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Materials 2016, 9(7), 523; doi:10.3390/ma9070523

Preparation and Properties of Electrospun Poly (Vinyl Pyrrolidone)/Cellulose Nanocrystal/Silver Nanoparticle Composite Fibers

1
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
2
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
3
School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
4
Department of Environment & Forest Resources Science Faculty of Agriculture, Shizuoka University, Shizuoka 422-8529, Japan
*
Authors to whom correspondence should be addressed.
Academic Editor: Armando J. D. Silvestre
Received: 12 May 2016 / Revised: 8 June 2016 / Accepted: 21 June 2016 / Published: 28 June 2016
(This article belongs to the Section Advanced Composites)
View Full-Text   |   Download PDF [3793 KB, uploaded 28 June 2016]   |  

Abstract

Poly (vinyl pyrrolidone) (PVP)/cellulose nanocrystal (CNC)/silver nanoparticle composite fibers were prepared via electrospinning using N,N′-dimethylformamide (DMF) as a solvent. Rheology, morphology, thermal properties, mechanical properties, and antimicrobial activity of nanocomposites were characterized as a function of material composition. The PVP/CNC/Ag electrospun suspensions exhibited higher conductivity and better rheological properties compared with those of the pure PVP solution. The average diameter of the PVP electrospun fibers decreased with the increase in the amount of CNCs and Ag nanoparticles. Thermal stability of electrospun composite fibers was decreased with the addition of CNCs. The CNCs help increase the composite tensile strength, while the elongation at break decreased. The composite fibers included Ag nanoparticles showed improved antimicrobial activity against both the Gram-negative bacterium Escherichia coli (E. coli) and the Gram-positive bacterium Staphylococcus aureus (S. aureus). The enhanced strength and antimicrobial performances of PVP/CNC/Ag electrospun composite fibers make the mat material an attractive candidate for application in the biomedical field. View Full-Text
Keywords: electrospun; poly (vinyl pyrrolidone) (PVP); cellulose nanocrystals; silver nanoparticles; rheology; antimicrobial properties electrospun; poly (vinyl pyrrolidone) (PVP); cellulose nanocrystals; silver nanoparticles; rheology; antimicrobial properties
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MDPI and ACS Style

Huang, S.; Zhou, L.; Li, M.-C.; Wu, Q.; Kojima, Y.; Zhou, D. Preparation and Properties of Electrospun Poly (Vinyl Pyrrolidone)/Cellulose Nanocrystal/Silver Nanoparticle Composite Fibers. Materials 2016, 9, 523.

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