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Basic details of heat shrink tubing with adhesive

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  • Release time:2022-09-20
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[Summary]Heat-shrinkable tubing with adhesive is made of cross-linked polyolefin material and environmentally friendly hot-melt adhesive compound extrusion processing. That is, single-walled tube with hot melt adhesive on the inner layer.

Basic details of heat shrink tubing with adhesive

[Summary]Heat-shrinkable tubing with adhesive is made of cross-linked polyolefin material and environmentally friendly hot-melt adhesive compound extrusion processing. That is, single-walled tube with hot melt adhesive on the inner layer.

  • Classification:Company News
  • Author:
  • Source:
  • Release time:2022-09-20
  • Visits:0
详情

  Heat-shrinkable tubing with adhesive is made of cross-linked polyolefin material and environmentally friendly hot-melt adhesive compound extrusion processing. That is, single-walled tube with hot melt adhesive on the inner layer.

heat shrink tubing

  Production process.

  Co-extrusion: mixing - extrusion (co-extrusion) - irradiation (cross-linking) - expansion - packaging

  Gluing process:

  The difference between direct coating and co-extrusion: co-extruded products are beautiful, the glue layer is smooth, and not easy to fall off. But the co-extrusion process is complicated, at present, the large-size products less use co-extrusion.

  EVA hot melt adhesive: a solvent-free, moisture-free 100% solid fusible polymer; it is solid at room temperature, heated and melted to a certain temperature into a molten state, and has a certain viscosity. EVA hot melt adhesive after melting, light brown or white. EVA hot melt adhesive consists of basic resin, tackifier, viscosity modifier and anti-oxidant components.

  The significance of hot melt adhesive: waterproof sealing, mechanical strain cushioning.

  Flame retardant characteristics: the outer layer is flame retardant, the inner layer of hot melt adhesive is not flame retardant.

  Key indicators :

  Sealing performance: double-walled tube has adhesive inside, so it can play a waterproof sealing effect.

  Adhesive viscosity: different hot melt adhesive viscosity will be different, EVA hot melt adhesive for the most conventional hot melt adhesive.

  Use temperature (different from single-walled tube): the normal use temperature of conventional double-walled tube should be lower than the melting temperature of hot melt adhesive.

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