Chemically and uniformly grafting carbon nanotubes onto carbon fibers by poly(amidoamine) for enhancing interfacial strength in carbon fiber composites

Influence of carbon nanotubes coatings onto carbon fiber by oxidative treatments combined with electrophoretic deposition on interfacial properties of carbon fiber composite

“…Recently, many grafting methods have been proposed such as chemical vapor deposition (CVD) [11][12][13], chemical grafting [14][15][16] and electrophoretic deposition (EPD) [17][18][19][20]. All methods reported successful attachment of CNTs on the fiber surface.…”

Synthesis and electrochemical applications of nitrogen-doped carbon nanomaterials

“…In a similar way, lysine was covalently attached onto the MWCNT side walls, resulting in the nanomaterials that show a high dispersibility in deionized water (10 mg/ml) [66]. The other materials used, including the alkylamines [98], octaamino-substituted erbium bisphthalocyanine [99], and the metal-based [79] ferrocene and melamine [68,82,100], n-propylamine and n-butylamine [67], poly-amido amine [63], ferrocene/acetonitrile [84], cationic polyelectrolyte poly(diallyldimethylammonium) chloride [64], dendrimer [65,101], increases the CNT's activity/properties on doping. Hydrazine hydrate and diethyltriamine were doped to increase the water dispersion ability of the CNT [102].…”

“…The latter technique can also be used to introduce the basic functionalities when applied in a nitrogen atmosphere. The carboxyl groups may then be acylated with thionyl chloride to make a basis for the various amine compounds [63] or to attach to the various proteins and DNA [64,65]. The other commonly used chemical reactions to attach the organic groups include the cyclo additions (e.g., Bingel, Diels Alder), electrophilic and nucleophilic additions, ozonolysis, halogenations, or radical reactions (oxidative and reductive) [66][67][68].…”

Improvement of interfacial properties of carbon fiber‐reinforced poly(phthalazinone ether ketone) composites by introducing carbon nanotube to the interphase

“…It has been studied that CNT/carbon fiber with a large surface area could lead to better contact with the matrix, thus forming more mechanical interlocking sites [18]. Preparation of the CNT/carbon fiber hybrid fiber has been explored with several methods such as chemical vapor deposition (CVD) [19][20][21], chemical grafting [22,23], and electrophoretic deposition (EPD) [24][25][26][27][28].Since the sizing process is a standard and commercially available method of fiber surface treatment, fabrication of CNT/carbon fiber by the way of sizing is facile and preferred in industry. Fabricating CNT/carbon fiber hybrid fiber had been achieved by sizing carbon fiber in our previous article [29], but the effect of CNT at the interphase on interfacial properties for CFRTP has not been studied.…”