Development of electric wire using biodegradable polymer

We developed an interesting instrument for manufacturing a biodegradable-polymer-insulated cable, with a variety of new functions. Using this instrument, we manufactured a poly-l-lactic acid (PLLA)-insulated cable. We measured the basic electrical insulation characteristic of the PLLA-insulated cable, and the following results were obtained. The mean breakdown strength of PLLA-insulated electric wire was approximately 3.5 times that of a polyvinyl chloride-insulated electric wire (VVF cable). Also, a bending test of the PLLA-insulated electric cable was performed. We obtained good results.