Abstract
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 incorporated 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).
| Original language | English |
|---|---|
| Pages (from-to) | 554-563 |
| Number of pages | 10 |
| Journal | Express Polymer Letters |
| Volume | 7 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2013.06 |
Keywords
- Graphene
- Mechanical properties
- Molecular interactions
- Nanofiber
- Polymer composites
Quacquarelli Symonds(QS) Subject Topics
- Materials Science
- Engineering - Petroleum
- Engineering - Chemical
- Chemistry
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