Water Blocking Yarn

Introduction

The water blocking yarn consists of industrial polyester filament, macromolecule swelling water absorbing tree ester and adhesive.

It is mainly used for water blocking and filling between optical fiber cable, communication cable, fan-shaped wire core, power cable, submarine cable and other parts.

Principle:The water block yarn consists two parts. One part is basing material, which is made of nylon or Polyester as reinforced rib to ensure the yarn to have better tensile strength and elongation. The other part contains the expansion powder and fiber of polyacrylic ester, Which is super water absorption polymer, After absorbing the water, it will swell quickly to full the gap of cable to meet the purpose of water blocking.

Advantage

Standard: YD/T 1115.2-2001.

Specification & Parameter

Specification	Yarn density (Dtex)	Basis weight (m/kg)	Breaking strength (N)	Elongation (%)	Swelling rate (ml/g/1st min)	Long-term thermal expansion rate (150℃,24H,ml/g)	Transient thermal expansion rate (230℃,10min,ml/g)	Water contain rate (150℃,1min,%)
700D	780	12857	≥50	15↓	≥60	≥65	≥65	9↓
1500D	1670	6000	≥50	15↓	≥60	≥65	≥65	9↓
2000D	2220	4500	≥60	15↓	≥60	≥65	≥65	9↓
2500D	2780	3600	≥70	15↓	≥60	≥65	≥65	9↓
3000D	3330	3000	≥100	15↓	≥60	≥65	≥65	9↓
4500D	5000	2000	≥150	15↓	≥55	≥65	≥65	9↓
6000D	6670	1500	≥200	15↓	≥50	≥55	≥55	9↓
9000D	10000	1000	≥250	15↓	≥45	≥55	≥55	9↓
18000D	20000	500	≥300	15↓	≥40	≥50	≥50	9↓