苏州保温管防水帽电话 辐射交联聚乙烯热收缩

具有良好的耐热老化、耐腐蚀和耐环境应力开裂性能，使用寿命长。

序号 项目 单位 指标 检测方法
1 拉伸强度 Mpa ＞17 GB1040
2 断裂伸长率 % ＞400 GB1040
3 纸卡软化点 ℃ ＞90 GB/T1633
4 脆化温度 ℃ ＜-65 GB/T5470
5 耐环境压力开裂时间 （F50）(h) ＞1000 GB/T1842
6 耐击穿电压强度 MV/m ＞25 GB/T1408
7 体积电阻率 Ω﹒m ＞1×1012 GB/T1410
8 耐化学介质腐蚀 （浸7d）（%） 10% HCL % ＞85 SY/T0413
  10%NaOH % ＞85 SY/T0413
  3%Nacl % ＞85 SY/T0413
9 耐热老化 （150℃）(%)
 拉伸强度 Mpa ＞14 GB/T1040
 断裂伸长率 % ＞30 GB/T1040
10 剥离强度 N/cm
 对有底漆的钢管 N/cm ＞35 GB/T2792
 对聚乙烯层 N/cm ＞35 GB/T2792

是我公司管道热缩防腐保温材料中的一部分，具有加热自然恢复原状之功能。

一、简介：热缩帽，也称防水帽，是在辐照交联聚乙烯基材上复合热熔胶制成的。由于一开                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 分，具有加热自然恢复原状之功能。
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