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Water-resisting material for communication optical cable and preparation method thereof

A communication optical cable and water-blocking technology, which is applied in the field of optoelectronic information, can solve the problems of water-blocking powder falling off, high water content, and weak lamination, and achieve the effect of firm lamination and good adhesion

Inactive Publication Date: 2003-08-06
WUHAN 21TH CENTURY CHEM MATERIAL
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  • Summary
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AI Technical Summary

Problems solved by technology

This process has the disadvantages of water-blocking powder falling off from the base material, weak lamination and high water content, which seriously affects the product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific example 100

[0034] Water-swellable water-blocking paint is rolled on special non-woven fabrics or dip-coated on aramid yarns. The specific example percentage of each component of the water-expandable water-blocking coating to the total weight is:

[0035] The preparation method of the communication optical cable water-blocking material is realized according to the following steps:

[0036] 1) Preparation of water-swellable water-blocking coating: take super water-absorbing agent, adhesive, and anhydrous alcohol solvent, and the components are based on the total weight percentage: super water-absorbing agent 22-42, adhesive 1-30 , Anhydrous alcohol solvent 42-62, made of water-swelling water-blocking coating;

[0037] 2) The water-swellable water-blocking coating is rolled on special non-woven fabrics or dip-coated on aramid yarns to prepare water-blocking materials for communication optical cables.

[0038] The preparation of the water-swellable water-blocking coating uses acrylic aci...

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PUM

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Abstract

The present invention relates to a communication optical cable water-resisting material for wrapping and filling the communication optical cable and its preparation method. Said communication opticalcable water-resisting material is formed from water-expandable water-resisting coating material, special non-woven fabric and aramid fibre yarn. It is characterized by that said water-expandable water-resisting coating material is composed of (wt%) 22-42% of superstrong water-absorbing agent, 1-30% of adhesive and 42-62% of anhydrous alcohol solution. Said water-expandable water-resisting agent can be roll-coated on the special non-woven fabric or immersion-coated on the aramide fibre yarn. Said invention also provides its preparation method.

Description

technical field [0001] The invention relates to the field of optoelectronic information technology, in particular to a communication optical cable water-blocking material for wrapping and filling communication optical cables and a preparation method thereof. Background technique [0002] In order to ensure that communication optical cables are waterproof and moisture-proof, manufacturers of communication optical cables need to wrap and fill communication optical cables with water-blocking materials (water-blocking tape and water-blocking yarn). [0003] Researchers at home and abroad have a mindset, that is, use a re-moisture adhesive (water as a solvent) to bond acrylic super absorbent powder to non-woven fabrics and aramid yarns to make water-blocking tapes and water-blocking yarns. [0004] At present, manufacturers who produce communication optical cable water-blocking tapes or water-blocking yarns use re-moisture adhesives to bond water-blocking powder (super water-abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18H01B17/50
Inventor 邵建人王忠波韩松山
Owner WUHAN 21TH CENTURY CHEM MATERIAL
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