| Titre : |
Preparation and characterization of reduced graphene oxide based natural rubber nanocomposites |
| Type de document : |
texte imprimé |
| Auteurs : |
F. Shahamatifard, Auteur ; Denis Rodrigue, Auteur ; K. Park, Auteur ; S. Frikha, Auteur ; Fred Mighri, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 492-502 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Analyse spectrale
Caoutchouc
Caractérisation
Elasticité
Graphite
Matériaux hybrides
Matériaux hybrides -- Propriétés mécaniques
Matériaux hybrides -- Propriétés thermiques
Oxyde de graphène
Réticulation (polymérisation)
Thermocinétique
Thermogravimétrie
Vulcanisation
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
This work describes the effect of reduced graphene oxide (RGO) addition in natural rubber (NR). Firstly, RGO was synthesized based on the improved Hummer's method then characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA) to confirm that the RGO surface contains hydroxyl, epoxy, and carboxyl functional groups to improve graphene interaction with the NR matrix. In a second step, the synthesized RGO was predispersed in NR latex using the co-coagulation technique then added at different amounts (0 to 2 parts per hundred rubber (phr)) to a basic NR formulation and compounded in an internal mixer. The results show that the crosslink density of the developed NR/RGO nanocomposites increased by 65 % for RGO concentration of 2.0 phr. For the same RGO concentration, a significant increase in tensile strength (53 %) and Young's modulus (31 %) were also observed. Finally, a significant improvement (26 %) of the thermal conductivity was obtained with the addition of only 0.5 phr of RGO. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Preparation of reduced graphene oxide - Pre-dispersion of reduced graphene oxide in natural rubber latex using the co-coagulation technique - Preparation of natural rubber-based nanocomposites
- CHARACTERIZATION : Mechanical properties and thermal behavior - Vulcanization and crosslink density - Fourier Transform infrared Spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS
- RESULTS AND DISCUSSION : Graphite and graphene oxide characterization - Curing and properties of the basic NR matrix and its modified NR/G and NR/RGO nanocomposites |
| DOI : |
https://doi.org/10.3139/217.3987 |
| En ligne : |
https://drive.google.com/file/d/1a0Ao7lnJdrys6Mvy-R_f1VteBFq2qXtV/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35071 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXV, N° 5 (11/2020) . - p. 492-502
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