The metal fiber blended conductive yarn is a conductive yarn prepared by blending metal short fibers with ordinary conventional fibers in a certain ratio, and is a conductive yarn having a non-uniform conductive component. It is based on ordinary conventional fibers and uses metal fibers as conductive components. The distribution of metal fibers in such yarns is generally uniform distribution from the longitudinal direction, and is randomly distributed in cross section, that is to say, it is impossible for metal fibers to completely reach a multi-phase uniform distribution state in the conductive yarns.
There are three kinds of conductive mechanisms for metal fiber blended conductive yarns: conductive channel mechanism, tunneling mechanism, and field emission mechanism.
1. When the metal fibers can overlap each other in the conductive yarn, the probability of forming a chain-shaped conductive channel is large, and the conductive mechanism of the conductive channel plays a leading role;
2. In the conductive yarn, the metal fibers cannot overlap each other, but the spacing is small, and the chain-shaped conductive channel cannot be formed. When the applied voltage is low, the tunneling conductive mechanism plays a leading role;
3. In the conductive yarn, the metal fibers cannot overlap each other, but the spacing is small, and the chain-shaped conductive channel cannot be formed. When the applied voltage is high, the field emission conduction mechanism plays a leading role.
Since the metal fiber blended conductive yarn is the dominant component non-uniform conductive yarn, this determines that the electrical conductivity of the metal fiber blended yarn is a combined result of the three conductive mechanisms.
