Layer-by-layer grafting CNTs onto carbon fibers surface for enhancing the interfacial properties of epoxy resin composites

Zhao, Min; Lian, Meng; Ma, Lichun; Ma, Lina; Yang, Xiaobing; Huang, Yudong; Ryu, Jihye; Shankar, Akash; Li, Tingxi; Yan, Chao; Guo, Zhanhu

doi:10.1016/j.compscitech.2017.11.002

Cited by 335 publications

(131 citation statements)

References 47 publications

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“…In comparison with other biomaterials, PVA shows an excellent effects in biomedical application like to ECM. For example, epoxy materials due to existing of toxic low molecular weight can resulted in cell toxicity . Moreover, PVA has hydrophilic property and dissolve in water, but epoxy families are soluble in organic solvent .…”

Section: Introductionmentioning

confidence: 99%

Electrospun electroactive nanofibers of gelatin‐oligoaniline/Poly (vinyl alcohol) templates for architecting of cardiac tissue with on‐demand drug release

Shojaie

Rostamian

Samadi

et al. 2019

Polymers for Advanced Techs

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In this study, grafted gelatin with oligoaniline (GelOA) was synthesized and then mixed with Poly (vinyl alcohol) (PVA). Several scaffolds with different ratio of PVA/GelOA were electrospun to fabricate electroactive scaffolds. GelOA was characterized using Fourier‐transform infrared spectroscopy (FTIR); moreover, nanofiber properties were evaluated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscope (SEM) analyses. Nanofibers diameter was decreased with aniline oligomer increment form 300 to 150 nm because of the hydrophobic nature of the aniline oligomer. Aniline oligomer electroactivity was studied using cyclic voltammetry, which exhibited two redox peaks at 0.4 and 0.6. Moreover, aniline oligomer enhancement resulted in melting point increasing from 220°C to 230°C because of the crystallinity increment. To assess the biocompatibility of nanofibers, cell viability and cell adhesion were tracked using mesenchymal stem cell (MSCs). It was revealed that the presence of aniline oligomer leads to enhancing the conductivity, thermal properties and lowering the degradation rate and drug release. Among of different scaffolds, sample with high content of GelOA shows better behavior in physical and biological properties. Accumulative drug releases under applied electrical field at 40 minutes showed that the drug release for stimulated condition is about 33% more than the unapplied electrical field one.

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Section: Introductionmentioning

confidence: 99%

Electrospun electroactive nanofibers of gelatin‐oligoaniline/Poly (vinyl alcohol) templates for architecting of cardiac tissue with on‐demand drug release

Shojaie

Rostamian

Samadi

et al. 2019

Polymers for Advanced Techs

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“…After grafting, they found that ILSS and interfacial shear strength of fibers and matrix increased by 48.12% and 83.26%, respectively. Zhao et al bonded CNTs onto a CF surface via layer‐bilayer grafting; polarity, wettability, and roughness of the CFs were significantly increased after the CNTs modification. Wu et al reported on their experiments with an amino‐functionalized CNT‐containing sizing agent, which significantly improved interfacial bonding and impact toughness of CF ‐reinforced unsaturated polyester composites.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Interfacial Properties of Composites by Grafting Polyethylene Glycol and Polyvinyl Alcohol Onto a CF Surface

Zhan

et al. 2019

Polymer Engineering & Sci

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In this study, a carboxy esterification reaction was used to graft the hydrophilic polymers polyethylene glycol (PEG) and polyvinyl alcohol (PVA) onto the surface of carbon fibers (CFs). The properties of the grafted CFs were investigated by scanning electron microscopy (SEM), atomic force microscopy (AFM), X‐ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TG) and through the measurement of interlaminar shear strength (ILSS). SEM enabled the graft morphology on CF surfaces to be determined. In comparisons of grafted and non‐grafted CFs, AFM indicated that the roughness was significantly improved; XPS showed that the concentration of oxygen‐containing functional groups increased by 186.1%; TG showed that the grafting rate of CF‐grafted PEG (CF‐g‐PEG) was 0.5%, and that of CF‐grafted PVA (CF‐g‐PVA) was 2.0%; and the ILSS of CF‐g‐PEG and CF‐g‐PVA increased by 22.7% and 43.0%, respectively. We conclude that esterification grafting is an effective method for modifying the physicochemical properties of CFs and improving the interfacial adhesion of composites. POLYM. ENG. SCI., 59:1043–1050, 2019. © 2019 Society of Plastics Engineers

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“…Typically, the polymer matrix, reinforcement, and the adhesion between the matrix resin and the filler are the key factors controlling properties of composite materials . Moreover, the properties of the composites also count on the high packing density composites, depending on volume, particle shape and size, size distribution, characteristic of filler, and the layer of the polymer matrix between the particles should be as thin as possible, to maintain a good mechanical property for the applications . This highly filled characteristic can be accomplished by using a polymer matrix having a low melt viscosity that generally helps in filler mixing during the molding compound preparation …”

Section: Introductionmentioning

confidence: 99%

Friction and Mechanical Properties of Highly Filled Polybenzoxazine Composites: Nanosilica Particle Size and Surface Treatment

Mora

Jubsilp

Liawthanyarat

et al. 2018

Macro Chemistry & Physics

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Frictional and mechanical properties of highly filled polybenzoxazine [poly(BA‐a)] composites which are influenced by nanosilica contents, particle sizes, and surface treatments are investigated. The coefficient of friction and wear resistance, storage moduli, and microhardness of the nanosilica‐filled poly(BA‐a) composites systematically increase with an increase of nanosilica content, while those values of the nanocomposites are improved with decreasing particle sizes at the equivalent nanosilica content. The modulus can be predicted by the Kerner model with the maximum packing fraction, while the microhardness of the nanocomposites is in agreement with the Halpin–Tsai model. The nanocomposites fabricated with untreated nanosilica particles exhibit higher frictional and mechanical properties when compared with the surface‐treated nanocomposites at the equivalent particle sizes. The interfacial interactions via covalent bond formation between the nanosilica and the poly(BA‐a) are determinative factors for the nanocomposite properties. Highly filled nanosilica‐poly(BA‐a) composites can be employed in various applications where wear‐resistance plays an important role.

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Layer-by-layer grafting CNTs onto carbon fibers surface for enhancing the interfacial properties of epoxy resin composites

Cited by 335 publications

References 47 publications

Electrospun electroactive nanofibers of gelatin‐oligoaniline/Poly (vinyl alcohol) templates for architecting of cardiac tissue with on‐demand drug release

Electrospun electroactive nanofibers of gelatin‐oligoaniline/Poly (vinyl alcohol) templates for architecting of cardiac tissue with on‐demand drug release

Enhancing the Interfacial Properties of Composites by Grafting Polyethylene Glycol and Polyvinyl Alcohol Onto a CF Surface

Friction and Mechanical Properties of Highly Filled Polybenzoxazine Composites: Nanosilica Particle Size and Surface Treatment

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