Abstract

Poly(l-lactic acid) (PLLA) based piezoelectric polymers are gradually becoming the substitute for the conventional piezoelectric ceramic and polymeric materials due to their low cost and biodegradable, non-toxic, piezoelectric and non-pyroelectric nature. To improve the piezoelectric properties of melt-spun poly(l-lactic acid) (PLLA)/BaTiO3, we optimized the post-processing conditions to increase the proportion of the β crystalline phase. The α → β phase transition behaviour was determined by two-dimensional wide-angle x-ray diffraction and differential scanning calorimetry. The piezoelectric properties of PLLA/BaTiO3 fibres were characterised in their yarn and textile form through a tapping method. From these results, we confirmed that the crystalline phase transition of PLLA/BaTiO3 fibres was significantly enhanced under the optimised post-processing conditions at a draw ratio of 3 and temperature of 120 °C during the melt-spinning process. The results indicated that PLLA/BaTiO3 fibres could be a one of the material for organic-based piezoelectric sensors for application in textile-based wearable piezoelectric devices.

Details

Title
Fabrication of piezoelectric poly(l-lactic acid)/BaTiO3 fibre by the melt-spinning process
Author
Oh, Hyun Ju 1 ; Do-Kun, Kim 1 ; Choi Young Chan 2 ; Seung-Ju, Lim 3 ; Jeong, Jae Bum 4 ; Ko, Jae Hoon 1 ; Wan-Gyu, Hahm 1 ; Sang-Woo, Kim 5 ; Lee, Yongju 6 ; Kim, Hyeok 6 ; Yeang Byeong Jin 1 

 Korea Institute of Industrial Technology, Advanced Textile R&D Department, Ansan, Republic of Korea (GRID:grid.454135.2) (ISNI:0000 0000 9353 1134) 
 Hanyang University ERICA, Department of Chemical Engineering, Ansan, Republic of Korea (GRID:grid.49606.3d) (ISNI:0000 0001 1364 9317) 
 Kyung Hee University, Department of Advanced Materials Engineering for Information & Electronics, Yongin, Republic of Korea (GRID:grid.289247.2) (ISNI:0000 0001 2171 7818) 
 Korea Institute of Ceramic Engineering and Technology, Nano Materials & Nano Technology Center, Jinju, Republic of Korea (GRID:grid.410900.c) (ISNI:0000 0004 0614 4603) 
 Sungkyunkwan University (SKKU), School of Advanced Materials Science and Engineering, Suwon, Republic of Korea (GRID:grid.264381.a) (ISNI:0000 0001 2181 989X) 
 University of Seoul, School of Electrical and Computer Engineering, Seoul, Republic of Korea (GRID:grid.267134.5) (ISNI:0000 0000 8597 6969) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2449451848
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.