Journal ArticleDOI
Preparation of graphene/poly(vinyl alcohol) nanocomposites with enhanced mechanical properties and water resistance
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TLDR
In this article, a simple and practical approach to synthesize graphene-reinforced polyvinyl alcohol (PVA) composite films by incorporating graphene oxide and graphene into PVA aqueous solution was reported.Abstract:
The control and dispersal of graphene nanosheets in polymer hosts are challenges in the development of high-performance graphene-based nanocomposites due to the strong interlayer cohesive energy and surface inertia. Here we report a simple and practical approach to synthesize graphene-reinforced poly(vinyl alcohol) (PVA) composite films by incorporating graphene oxide and graphene into PVA aqueous solution. The resulting nanocomposites revealed increases of up to 212% in tensile strength and 34% in elongation at break with only 0.5 wt% graphene content. Water absorption measurements showed that the water absorption ratio of the graphene/PVA composites decreased from 105.2 to 48.8%, and the barrier properties were obviously improved. Contact angle measurements showed that the composites were hydrophobic (θ > 90°) in contrast to the highly hydrophilic (θ < 90°) pure PVA. Copyright © 2011 Society of Chemical Industryread more
Citations
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Graphene-based materials and their composites: A review on production, applications and product limitations
TL;DR: Graphene-based materials and their composites possess promising applications in wide range of fields such as, electronics, biomedical aids, membranes, flexible wearable sensors and actuators as mentioned in this paper.
Journal ArticleDOI
Removal of emerging contaminants from the environment by adsorption
A. Carmalin Sophia,Eder C. Lima +1 more
TL;DR: Adsorption is a promising method worldwide for EC removal since it is low initial cost for implementation, highly-efficient and has simple operating design.
Journal ArticleDOI
The Fabrication, Properties, and Uses of Graphene/Polymer Composites
Jinhong Du,Hui-Ming Cheng +1 more
TL;DR: Graphene is a potential nanofiller that can dramatically improve the properties of polymer-based composites at a very low loading as mentioned in this paper, which can improve tensile strength and elastic modulus, electrical and thermal conductivity.
Journal ArticleDOI
Properties and Applications of Polyvinyl Alcohol, Halloysite Nanotubes and Their Nanocomposites.
Tayser Sumer Gaaz,Abu Bakar Sulong,Majid Niaz Akhtar,Majid Niaz Akhtar,Abdul Amir H. Kadhum,Abu Bakar Mohamad,Ahmed A. Al-Amiery +6 more
TL;DR: This paper reviews individualized HNT addition along with crosslinking of PVA for various biomedical applications that have been previously reported in literature, thereby showing the attainability, modification of characteristics, and goals underlying the blending process with PVA.
Journal ArticleDOI
Graphene and graphene oxide and their uses in barrier polymers
TL;DR: A review of the state-of-the-art research on the use of graphene, GO, and rGO for barrier applications, including few-layered graphene or its derivatives in coated polymeric films and polymer nanocomposites consisting of chemically exfoliated GO and reduced graphene oxide (rGO) nanosheets, and their gas-barrier properties is presented in this article.
References
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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
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TL;DR: This review analyzes recent trends in graphene research and applications, and attempts to identify future directions in which the field is likely to develop.
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Superior Thermal Conductivity of Single-Layer Graphene
Alexander A. Balandin,Suchismita Ghosh,Wenzhong Bao,Irene Calizo,Desalegne Teweldebrhan,Feng Miao,Chun Ning Lau +6 more
TL;DR: The extremely high value of the thermal conductivity suggests that graphene can outperform carbon nanotubes in heat conduction and establishes graphene as an excellent material for thermal management.