PVDF heat shrink tube is actually the use of polyvinylidene fluoride resin copolymer extrusion expansion of the heat shrink tube, its full name is polyvinylidene fluoride heat shrink tube, polyvinylidene fluoride is also referred to as PVDF, so generally referred to as PVDF heat shrink tube. Compared to conventional heat shrink tubing, the material has changed, but the production process is basically the same, through the three main steps of extrusion, radiation cross-linking and expansion to manufacture.
PVDF heat shrink tubing and PE heat shrink tubing although only change the material, but the physical and chemical properties are very different. PVDF both fluorine resin and general resin characteristics, the resin itself has good chemical resistance, high temperature resistance, oxidation resistance, weather resistance, radiation resistance, but also has piezoelectricity, dielectricity, thermoelectricity and other special properties, so PVDF heat shrink tubing also has the above Therefore, PVDF heat-shrinkable tubes also have the above-mentioned properties.
Advantages of PVDF heat shrink tubing：
1. PVDF heat shrinkable tube temperature range is also very wide, with minus 55 ℃ not brittle crack, 175 ℃ high temperature environment does not deform the characteristics of high and low temperature resistance, has a good thermal stability.
2. mechanical properties are also very good, with very good rigidity, hardness, wear resistance and creep resistance, high fatigue resistance under cyclic load, mechanical strength is recognized as higher than other fluoropolymers.
3.Resistant to most chemical solvents and oil nights, it has the property of not dissolving when soaked in solvents and oil for a long time, and has the property of low adsorption and a very smooth surface.
4.PVDF heat shrink tubing can be produced and processed for medical grade products because of its biological inertness, low water absorption, low adsorption and non-toxic bacterial resistance properties, so it is also in line with the requirements of medical grade.
5.Is currently more transparent, and can be flame retardant heat shrinkable tube, PE and EVA transparent heat shrinkable tube can not meet the requirements of flame retardant, if you need transparent and need flame retardant, you can choose PVDF heat shrinkable tube, to make up for the transparent heat shrinkable tube is not flame retardant vacancy.
PVDF heat shrink tubing is also very versatile, widely used in high-end fields such as electrical and electronics, aerospace, medical equipment, military industry, etc.
