一、What is pvdf heat shrink tubing
pvdf heat shrink tubing is actually a type of heat shrink tubing made by extruding and expanding polyvinylidene fluoride resin copolymer. Its full name is polyvinylidene fluoride heat shrink tubing. Polyvinylidene fluoride is also abbreviated as pvdf, so it is generally referred to as pvdf heat shrink tubing. Compared with conventional heat shrink tubes, the material has changed, but their production processes are basically the same, all manufactured through three main steps: extrusion, radiation cross-linking, and expansion.
Although pvdf heat shrink tubing and PE heat shrink tubing only change the material, their physical and chemical properties are vastly different. pvdf combines the characteristics of fluororesin and general-purpose resin. Besides having excellent chemical corrosion resistance, high-temperature resistance, oxidation resistance, weather resistance and radiation resistance, the resin itself also possesses special properties such as piezoelectricity, dielectricity and thermoelectricity. Therefore, pvdf heat shrink tubing also has the above-mentioned superior properties.
二、Advantages of pvdf Heat Shrink Tubing
1.The temperature resistance range of pvdf heat shrink tubing is also very wide. It has the characteristics of not cracking at -55 ℃ and not deforming at 175℃ high temperature, and has good thermal stability.
2.Its mechanical properties are also extremely excellent, featuring very good rigidity, hardness, wear resistance and creep resistance. It has high fatigue resistance under cyclic loads, and its mechanical strength is widely recognized as superior to other fluoropolymers.
3.It is resistant to most chemical solvents and oils, and has the characteristic of not swelling after long-term immersion in solvents and oils. Moreover, it has low adsorption and a very smooth surface.
4.pvdf heat shrinkable tubes can be processed into medical-grade products. Due to their biological inertness, low water absorption, low adsorption, and non-toxicity and bacterial resistance, they also meet the requirements of medical-grade products.
5.It is currently a heat shrink tube with relatively high transparency and flame retardancy. Transparent heat shrink tubes made of PE and EVA materials cannot meet the flame retardant requirements. If both transparency and flame retardancy are needed, pvdf heat shrink tubes can be chosen, which fills the gap of non-flame retardancy of transparent heat shrink tubes.
pvdf heat shrinkable tubes also have a wide range of applications and are widely used in high-end fields such as electronics and electrical appliances, aerospace, medical devices, and military industry. As a leading manufacturer of pvdf heat shrink tubes, Fuxinyi strictly controls the quality at every level, ensuring stable and reliable quality.