Preparation and Properties of Tb3+ Doped PVDF/PLLA Electrospun Multifunctional Piezoelectric Nanofibers
HE Shifeng, XUE Rui, HE Yongqing, HUANG Yan, WU Yibo, SHI Qisong*
Beijing Key Laboratory of Special Elastomer Composite Materials, College of New Materials and Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China
Abstract: Electrospinning was used to blend polyvinylidene fluoride (PVDF) with a small amount of crystalline polymer (poly-L-lactic acid (PLLA)) and doped with a rare earth fluorescent complex (Tb(TTA)3(TPPO)2) prepared composite nanofibers with both yellow-green fluorescence and piezoelectric function. The effects of blend systems and rare earth complexes on the morphology, crystal structure, sensitivity, fluorescence pro-perties and other properties of PVDF composite nanofibers were studied by means of scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), atomic force microscope (AFM), X-ray diffraction (XRD) spectroscopy, differential scanning calorimetry (DSC), fluorescence (FL) and sensitivity and other characterization methods. The results show that the addition of 5wt% of the fluorescent complex can make the β phase content of the composite nanofibers reach 95%. The sensor made of composite nanofibers exhibites excellent sensitivity (0.42 kPa-1) at a pressure of 0—1 kPa. At the same time, the piezoelectric output of the sensor also has a good performance, output voltage and output current are 2.5 V and 800 nA, respectively. The composite nanofibers with both yellow-green fluorescence and piezoelectric functions are expected to be applied in piezoelectric sensors, motion monitoring systems, bioelectronic skin and other fields.
1 Deng W L, Yang T, Jin L, et al. Nano Energy, 2019, 55, 516. 2 Najjar R, Luo Y, Jao D, et al. Polymers, 2017, 9, 479. 3 Fu G M, Pan G X, Wu X T, et al. Polymer Materials Science and Engineering, 2021, 37(8), 154(in Chinese). 付贵茂, 潘顾鑫, 吴晓彤, 等. 高分子材料科学与工程, 2021, 37(8), 154. 4 Fryczkowski R, Fryczkowska B, Biniaś W, et al. Composites Science and Technology, 2013, 89, 186. 5 Mukri N I, Velayutham T S, Gan W C, et al. Materials Today: Procee-dings, 2018, 5, S130. 6 Dong W Y, Wang H T, Ren F L, et al. ACS Sustainable Chemistry & Engineering, 2016, 4, 4480. 7 Mishra S, Sahoo R, Unnikrishnan L, et al. Materials Today Communications, 2021, 26, 101958. 8 Lu P, Wang Y X, Huang L J, et al. Nanomaterials, 2020, 10, 694. 9 Zhao Y X, Chen Y J, Pan G X, et al. Chemical Journal of Chinese Universities, 2019, 40(4), 824(in Chinese). 赵宇轩, 陈艳君, 潘顾鑫, 等. 高等学校化学学报, 2019, 40(4), 824. 10 Martins P, Lopes A C, Lanceros-Mendez S. Progress in Polymer Science, 2014, 39, 683. 11 Fu G M, Shi Q S, He Y Q, et al. Polymer, 2022, 240, 124496. 12 Cai X M, Lei T P, Sun D H, et al. RSC Advances, 2017, 7, 15382. 13 Yang L, Zhao Q Y, Shen M X, et al. Materials Reports, 2020, 34(24), 24145(in Chinese). 杨路, 赵秋莹, 申明霞, 等. 材料导报, 2020, 34(24), 24145. 14 Singh D, Choudhary A, Garg A. ACS Applied Materials & Interfaces, 2018, 10, 2793. 15 Hernandez C, Gupta S K, Zuniga J P, et al. Journal of Materials Science & Technology, 2021, 66, 103. 16 Cacciotti I, Bianco A, Pezzotti G, et al. Materials Chemistry and Phy-sics, 2011, 126, 532.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2024, Vol. 38 
