Flame-retardant double-wall heat-shrinkable tubing:
A kind of semi-flexible inner layer with hot melt adhesive heat-shrinkable tubes. The outer layer is formed by radiation cross-linked polyolefin inner layer is a specially designed plastic nature of walls; heated walls melt, and filled with the outer shrink pores, or cracks, after cooling, double-wall pipe wall thickness uniform, solid. Are widely used in electronic equipment wiring waterproofing, sealing wire branch, fixed, metal pipeline corrosion protection, and to prevent relaxation of the polymer chain generated by the loose and fall off, such as water under the lighting, automotive tubing, wiring harness and other high-level. By UL224 certification. Commonly used colors: red, orange, yellow, blue, green, white, black (common)
温度范围
•连续使用温度:-55℃~125℃
•最低起始收缩温度:80℃
•最低完全收缩温度:120℃
技术指标Technical Data |
序号 | 测试项目Property | 测试方法Test Method | 检测结果Typical Value | 1 | 拉伸强度Tensile Strength | ASTM D638 | 14 N/mm2 | 2 | 断裂伸长率Ultimate Elongation | ASTM D638 | 460% | 3 | 热冲击Heat Shock @ 250º C | UL 224 | 通过passes | 4 | 低温试验Cold Bend @ -30ºC | ASTM D2671 | 通过passes | 5 | 阻燃性 Flammability | UL 224, VW-1 | 通过passes | 6 | 击穿强度Dielectric Strength | ASTM D149 | 15kV/mm | 7 | 体积电阻率Volume Resistivity | ASTM D257 | 1x1014Ω•cm | 8 | 纵向收缩率Longitudinal Change | ASTM D2671 | Inside +/-10% | 9 | 吸水率Water Absorption | ASTM D570 | <0.5% |
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