is as follows, and the production method, that is, the steps and process are the same as in Example 1.

[0040] Ionized water 90,

[0041] NaOH 55,

[0042] Acrylic 60,

[0043] Aramid yarn 98,

[0044] Acrylamide 48,

[0045] Potassium persulfate 10,

[0046] ethanol 65.

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PUM

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Abstract

This invention relates to a water-proof aramid fiber yarn, which comprises ionic hydration, caustic soda, acroleic acid, aramid fiber yarn, acrylamide, potassium peroxodisulfate, and alcohol in a certain ratio; the manufacturing method comprises the following steps: a) mixing caustic soda and hydration to prepare caustic soda water solution; b) adding acroleic acid; c) adding acrylamide; d) adding potassium peroxodisulfate and mixing; e) adding alcohol and mixing to generate polyaromatics organic solvent; f) adding aramid fiber yarn to soak, drying and generating to molecular crystal. Said invention can be used in non-metal ADSS optical cable, indoor flexible-cable, which can prevent water.

Description

technical field [0001] The invention relates to an aramid yarn used for wrapping communication optical cables in the technical field of electric power communication to enhance the tensile strength of the communication optical cables, in particular to a water-blocking aramid yarn and a production method thereof. Background technique [0002] With the development of power communication, optical cables are increasingly used in power lines, and ADSS all-dielectric non-metallic self-supporting optical cables are currently being widely used. Due to the large span of the optical cable of the power tower, according to the factors such as wind load, ice load, sag and its own weight of the geographical and climatic conditions in the installation area, the mechanical tensile strength of the optical cable is very high. The mature process structure chooses aromatic polyamide fiber (kevlaR), commonly known as aramid yarn. When the aramid yarn is used in the optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/44D06B3/06D06M13/41G02B6/44
Inventor 罗雄
Owner 罗雄
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