Preparation of flexible reduced graphene oxide/poly(vinyl alcohol) film with superior microwave absorption properties

Abstract

Large-area reduced graphene oxide (rGO)/poly(vinyl alcohol) (PVA) film with excellent microwave absorption property has been prepared by a simple solution processing method. Excellent interfacial interaction between GO and PVA has been realized due to the molecule-level dispersion.Characterizations of X-ray diffraction, the Fourier transform infrared (FT-IR) spectra, X-ray photoelectron spectrum and Raman spectroscopy have confirmed the reduced process of GO in the composites. The rGO/PVA film exhibits excellent microwave absorbing properties in the range of 2-18 GHz. It is expected to be a promising candidate as one of microwave absorbing materials.

Compatibility-tuned distribution of nanoparticles in co-continuous rubber structures toward microwave absorption enhancement

“…The thermodynamic analysis also further coincide with the above result. As proven by Arjmand et al 27 and Wang et al, 28 the continuous "honeycomb-like" networks structure is in favor of the electron transportation and microwave attenuation.…”

In Vivo Investigation of Soft Tissue Response of Novel Silver/Poly(Vinyl Alcohol)/ Graphene and Silver/Poly(Vinyl Alcohol)/Chitosan/Graphene Hydrogels Aimed for Medical Applications – The First Experience

“…All these properties could provide reinforcement to the polymeric materials, so graphene is often included in a polymer matrix as a nano-fi ller. The overall mechanical properties of the hydrogel matrices were shown to be improved by even small amounts of graphene in PVA/Gr hydrogels [33][34][35]. There is also a recent interest in the potential antibacterial activity of graphene [36], which could be benefi cial for wound dressing or soft tissue implant applications, as these properties could provide additional bactericidal effects together with AgNPs, especially in the early phases of application to prevent biofi lm formation.…”

Spathodea campanulata bud fluid reinforced mechanical, hydrophilicity and degradation studies of poly (vinyl alcohol) matrix

“…shows the X-ray diffractograms of the blank PVA and PSC composite films. The characteristic diffraction peaks of neat PVA occurred at 2θ = 19.6° and 40.7° which is attributed to the semicrystalline nature of PVA [9,[45][46][47]. The small hump at 40° was also characteristic for PVA [48].…”