Thermal and mechanical properties of nano-titanium dioxide-doped polyvinyl alcohol

Singh, Ravinder; Kulkarni, S. G.; Channe, Shrikant S.

doi:10.1007/s00289-012-0846-3

Cited by 51 publications

(27 citation statements)

References 34 publications

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“…The polymer–nano‐inorganic materials‐based composites may combine the advantages of polymers like flexibility, processability, durability, load bearing capability, etc. and of inorganic nanofillers like selectivity, thermal stability, high melting and boiling points, and densities . In order to obtain the materials with synergetic or complementary behavior between polymer and inorganic nanoparticles, various composites of polymer with inorganic nanoparticles have been synthesized in recent years .…”

Section: Introductionmentioning

confidence: 99%

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al₂O₃ composite synthesized by emulsion polymerization

et al. 2013

Polymers for Advanced Techs

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Poly(2,3-dimethylaniline)/nano-Al 2 O 3 composite (PAC) was synthesized by emulsion polymerization using dodecyl benzene sulfonic acid as emulsifier and dopant. The structure of PAC was characterized by Fourier fransformation infrared spectroscopy, UV-visible adsorption spectroscopy, and field emission scanning electron microscopy. The thermal stability was studied by thermogravimetric analysis, and the electrochemical performances were studied by cyclic voltammetry measurements. Epoxy coatings containing PAC and poly(2,3-dimethylaniline) (P(2,3-DMA)), respectively, were painted on steel, and accelerated immersion tests were performed to evaluate the anticorrosion property of the coatings in 3.5% NaCl solution. The results showed that the addition of PAC and P(2,3-DMA) could improve the anticorrosion performance of epoxy coating significantly and the PAC coating had higher corrosion resistance than that of P(2,3-DMA).

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Section: Introductionmentioning

confidence: 99%

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al₂O₃ composite synthesized by emulsion polymerization

et al. 2013

Polymers for Advanced Techs

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“…Here, as it is seen in Figure , the spectral region where the band at around 620 cm −1 corresponding to out of plane OH bending in pure PVA films was changed after the addition of TiO 2 nanoparticles into PVA films. Although they were not well marked for the unheated 5 wt% TiO 2 /PVA films, some characteristic peaks of TiO 2 , that is, the peaks at around 588 and 660 cm −1 assigned to the stretching mode of TiOTi bond and a band at 506‐515 cm −1 assigned to the vibration of TiOO bond or to TiOTi bond were observed more clearly for heated samples at higher temperatures. Moreover, even though the symmetric (CC) stretching mode in crystalline region of PVA which is considered as a crystallization sensitive band of PVA was observed at 1145 cm −1 for pure PVA films and it was shifted from 1146 to 1152 cm −1 with reducing absorbance from 0.82 to 0.029 as heating temperature increased from 25 to 210°C for the 5 wt% TiO 2 composite films.…”

Section: Resultsmentioning

confidence: 82%

“…Prominent band frequencies and their assignments in pure PVA films and TiO 2 were summarized in Table by using the references in the literature . Here, as it is seen in Figure , the spectral region where the band at around 620 cm −1 corresponding to out of plane OH bending in pure PVA films was changed after the addition of TiO 2 nanoparticles into PVA films.…”

Section: Resultsmentioning

confidence: 99%

Film formation and mechanical properties of an opaque titanium dioxide and transparent polyvinyl alcohol composite films

2019

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Mechanical, optical, and film formation properties of titanium dioxide/polyvinyl alcohol (TiO2/PVA) composites were studied. Two identical experimental sets of % TiO2 content were prepared that one set is in the range of 1, 3, 5, 7, 10, 13, and 20 wt% for the film formation and the second set is 5 and 50 wt% for the mechanical measurements. Photon transmission technique (PT) at room temperature was used for the film formation process after annealing for 10 min at the temperatures changing from 100 to 270°C. The increase and decrease in the transmission light intensity (Itr) from the composite films were attributed to void closure and interdiffusion models, respectively. The results were consistent with the data obtained from the film formation processes and mechanical measurements that the addition of TiO2 in PVA had remarkable improvement on mechanical properties, for example, increment in the Young's modulus and the rigidity as TiO2 content increased from 5 to 50 wt%, and it had also good film forming especially above 10 wt% TiO2 for the void closure processes leading to lower the activation energy. It was observed that for the lower content of TiO2 such as 5 wt%, the tensile strength and Young's modulus increased remarkably for heating temperature increased up to 150°C. However, with the increase of TiO2 content, the maximum values of the mechanical strength and modulus were shifted to 180°C for 50 wt% TiO2 from 150°C for 5 wt% TiO2 because of the thermal stability of TiO2.

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“…However, the band at 681 cm –1 gets shifted to around 606 cm –1 after incorporation of nanohybrid and bare TiO 2 into the polyester matrix. 27 The incorporation of nanohybrid in the nanocomposites also leads to small shifts of some other FTIR absorption bands of polyester. The shifting of the bands indicates the interactions of carboxylic and hydroxyl groups of polyester matrix with the nanohybrid through hydrogen-bonding or other polar–polar interactions.…”

Section: Resultsmentioning

confidence: 99%

Unprecedented Influence of Carbon Dot@TiO₂ Nanohybrid on Multifaceted Attributes of Waterborne Hyperbranched Polyester Nanocomposite

Hazarika

Karak

2018

ACS Omega

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Herein, we wish to report fabrication of multifaceted environmentally friendly benign renewable resource-based waterborne hyperbranched polyester nanocomposites using three different doses of carbon dot@TiO 2 nanohybrid through a facile in situ polymerization technique in the absence of solvent or additional catalyst. Carbon dot@TiO 2 nanohybrid was prepared through a greener one-pot hydrothermal process from bio-based raw materials. The nanocomposites were characterized by different instrumental techniques. The thermosets of these nanocomposites are obtained by curing them with glycerol-based hyperbranched epoxy and fatty acid-based poly(amido amine). Enhancements of 6.67 folds tensile strength, 3.8 folds toughness, 1.7 folds Young’s modulus, >2.5 units gloss, and 46 °C thermal stability were observed for the thermosets by the formation of nanocomposites. The nanocomposites also showed antifogging and anti-icing properties. More interestingly, they can also be used for efficient separation of crude oil and water from their mixture. Thus, these environmentally benign polymeric materials could find applications in different fields.

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Thermal and mechanical properties of nano-titanium dioxide-doped polyvinyl alcohol

Cited by 51 publications

References 34 publications

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al₂O₃ composite synthesized by emulsion polymerization

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al₂O₃ composite synthesized by emulsion polymerization

Film formation and mechanical properties of an opaque titanium dioxide and transparent polyvinyl alcohol composite films

Unprecedented Influence of Carbon Dot@TiO₂ Nanohybrid on Multifaceted Attributes of Waterborne Hyperbranched Polyester Nanocomposite

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Thermal and mechanical properties of nano-titanium dioxide-doped polyvinyl alcohol

Cited by 51 publications

References 34 publications

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al2O3 composite synthesized by emulsion polymerization

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al2O3 composite synthesized by emulsion polymerization

Film formation and mechanical properties of an opaque titanium dioxide and transparent polyvinyl alcohol composite films

Unprecedented Influence of Carbon Dot@TiO2 Nanohybrid on Multifaceted Attributes of Waterborne Hyperbranched Polyester Nanocomposite

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Product

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Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al₂O₃ composite synthesized by emulsion polymerization

Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al₂O₃ composite synthesized by emulsion polymerization

Unprecedented Influence of Carbon Dot@TiO₂ Nanohybrid on Multifaceted Attributes of Waterborne Hyperbranched Polyester Nanocomposite