一、产品介绍 （Product Introduction）
光、电缆用阻水带主要采用聚脂纤维非织造布与高吸水材料复合而成，具有吸水膨胀的功能。阻水带广泛应用于通讯光缆、电力电缆结构组件之间的阻水，无腐蚀性。可以减少光、电缆中水及潮气的渗入，延长光、电缆的工作寿命。
Water blocking tape is high technical communicate product which is swelling when absorbing. Water blocking tape is used in electronic cables and communication cables. It could decrease moisture permeating and improve cables' working ages.
二、技术指标 (Technical Indicator)
性能 Properties | 单位 Unit | 阻水带 Water blocking tape | |||||
厚度 Thickness | mm | 0.15±0.02 | 0.20±0.02 | 0.30±0.02 | 0.30±0.03 | 0.40±0.03 | 0.50±0.04 |
单位重量 Unit weight | g/m² | 70±7 | 80±8 | 90±9 | 100±10 | 120±10 | 140±10 |
拉伸强度 Tensile strength | N/cm | ≥25 | ≥40 | ≥40 | ≥40 | ≥40 | ≥40 |
断裂伸长率 Elongation at reak | % | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 |
膨胀速度 Expansion speed | mm/1stmin | ≥6 | ≥10 | ≥10 | ≥12 | ≥14 | ≥16 |
膨胀高度 Expansion height | mm | ≥8 | ≥12 | ≥14 | ≥16 | ≥18 | ≥20 |
瞬间稳定性 Moment stability | ℃ | 230 | 230 | 230 | 230 | 230 | 230 |
长度稳定性 Long time stability | ℃ | 90 | 90 | 90 | 90 | 90 | 90 |
含水率 Moisture content | % | ≤9 | ≤9 | ≤9 | ≤9 | ≤9 | ≤9 |