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Thermoplastic elastic wire can effectively extend the service life of the terminal
The terminal is most directly used with wire and cable. It can also be said that the performance of the wire and cable can make the function of the terminal more extreme. The service life of the terminal will also increase and the current will be more stable. Therefore, wires and cables are often required to have good flexibility.
In the use with terminal blocks, rubber is often used as the insulation and sheath of wires and cables. Rubber has excellent flexibility, good wear resistance and weather resistance, but the processing complexity and cost of rubber.
In recent years, a large number of thermoplastic elastomers have emerged, and people can use plastic wire and cable processing equipment to produce products that are as soft as rubber cables.
The terminal has very standard requirements on the performance of the wire, but it can accept different materials. Commonly seen are ethylene-propylene thermoplastic elastomers, polyester thermoplastic elastomers, polyurethane thermoplastic elastomers, nitrile-polyvinyl chloride elastomers, and fluorine-containing thermoplastic elastomers.
There are two main ways to prepare thermoplastic elastomers: by mechanically blending rubber with a similar molecular solubility index and thermoplastics, and using dynamic cross-linking technology to combine the two;
Using two different prepolymers for block copolymerization, one polymer segment (soft segment) provides elasticity, and the other polymer segment (hard segment) provides cross-linking junctions to form a thermoplastic elastomer, such as polyurethane elastomer .
Terminals should make more use of their own power-carrying capacity, so thermoplastic elastomer processing is easy to use and flexible, and cables with special specifications are very suitable, effectively helping wire manufacturers to better adapt to market needs.
The double connection of wiring terminals and wires and cables will definitely bring more benefits to equipment manufacturers.