Optical and Thermal Properties of Polycarbonate–TiO<sub>2</sub> Nanocomposite Film

Jaleh, Babak; Shahbazi, Nima; Jabbari, Ameneh

doi:10.1080/15533174.2014.988821

Cited by 15 publications

(2 citation statements)

References 24 publications

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“…In addition to the evolution of H 2 O and CO 2 over the entire mass loss range, alcohols, ethers, and carbonates are predominantly found at the first stage of PC thermal degradation, and the carbonates produced undergo rearrangements and eventually char during the second stage. 39 Some easily degradable wood elements, on the other hand, such as hemicellulose and extractives, deteriorated throughout the melting process. 3 Table 3, thermal data obtained from TGA thermograms of the PC/ WF and PC/WF/TiO 2 .…”

Section: Thermal Property Analysismentioning

confidence: 99%

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Jawad¹,

Ahmed²

2023

Journal of Thermoplastic Composite Materials

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In this work, the thermal stability of wood flour (WF) was modified using a boric acid treatment. To further understand the impacts of incorporating various proportions of titanium dioxide (TiO2) nanoparticles loaded on polycarbonate (PC)/wood flour. The rheological, mechanical, thermal, electrical, and interfacial properties were studied. Various properties of the resultant PC/WF/TiO2 nanocomposites were then characterized. The viscosity of the nanocomposite was shown to decrease with shear rate and temperature. XRD investigation indicated that, by introducing TiO2 nanoparticles into PC/WF, the amorphous phase decreased, and the degree of crystallinity increased, as compared to bare PC/WF, from 65.78 to 42.29. In addition, the TGA profile showed that the nanocomposites have a higher resistance to thermal degradation than PC/WF alone. It was observed that the char residue resulting from the TGA of PC/WF/10%wt TiO2 increased to 5.69% compared to pure PC/WF (1.32%). It was found that an appropriate amount of TiO2 in PC/WF caused a significant increase in tensile strength, elongation at break, and on impact strength. These were attributed to an increase in the interface of the dispersed phase. The incorporation of nanoparticles enhanced the thermal conductivity of the nanocomposites, which was found to be higher when a TiO2 content of ∼3 wt% was used. The electrical conductivity of the PC/WF/TiO2 nanocomposite (<3 wt%) hindered the movement of free-moving ions, therefore reducing the nanocomposite’s electrical conductivity. However, at > 3 wt% of TiO2, due to the aggregation of nanoparticles, TiO2 nanoclusters formed in the PC/WF composite. Therefore, the additional space so created for the movement of conduction ions at the interface may have resulted in increased ion mobility. This could be the one of explanations for the increased electrical conductivity associated with higher wt% of TiO2. Results showed that treating the PC/WF/TiO2 nanocomposites with boric acid decreased both the rate of heat release and the total heat release.

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Section: Thermal Property Analysismentioning

confidence: 99%

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Jawad¹,

Ahmed²

2023

Journal of Thermoplastic Composite Materials

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“…Polymer composites are a class of materials with prominent physicochemical properties, where a polymer acts as the matrix and micro-, macro-, or nanomaterials as the filler [ 1 ]. Researchers have reported that nanofillers (e.g., carbon nanotubes or nano-semiconductors) can improve some features of polymers, such as their electrical conductivity and mechanical behavior [ 2 , 3 , 4 , 5 , 6 ]. Accordingly, polymer nanocomposites (PNCs) are interesting for the industry due to their enhanced properties, and have been receiving applications in fields such as environmental remediation, energy storage, and biomedicine [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation

et al. 2022

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Polycarbonate (PC)-ZnO films with different percentages of ZnO were prepared by a solution stirring technique and subjected to ultraviolet (UV; λ = 254 nm) irradiation. Structural parameters of the samples and the effects of UV irradiation on the surface properties of the PC and PC-ZnO nanocomposites were evaluated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), water contact angle (WCA) measurements, and a Vickers microhardness (HV) tester. The XRD patterns of the nanocomposite films were found to show an increase in crystallinity with the increasing ZnO nanoparticles percentage. The WCA was found to be reduced from 90° to 17° after 15 h of UV irradiation, which could be ascribed to the oxidation of the surface of the samples during the irradiation and exposure of the ZnO nanoparticles, a result that is also supported by the obtained XPS data. The microhardness value of the PC-ZnO films including 30 wt.% ZnO enhanced considerably after UV radiation, which can also be attributed to the exposition of the ZnO nanoparticles after photodegradation of the PC superficial layer of the nanocomposite films.

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SnS2/Polycarbonate Nanocomposites: Structural and Optical Characterizations

Mohamed

Abdel-Kader

2019

J Inorg Organomet Polym

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Optical and Thermal Properties of Polycarbonate–TiO₂ Nanocomposite Film

Cited by 15 publications

References 24 publications

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation

SnS2/Polycarbonate Nanocomposites: Structural and Optical Characterizations

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Optical and Thermal Properties of Polycarbonate–TiO2 Nanocomposite Film

Cited by 15 publications

References 24 publications

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Studying the influence of the addition of nano-titanium dioxide on the rheological, mechanical, thermal, and electrical properties of polycarbonate/wood flour

Preparation of Polycarbonate-ZnO Nanocomposite Films: Surface Investigation after UV Irradiation

SnS2/Polycarbonate Nanocomposites: Structural and Optical Characterizations

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Optical and Thermal Properties of Polycarbonate–TiO₂ Nanocomposite Film