Fabrication of the Carbon Paper by Wet-Laying of Ozone-Treated Carbon Fibers with Hydrophilic Functional Groups

2013 ◽  
Vol 58 (1) ◽  
pp. 1069-1074 ◽  
Author(s):  
H. Kim ◽  
Y.-J. Lee ◽  
D.-C. Lee ◽  
G.-G. Park ◽  
Y. Yoo
Keyword(s):  
Functional Groups ◽  
Carbon Fibers ◽  
Carbon Paper ◽  
Treated Carbon

Fabrication of the carbon paper by wet-laying of ozone-treated carbon fibers with hydrophilic functional groups

Carbon ◽  
2013 ◽  
Vol 60 ◽  
pp. 429-436 ◽  
Author(s):  
Hyunuk Kim ◽  
Young-Ju Lee ◽  
Dong-Chul Lee ◽  
Gu-Gon Park ◽  
Yoonjong Yoo
Keyword(s):  
Functional Groups ◽  
Carbon Fibers ◽  
Carbon Paper ◽  
Treated Carbon

Surface and Composite Interface of Carbon Fiber Modified by Grafting of Diethanolamine

2009 ◽  
Vol 79-82 ◽  
pp. 497-500 ◽  
Author(s):  
Lei Chen ◽  
Zhi Wei Xu ◽  
Jia Lu Li ◽  
Xiao Qing Wu ◽  
Li Chen
Keyword(s):  
Shear Strength ◽  
Carbon Fiber ◽  
Functional Groups ◽  
Carbon Fibers ◽  
Irradiation Dose ◽  
Interlaminar Shear Strength ◽  
Epoxy Composites ◽  
Composite Interface ◽  
Γ Ray ◽  
Interlaminar Shear

The γ-ray co-irradiation method was employed to study the effect of diethanolamine modification on the surface of carbon fiber (CF) and the interfacial properties of CF/epoxy composites. Compared with the original carbon fiber, the surface of modified fibers became rougher. The amount of oxygen-containing functional groups was increased and the nitrogen element was detected after irradiation grafting. The interlaminar shear strength (ILSS) of composites reinforced by carbon fibers irradiated in diethanolamine solution was increased and then decreased as the irradiation dose increased. The ILSS of CF/epoxy composites was enhanced by 16.1% at 200kGy dose, compared with that of untreated one. The γ-ray irradiation grafting is expected to be a promising method for the industrialized modification of carbon fibers.

A Study of Surface Modification on Adsorption Behaviors of Nanoporous Carbon

2007 ◽  
Vol 119 ◽  
pp. 211-214 ◽  
Author(s):  
Byeoung Ku Kim ◽  
Young Seak Lee ◽  
Seung Kon Ryu ◽  
Byung Joo Kim ◽  
Soo Jin Park
Keyword(s):  
Nitric Acid ◽  
Functional Groups ◽  
Carbon Fibers ◽  
Acid Treatment ◽  
Surface Acidity ◽  
Activated Carbon Fibers ◽  
Adsorption Behaviors ◽  
Toxic Gases ◽  
Adsorption Amount ◽  
Polar Functional Groups

In this work, to introduce polar functional groups on carbon surfaces, activated carbon fibers (ACFs) were treated by nitric acid in order to enhance the adsorption capacity of propylamine which was one of toxic gases in cigarette smoke. It was found that the polar functional groups were predominantly increased up to 2.0 M of nitric acid, resulting in the increase of total surface acidity. It was found that the adsorption amount of propylamine of the modified ACFs was increased around 17% after a nitric acid treatment. From the XPS results, it was observed that propylamine was reacted with strong or weak polar (acidic) groups, such as COOH, -COO or OH existed on the ACF surfaces.

High performance lithium metal anode enabled by CF4 plasma treated carbon paper

Nanoscale ◽  
2021 ◽  
Author(s):  
Fei Shen ◽  
Fan Zhang ◽  
Yuting Yin ◽  
Sile Chen ◽  
Jie Gao ◽  
...  
Keyword(s):  
Energy Density ◽  
Dendritic Growth ◽  
High Performance ◽  
Carbon Paper ◽  
Lithium Metal ◽  
Metal Anode ◽  
Lithium Metal Anode ◽  
Treated Carbon ◽  
Metal Anodes

To substantially boost the energy density of secondary batteries, researches on Li metal anodes are booming to develop technologies on Li metal batteries. However, suffered from Li dendritic growth and...

Quantitative Measurement of Functional Groups on Nanocarbon Allotropes Surface by Boehm Titration

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Hernández-Ortiz ◽  
J. D. Lozano-López ◽  
S. M. Durón ◽  
M. Galván-Valencia ◽  
Y. Estevez-Martínez ◽  
...  
Keyword(s):  
Functional Groups ◽  
Concentration Ratio ◽  
Quantitative Measurement ◽  
Carboxyl Group ◽  
Multiwalled Carbon ◽  
Derivative Method ◽  
Order Of Magnitude ◽  
Treated Carbon ◽  
Second Derivative Method ◽  
Vulcan Carbon

Various nanocarbons (NCs) were used to study their surface groups under standardized Bohem titration, including: multiwalled carbon nanotube (CNT), graphene (G), Vulcan carbon (VC), and nanodiamond (ND). Endpoint-measured titration using second derivative method to quantify carboxylic, lactonic, and phenolic groups created on treated carbon surfaces shows a high precision comparable to other recent reports and with errors of 1 order of magnitude lower. The results exhibit major concentration of carboxyl group increased after the NCs were oxidized compared to the amount of other functional groups like phenols and lactonic groups. It is important highlight, the concentration ratio of carboxyl group with VC:VC-O was showed at 1:77, exhibited a major result regarding other NCs which exhibited ratios of 1:4.5, 1:1.4, and 1:2.5 for ND:ND-O, CNT:CNT-O, and G:G-O, respectively. It is concluded that VC is a NC that competes and excels in its capacity of oxidation with respect to the popular NCs as CNT, graphene (G), and ND.

scholarly journals A facile approach for grafting bi-functional groups terminated branched polyphosphazene on carbon fibers

2020 ◽  
Vol 14 (10) ◽  
pp. 962-969
Author(s):  
Z. J. He ◽  
J. H. Liu ◽  
S. H. Liu ◽  
X. Q. Zhang ◽  
C. H. Lei
Keyword(s):  
Functional Groups ◽  
Carbon Fibers

scholarly journals Valorization of Lignin as a Sustainable Component of Structural Materials and Composites: Advances from 2011 to 2019

2020 ◽  
Vol 12 (2) ◽  
pp. 734 ◽  
Author(s):  
Menisha S. Karunarathna ◽  
Rhett C. Smith
Keyword(s):  
Chemical Modification ◽  
Functional Groups ◽  
Carbon Fibers ◽  
Network Structure ◽  
Phenol Formaldehyde ◽  
Construction Materials ◽  
Structural Elements ◽  
Automotive Components ◽  
Future Developments ◽  
Technical Issues

Lignin is the most abundant aromatic biopolymer and is the sustainable feedstock most likely to supplant petroleum-derived aromatics and downstream products. Rich in functional groups, lignin is largely peerless in its potential for chemical modification towards attaining target properties. Lignin’s crosslinked network structure can be exploited in composites to endow them with remarkable strength, as exemplified in timber and other structural elements of plants. Yet lignin may also be depolymerized, modified, or blended with other polymers. This review focuses on substituting petrochemicals with lignin derivatives, with a particular focus on applications more significant in terms of potential commercialization volume, including polyurethane, phenol-formaldehyde resins, lignin-based carbon fibers, and emergent melt-processable waste-derived materials. This review will illuminate advances from the last eight years in the prospective utilization of such lignin-derived products in a range of application such as adhesives, plastics, automotive components, construction materials, and composites. Particular technical issues associated with lignin processing and emerging alternatives for future developments are discussed.

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