DWFL 完全阻燃高收縮比雙壁熱縮管
應用
由阻燃聚烯烴和阻燃熱熔膠共擠制造而成，可為或規(guī)定完全阻燃性的應用提供佳解決方案。適合用于汽車配線市場和其他嚴苛環(huán)境。高收縮比可以對較大范圍的元器件提供的環(huán)境保護。可以很好地應用于電子電器、汽車、通訊、航天、軍工等很多行業(yè)中。
特性
?高收縮比：4:1
?外層阻燃聚烯烴和內層阻燃熱熔膠提供了完全阻燃性
?的熱熔膠提供了的環(huán)境密封保護
?的機械性能、化學性能和電性能
?可應用于范圍廣泛的線纜、端子和部件
?符合ROHS、REACH等環(huán)保規(guī)范
顏色
?標準顏色：黑色，內層白色熱熔膠
?其他顏色可定制
操作溫度范圍
?連續(xù)使用溫度：-44℃～135℃
?低起始收縮溫度：110℃
?低完全收縮溫度：135℃
符合標準
?SAE AMS-DTL-23053/4，Class 3
?UL224 125℃ 600V
性能指標
性能 指標要求 測試方法 典型值
縱向收縮率 ≤10％ ASTM D 2671 ≤5％
抗張強度 10.3MPa min ASTM D 638 ≥12MPa
斷裂伸長率 200％ min ASTM D 638 ≥400％
老化后斷裂伸長率
(熱老化175℃,168小時) 100％ min ASTM D 638 ≥300％
熱沖擊
無裂紋 ASTM D 2671 無裂紋
低溫柔軟性
（-55℃，4小時） 無裂紋 ASTM D 2671 無裂紋
絕緣耐壓和擊穿 2500V,60sec,不擊穿 ASTM D 2671 不擊穿
體積電阻率 1014??cm min ASTM D 876 ≥1014??cm
銅腐性 無腐蝕 ASTM D 2671 無腐蝕
阻燃性 VW-1 UL224 通過
規(guī)格尺寸

規(guī)格 收縮前（mm） 收縮后（mm） 標準包裝
（m/條）
內徑（min） 內徑（max） 壁厚 膠厚
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
壁厚包含膠厚
其他規(guī)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 1014??cm min ASTM D 876 ≥1014??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.

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