Electrochemical surface functionalization of carbon fibers for chemical affinity improvement with epoxy resins

Kainourgios, Panayiotis; Kartsonakis, Ioannis A.; Dragatogiannis, Dimitrios A.; Koumoulos, Elias P.; Goulis, Panagiotis; Charitidis, Costas A.

doi:10.1016/j.apsusc.2017.04.214

Cited by 54 publications

(36 citation statements)

References 44 publications

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“…Acrylic acid (Acros Organics), methacrylic acid (Acros Organics), acrylonitrile (Acros Organics) and N-vinylpyrrolidone (Acros Organics) were double distilled under reduced pressure prior to use. The specifications of the obtained CFs and epoxy resin are reported in literature [1].…”

Section: Methodsmentioning

confidence: 99%

“…Briefly, both resin GY 257 and 2,2΄-Diaminodiethylamine were added slowly in acetone solvent, under vigorous stirring and the obtained mixture was left to cure at room temperature. The wt.% material concentration of the epoxy solution is reported in literature previous work [1].…”

Section: Surface Treatment and Composite Manufacturingmentioning

confidence: 99%

“…The electropolymerization solution was deoxygenated by bubbling nitrogen for 10 minutes prior to the electropolymerization process. The produced coated carbon fiber bundle was thoroughly rinsed with water and acetone to remove residues and was placed to dry into an oven [1]. The electrografting of each polymer onto the fiber surface resulted in the production of unidirectional (UD) composite.…”

Section: Surface Treatment and Composite Manufacturingmentioning

confidence: 99%

“…Carbon fiber composites exhibit enhanced mechanical performances, such as extremely high strength and modulus, good stiffness, and creep resistance etc. [1][2]. However, according to the literature [3], due to lack of fiber-matrix strong chemical bonding, the application of stress to the carbon fiber composite results in poor mechanical properties, e.g.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the integrity of CFRPs through nanomechanical mapping: the effect of CF surface modification

2018

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Abstract. The purpose of this study is to assess the effect of CF surface modification in enhancement of the wetting properties of carbon fibers in order to improve the adhesion force between the fiber and the polymer matrix; for this, the integrity of CFRPs through nanomechanical mapping was evaluated. The surface of commercial carbon fibers was functionalized through cyclic voltammetry in aqueous electrolyte solutions of H2SO4, in the presence of acrylic acid, methacrylic acid, acrylonitrile and Nvinylpyrrolidone monomers. The produced surface modified carbon fibers were embedded in epoxy resin. Elastic modulus nanoindentation mapping was performed in order for elastic modulus to be calculated, as a qualitative assessment of fibre -matrix interaction. For this, a grid protocol was set up for the integrity assessment of CFRPs through nanomechanical mapping.

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Section: Methodsmentioning

confidence: 99%

Section: Surface Treatment and Composite Manufacturingmentioning

confidence: 99%

Section: Surface Treatment and Composite Manufacturingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessing the integrity of CFRPs through nanomechanical mapping: the effect of CF surface modification

2018

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“…[3,4]. Although, lignin was on the scope of polymer scientists for years, its implementation into polymer science and engineering is often hindered by its structure, which is highly dependent on the extraction procedure and the type of plant selected [5,6]. On the other hand, nylon is widely used at a galore of everyday applications such as polymeric films, plastic bags and other products [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Lignin and CNTs on the properties of melt-spun polymeric fibers

et al. 2018

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Abstract. The quality of high density polyethylene (HDPE) -lignin spun fibers depends on the spinning method and the chemical modification of the raw material. On the other hand, nylon-type polymers are widely known for their simple experimental synthesis and use. The goal of this study was the fabrication of composites containing lignin, nylon and multi-walled carbon nanotubes (MWCNTs) based fibers with enhanced mechanical properties. Therefore, a nylon-type polymer was synthesized, using diethylenetriamine and sebacoyl chloride, and was conjugated with lignin as well as MWCNTs with the aim of determining the materials' compatibility, differences in chemical behavior as well as their ability to be melt spun and be further processed. The materials were compounded with HDPE and melt spun, producing fibers that were characterized in respect of their morphology, structural, chemical and elemental composition. Finally, the HDPE fibers were used for the production of one dimensional composites inside dumb bell type sacrificial templates with an epoxy resin solution. The composites, which contained fibers enriched with oxidized lignin and MWCNTs, presented higher elastic modulus and ultimate tensile strength than the rest of the composites. This is a novel attempt, presenting an innovation concerning durable fibers with low cost materials and procedures.

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Polypropylene composite hollow fiber ultrafiltration membranes with an acrylic hydrogel surface by in situ ultrasonic wave‐assisted polymerization for dye removal

Shao

Liang³

et al. 2018

J of Applied Polymer Sci

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In this study, polypropylene composite hollow fiber membrane with an acrylic hydrogel layer was fabricated successfully by in situ ultrasonic wave‐assisted polymerization. The ultrasonic irradiation can significantly improve the grafting efficiency of acrylic acid on the membrane surface. The modified membranes were characterized on the basis of physicochemical characteristics, permeation performance and antifouling property. The results revealed that the pure water flux of modified membranes was significantly increased when the graft density was lower than 0.82 mg cm−2, due to the improvement of hydrophilicity. Interestingly, the optimized membrane PPM1.49 could efficiently remove organic dyes from aqueous solution, showing retentions of 99.5 and 98.7% to Congo red and methylthionine chloride, respectively. Meanwhile, its flux recovery ratio was elevated from 68.0 to 92.0% using bovine serum albumin aqueous solution as a foulant compared with the pristine membrane. These promising results indicate that modified membranes developed in this study are potentially applicable for dye removal from wastewater. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47099.

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Electrochemical surface functionalization of carbon fibers for chemical affinity improvement with epoxy resins

Cited by 54 publications

References 44 publications

Assessing the integrity of CFRPs through nanomechanical mapping: the effect of CF surface modification

Assessing the integrity of CFRPs through nanomechanical mapping: the effect of CF surface modification

Effect of Lignin and CNTs on the properties of melt-spun polymeric fibers

Polypropylene composite hollow fiber ultrafiltration membranes with an acrylic hydrogel surface by in situ ultrasonic wave‐assisted polymerization for dye removal

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