Effective Noncovalent Functionalization of Poly(ethylene glycol) to Reduced Graphene Oxide Nanosheets through γ-Radiolysis for Enhanced Lubrication

2016 ◽  
Vol 120 (4) ◽  
pp. 2139-2148 ◽  
Author(s):  
Bhavana Gupta ◽  
Niranjan Kumar ◽  
Kalpataru Panda ◽  
Ambrose A. Melvin ◽  
Shailesh Joshi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Ethylene Glycol ◽  
Reduced Graphene Oxide ◽  
Graphene Oxide Nanosheets ◽  
Poly Ethylene Glycol ◽  
Reduced Graphene ◽  
Noncovalent Functionalization ◽  
Poly Ethylene

scholarly journals Chemically Reduced Graphene Oxide-Reinforced Poly(Lactic Acid)/Poly(Ethylene Glycol) Nanocomposites: Preparation, Characterization, and Applications in Electromagnetic Interference Shielding

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 661 ◽  
Author(s):  
Ahmad Fahad Ahmad ◽  
Sidek Ab Aziz ◽  
Zulkifly Abbas ◽  
Suzan Jabbar Obaiys ◽  
Khamirul Amin Matori ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lactic Acid ◽  
Ethylene Glycol ◽  
Reduced Graphene Oxide ◽  
Electromagnetic Interference ◽  
Poly Lactic Acid ◽  
Electromagnetic Interference Shielding ◽  
Poly Ethylene Glycol ◽  
Reduced Graphene ◽  
Poly Ethylene

In this study, a nanocomposite of reduced graphene oxide (RGO) nanofiller-reinforcement poly(lactic acid) (PLA)/poly(ethylene glycol) (PEG) matrix was prepared via the melt blending method. The flexibility of PLA was improved by blending the polymer with a PEG plasticizer as a second polymer. To enhance the electromagnetic interference shielding properties of the nanocomposite, different RGO wt % were combined with the PLA/PEG blend. Using Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM) and X-ray diffraction, the structural, microstructure, and morphological properties of the polymer and the RGO/PLA/PEG nanocomposites were examined. These studies showed that the RGO addition did not considerably affect the crystallinity of the resulting nanomaterials. Thermal analysis (TGA) reveals that the addition of RGO highly improved the thermal stability of PLA/PEG nanocomposites. The dielectric properties and electromagnetic interference shielding effectiveness of the synthesized nanocomposites were calculated and showed a higher SE total value than the target value (20 dB). On the other hand, the results showed an increased power loss by increasing the frequency and conversely decreased with an increased percentage of filler.

Hybrid two-dimensional nickel oxide-reduced graphene oxide nanosheets for supercapacitor electrodes

2021 ◽  
Vol 164 ◽  
pp. 105979
Author(s):  
Xin Gao ◽  
Hengwei Zhang ◽  
Erjun Guo ◽  
Fei Yao ◽  
Zengze Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Nickel Oxide ◽  
Reduced Graphene Oxide ◽  
Two Dimensional ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene

Polyaniline-Reduced Graphene Oxide Nanosheets for Room Temperature NH3 Detection

2021 ◽  
Author(s):  
Junyu Chang ◽  
Xiaobo Zhang ◽  
Zhenming Wang ◽  
Chunsheng Li ◽  
Qi Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Room Temperature ◽  
Graphene Oxide Nanosheets ◽  
Reduced Graphene

scholarly journals Evolution of large-area reduced graphene oxide nanosheets from carbon dots via thermal treatment

Carbon Trends ◽  
2021 ◽  
pp. 100074
Author(s):  
Lerato L Mokoloko ◽  
Boitumelo J Matsoso ◽  
Roy P. Forbes ◽  
Dean H. Barrett ◽  
Beatriz D. Moreno ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thermal Treatment ◽  
Reduced Graphene Oxide ◽  
Carbon Dots ◽  
Graphene Oxide Nanosheets ◽  
Large Area ◽  
Reduced Graphene

Stable Reduced Graphene Oxide Suspension Modified by PAMAM

2013 ◽  
Vol 341-342 ◽  
pp. 213-216
Author(s):  
Yong Qiang He ◽  
Fei Wu ◽  
Di Wu ◽  
Yong Li Zhang ◽  
Jian Ping Gao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Aqueous Suspension ◽  
Pamam Dendrimers ◽  
Graphene Oxide Nanosheets ◽  
Amino Terminal ◽  
Reduced Graphene

Poly (amidoanime) (PAMAM) dendrimers contain numerous amino-terminal groups and are highly hydrophilic. These terminal groups make PAMAM molecules adsorbed onto graphene oxide (GO) nanosheets through electrostatic action with oxygen containing groups on graphene oxide nanosheets. The PAMAM molecules react with GO, and form stable aqueous suspension of modified reduced graphene oxide (RGO).

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