Titanium Dioxide and Polyethylmethacrylate electrospun nanofibers: assessing the technique parameters and morphological characterization

Authors

  • Jessica Dias santos São Paulo State University (Unesp) – Institute of Science and Technology, São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.
  • Tabata Prado Sato São Paulo State University (Unesp) – Institute of Science and Technology, São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.
  • Aline Lins de Lima São Paulo State University (Unesp) – Institute of Science and Technology, São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.
  • Andrea Souza Nogueira São Paulo State University (Unesp) – Institute of Science and Technology, São José dos Campos – SP – Brazil.
  • Cristiane Campos Costa Quishida São Paulo State University (Unesp) – Institute of Science and Technology, São José dos Campos – SP – Brazil.
  • Alexandre Luiz Souto Borges São Paulo State University (Unesp) – Institute of Science and Technology, São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.

DOI:

https://doi.org/10.14295/bds.2019.v22i1.1630

Abstract

This work studied the synthetization and morphological characterization of Polyethylmethacrylate (PEMA) nanofibers (NFs) containing titanium dioxide (TiO2) produced by the electrospinning technique. The solution to produce the nanofibers was prepared by dissolving 2.5g PEMA in 6.75mL of 1.1.2.2- tetrachloroethane and 3.375mL of dimethylformamide (DMF), and 0.405g of TiO2 was added to the solution. The nanofiber production used different distances between the tip of the needle to the collector (10, 12 and 15 cm) and two flow rates (0.05 mLh-1 and 0.08 mLh-1) were employed, while the applied voltage was 17kV. The NF morphology was analyzed by Scanning Electron Microscopy (SEM) and Image J software. We used Fourier Infrared Spectroscopy (FTIR) and Energy Dispersive X-Ray Spectroscopy (EDS) to evaluate the structural properties. All parameters were effective in the NF production, however it was shown that the distance of 12 cm produced the best NFs. The mean diameters showed no statistically significant difference between the samples. The FTIR analysis showed characteristic peaks of PEMA and TiO2. It was concluded that the employed method was efficient for NF production containing PEMA and TiO2,and the morphological characteristics of the NFs were influenced by the voltage and distance.

Keywords

Polymer; Fibers; Electrochemistry.

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Published

2019-01-31

Issue

Vol. 22 No. 1 (2019): Jan. - Mar. / 2019 - Published January 2019

Section

Clinical or Laboratorial Research