Microwave-assisted treatment of MWCNTs with vitamin B 2 : Study on morphology, tensile and thermal behaviors of poly(vinyl alcohol) based nanocomposites

Abdolmaleki, Amir; Mallakpour, Shadpour; Azimi, Faezeh

doi:10.1016/j.eurpolymj.2016.12.034

Cited by 13 publications

(5 citation statements)

References 30 publications

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“…The surfactant not only hindered aggregation of nanowires, but also induced anisotropic growth of Ag nanowires. Various types of surfactants are also frequently used to assist and control the anisotropic growth of the atomic Ag nanoparticles to Ag nanowires that include hexadecyl-trimethylammonium bromide (CTAB) [51][52][53], sodium dodecyl sulfonate [54][55][56], vitamin B 2 [57][58][59], polyvinyl acetate (PVA) [60,61], dextran [62] and polymethyl vinyl ether [63]. In most chemical approaches, the employed charged precursor contains ions of the desired metal [64].…”

Section: Solution-driven Assembliesmentioning

confidence: 99%

Synthesis and modelling of the mechanical properties of Ag, Au and Cu nanowires

Lah

Trigueros

2019

Science and Technology of Advanced Materials

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The recent interest to nanotechnology aims not only at device miniaturisation, but also at understanding the effects of quantised structure in materials of reduced dimensions, which exhibit different properties from their bulk counterparts. In particular, quantised metal nanowires made of silver, gold or copper have attracted much attention owing to their unique intrinsic and extrinsic length-dependent mechanical properties. Here we review the current state of art and developments in these nanowires from synthesis to mechanical properties, which make them leading contenders for next-generation nanoelectromechanical systems. We also present theories of interatomic interaction in metallic nanowires, as well as challenges in their synthesis and simulation.

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Section: Solution-driven Assembliesmentioning

confidence: 99%

Synthesis and modelling of the mechanical properties of Ag, Au and Cu nanowires

Lah

Trigueros

2019

Science and Technology of Advanced Materials

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“…The enhanced capacity was attributed to the increase in surface area, the change in porous structure and surface charge, magnetic effects, and the increased number of functional groups 11–14 . Moreover, the inclusion of carbon nanotubes into such polymeric matrices has been shown to improve the tensile strength and thermal stability, remarkably 20,21 . The reinforcement effect is due to hydrogen bonding and/or chemical bonding between the matrix and the nanofiller, that is, carbon nanotubes.…”

Section: Introductionmentioning

confidence: 99%

“…The extent of reinforcement is dependent upon dispersion homogeneity, the selection of matrix‐nanofiller pair and nanofiller ratio within the matrix 22 . Though many inorganic and organic nanomaterials such as cellulose nanowhiskers, 23 clays, 24 titanium dioxide, 25 and graphene oxide, 26 can be used as nanofilllers, their high aspect ratio, excellent mechanical and chemical properties as well as high electrical and thermal conductivity distinguish carbon nanotubes from these alternatives 17,20 …”

Section: Introductionmentioning

confidence: 99%

“…Previous reports on the production of CS/PVA blends and composites doped with different nanofillers have proven that they are highly efficient for a number of applications ranging from adsorption 14,21 to tissue engineering. 20 With this work, an efficient and reusable CS/PVA/a‐MWCNT composite film was presented providing fast uptake of Cr (VI) from aqueous Cr (VI) solution.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of chitosan/polyvinyl alcohol/amine modified carbon nanotube composite films for rapid chromate removal

Aydin

2020

J of Applied Polymer Sci

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Composite adsorbent films with amine and hydroxyl functionalities were synthesized from chitosan (CS), polyvinyl alcohol (PVA), and amine‐modified carbon nanotubes (a‐MWCNT) by solvent casting method. Weight proportions of CS to PVA and weight percent of a‐MWCNT were optimized to achieve highest chromate removal capacity. Structural characteristics of the composites were investigated using scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy, and thermal gravimetric analysis. Accordingly, incorporation of a‐MWCNT to CS/PVA structure resulted in the generation of nanochannels, which enhanced adsorption capacity. Moreover, the composite comprising 0.4% wt. a‐MWCNT provided over 99% of Cr (VI) removal from 50 mg L−1 Cr (VI) solution within five minutes of contact time. Redlich–Peterson and Radke–Prausnitz isotherm models provided the highest conformity to adsorption data. Maximum chromate sorption capacity of CS/PVA/a‐MWCNT composite film was determined as 134.2 mg g−1 being 172% higher than that of CS/PVA. Regeneration was best achieved in 1.0 M NaOH and the composite was shown to retain at least 70% of its original capacity after five consecutive adsorption–desorption cycles.

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“…Functionalization of MWCNTs using ultrasound cavitation technique can be easily possible. [44][45][46][47][48][49][50] Silicone rubber, a rubber-like material composed of silicone is an important elastomer, which contains silicon together with carbon, hydrogen, and oxygen. Silicone rubbers are widely used in industry, and there are multiple formulations.…”

Section: Introductionmentioning

confidence: 99%

Effect of functionalized multi-walled carbon nanotubes on physicomechanical properties of silicone rubber nanocomposites

Tamore

Ratna

Mishra

et al. 2019

Journal of Composite Materials

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Ethyl-4-aminocinnamate functionalized multi-walled carbon nanotubes–reinforced silicone rubber nanocomposites were developed by means of compounding (two roll-mill) and molding (compression). Meanwhile, multi-walled carbon nanotubes were synthesized using a catalytic chemical vapor deposition technique and functionalized using ethyl-4-aminocinnamate. The as-synthesized and functionalized multi-walled carbon nanotubes were subjected to Raman spectroscopy, Fourier-transform infrared spectroscopy, field emission scanning electron microscope, and transmission electron microscopy to know the presence of the functional group with its shape and size. Further, silicone rubber nanocomposites were subjected to study its mechanical (tensile strength, Young's modulus, and elongation at break), thermal (stability), and physical (swelling index and hardness) properties. The amount of loading of functionalized multi-walled carbon nanotubes was from 0 to 1 wt%. It was observed that with the increase in the amount of functionalized multi-walled carbon nanotubes loading, the properties were found to be increased. This improvement was due to uniform dispersion with the alignment of functionalized multi-walled carbon nanotubes inside the rubber matrix. Moreover, this improvement was due to weak functionalizing materials which make the surface smooth and glossy so as to facilitate uniform dispersion of materials. Also, thermal stability was found to be increased due to shifting of heat uniformly throughout the rubber matrix. Certainly, it reduces the swelling indices of silicone rubber as the chains are closely packed which does not allow a solution to get penetrated. This improvement in properties of silicone rubber nanocomposites was reflected from field emission scanning electron microscope, which shows uniform dispersion with the alignment of functionalized multi-walled carbon nanotubes inside the rubber matrix.

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Microwave-assisted treatment of MWCNTs with vitamin B 2 : Study on morphology, tensile and thermal behaviors of poly(vinyl alcohol) based nanocomposites

Cited by 13 publications

References 30 publications

Synthesis and modelling of the mechanical properties of Ag, Au and Cu nanowires

Synthesis and modelling of the mechanical properties of Ag, Au and Cu nanowires

Fabrication of chitosan/polyvinyl alcohol/amine modified carbon nanotube composite films for rapid chromate removal

Effect of functionalized multi-walled carbon nanotubes on physicomechanical properties of silicone rubber nanocomposites

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