Relevant bibliographies by topics / Polyvinyl Chloride-Optical Properties

Academic literature on the topic 'Polyvinyl Chloride-Optical Properties'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Polyvinyl Chloride-Optical Properties"

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Rasmagin, S. I., and V. I. Kryshtob. "Electrical and Optical Properties of Polyvinyl Chloride–Polyacetylene Copolymer." Technical Physics 65, no. 6 (June 2020): 909–13. http://dx.doi.org/10.1134/s1063784220060249.

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Banerjee, M., Amit Jain, and G. S. Mukherjee. "Microstructural and optical properties of polyvinyl alcohol/manganese chloride composite film." Polymer Composites 40, S1 (October 16, 2018): E765—E775. http://dx.doi.org/10.1002/pc.25017.

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El Sayed, A. M., and W. M. Morsi. "Dielectric relaxation and optical properties of polyvinyl chloride/lead monoxide nanocomposites." Polymer Composites 34, no. 12 (August 7, 2013): 2031–39. http://dx.doi.org/10.1002/pc.22611.

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Abdullah, Omed Ghareb, and Dlear Rafiq Saber. "Optical Absorption of Polyvinyl Alcohol Films Doped with Nickel Chloride." Applied Mechanics and Materials 110-116 (October 2011): 177–82. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.177.

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Films of pure and doped Polyvinyl alcohol (PVA) with different concentration of Nickel Chloride (NiCl2) were prepared using the casting technique, in order to investigate the effect of NiCl2 additions on the optical properties of PVA host. The dispersion studies of pure PVA film and PVA films doped with NiCl2 were studied using complex refractive index in the wavelength range 190-1100 nm. The absorption spectral analysis showed that the optical energy band is due to the direct and indirect allowed optical transitions. The optical energy band gap Egopt of the films decreases with increasing NiCl2 contents, while the Urbach energy ∆Et called the width of localized states in the optical band gap decreases from 0.7414 to 0.1891 eV. The reductions of optical energy band gap were observed for all samples after annealing at temperatures 70oC for three hours.
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Abdel-Baset, T., M. Elzayat, and S. Mahrous. "Characterization and Optical and Dielectric Properties of Polyvinyl Chloride/Silica Nanocomposites Films." International Journal of Polymer Science 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/1707018.

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Silica nanoparticles were synthesized by a sol-gel method and mixed with different amounts of polyvinyl chloride (PVC) to get nanocomposite films. The samples were characterized by XRD, HR-TEM, SEM, and FTIR. High resolution transmission electron microscopy (HR-TEM) proved that the average particle size of the nanosilica is 15 nm. The scanning electron microscopy (SEM) showed that the nanosilica was well dispersed on the surface of the PVC films. Fourier Transform Infrared (FTIR) spectra for nanocomposite films intimate a significant change in the intensity of the characteristic peaks of the functional group with addition of nanosilica. The optical band gap was found to decrease with the addition of nanosilica while the refractive index increased. The dielectric constantε′, the dielectric loss modulusM′′, and AC conductivity(σAC)were also studied. It was found thatε′increases with temperature for all samples, clear dielectricα-relaxation observed from dielectric lossM′′around the glass temperature (Tg), and this could be related to micro-Brownian motion of the main PVC chain. The activation energy was calculated, and the AC conductivity could be a hopping one. The results of this work are discussed and compared with previously obtained data.
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Ahmed, Dina S., Mohammed Kadhom, Angham G. Hadi, Muna Bufaroosha, Nadia Salih, Wedad H. Al-Dahhan, and Emad Yousif. "Tetra Schiff Bases as Polyvinyl Chloride Thermal Stabilizers." Chemistry 3, no. 1 (February 17, 2021): 288–95. http://dx.doi.org/10.3390/chemistry3010021.

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Tetra Schiff bases were used as thermal stabilizers to enhance the properties of polyvinyl chloride (PVC) when operated at high temperatures. The thermal stability of PVC films doped with Schiff bases was tested by the weight-loss method, Fourier transform infrared (FTIR) spectroscopy, thermal aging test, optical microscope, and atomic force microscope (AFM). Results showed that embedding these additives increased the stability time of the polymer, which decreased the degradation reaction tendency. Furthermore, the primary color of PVC was improved by adding the Schiff bases using oven-aging. In addition, these Schiff bases resulted in a significant reduction in PVC’s conjugated double bonds and, hence, the weight loss.
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Hamdalla, Taymour A., Taha A. Hanafy, and Ashraf E. Bekheet. "Influence of Erbium Ions on the Optical and Structural Properties of Polyvinyl Alcohol." Journal of Spectroscopy 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/204867.

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Polyvinyl alcohol (PVA) films doped with erbium chloride (ErCl3) have been prepared by casting from their aqueous solutions. The structure of the doped samples as well as the interactions between the host PVA and Er+3was investigated using FTIR spectroscopy. The optical measurement was recorded at room temperature in the range from 200 nm to 2000 nm. FTIR measurements revealed that Er+3forms complex configuration within the PVA structure. PVA doped with 9 wt% of ErCl3exhibits energy gap and refractive index of 5.1 eV and 1.72, respectively. The effect of the doping increment of ErCl3on the optical parameters has been discussed.
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El Sayed, A. M., S. El-Sayed, W. M. Morsi, S. Mahrous, and A. Hassen. "Synthesis, characterization, optical, and dielectric properties of polyvinyl chloride/cadmium oxide nanocomposite films." Polymer Composites 35, no. 9 (January 13, 2014): 1842–51. http://dx.doi.org/10.1002/pc.22839.

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9

Salman, Sabah A., Nabeel A. Bakr, and Marwa R. Jwameer. "Effect of Annealing on the Optical Properties of (PVA-CuCl) Composites." International Letters of Chemistry, Physics and Astronomy 63 (January 2016): 98–105. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.63.98.

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Films of polymer (polyvinyl alcohol (PVA)) doped with CuCl salt at different concentrations (2 and 10) wt% were prepared using casting technique. The optical properties of the films were studied after annealing. The transmission and absorption spectra have been recorded in the wavelength range of (300-1100) nm. The effect of annealing on the optical properties for (PVA-CuCl) films with different concentrations (2 and 10) wt% of copper chloride salt shows that the transmittance decreased after annealing for all the films. The optical constants (absorption coefficient, refractive index, extinction coefficient, real and imaginary parts of dielectric constant) for all the films are affected by annealing. The energy gap (Eg) of all the films decreased after annealing.
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Salman, Sabah A., Nabeel A. Bakr, and Marwa R. Jwameer. "Effect of Annealing on the Optical Properties of (PVA-CuCl) Composites." International Letters of Chemistry, Physics and Astronomy 63 (January 4, 2016): 98–105. http://dx.doi.org/10.56431/p-3ua911.

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Films of polymer (polyvinyl alcohol (PVA)) doped with CuCl salt at different concentrations (2 and 10) wt% were prepared using casting technique. The optical properties of the films were studied after annealing. The transmission and absorption spectra have been recorded in the wavelength range of (300-1100) nm. The effect of annealing on the optical properties for (PVA-CuCl) films with different concentrations (2 and 10) wt% of copper chloride salt shows that the transmittance decreased after annealing for all the films. The optical constants (absorption coefficient, refractive index, extinction coefficient, real and imaginary parts of dielectric constant) for all the films are affected by annealing. The energy gap (Eg) of all the films decreased after annealing.
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Conference papers on the topic "Polyvinyl Chloride-Optical Properties"

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Zhao, Danyang, Yujie Li, Minjie Wang, Chunzheng Duan, and Zhong You. "Fabrication of Polymer Origami-Based V-Type Folded Core." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46686.

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The origami-based folded core has a broad prospect in applications. However, the fabrication difficulties limit its developments due to the complicate structures with multiple zigzags and fluctuations. In this study, several feasible methods to fabricate polymer origami-based folded core were proposed. Based on the analysis of folded structural features, the vacuum forming process of polymer V-type folded core was deeply investigated. Wall thickness distributions of the folded structure on polyvinyl chloride (PVC) and polyethylene terephthalate (PET) sheets were measured. The results showed that the wall thickness along the straight crease line presents a single peak distribution, while that along the zigzag one shows a dual peak distribution, and the wall thickness of the top zigzag crease line is more uniform and large than that of the bottom one. The mold temperature, polymer sheet temperature and material properties of polymer have great influence on product thickness. Vacuum forming is a feasible way to fabricate polymer origami-based folded core, and the high-quality fabrication of folded structure may be accomplished by designing more reasonable forming mold and selecting optical process parameters.
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