Principle is: the production of heat shrinkable tubing heated to a high elastic state, the application of load to make it expand, in the case of maintaining the expansion of the rapid cooling, so that it enters the glass state, this state is fixed. As soon as it is heated in use, it changes back to the high elastic state, but then the load is gone and it has to retract.
Heat shrinkable tubing is a special heat shrinkable tubing made of polyolefin, which can also be called EVA. The outer layer of high-quality soft cross-linked polyolefin material and the inner layer of hot melt adhesive composite processing and become, the outer layer of material insulation corrosion, wear-resistant and other characteristics, the inner layer has a low melting point, waterproof sealing and high adhesion and other advantages.
Expanded
Categories and uses of commonly used heat shrinkable tubing
1, PVC heat shrinkable tubing
PVC heat shrinkable tubing has a special function of heat shrinkage, can be heated to 98 ° C above the contraction, easy to use.
Used for electrolytic capacitors, inductors, the product has good performance of high temperature resistance, no secondary shrinkage, can be printed instead. Used for all kinds of rechargeable batteries, single, combined packaging, and on behalf of the design, printing patterns, and can be cut on behalf of customers. Used for all kinds of curtain rods, shower curtain rods, hanging rods, mop rods, broom handles, tool rods, telescopic rods, garden tools, spreader rods and other tubular items of outer wrapping.
2, PET heat shrinkable tube
PET heat shrinkable tube from the heat resistance, electrical insulation properties, mechanical properties are greatly more than pvc heat shrinkable tubing, more importantly, PET heat shrinkable tubing is non-toxic, easy to recycle, the human body and the environment will not have a poisonous effect, more in line with the requirements of environmental protection.
PET heat shrinkable tubing can be used for electrolytic capacitors, inductors and other electronic components, high-grade rechargeable batteries, toys and medical equipment, the outer covering.
Baidu Encyclopedia - Heat Shrinkable Tubing