The heat shrinkable tube is a kind of tube that contracts when it meets heat, also known as heat shrinkable tube, which is often used to protect various wires and cables. Many friends don't know much about it and don't know what material the heat shrinkable tube is made of. In fact, there are many raw materials that can be used to produce and process heat shrinkable tubes, mainly including the following:
1. PVC heat shrinkable tube is a common heat shrinkable tube.
2. PE
is a high-pressure polyethylene material, which is widely used in the maintenance of household appliances or electronic components. It can also be used as a base material and mixed with other polymers, such as PE and EDPM*** to make an outdoor cable heat shrinkable sleeve with high compressive strength and aging resistance.
3. PTFE
Polytetrafluoroethylene, commonly known as Teflon heat shrinkable tube, can resist high temperature of 26℃, most analytical chemical organic solutions, and has high wear and fracture toughness.
4. EPDM
, also known as EPDM heat shrinkable tube, has high-quality physical and technological properties and wear resistance, and is mainly used for cable sheath maintenance of electronic components of cable harness, and its main color is black.
5, FEP
that is, perfluorobutadiene, which has excellent wear resistance and does not ignite, not only has similar characteristics to PTFE, but also has good processability of thermoplastics.
6. Silicone
Silicone heat shrinkable tube is made of silicone rubber, which is mainly used in medical machinery, electrical products, aerospace, military, automobiles, electronic components, transformers, engines and other fields that have certain plasticity and temperature resistance requirements for wires and cables.
second, which is the better material for heat shrinkable tubes
There are many materials for heat shrinkable tubes, but there is no difference between good and bad materials, mainly according to the application fields of heat shrinkable tubes, such as:
1. For battery capacitors, PVC and PET heat shrinkable tubes are used for ultra-thin, fast shrinkage and many colors.
2. For general electronic products, eva heat shrinkable tubes are commonly used if they are required to be soft and resistant to low voltage of 6V; For high pressure resistance, eva is added with rubber.
3. For better wear resistance, PE or HDPE heat shrinkable tubes are selected.
4. If high temperature resistance is required, fluororubber, polyvinylidene fluoride and Teflon materials can be used.
to sum up, different materials of heat-shrinkable tubes have their own application fields, and the suitable materials are mainly selected according to the purpose and demand when selecting.