scholarly journals Enhancing the mechanical and tribological properties of epoxy composites via incorporation of reactive bio-based epoxy functionalized graphene oxide

RSC Advances ◽  
2020 ◽  
Vol 10 (66) ◽  
pp. 40148-40156
Author(s):  
Hao Wu ◽  
Chengbao Liu ◽  
Li Cheng ◽  
Yue Yu ◽  
Haichao Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Tribological Properties ◽  
Epoxy Composites ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites ◽  
Functionalized Graphene Oxide ◽  
Mechanical And Tribological Properties ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Superior mechanical and tribological properties of epoxy nanocomposites were obtained by introducing novel reactive bio-based epoxy-modified graphene oxide nanomaterials.

scholarly journals Long-term stably dispersed functionalized graphene oxide as an oil additive

RSC Advances ◽  
2019 ◽  
Vol 9 (67) ◽  
pp. 39230-39241
Author(s):  
Tianjiao Bao ◽  
Zhiyong Wang ◽  
Yan Zhao ◽  
Yan Wang ◽  
Xiaosu Yi
Keyword(s):  
Graphene Oxide ◽  
Thermal Properties ◽  
Tribological Properties ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Modified Graphene Oxide ◽  
Modified Graphene

T154 modified graphene oxide as an oil additive exhibited excellent tribological properties, long-term stable dispersity and high thermal properties.

Conjugated polymer covalently modified graphene oxide quantum dots for ternary electronic memory devices

Nanoscale ◽  
2017 ◽  
Vol 9 (30) ◽  
pp. 10610-10618 ◽  
Author(s):  
Fei Fan ◽  
Bin Zhang ◽  
Yaming Cao ◽  
Xutong Yang ◽  
Junwei Gu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Memory Effect ◽  
Conjugated Polymer ◽  
Functionalized Graphene ◽  
Current Ratio ◽  
Functionalized Graphene Oxide ◽  
Modified Graphene Oxide ◽  
Graphene Oxide Quantum Dots ◽  
Modified Graphene

A novel arylamine-based polyazomethine covalently functionalized graphene oxide quantum dots (TPAPAM-GOQDs), which exhibited nonvolatile ternary memory effect with an OFF : ON-1 : ON-2 current ratio of 1 : 60 : 3000, was synthesized.

Covalently functionalized graphene oxide and quaternized polysulfone nanocomposite membranes for fuel cells

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 71305-71310 ◽  
Author(s):  
Jie Liu ◽  
Rong Qu ◽  
Pai Peng ◽  
Wan Liu ◽  
Dongzhi Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Functionalized Graphene ◽  
Nanocomposite Membranes ◽  
Functionalized Graphene Oxide ◽  
Alkaline Stability ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Anion-exchange membranes based on quaternized polysulfone and modified graphene oxide showed good alkaline stability.

In situ preparation of functionalized graphene oxide/epoxy nanocomposites with effective reinforcements

2011 ◽  
Vol 21 (35) ◽  
pp. 13290 ◽  
Author(s):  
Chenlu Bao ◽  
Yuqiang Guo ◽  
Lei Song ◽  
Yongchun Kan ◽  
Xiaodong Qian ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites ◽  
Functionalized Graphene Oxide ◽  
In Situ Preparation

scholarly journals Synthesis of Silane Functionalized Graphene Oxide and Its Application in Anti-Corrosion Waterborne Polyurethane Composite Coatings

Coatings ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 587 ◽  
Author(s):  
Chao Chen ◽  
Shicheng Wei ◽  
Bin Xiang ◽  
Bo Wang ◽  
Yujiang Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Corrosion Rate ◽  
Electrochemical Impedance ◽  
Composite Coatings ◽  
Condensation Reaction ◽  
Waterborne Polyurethane ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Polyurethane Composite ◽  
Modified Graphene Oxide

In this study, novel silane functionalized graphene oxide (PVSQ-GO) composite material is synthesized through the hydrolysis condensation reaction of vinyl triethoxysilane monomers occurred at the surface of graphene oxide. Results obtained from FTIR, Raman, X-ray photoelectronic spectroscopy (XPS), XRD and TGA measurements reveal that polyvinyl sesquisiloxane microspheres adhere to graphene oxide lamellae in the form of chemical bonds. Meanwhile, it is intuitive that abundant polyvinyl sesquisiloxane microspheres stick to the surface of graphene oxide and increase the thickness of the flake. Modified graphene oxide changes from hydrophilicity to hydrophobicity were owing to the existence of polyvinyl sesquisiloxane microspheres on the surface of graphene oxide (GO). PVSQ-GO composite exhibited good dispersion in eco-friendly waterborne polyurethane coating. Electrochemical impedance spectroscopy manifested that the anti-corrosion performance of waterborne polyurethane (WPU) coating embedded at 0.5 wt.% PVSQ-GO composite improved effectively. Tafel curves reveal that 0.5 wt.% PVSQ-GO/WPU coating specimen shows the lowest corrosion rate of 8.95 × 10−5 mm/year when compared with the other coating specimens. The good anti-corrosion abilities of PVSQ-GO composite coating can be interpreted as the good compatibility between PVSQ-GO composite and waterborne polyurethane, however, the intrinsic hydrophobicity of PVSQ-GO composite is beneficial to inhibit the permeation of corrosive medium and thus slows down the corrosion rate.

scholarly journals Novel Unsaturated Polyester Nanocomposites via Hybrid 3D POSS-Modified Graphene Oxide Reinforcement: Electro-Technical Application Perspective

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 260 ◽  
Author(s):  
Nidhin Divakaran ◽  
Manoj B. Kale ◽  
T. Senthil ◽  
Suhail Mubarak ◽  
Duraisami Dhamodharan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Unsaturated Polyester ◽  
Interactive Effect ◽  
Functionalized Graphene ◽  
Polyhedral Oligomeric Silsesquioxanes ◽  
Functionalized Graphene Oxide ◽  
Limiting Oxygen Index ◽  
Modified Graphene Oxide ◽  
Hybrid Framework

The latest trends in technologies has shifted the focus to developing innovative methods for comprehensive property enhancement of the polymer composites with facile and undemanding experimental techniques. This work reports an elementary technique to fabricate high-performance unsaturated polyester-based nanocomposites. It focuses on the interactive effect of polyhedral oligomeric silsesquioxanes (POSS)-functionalized graphene oxide (GO) within the unsaturated polymermatrix. The hybrid framework of POSS-functionalized graphene oxide has been configured via peptide bonding between the aminopropyl isobutyl POSS and graphene oxide. The synergistic effect of POSS and graphene oxide paved the way for a mechanism to inculcate a hybrid framework within the unsaturated polyester (UP) via in situ polymerization to develop UP/GO-POSS nanocomposites. The surface-appended POSS within the graphene oxide boosted its dispersion in the UP matrix, furnishing an enhancement in tensile strength of the UP/GO-POSS composites by 61.9%, thermal decomposition temperature (10% mass loss) by 69.8 °C and electrical conductivity by 108 S/m, in contrast to pure UP. In particular, the homogenous influence of the POSS-modified GO could be vindicated in the surging of the limiting oxygen index (%) in the as-prepared nanocomposites. The inclusive property amelioration vindicates the use of fabricated nanocomposites as high-performance nanomaterials in electrotechnical applications.

Octadecyl Amine Functionalized Graphene Oxide towards Hydrophobic Chemical Resistant Epoxy Nanocomposites

2018 ◽  
Vol 3 (25) ◽  
pp. 7200-7207 ◽  
Author(s):  
Seyyed Mojtaba Mousavi ◽  
Seyyed Alireza Hashemi ◽  
Mohammad Arjmand ◽  
Ali Mohammad Amani ◽  
Farbod Sharif ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Epoxy Nanocomposites ◽  
Functionalized Graphene Oxide ◽  
Amine Functionalized ◽  
Hydrophobic Chemical ◽  
Octadecyl Amine
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