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Principle of Heat Shrinkable Tube shrinkage

2022-09-07
Heat Shrinkable Tube has the characteristics of softness, flame retardant, environmental protection, wear resistance and corrosion resistance, etc. It is more and more widely used in daily life. All kinds of Heat Shrinkable Tube are needed in the production of electronic appliances, sports equipment, communication occupation, car and boat production, power cables and cables, etc. After heating, the expanded Heat Shrinkable Tubee can still shorten to its pre-expansion posture, thanks to its strange molecular structure after irradiation cross-linking.

Polyethylene is the preferred material of heat shrinkable tube, is a kind of ethylene monomer polymerization into a linear molecular structure of the assembly, ethylene monomer molecular formula is H2C=CH2, under polymerization conditions, each ethylene monomer molecule of the double bond opened, a number of molecules to form a polymer polyethylene line character. Polyethylene is the most common plastic material, they do not have the function of heat shortening.

In through and other fillers (master, flame retardant, etc.) fully mixed into the master material of heat shrink tube, master material through extrusion molding into heat shrink sleeve semi-finished products. Then the polyethylene tube at the moment is irradiated and cross-linked to change the linear molecular structure into the network molecular structure. After disposal, the polyethylene tube has the function of shape memory. If it is put in the oven, it will only become soft and not become molten. The expansion of it constitutes our heat shrinkable tube products.

Heat shrinkable tube with shape memory function can protect wire and cable, cable connector and metal pipe rod. It can be used as special insulating material in aerospace, cutting-edge technology and military technology departments. Heat shrinkable casing is more and more welcomed by all walks of life.

Heat Shrinkable Tube

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Waterproof effect of Heat Shrinkable Double-walled Tube
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