Cladding-free thermal drawing for scalable reel-to-reel manufacturing of piezoelectric coaxial polyvinylidene fluoride fibers (opens in new tab)

The thermal drawing process (TDP) offers a promising route for fabricating long functional fibers from macroscopic multimaterial preforms; however, its potential is currently restricted by two critical bottlenecks: the difficulty in integrating highly conductive, flexible electrodes and the processing constraints imposed by conventional shear-based rheological assessments. Because such assessments cannot capture tensile rupture behavior, semi-crystalline polymers typically require a cladding ...