Journal ArticleDOI
Molecular-Level Dispersion of Graphene into Poly(vinyl alcohol) and Effective Reinforcement of their Nanocomposites
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TLDR
In this paper, the preparation of polyvinyl alcohol (PVA) nanocomposites with graphene oxide (GO) using a simple water solution processing method is reported, and efficient load transfer is found between the nanofiller graphene and matrix PVA and the mechanical properties of the graphene-based nanocompositionite with molecule-level dispersion are significantly improved.Abstract:
Despite great recent progress with carbon nanotubes and other nanoscale fillers, the development of strong, durable, and cost-efficient multifunctional nanocomposite materials has yet to be achieved. The challenges are to achieve molecule-level dispersion and maximum interfacial interaction between the nanofiller and the matrix at low loading. Here, the preparation of poly(vinyl alcohol) (PVA) nanocomposites with graphene oxide (GO) using a simple water solution processing method is reported. Efficient load transfer is found between the nanofiller graphene and matrix PVA and the mechanical properties of the graphene-based nanocomposite with molecule-level dispersion are significantly improved. A 76% increase in tensile strength and a 62% improvement of Young's modulus are achieved by addition of only 0.7 wt% of GO. The experimentally determined Young's modulus is in excellent agreement with theoretical simulation.read more
Citations
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Investigation of thermomechanical properties of UHMWPE/graphene oxide nanocomposites prepared by in situ Ziegler–Natta polymerization
TL;DR: In this article, the properties of the nanocomposites were studied, and the results showed that the Young (tensile) modulus and tensile strength were significantly increased by increasing the filler content, which should be due to the high aspect ratio of GO plates and their uniform dispersion in the UHMWPE matrix.
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Interfacial Polarization and Dual Charge Transfer Induced High Permittivity of Carbon Dots-Based Composite as Humidity-Resistant Tribomaterial for Efficient Biomechanical Energy Harvesting
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Small Multiamine Molecule Enabled Fire-Retardant Polymeric Materials with Enhanced Strength, Toughness, and Self-Healing Properties
Lei Liu,Meng Hui Zhu,Zhewen Ma,Xiaodong Xu,Jinfeng Dai,Youming Yu,Seyed Mohsen Seraji,Hao Wang,Pingan Song +8 more
TL;DR: Inspired by the nanoconfinement effect that governs the unique mechanical properties of spider silk, the authors rationally designed a multifunctional small molecule, HCPA, that can serve as a fire retardant and hydrogen-bond crosslinker for poly(vinyl alcohol) (PVA).
Journal ArticleDOI
Trends in graphene reinforced polyamide nanocomposite for functional application: a review
TL;DR: In this article, a review outlines significant aspects and vital progression from polyamide -to polyamide/graphene nanocomposite -to technical application, and highlights the importance of polyamide as an important class of engineering materials.
Journal ArticleDOI
Enhanced mechanical properties of poly(vinyl alcohol) nanocomposites with glucose-reduced graphene oxide
TL;DR: In this article, a polyvinyl alcohol (PVA) nanocomposite films with enhanced mechanical properties were prepared by solution blending of glucose-reduced graphene oxide (RGO) with aqueous solution of PVA.
References
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Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
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Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
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Journal ArticleDOI
Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
Sasha Stankovich,Dmitriy A. Dikin,Richard D. Piner,Kevin A. Kohlhaas,Alfred Kleinhammes,Yuanyuan Jia,Yue Wu,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: In this paper, a colloidal suspension of exfoliated graphene oxide sheets in water with hydrazine hydrate results in their aggregation and subsequent formation of a high surface area carbon material which consists of thin graphene-based sheets.
Journal ArticleDOI
Graphene-based composite materials
Sasha Stankovich,Dmitriy A. Dikin,Geoffrey Dommett,K. Kohlhaas,Eric Zimney,Eric A. Stach,Richard D. Piner,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: The bottom-up chemical approach of tuning the graphene sheet properties provides a path to a broad new class of graphene-based materials and their use in a variety of applications.
Journal ArticleDOI
Processable aqueous dispersions of graphene nanosheets
TL;DR: It is reported that chemically converted graphene sheets obtained from graphite can readily form stable aqueous colloids through electrostatic stabilization, making it possible to process graphene materials using low-cost solution processing techniques, opening up enormous opportunities to use this unique carbon nanostructure for many technological applications.