Water blocking yarn

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Water blocking yarn

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SIBER Water Blocking Yarns are used in optical,copper telephone,data cable and power cable as cable components.Yarns are used as fillers in power cables to provide a primary pressure block and to prevent water ingress and migration in fiber optical cables.When water enters into a cable protected by water blocking yarns,the super-absorbent component within the yarn instantly forms a water blocking gel.The yarn will swell to approximately three times as its dry size.

Specification of Water Blocking Yarn

Item Denier Linear Density Swelling Speed Swelling Capacity Tensile Strength Elongation at Break Moisture Content
D m/kg ml/g/1min ml/g N % (Min) % (Max)
ZS-1.0 9000 1000 50 60 250 10 8
ZS-2.0 4500 2000 45 60 150 10 8
ZS-3.0 3000 3000 45 50 100 10 8
ZS-4.5 2000 4500 40 50 70 10 8
ZS-5.0 1800 5000 35 45 60 10 8
ZS-6.0 1500 6000 30 40 50 10 8
ZS-10.0 900 10,000 20 30 20 10 8

Aramid fibers are a class of heat resistant and strong synthetic fibers. They are used in aerospace and military applications, for ballistic rated body armor fabric and ballistic composites, in bicycle tires, and as an asbestos substitute. They are fibers in which the chain molecules are highly oriented along the fiber axis, so the strength of the chemical bond can be exploited.

1.good resistance to abrasion
2.good resistance to organic solvents
3.nonconductive melting point, degradation starts from 500°C
5.low flammability
6.good fabric integrity at elevated temperatures
7.sensitive to acids and salts
8.sensitive to ultravioletradiation
Industrial Uses
1.flame-resistant clothing
2.heat protective clothing and helmets
3.body armor, competing with PE based fiber products such as Dyneema and Spectra
4.composite materials
5.asbestos replacement air filtrationfabrics, newly as Sulfron
8.mechanical rubber goods reinforcement
9.ropes and cables
10.wicks for fire dancing
11.optical fiber cable systems
12.sailcloth (not necessarily racing boat sails)
13.sporting goods
15.wind instrument reeds, such as the Fibracell brand
16.loudspeaker diaphragms
17.boathull material
18.fiber reinforced concrete strings, snowboards and hockey sticks

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