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Kynar Wire Black (5M) £3.85

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Kynar wire 30 AWG (Black 5M length)

Polyvinylidene (PVDF) or KYNAR is a thermoplastic fluoropolymer that is often used as insulation jacketing for wire and cable that provides a variety of benefits. It can be used across multiple industries.

KYNAR wire insulation, when used as a jacketing material for cables, is ideally suited for applications that require flexibility, strength, and low density. It boasts abilities that allow it to bend with durability throughout heavy use.

Specifically, it is extremely beneficial in applications that require chemical resistance, as it is capable of withstanding intense substances such as chlorine and hydrogen gases. KYNAR-insulated cable and wire also provides resistance to high temperatures, flames, and low smoke generation.


Tech Tin Files: Cause of conductivity Band Theory

  • Quantum mechanics states that electrons in an atom cannot take on any arbitrary energy value. Rather, the electrons must occupy fixed energy levels, and values between these levels are impossible. When a large number of such allowed energy levels are spaced close together (in energy-space) - i.e., have similar (minutely differing) - energies, we can talk about these energy levels together as an "energy band." There can be many such energy bands in a material, depending on the atomic number {number of electrons (if atom is neutral)} and their distribution (besides external factors like environmental modification of the energy bands).
  • The material's electrons seek to minimize the total energy in the material by going to low energy states; however, the Pauli exclusion principle means that they cannot all go to the lowest state. The electrons instead "fill up" the band structure starting from the bottom. The characteristic energy level up to which the electrons have filled is called the Fermi level. The position of the Fermi level with respect to the band structure is very important for electrical conduction: only electrons in energy levels near the Fermi level are free to move around since the electrons can easily jump among the partially occupied states in that region. In contrast, the low energy states are rigidly filled with a fixed number of electrons at all times, and the high energy states are empty of electrons at all times.
  • In metals there are many energy levels near the Fermi level, meaning that there are many electrons available to move. This is what causes the high electronic conductivity in metals. An important part of band theory is that there may be forbidden bands in energy: energy intervals that contain no energy levels. In insulators and semiconductors, the number of electrons happens to be just the right amount to fill a certain integer number of low energy bands, exactly to the boundary. In this case, the Fermi level falls within a band gap. Since there are no available states near the Fermi level, and the electrons are not freely movable, the electronic conductivity is very low.