塑料建材 含胶双壁热缩管

含胶双壁热缩管
双壁收缩套管(环保型)外层采用优质的聚烯烃合金，内层热熔胶复合加工而成。产品成型后经电子加速器辐射交联、连续扩张而成。外层具有绝缘、防腐、耐磨等优点，内层具有低熔点、防水密封和机械应变缓冲性能等优点。广泛应用于电子设备的接线防水、防漏气，电线分歧处的密封固定、金属管线的防腐保护、电线电缆的修补等场合。
2、特点：
①适用范围：-55℃~125℃。
②起始收缩温度70℃，完全收缩温度120℃
③内胶层融化温度：60℃～80℃
④收缩倍率：2:1，3：1，4:1
⑤密封、防水，应变缓冲。
⑥半刚性和较强的抗机械性能，使其可以为电线接头，终端提供良好的耐磨损保护。
⑦较厚的胶层形成一个防流体和水分的有效保护层。
⑧环保性能符合欧盟ROHS指令。

性能参数
?特性?指标要求?测试方法?典型值
物理特性：?抗张强度&nbsp10.3MPa min.&nbspASTM D 638?≥12MPa
?断裂伸长率&nbsp200% &nbspASTM D 638?≥400%
?热冲击(250℃, 4小时)?无裂痕&nbspASTM D 2671?通过
?低温柔软性(-55℃, 4小时)?无裂痕&nbspASTM D 2671?通过
?热老化 158℃, 168小时? ? ?
?老化后抗张强度?初始值的70%以上&nbspASTM D 638?≥90%
?老化后断裂伸长率&nbsp100% min.&nbspASTM D 638?≥300%
电学特性：?绝缘耐压和击穿&nbsp2500V,60sec,不击穿&nbspASTM D 2671?通过
?体积电阻率&nbsp1014Ω?cm min.&nbspASTM D 876?≥1014Ω?cm
化学特性：?铜腐蚀(158℃, 168小时)?无腐蚀&nbspASTM D 2671?通过
?铜稳定性(158℃, 168小时)?伸长率≥100%&nbspASTM D 2671?通过
?阻燃性&nbspALL　TUBING　FLAME　TEST&nbspUL224?通过
规格尺寸
2倍收缩比
标准尺寸(mm) ?收缩前内径（mm） ?收缩后*大内径
(mm) ?收缩后壁厚(mm) ?胶层厚度(mm) ?供货长度(m)
?????切管 ?米/卷
3.2/1.6&nbsp3.2&nbsp1.60&nbsp0.75+0.05&nbsp0.35&nbsp1.22&nbsp200
4.8/2.4&nbsp4.8&nbsp2.40&nbsp0.75+0.05&nbsp0.35&nbsp1.22&nbsp100
6.4/3.2&nbsp6.4&nbsp3.20&nbsp0.75+0.05&nbsp0.35&nbsp1.22&nbsp100
9.5/4.8&nbsp9.5&nbsp4.80&nbsp0.80+0.05&nbsp0.35&nbsp1.22&nbsp100
12.7/6.4&nbsp12.7&nbsp6.40&nbsp0.80+0.05&nbsp0.35&nbsp1.22&nbsp50
19.1/9.5&nbsp19.1&nbsp9.50&nbsp0.95+0.05&nbsp0.35&nbsp1.22&nbsp50
25.4/12.7&nbsp25.4&nbsp12.70&nbsp1.15+0.05&nbsp0.35&nbsp1.22&nbsp50
38.1/19.0&nbsp38.1&nbsp19.00&nbsp1.25+0.05&nbsp0.35&nbsp1.22&nbsp30
50.0/25.0&nbsp50.0&nbsp25.0&nbsp1.40+0.05&nbsp0.35&nbsp1.22 ?　30
60.0/25.0 &nbsp60.0 &nbsp25.0 &nbsp2.30+ 0.20 &nbsp0.80 &nbsp1.22 &nbsp15
70.0/30.0 &nbsp70.0 &nbsp30.0 &nbsp2.30+ 0.30 &nbsp0.90 &nbsp1.22 &nbsp15
80.0/30.0 &nbsp80.0 &nbsp30.0 &nbsp2.30+ 0.30 &nbsp0.90 &nbsp1.22 &nbsp15
90.0/40.0 &nbsp90.0 &nbsp40.0 &nbsp2.30+ 0.40 &nbsp0.90 &nbsp1.22 &nbsp15
100.0/40.0 &nbsp100.0 &nbsp40.0 &nbsp2.30+ 0.40 &nbsp0.90 &nbsp1.22 &nbsp15
3倍收缩比
标准尺寸（mm） ?收缩前内径（mm） ?收缩后*大内径(mm) ?收缩后壁厚(mm) ?胶层厚度(mm) ?供货长度
(m)
?????切管 ?米/卷
3.0/1.0&nbsp3.0&nbsp1.00&nbsp1.00+0.20&nbsp0.50?　 1.22&nbsp200
4.8/1.6&nbsp4.8&nbsp1.60&nbsp1.00+0.20&nbsp0.50?　 1.22&nbsp100
6.0/2.0&nbsp6.0&nbsp2.00&nbsp1.00+0.20&nbsp0.50?　 1.22&nbsp100
9.0/3.0&nbsp9.0&nbsp3.00&nbsp1.40+0.20&nbsp0.60?　 1.22&nbsp100
12.0/4.0&nbsp12.0&nbsp4.00&nbsp1.78+0.30&nbsp0.76?　 1.22&nbsp50
18.0/6.0&nbsp18.0&nbsp6.00&nbsp2.25+0.50&nbsp0.76?　 1.22&nbsp50
24.0/8.0&nbsp24.0&nbsp8.00&nbsp2.54+0.50&nbsp1.00?　 1.22&nbsp50