Professor Yoshiro Tajitsu, Faculty of Engineering Science, Kansai University, Kansai/ Japan, and Teijin Ltd., Tokyo/Japan, have developed the world's first polylactic acid (PLA) fiber- and carbon-fiber-based piezoelectric fabrics. The fabrics comprise a piezoelectric poly-L-lactic acid (PLLA) and carbon fiber electrode. Plain, twill and satin weave versions were produced for different applications: plain weave detects bending, satin weave detects twisting, and twill weave detects shear and 3-dimensional motion, as well as bending and twisting.
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