Poly(vinylidene fluoride)/Plasma-Treated BaTiO3 Nanocomposites with Enhanced Electroactive Phase

• Published in: Macromolecular research 2018, 26(11), , pp.965-972
• Main Authors: Ding, Ran, Gong, Lei, Li, Ming-ming, Chen, Shu-hua, Zhan, Shi-ping, Sun, Xu-dong, Zhang, Cheng, Shao, Tao
• Format: Article
• Language: English
• Subjects: Barium titanates; Characterization and Evaluation of Materials; Chemistry; Chemistry and Materials Science; Complex Fluids and Microfluidics; Dielectric loss; Dielectric strength; Dipole interactions; Fluorides; Functional groups; Nanochemistry; Nanocomposites; Nanoparticles; Nanotechnology; Permittivity; Physical Chemistry; Polymer Sciences; Polyvinylidene fluorides; Soft and Granular Matter; Thermal plasmas; Vinylidene fluoride; 고분자공학
• ISSN: 1598-5032; 2092-7673
• DOI: 10.1007/s13233-018-6118-9

Functional C=O and C-O groups are successfully fixated onto the surface of a high dielectric constant material barium titanate (BaTiO 3 ) via non-thermal plasma. The strong dipole interaction exists between these functional groups and CH 2 or CF 2 groups of poly(vinylidene fluoride) (PVDF), resulting in the enhancement of the electroactive γ -phase of PVDF/BaTiO 3 nanocomposites on one hand; on the other hand the dispersion of BaTiO 3 is enhanced in the PVDF matrix, where the smaller spherulite size and better hydrophilic property are observed in the PVDF/plasmatreated BaTiO 3 nanocomposite, comparing with the untreated ones. Therefore, the PVDF/plasma-treated BaTiO 3 nanoparticles exhibited higher dielectric constant and lower dielectric loss than the PVDF/BaTiO 3 nanoparticles.