Structural and mechanical properties of cellulose acetate/graphene hybrid nanofibers: Spectroscopic investigations

Cellulose acetate/graphene (CA/graphene) and cellulose acetate/graphene-COOH (CA/graphene-COOH) hybrid nanofibers were fabricated via electrospinning technique, and their morphologies, crystallinity and mechanical properties were investigated. The added amounts of graphene and graphene-COOH were varied from 0.5 to 5.0 wt%. The crystal structures and morphologies of the resultant hybrid nanofibers were investigated by wide angle X-ray diffraction (WAXD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. Graphene-COOH incor- porated CA nanofiber mats showed higher Young's modulus of about 910 MPa among than those of CA/graphene nanofibers, which is due to molecular interactions between -COOH groups in acid-treated graphene and C=O groups in CA via hydrogen bonding. This specific interaction was demonstrated by spectroscopic studies (Raman and Fourier transform infrared (FT-IR) spectroscopies).

[1]  Hua Zhang,et al.  Graphene-based composites. , 2012, Chemical Society reviews.

[2]  Paul A. Rundquist,et al.  Advances in cellulose ester performance and application , 2001 .

[3]  Y. Gogotsi,et al.  Raman scattering of non–planar graphite: arched edges, polyhedral crystals, whiskers and cones , 2004, Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[4]  Jong-Chul Park,et al.  Development of novel synthetic method of carbon nanotubes from electrospun polystyrene fibers by using microwave heating , 2011 .

[5]  N. Koratkar,et al.  Enhanced mechanical properties of nanocomposites at low graphene content. , 2009, ACS nano.

[6]  Il-hwan Kim,et al.  Cellulose acetate/multiwalled carbon nanotube nanocomposites with improved mechanical, thermal, and electrical properties , 2010 .

[7]  P. Pötschke,et al.  Influence of twin-screw extrusion conditions on the dispersion of multi-walled carbon nanotubes in a poly(lactic acid) matrix , 2008 .

[8]  O. Kwon,et al.  Electrospinning of chitosan dissolved in concentrated acetic acid solution. , 2005, Biomaterials.

[9]  Ick Soo Kim,et al.  Recent Nanofiber Technologies , 2011 .

[10]  Werner J. Blau,et al.  High Performance Nanotube‐Reinforced Plastics: Understanding the Mechanism of Strength Increase , 2004 .

[11]  C. N. Lau,et al.  Superior thermal conductivity of single-layer graphene. , 2008, Nano letters.

[12]  N. Athanasopoulos,et al.  Sensing strain and damage in polyurethane-MWCNT nano-composite foams using electrical measurements , 2013 .

[13]  Younes Messaddeq,et al.  Thermal behavior of cellulose acetate produced from homogeneous acetylation of bacterial cellulose , 2008 .

[14]  R. Ruoff,et al.  Graphene-based polymer nanocomposites , 2011 .

[15]  J. Ferraris,et al.  Continuous carbon nanotube composite fibers: properties, potential applications, and problemsElectronic supplementary information (ESI) available: frontispiece figure. See http://www.rsc.org/suppdata/jm/b3/b312092a/ , 2004 .

[16]  S. Ribeiro,et al.  Synthesis and characterization of cellulose acetate produced from recycled newspaper , 2008 .

[17]  M. Maugey,et al.  Raman Response of Carbon Nanotube/PVA Fibers under Strain , 2009 .

[18]  I. Kim,et al.  Fabrication and Fibroblast Attachment Property of Regenerated Silk Fibroin/Tetramethoxysilane Nanofibrous Biocomposites , 2012 .

[19]  Joselito M. Razal,et al.  Super-tough carbon-nanotube fibres , 2003, Nature.

[20]  Juming Yao,et al.  Electrospinning of Bombyx mori silk fibroin nanofiber mats reinforced by cellulose nanowhiskers , 2011 .

[21]  I. Kim,et al.  Effect of deacetylation on wicking behavior of co-electrospun cellulose acetate/polyvinyl alcohol nanofibers blend , 2012 .

[22]  Klaus Kern,et al.  Elastic properties of chemically derived single graphene sheets. , 2008, Nano letters.

[23]  Gareth R. Williams,et al.  Modified coaxial electrospinning for the preparation of high-quality ketoprofen-loaded cellulose acetate nanofibers. , 2012, Carbohydrate polymers.

[24]  David G Simpson,et al.  Electrospinning of collagen nanofibers. , 2002, Biomacromolecules.

[25]  Y. Li,et al.  Zero-order drug release cellulose acetate nanofibers prepared using coaxial electrospinning , 2013, Cellulose.

[26]  Maya Kiskinova,et al.  Graphene oxide windows for in situ environmental cell photoelectron spectroscopy. , 2011, Nature nanotechnology.

[27]  W. Cai,et al.  Crystallinity of biodegradable polymers reinforced with functionalized carbon nanotubes , 2011 .

[28]  I. Kim,et al.  Effects of pH on electrospun PVA/acid-treated MWNT composite nanofibers , 2012 .

[29]  J. L. Willett,et al.  Solvent-free process to esterify polysaccharides. , 2005, Biomacromolecules.

[30]  P. Degée,et al.  Biodegradation of poly(epsilon-caprolactone)/starch blends and composites in composting and culture environments: the effect of compatibilization on the inherent biodegradability of the host polymer. , 2003, Carbohydrate research.

[31]  Zhong-Zhen Yu,et al.  Superhydrophobic to Superhydrophilic Wetting Control in Graphene Films , 2010, Advanced materials.

[32]  R. K. Seth,et al.  Effect of dispersion conditions on the mechanical properties of multi-walled carbon nanotubes based epoxy resin composites , 2011 .

[33]  J. Kysar,et al.  Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene , 2008, Science.

[34]  J. Sassi,et al.  Ultrastructural aspects of the acetylation of cellulose , 1995 .

[35]  M. Márquez,et al.  Structural studies of electrospun cellulose nanofibers , 2006 .

[36]  Synergistic toughening of composite fibres by self-alignment of reduced graphene oxide and carbon nanotubes , 2012, Nature communications.

[37]  F. Simon,et al.  A study of the effect of acetylation and propionylation surface treatments on natural fibres , 2005 .

[38]  Dajun Chen,et al.  Enhanced Mechanical Properties of Graphene-Based Poly(vinyl alcohol) Composites , 2010 .

[39]  F. Sharif,et al.  Enhancement of dispersion and bonding of graphene-polymer through wet transfer of functionalized graphene oxide , 2012 .

[40]  Tetsuo Asakura,et al.  Preparation of non-woven nanofibers of Bombyx mori silk, Samia cynthia ricini silk and recombinant hybrid silk with electrospinning method , 2003 .