完全阻燃高收缩比双壁热缩管

DWFL 完全阻燃高收缩比双壁热缩管
应用
由阻燃聚烯烃和阻燃热熔胶共挤制造而成，可为或规定完全阻燃性的应用提供佳解决方案。适合用于汽车配线市场和其他严苛环境。高收缩比可以对较大范围的元器件提供的环境保护。可以很好地应用于电子电器、汽车、通讯、航天、等很多行业中。
特性
高收缩比：4:1
外层阻燃聚烯烃和内层阻燃热熔胶提供了完全阻燃性
的热熔胶提供了的环境密封保护
的机械性能、化学性能和电性能
可应用于范围广泛的线缆、端子和部件
符合ROHS、REACH等环保规范
颜色
标准颜色：黑色，内层白色热熔胶
其他颜色可定制
操作温度范围
连续使用温度：-44℃～135℃
低起始收缩温度：110℃
低完全收缩温度：135℃
符合标准
SAE AMS-DTL-23053/4，Class 3
UL224 125℃ 600V
性能指标
性能 指标要求 测试方法 典型值
纵向收缩率 ≤10％ ASTM D 2671 ≤5％
抗张强度 10.3MPa min ASTM D 638 ≥12MPa
断裂伸长率 200％ min ASTM D 638 ≥400％
老化后断裂伸长率
(热老化175℃,168小时) 100％ min ASTM D 638 ≥300％
热冲击
无裂纹 ASTM D 2671 无裂纹
低温柔软性
（-55℃，4小时） 无裂纹 ASTM D 2671 无裂纹
绝缘耐压和击穿 2500V,60sec,不击穿 ASTM D 2671 不击穿
体积电阻率 1014Ω•cm min ASTM D 876 ≥1014Ω•cm
铜腐性 无腐蚀 ASTM D 2671 无腐蚀
阻燃性 VW-1 UL224 通过
规格尺寸

规格 收缩前（mm） 收缩后（mm） 标准包装
（m/条）
内径（min） 内径（max） 壁厚 胶厚
Ф7.62 7.62 1.65 1.52+0.30 0.71 1.22
Ф9.02 9.02 2.29 1.52+0.30 0.71 1.22
Ф11.56 11.56 2.54 2.29+0.30 1.32 1.22
Ф17.79 17.79 4.45 2.54+0.30 1.35 1.22
壁厚包含胶厚
其他规格尺寸可定制


DWFL Fully flame-retardant Dual-wall Heat Shrinkable Polyolefin Tubing
Application
DWFL fully flame-retardant dual-wall adhesive-lined heat shrinkable tubing is made by co-extrusion of excellent flame-retardant polyolefin compound and flame-retardant hot-melt adhesive to provide the optimum solution for applications where full retardancy is preferred, or specified. It is suitable for use in the automotive harness market and other harsh environments. DWFL has high shrink ratio to meet most component sealing requirements, and is compatible with a wide range of application equipment. It is typical used in the insulation and sealing of electrical and electronic components, automotive, communication, aerospace and military industry.
Characteristics
High shrink ratio: 4:1
Outer flame-retardant polyolefin and flame-retardant adhesive provide full flame retardancy.
Excellent hot-melt adhesive provides good environmental sealing protection.
Excellent mechanical, chemical and electrical properties.
Suitable for a wide range of dimensions of wire, connectors and components.
ROHS and REACH compliant
Color
Standard color: black with white inner adhesive
Other colors are available upon request.
Operating Temperature Range
Operating temperature: -40℃～135℃
Minimum shrink temperature: 110℃
Minimum fully recovery temperature: 135℃
Approvals
SAE AMS-DTL-23053/4，Class 3
UL224 125℃ 600V
Property
Property Requirement Test method Typical data
Longitudinal shrinkage ≤10％ ASTM D 2671 ≤5％
Tensile strength 10.3MPa min ASTM D 638 ≥12MPa
Elongation at break 200％ min ASTM D 638 ≥400％
Elongation after aging
（175℃,168hrs） 100％ min ASTM D 638 ≥300％
Heat shock
No crack ASTM D 2671 No crack
Low-temperature flexibility（-55℃,4hrs） No crack ASTM D 2671 No crack
Dielectric voltage withstand 2500V,60sec,no breakdown ASTM D 2671 No breakdown
Volume resistivity 1014Ω•cm min ASTM D 876 ≥1014Ω•cm
Copper corrosion No corrosion ASTM D 2671 No corrosion
Flammability VW-1 UL224 Pass
Sizes


Size
As supplied
(mm) After recovered(mm)
Standard packing
(m/pc,m/roll)
Inside diameter
(min) Inside diameter
(max) Wall thickness Adhesive thickness
(nominal)
Ф7.62 7.62 1.65 1.52+0.30 0.71 1.22
Ф9.02 9.02 2.29 1.52+0.30 0.71 1.22
Ф11.56 11.56 2.54 2.29+0.30 1.32 1.22
Ф17.79 17.79 4.45 2.54+0.30 1.35 1.22
Wall thickness includes adhesive thickness.
Other sizes are available upon request.