Fluorination of carbon blacks: An X-ray photoelectron spectroscopy study: I. A literature review of XPS studies of fluorinated carbons. XPS investigation of some reference compounds

Nanse, G.; Papirer, E.; Fioux, Philippe; Moguet, F.; Tressaud, A.

doi:10.1016/s0008-6223(96)00095-4

Cited by 298 publications

(261 citation statements)

References 29 publications

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“…Therefore, prior to the functionalization procedures the bres were cleaned to remove sizing agent and any impurities present on the surface. Briey, the bres were washed with acetone in an ultrasonic bath twice for 20 min at 40 C, rinsed with methanol and water and dried in a vacuum oven (ADP 200, Yamato Scientic Co., Ltd, Tokyo, Japan) at 150 C for 3 h. Before each experiments, these bres were additionally subjected to ultrasonic washing in acetone 5 times for 10 min. The removal of the sizing agent was conrmed by TGA measurement, XPS analysis and AFM measurement (ESI Material, Fig.…”

Section: Methodsmentioning

confidence: 99%

Carbon fibre reinforced cellulose-based polymers: intensifying interfacial adhesion between the fibre and the matrix

et al. 2018

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Interfacial interactions governing the interfacial adhesion between cellulose propionate and carbon fibre surface are placed under scrutiny to pave the way towards the development of green cellulose-based carbon fibre reinforced polymers. A range of molecular entities are deposited on the surface by initially grafting aromatic structures with appropriate functions via diazonium species followed by further derivatization of these entities. Cellulose propionate was also bound covalently to the surface via a tosylated derivative invoking its facile nucleophilic displacement reaction with surface-grafted amino functions. Significant increase in interfacial shear strength was obtained for the cellulose propionategrafted carbon fibre composite as well as for the 4-(aminomethyl)benzene-functionalized sample, in the latter case possible hydrogen bonding took place with the cellulose propionate matrix. Furthermore, the positive effect of a highly lipophilic and yet compact -CF 3 substituent was also noted. In order to let the grafted structure efficiently penetrate into the matrix, steric factors, lipophilicity and potential secondary interactions should be considered. It needs to be pointed out that we provide the first synthetic strategy to covalently bind cellulose derivatives to a largely graphitic surface and as such, it has relevance to carbonaceous materials being applied in cellulose-based innovative materials in the future.

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Section: Methodsmentioning

confidence: 99%

Carbon fibre reinforced cellulose-based polymers: intensifying interfacial adhesion between the fibre and the matrix

et al. 2018

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“…Then, two new C1 peaks appear at around 289 and 291 eV binding energy after the growth of hydrophobic floss. These two high binding energy are the characteristics of carbon atoms that have double bonds or bonds with halogen elements [44,45]. Therefore, they can be assigned to CF2 and CF3 in the perfluoro molecule, respectively.…”

Section: Growth Of Hydrophobic Flossmentioning

confidence: 99%

Metal–Organic Framework-Functionalized Alumina Membranes for Vacuum Membrane Distillation

Zuo

Chung

2016

Water

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Nature-mimetic hydrophobic membranes with high wetting resistance have been designed for seawater desalination via vacuum membrane distillation (VMD) in this study. This is achieved through molecular engineering of metal-organic framework (MOF)-functionalized alumina surfaces. A two-step synthetic strategy was invented to design the hydrophobic membranes: (1) to intergrow MOF crystals on the alumina tube substrate and (2) to introduce perfluoro molecules onto the MOF functionalized membrane surface. With the first step, the surface morphology, especially the hierarchical roughness, can be controlled by tuning the MOF crystal structure. After the second step, the perfluoro molecules function as an ultrathin layer of hydrophobic floss, which lowers the surface energy. Therefore, the resultant membranes do not only possess the intrinsic advantages of alumina supports such as high stability and high water permeability, but also have a hydrophobic surface formed by MOF functionalization. The membrane prepared under an optimum condition achieved a good VMD flux of 32.3 L/m 2 -h at 60 • C. This study may open up a totally new approach for design of next-generation high performance membrane distillation membranes for seawater desalination.

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“…Moreover, curve fitting of the CF species is not easy to perform due to the presence of many possible CF n and C*-CF n entities. In addition, there are large discrepancies in literature in binding energies of fluorine-containing carbon groups [37][38][39][40]. Taking into account the above discussion, curve resolution of the PP samples will not be performed in this paper.…”

Section: Xps Analysismentioning

confidence: 99%

Increasing the Hydrophobicity of a PP Film Using a Helium/CF4 DBD Treatment at Atmospheric Pressure

Geyter

Morent

Gengembre

et al. 2008

Plasma Chem Plasma Process

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Plasma surface modification is widely used to tailor the surface properties of polymeric materials. Most treatments are performed using low pressure plasma systems, but recently, atmospheric dielectric barrier discharges (DBDs) have appeared as interesting alternatives. Therefore, in this paper, an atmospheric He + CF 4 DBD is used to increase the hydrophobicity of a polypropylene (PP) film. The surface characterization of the PP film is performed using contact angle measurements, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Results show that the hydrophobic properties of the polymer films are greatly enhanced after plasma treatment as evidenced by an increased contact angle. The incorporation of fluorine on the surface is significant (45 at%), demonstrating the ability of the used DBD set-up to generate fluorine-containing functional groups on the PP surface.

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Fluorination of carbon blacks: An X-ray photoelectron spectroscopy study: I. A literature review of XPS studies of fluorinated carbons. XPS investigation of some reference compounds

Cited by 298 publications

References 29 publications

Carbon fibre reinforced cellulose-based polymers: intensifying interfacial adhesion between the fibre and the matrix

Carbon fibre reinforced cellulose-based polymers: intensifying interfacial adhesion between the fibre and the matrix

Metal–Organic Framework-Functionalized Alumina Membranes for Vacuum Membrane Distillation

Increasing the Hydrophobicity of a PP Film Using a Helium/CF4 DBD Treatment at Atmospheric Pressure

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