How many common mica bands are there?
Sep 19, 2022
Mica tape, also known as refractory mica tape, is a kind of refractory insulating material. It can be divided into: mica tape for motor and mica tape for cable. According to the structure, it is divided into: double-sided tape, single-sided tape, three-in-one tape, double-film tape, single-film tape, etc. According to mica, it can be divided into: synthetic mica tape, phlogopite tape, muscovite tape.
Mica tape for fire-resistant safety cable is a high-performance mica insulation product with excellent high temperature resistance and combustion resistance. Powder mica tape has good flexibility in normal state, and is suitable for the main fire-resistant insulating layer in various fire-resistant cables. There is basically no volatilization of harmful fumes when burning in an open flame, so this product is not only effective but also safe when used in cables.
Synthetic mica is an artificial mica with large size and complete crystal form synthesized under normal pressure conditions by replacing hydroxyl groups with fluoride ions. Synthetic mica tape is made of mica paper made of synthetic mica as the main material, and then pasting glass cloth on one or both sides with an adhesive. The glass cloth that is pasted on one side of the mica paper is called "single-sided tape", and the one that is pasted on both sides is called "double-sided tape". During the manufacturing process, several structural layers are glued together, then oven-dried, then wound up and cut into tapes of different sizes.
In addition to the characteristics of natural mica tapes: small expansion coefficient, high dielectric strength, high resistivity and uniform dielectric constant, the main feature of synthetic mica tape is high heat resistance level, which can reach A-level fire resistance level (950-1000). °C).
The temperature resistance of synthetic mica tape is more than 1000℃, the thickness range is 0.08 to 0.15mm, and the maximum supply width is 920mm.
Double-sided synthetic mica tape: With synthetic mica paper as the base material, glass fiber cloth as double-sided reinforcing material, and bonded with silicone resin adhesive, it is the ideal material of choice for manufacturing fire-resistant wire and cable. It has the best fire resistance and is recommended for key projects.
Single-sided synthetic mica tape: It is based on synthetic mica paper and uses glass fiber cloth as single-sided reinforcing material. It is the ideal material of choice for manufacturing fire-resistant wires and cables.
