Effect of oxidation degrees of graphene oxide on the structure and properties of poly (vinyl alcohol) composite films

Liu, Di; Bian, Qibo; Li, Yan; Wang, Yaru; Xiang, Aimin; Tian, Huafeng

doi:10.1016/j.compscitech.2016.04.004

Cited by 114 publications

(48 citation statements)

References 31 publications

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“…For instance, Li et al fabricated polyimide (PI)/GO membrane with different oxygen‐containing functional groups on GO nanosheet, and found that the CO 2 /N 2 permeation selectivity of the membrane depended significantly on the oxidation degree of GO. Liu et al reported that the tensile strength and the barrier properties of poly vinyl alcohol (PVA)/GO composite film improved with the increase of oxidation degree of GO. However, to the best of our knowledge, there are rare reports concerning the impacts of GO oxidation degree on the properties of rubber nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Impact of various oxidation degrees of graphene oxide on the performance of styrene–butadiene rubber nanocomposites

Yang

Yin

Zhang

et al. 2017

Polymer Engineering & Sci

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In this work, graphene oxide (GO) with various oxidation degrees were synthesized by adjusting the dosage of oxidation agent based on a modified Hummers' method, and were then used for the fabrication of the styrene–butadiene rubber (SBR)/GO nanocomposites through latex coagulation method, followed by a high‐temperature cure process. The vulcanization characteristics, thermal stability, mechanical properties, thermal conductivity as well as solvent resistance of SBR/GO nanocomposites were investigated. The results indicated that various surface structures of GO due to oxidation degrees may lead to different dispersion states of GO in the rubber matrix, and thus greatly influenced the cure rate, mechanical properties as well as thermal conductivity of SBR/GO nanocomposites. The optimal (moderate) oxidation degree of GO was achieved at the oxidation agent (KMnO4)/graphite weight ratio 9/5, for which case the tensile strength, tear strength, and thermal conductivity of SBR/GO nanocomposites increased by 271.3%, 112.3%, and 28.6%, respectively, compared with those of neat SBR. In addition, the mentioned nanocomposites also showed the best solvent resistance in toluene. POLYM. ENG. SCI., 58:1409–1418, 2018. © 2017 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Impact of various oxidation degrees of graphene oxide on the performance of styrene–butadiene rubber nanocomposites

Yang

Yin

Zhang

et al. 2017

Polymer Engineering & Sci

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“…For the ACS films, the peak at 3271 cm −1 was attributed to both intermolecular and intramolecular hydrogen bonding among OH groups in CMC and SR . Compared with CMC and SR, the peak corresponding to OH groups shifted to the lower wavenumbers, suggesting the formation of extensive hydrogen bonds and a strong interaction among CMC and SR . Meanwhile, the band in the 1540 to 1723 cm −1 was broadened with increasing of SR due to the interaction among CMC and SR.…”

Section: Resultsmentioning

confidence: 95%

In situ synthesis and properties of Ag NPs/carboxymethyl cellulose/starch composite films for antibacterial application

Chen

Fang

et al. 2019

Polymer Composites

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Carboxymethyl cellulose (CMC) film, one of the biobased materials, exhibited poor mechanical properties. To use CMC film in antibacterial packaging, it was necessary to overcome this drawback and introduce antibacterial nanoparticles. In this article, using CMC and starch (SR) as the reductant and stabilizer, Ag nanoparticles (Ag NPs)/CMC/SR composite (ACS) films were prepared by in situ reduction method. The obtained Ag NPs were uniformly distributed in the ACS films and its diameter was in the range of 8 to 16 nm. The mechanical properties of ACS films were improved by adding SR into CMC. The ACS films exhibited higher tensile strength and lower elongation at break than that of CMC film. When the amount of SR was 4 g, the tensile strength of the ACS film reached the maximum of 9.8 MPa and its elongation at break was 63%. In addition, the ACS films showed an obvious antibacterial activity against gram‐positive bacteria Staphylococcus aureus and gram‐negative bacteria Escherichia coli via disc diffusion method. The inhibitory effect of the ACS film increased significantly as the increasing of the concentration of AgNO3 solution. Therefore, as‐prepared ACS films had potential applications in antimicrobial packaging.

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“…The authors stated that an electrostatic interaction occurred between the polycations of chitosan and the negative charges on the surface of GO in addition to hydrogen bonding. This [35] ESM by electrospinning N/A Tensile strength increase by 42 times with 0.02 wt% GO 0.1 wt%GO/PCL [25] ESM by electrospinning N/A 53% increase in tensile strength 0.3 wt%GO/PCL [36] ESM by electrospinning N/A Increased tensile strength, modulus and energy at break and bioactivity.…”

Section: Natural Polymersmentioning

confidence: 99%

“…Ultimately, the oxidation degree of GO also effects the properties of GO nanocomposites. Liu et al [35] added 1 wt% GO in PVA with different oxidation degrees by varying the KMnO 4 oxidant content. Both the tensile strength and elongation at break improved with an increase in the oxidation degree of GO.…”

Section: Pva Filmsmentioning

confidence: 99%

“…Both the tensile strength and elongation at break improved with an increase in the oxidation degree of GO. [35] Kashyap et al [132] used hydrazine in order to RGO. It was stated that the decrease in the elastic modulus of the 0.3 wt% GO/PVA nanocomposites was due to effect of hydrazine on the polymer matrix, which was offset by an equivalent increase in the modulus due to RGO fillers.…”

Section: Pva Filmsmentioning

confidence: 99%

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Graphene Oxide/Polymer‐Based Biomaterials

2017

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Since its discovery in 2004, derivatives of graphene have been developed and heavily investigated in the field of tissue engineering. Among the most extensively studied forms of graphene, graphene oxide (GO), and GO/ polymer-based nanocomposites have attracted great attention in various forms such as films, 3D porous scaffolds, electrospun mats, hydrogels, and nacre-like structures. In this review, the most actively investigated GO/ polymer nanocomposites are presented and discussed, these nanocomposites are based on chitosan, cellulose, starch, alginate, gellan gum, poly(vinyl alcohol) (PVA), poly(acrylamide), poly(e-caprolactone) (PCL), poly(lactic acid) (PLLA), poly(lactide-co-glycolide) (PLGA), gelatin, collagen, and silk fibroin (SF). The biological and mechanical performance of such nanocomposites are comprehensively scrutinized and ongoing research questions are addressed. The analysis of the literature reveals overall the great potential of GO/ polymer nanocomposites in tissue engineering strategies and indicates also a series of challenges requiring further research efforts.

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Effect of oxidation degrees of graphene oxide on the structure and properties of poly (vinyl alcohol) composite films

Cited by 114 publications

References 31 publications

Impact of various oxidation degrees of graphene oxide on the performance of styrene–butadiene rubber nanocomposites

Impact of various oxidation degrees of graphene oxide on the performance of styrene–butadiene rubber nanocomposites

In situ synthesis and properties of Ag NPs/carboxymethyl cellulose/starch composite films for antibacterial application

Graphene Oxide/Polymer‐Based Biomaterials

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