Functionalized Multi-Walled Carbon Nanotubes and Micro Cellulose Reinforced Poly (Vinyl Alcohol) Hybrid Composite Films: Characterization and Reprocessing Performance

Year 2019, Volume: 22 Issue: 4, 935 - 945, 01.12.2019

Umit Huner

https://doi.org/10.2339/politeknik.443305

Abstract

The aim of this research paper was to investigate the
synergetic effect of micro cellulose and multi-walled carbon nanotubes (MWCNTs)
combination on physicochemical, mechanical and reprocessing performance of Poly
(Vinyl Alcohol) hybrid composite films. The hybrid composite films production
was carried out by the solution casting method, and the reprocessed films were
produced using defective (torn, faulty) films from primary production by the
same method. The combined use of MWCNTs and micro cellulose improved the
hydrophobicity approximately 85% in ratio. After the reprocessing, decreased
intensities of the peaks in the FTIR and Raman results confirmed the reduced
molecular interaction between all components of the hybrid composite film,
moreover, SEM and TEM revealed the negative defects such as agglomeration which
caused mechanical strength decrease. The tensile strength of PVA hybrid
composite films loaded cellulose/MWCNTs, reached 97 MPa strength value and
elongation at break decreased to 33% according to the neat PVA film. The study
results revealed that hybridization had a remarkable impact on improving
characteristic properties of composite films and reprocessing process might
have been compatible with solution casting method.

Keywords

Multi-walled carbon nanotubes, micro cellulose, PVA, hybrid, composite film

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