A study on the effects of the addition of graphene oxide and multi-walled carbon nanotubes for surface modification on polyvinylidene fluoride membranes

The effect of the surface modification of carbon nanotubes on their dispersion in the epoxy matrix Functionalization of multi-walled carbon nanotubes (MWCNTs) has an effect on the dispersion of MWCNT in the epoxy matrix. Samples based on two kinds of epoxy resin and different weight percentage of MWCNTs (functionalized and non-functionalized) were prepared. Epoxy/carbon nanotubes composites were prepared by different mixing methods (ultrasounds and a combination of ultrasounds and mechanical mixing). CNTs modified with different functional groups were investigated. Surfactants were used to lower the surface tension of the liquid, which enabled easier spreading and reducing the interfacial tension. Solvents were also used to reduce the liquid viscosity. Some of them facilitate homogeneous dispersion of nanotubes in the resin. The properties of epoxy/nanotubes composites strongly depend on a uniform distribution of carbon nanotubes in the epoxy matrix. The type of epoxy resin, solvent, surfactant and mixing method for homogeneous dispersion of CNTs in the epoxy matrix was evaluated. The effect of CNTs functionalization type on their dispersion in the epoxy resins was evaluated on the basis of viscosity and microstructure studies.

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High Cycling Stability of the LiNi 0.8 Co 0.1 Mn 0.1 O 2 Cathode via Surface Modification with Polyimide/Multi‐Walled Carbon Nanotubes Composite Coating

Small ◽

10.1002/smll.202102981 ◽

2021 ◽

pp. 2102981

Author(s):

Guojun Zha ◽

Chuying Ouyang ◽

Shungao Yin ◽

Kaiqing Yao ◽

Seema Agarwal ◽

...

Keyword(s):

Carbon Nanotubes ◽

Surface Modification ◽

Composite Coating ◽

Cycling Stability ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Water-based polyurethane composite anticorrosive barrier coating via enhanced dispersion of functionalized graphene oxide in the presence of acidified multi-walled carbon nanotubes

Progress in Organic Coatings ◽

10.1016/j.porgcoat.2020.105734 ◽

2020 ◽

Vol 146 ◽

pp. 105734 ◽

Cited By ~ 1

Author(s):

Li-Chao Jing ◽

Tao Wang ◽

Wei-Wei Cao ◽

Jian-Gong Wen ◽

Hui Zhao ◽

...

Keyword(s):

Carbon Nanotubes ◽

Graphene Oxide ◽

Functionalized Graphene ◽

Functionalized Graphene Oxide ◽

Polyurethane Composite ◽

Barrier Coating ◽

Water Based ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes

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Effect of the ratio of graphene oxide(GO) and multi-walled carbon nanotubes(MWCNTs) on metal friction and wear during mixing

Polymer Testing ◽

10.1016/j.polymertesting.2021.107441 ◽

2021 ◽

pp. 107441

Author(s):

Deshang Han ◽

Kongshuo Wang ◽

Gang Yan ◽

Yi Pan ◽

Junxiu Xue ◽

...

Keyword(s):

Carbon Nanotubes ◽

Graphene Oxide ◽

Friction And Wear ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes ◽

Metal Friction

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Surface modification and application of multi-walled carbon nanotubes in fire-retardant coatings

Carbon ◽

10.1016/j.carbon.2009.12.015 ◽

2010 ◽

Vol 48 (5) ◽

pp. 1694-1695 ◽

Cited By ~ 2

Author(s):

Jun Qiu ◽

Shi-hong Zhang ◽

Guo-jian Wang ◽

Yi-lei Gong

Keyword(s):

Carbon Nanotubes ◽

Surface Modification ◽

Fire Retardant ◽

Multi Walled Carbon Nanotubes ◽

In Fire ◽

Walled Carbon Nanotubes

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Surface modification of multi-walled carbon nanotubes by O2 plasma

Applied Surface Science ◽

10.1016/j.apsusc.2007.05.028 ◽

2007 ◽

Vol 253 (22) ◽

pp. 8945-8951 ◽

Cited By ~ 109

Author(s):

Tao Xu ◽

Jinghui Yang ◽

Jiwei Liu ◽

Qiang Fu

Keyword(s):

Carbon Nanotubes ◽

Surface Modification ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes ◽

O2 Plasma

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Development of graphene oxide (GO)/multi-walled carbon nanotubes (MWCNTs) nanocomposite conductive membranes for electrically enhanced fouling mitigation

Journal of Membrane Science ◽

10.1016/j.memsci.2018.02.001 ◽

2018 ◽

Vol 552 ◽

pp. 189-201 ◽

Cited By ~ 28

Author(s):

K.C. Ho ◽

Y.H. Teow ◽

A.W. Mohammad ◽

W.L. Ang ◽

P.H. Lee

Keyword(s):

Carbon Nanotubes ◽

Graphene Oxide ◽

Fouling Mitigation ◽

Conductive Membranes ◽

Multi Walled Carbon Nanotubes ◽

Electrically Enhanced ◽

Walled Carbon Nanotubes

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Development of a Polymeric Carbon Nanocomposite Hollow-Fiber Membrane for Wastewater Treatment

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19208 ◽

2021 ◽

Vol 21 (7) ◽

pp. 3711-3715

Author(s):

Jeongdong Choi ◽

Eun-Sik Kim

Keyword(s):

Carbon Nanotubes ◽

Graphene Oxide ◽

Hollow Fiber ◽

Hollow Fiber Membranes ◽

Permeate Flux ◽

Fiber Membranes ◽

Multi Walled Carbon Nanotubes ◽

Walled Carbon Nanotubes ◽

Polymeric Carbon ◽

Carbon Nanocomposite

This study investigated experimental parameters to fabricate polymeric carbon nanocomposite hollow-fiber membranes with graphene oxide and multi-walled carbon nanotubes. This case was different from that of flat-sheet type membranes in that the characteristics of the hollow-fiber type membranes were affected by the structure of the spinneret, the flow rate of the injected polymer and draw solution, and the mixing ratio. The membranes were characterized in terms of mechanical strength, porosity, hydrophilicity, and permeate flux using different solutions. The results reveal a mechanical strength of the carbon nanocomposite hollow-fiber membranes that is about 47.8% higher than that of hollow-fiber membranes without carbon nanomaterials. The porosity and surface hydrophilicity changed to produce more applicable membranes for water and wastewater treatment. As for the permeate flux, the nanocomposite membrane with graphene oxide showed a higher flux compared to the multi-walled carbon nanotubes membrane, which could be influenced by structural effects of the carbon materials.

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