Optical, thermal and combustion properties of self-colored polyamide nanocomposites reinforced with azo dye surface modified ZnO nanoparticles

Hajibeygi, Mohsen; Shabanian, Meisam; Omidi-Ghallemohamadi, Mehrdad; Khonakdar, Hossein Ali

doi:10.1016/j.apsusc.2017.04.139

Cited by 29 publications

(8 citation statements)

References 63 publications

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“…As for the P‐ZnO@15% composite, the T 5% is close to T max , which is caused by the decomposition of polymer. This enhancement in the composite's thermal stability may be attributed to the strong adhesion between ZnO and the polymer matrix along with the uniform distribution of ZnO particles in the PVDF matrix …”

Section: Resultsmentioning

confidence: 99%

Polymeric hybrid films with photocatalytic activity under visible light

Zanrosso

Piazza

Lansarin

2018

J of Applied Polymer Sci

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The immobilization of photocatalysts on several kinds of substrates has been widely studied over the past few years, focusing mainly on improving its industrial application. In this work, novel hybrid films were prepared, employing TiO2 P25, commercial ZnO or BiOI, synthetized through hydrothermal method and immobilized on poly(vinylidene fluoride) by the non‐solvent‐induced phase inversion technique. Subsequently, the prepared composites were evaluated by photodegradation of methylene blue (MB) under ultraviolet or visible light. The samples were also characterized by scanning electron microscope, thermo‐gravimetric analysis, attenuated total reflection–Fourier transform infrared spectroscopy, and X‐ray diffractometer analysis to improve comprehension of the composites' photocatalytic behavior. The degradation reaction of the contaminants exhibited pseudo‐first order kinetics in all samples, and achieved better performance when compared to simple photolysis. The recyclability of the hybrid films was also evaluated and proved that polymeric matrix is a promising material for the preparation of composites for photocatalysis applications. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46367.

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Section: Resultsmentioning

confidence: 99%

Polymeric hybrid films with photocatalytic activity under visible light

Zanrosso

Piazza

Lansarin

2018

J of Applied Polymer Sci

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“…), the absorption band at 3448 cm −1 is related to the O‐H groups stretching vibration and the strong absorption band at 547 cm −1 is attributed to the stretching vibration of Zn‐O bond. Also the weak absorption band at 1,623 cm −1 is related to bending vibration of water molecules . The FTIR spectrum of SMZ showed a new absorption bands which were appeared at 2,929, 1,625, 1,195, 1,019, 894, and 547 cm −1 as shown in Fig.…”

Section: Characterization Of Pa/zno Nanocompositesmentioning

confidence: 85%

“…It is interesting to mention that, incorporation of 2 mass % of SMZ to the PA matrix (PASN 2), no significant change observed in the temperature range between 160 and 320 C (Fig. 10a), compared with the neat PA, and also in char residue, which can be due to the lack of PEI in the surface of ZnO nanoparticles and consequently low intermolecular interactions between the ZnO nanoparticles and the PA chain [68].…”

Section: Characterization Of Pa/zno Nanocompositesmentioning

confidence: 98%

“…Generally, polymers containing azo as a dye chromophores, imine and naphthalene rings have been noticed as kind of materials with unique optical properties . Polyazomethines have been exhibited interesting optical properties such as PL emission and adsorption of UV‐Vis due to their resonance stabilization in Schiff base structure .…”

Section: Characterization Of Pa/zno Nanocompositesmentioning

confidence: 99%

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New nanocomposites based on polyamide containing imine groups reinforced with functionalized polyethyleneimine‐modified ZnO nanoparticles; fabrication, characterization and lead ion adsorption studies

2018

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New polyamide (PA)/ZnO nanocomposites were prepared using polyethyleneimine (PEI) surface‐modified ZnO nanoparticles (PSMZ) by solution mixing method. PSMZ was prepared via imine linkages between PEI and silane‐amine functionalized ZnO nanoparticles. Multifunctional PA containing imine groups was synthesized by direct polycondensation reaction and used as a polymer matrix. X‐ray diffraction (XRD) and field‐emission scanning electron microscopy results showed that the ZnO nanoparticles were uniformly distributed in the PA matrix. The UV–Vis spectra of the nanocomposites exhibited reduction in absorption intensities due to high interactions between functional groups of PSMZ and PA. The thermogravimetric analysis results exhibited that the temperature at 10 mass% loss (T10) increased from 314 to 352°C for PA nanocomposite containing 6 mass% of PSMZ, as well as enhancement of char residue compared with the neat PA. Also, the synthesized PA and corresponding nanocomposites were used as effective adsorbent for the lead ions removal from aqueous solution, which the results showed up to 100% removal efficiency. POLYM. COMPOS., 40:2602–2616, 2019. © 2018 Society of Plastics Engineers

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“…Therefore, some work has been done to decrease the water vapor and gas permeability of PLA . The preparation of polymer‐based nanocomposites has been a cost‐effective and promising way to obtain materials with desired properties such as improved mechanical, optical, and gas‐barrier properties …”

Section: Introductionmentioning

confidence: 99%

The effect of organo‐modified silicate nanolayers on the oxygen and water vapor barrier properties of poly(lactic acid)

Hajibeygi

Shabanian

2018

J Chinese Chemical Soc

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For improving the oxygen and water vapor barrier properties of poly(lactic acid) (PLA), a new series of PLA-based nanocomposite films containing an organoclay (OC) and a hydrogel were prepared via the solvent casting method. The synthesized hydrogel was used in a PLA system combined with and without the reactive organo-modified clay. Montmorillonite and the protonated form of SABO ® STAB UV 94 were used to prepare the OC via an ion-exchange reaction. The modification of silicate layers was investigated by FTIR, XRD, and TGA techniques. The char residue of the OC obtained was 28% lower than that of the neat montmorillonite, which indicated the presence of SABO in the silicate layer structure. In the presence of the OC, the hydrogel showed a synergistic effect to enhance the barrier properties of PLA. The water vapor permeability decreased from 0.243 to 0.224 g/m 2 Á24 hr in PLA/hydrogel-OC nanocomposite containing 3 mass% each of the hydrogel and OC (PSH 6) compared to the neat PLA. Also, the oxygen permeability of PSH 6 was 37% lower than that of the neat PLA.

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Optical, thermal and combustion properties of self-colored polyamide nanocomposites reinforced with azo dye surface modified ZnO nanoparticles

Cited by 29 publications

References 63 publications

Polymeric hybrid films with photocatalytic activity under visible light

Polymeric hybrid films with photocatalytic activity under visible light

New nanocomposites based on polyamide containing imine groups reinforced with functionalized polyethyleneimine‐modified ZnO nanoparticles; fabrication, characterization and lead ion adsorption studies

The effect of organo‐modified silicate nanolayers on the oxygen and water vapor barrier properties of poly(lactic acid)

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