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发明公开
CN107973972A 一种耐穿刺热收缩双壁管及其制备方法 无效 - 驳回

一种耐穿刺热收缩双壁管及其制备方法
摘要：
本发明公开了一种耐穿刺热收缩双壁管，包括外皮和內胶，按照重量份计，所述外皮料包括以下组份：高密度聚乙烯40-80份、线性低密度聚乙烯20-60份、增韧剂5-20份、助容剂2-5份、阻燃剂20-50份、阻燃协效剂10-25份、润滑剂0.2-1份、抗氧剂0.5-1份、敏化剂0.5-2份；所述內胶料包括以下组份：聚酰胺60-80份、增容剂20-40份、增粘剂2-10份、粘度调节剂0.5-3份、交联抑制剂0.5-2份。本发明中一种耐穿刺热收缩双壁管具有优异的力学强度和抗穿刺能力，能够有效保护内部电线，且内胶流动性好，密封性能优异。
摘要（英）：

The invention discloses a puncture-resistant heat-shrinkable double-wall pipe. The puncture-resistant heat-shrinkable double-wall pipe comprises an outer skin and an inner adhesive, wherein the outerskin material comprises the following components in parts by weight: 40-80 parts of high-density polyethylene, 20-60 parts of linear low-density polyethylene, 5-20 parts of a toughening agent, 2-5 parts of a cosolvent, 20-50 parts of a flame retardant, 10-25 parts of a flame retardant synergist, 0.2-1 part of a lubricant, 0.5-1 part of an antioxidant and 0.5-2 parts of a sensitizing agent; the inner adhesive material comprises the following components in parts by weight: 60-80 parts of polyamide, 20-40 parts of a compatibilizer, 2-10 parts of a tackifier, 0.5-3 parts of a viscosity regulator and 0.5-2 parts of a crosslinking inhibitor. The puncture-resistant heat-shrinkable double-wall pipe has excellent mechanical strength and puncture resistance and can effectively protect internal electric wires, and the inner adhesive has good fluidity and excellent sealing performance.

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