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Preparation and enhanced mechanical properties of non-covalently-functionalized graphene oxide/cellulose acetate nanocomposites

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Pages (from-to)223-231
Number of pages9
JournalComposites Part B : Engineering
Volume90
DOIs
Publication statusPublished - 1 Apr 2016
Externally publishedYes
Publication typeA1 Journal article-refereed

Abstract

Sulfonated poly (ether-ether-ketone) (SPEEK) was selected as a surface modifying agent to prepare non-covalently functionalized reduced graphene oxide (NFrGO) followed by the development of NFrGO/cellulose acetate (CA) nanocomposite (NFrGO-CANC) through solution mixing. The formation of the nanocomposite was governed via the hydrogen bonding interactions among the -SO3H group of NFrGO and -OH/-C=0 groups of CA. NFrGO-CANC was characterized by field emission scanning electron microscopy, FT-IR, X-ray diffraction, thermogravimetric analysis, and differential scanning calorimetry analysis. The tensile strength of the NFrGO-CANC increased significantly with increasing NFrGO loading. The tensile strength and modulus of the NFrGO-CANC with 1.5 wt.% NFrGO were improved by similar to 102 and 143%, respectively, compared to those of pure CA. The onset degradation temperature and oxygen gas barrier properties of the NFrGO-CANC also were enhanced with increasing NFrGO loading up to 1.5 wt.% compared to those of pure CA film. (C) 2015 Elsevier Ltd. All rights reserved.

Keywords

  • Nano-structures, Polymer-matrix composites (PMCs), Mechanical properties, Surface treatments, IMPROVED GAS BARRIER, CELLULOSE-ACETATE, ELECTRICAL-CONDUCTIVITY, THIN-FILMS, OXIDE, PERFORMANCE, HYBRID, FIBERS, COMPOSITES, INTERFACE