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Fabrication and characterization of silver nanostructures conformal coating layer onto electrospun N6 nanofibers with improved physical properties

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Abstract

In this communication, colloidal silver (Ag) nanostructures were synthesized and deposited directly onto electrospun nylon 6 (N6) fibers without using surface modifier in the form of an ultrathin conformal coating layer via a hydrothermal treatment. The morphological, structural, and thermal properties of the Ag/N6 nanocomposite membranes were analyzed by field-emission scanning electron microscopy (FESEM), X-ray diffraction, X-ray photoelectron spectroscopy, and differential scanning calorimetry (DSC). FESEM imaging showed that the Ag coating on individual N6 nanofibers was continuous, uniform, and compact. A DSC study of the nanocomposites illustrated a strong interfacial adhesion of the Ag layer with N6 nanofiber surfaces via strong hydrogen bonds. A possible mechanism for hydrogen bond formation during the hydrothermal process was proposed. Further, it was found that the transition of the meta-stable γ-form into the thermodynamically more stable α-form of N6 structure was achieved; therefore, the hydrothermal process did not cause chain degradation.

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Acknowledgments

We acknowledge the research funds supported by the National Secretary of Higher Education, Science, Technology and Innovation of Ecuador, SENESCYT (known as Prometeo Project Scholarship “Viejos Sabios”-2014 year). Abdalla Abdal-hay acknowledges the grant from “Prometeo Grant Fellow Project” at University of Cuenca. Abdalla Abdal-hay also kindly thanks professor Pablo Vanegnas the head of the mechanical Engineering Department at Cuenca University for his assistance and guides. We would also like to thank KBSI, Jeonju branch and Centre for University Research Facility of CBNU for FE-SEM images.

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Authors and Affiliations

  1. Department of Bionano System Engineering, College of Engineering, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Abdalla Abdal-hay

  2. Department of Computer Science, Faculty of Engineering, Universidad de Cuenca, Cuenca, 01.01.168, Ecuador

    Abdalla Abdal-hay

  3. Department of Engineering Materials and Mechanical Design, Faculty of Engineering, South Valley University, Qena, Egypt

    Abdalla Abdal-hay

  4. Department of Mechanical Engineering, (CEREM) College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia

    Khalil Abdelrazek Khalil

  5. Department of Urology, Gangneung Asan Hospital, College of Medicine, University of Ulsan, Gangneung, Korea

    Juhyun Lim

  6. Department of Mechanical Design Engineering, Advanced Wind Power System Research Institute, Chonbuk National University, Jeonju, 561-756, Republic of Korea

    Jae Kyoo Lim

Authors
  1. Abdalla Abdal-hay
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  2. Khalil Abdelrazek Khalil
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  3. Juhyun Lim
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Corresponding authors

Correspondence to Abdalla Abdal-hay or Jae Kyoo Lim.

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Fig. S1. Energy dispersive X-ray spectroscopic (EDS) of the composites sample (TIFF 8176 kb)

10971_2014_3337_MOESM2_ESM.tif

Fig.S2. FESEM images of electrospun N6 scaffolds immersed in silver colloidal solution at a 150 °C reaction temperature for exposure time; (A,B) 0.5, (C,D) 1, (E,F) 2, and (G,H) 3 h (TIFF 4554 kb)

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Abdal-hay, A., Khalil, K.A., Lim, J. et al. Fabrication and characterization of silver nanostructures conformal coating layer onto electrospun N6 nanofibers with improved physical properties. J Sol-Gel Sci Technol 71, 184–191 (2014). https://doi.org/10.1007/s10971-014-3337-1

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  • DOI: https://doi.org/10.1007/s10971-014-3337-1

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