期刊
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
卷 46, 期 10B, 页码 7122-7124出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.46.7122
关键词
shear piezoelectricity; polymer fiber; chirality; poly(L-lactic acid)
\We studied a method for electrically controlling the bending of a poly(L-lactic acid) (PLLA) fiber. First, we simply evaluated the piezoelectric characteristics of PLLA fibers, which were produced under various conditions, to study bending motion using the measurement system developed here. As a result, a PLLA fiber (drawn seven times, 150 mu m diameter) with a molecular weight of 20,000 showed the largest piezoelectric modulus of 25 pC/N. Then, we found that a PLLA fiber bent with the application of an electric field to the fiber. That is, the bending motion of the PLLA fiber could be controlled. Also, it was demonstrated that the fabrication of an on/off switching system was possible using the bending motion jointly with a logic circuit.
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