Study on the Properties of Polyphenylene Sulfide/Nano-Zinc Oxide Composites

2020 ◽  
Vol 1003 ◽  
pp. 185-190
Author(s):  
Neng Wan ◽  
Wei Hua Yao ◽  
Jui Chen Chen ◽  
Juan Du ◽  
Manuel Reyes De Guzman ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Zinc Oxide ◽  
Polyphenylene Sulfide ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Comprehensive Properties ◽  
Nano Zinc Oxide ◽  
Nano Zinc ◽  
Internal Mixer ◽  
Oxide Composites

Different proportions of nano-zinc oxide were uniformly dispersed in a polyphenylene sulfide matrix by using an internal mixer. Comprehensive properties were determined through tensile strength test, differential scanning calorimetry, X-ray diffraction, thermogravimetry. The results showed that the sample elongation at break and tensile strength considerably increased with the amount of nano-zinc oxide. Its thermal stability has also improved considerably and crystallization temperature of PPS-NanoZnO composite was increased;while the crystalline phase remained unchanged.

Enhanced Dielectric Properties of Polypropylene based Composite using Zinc Oxide Nanorods Filler

2017 ◽  
Vol 33 (3-4) ◽  
pp. 115
Author(s):  
D. J. Sharmila ◽  
J. Brijitta ◽  
R. Sampathkumar
Keyword(s):  
Zinc Oxide ◽  
Dielectric Properties ◽  
Zinc Oxide Nanorods ◽  
X Ray Diffraction ◽  
Weight Percentage ◽  
Nano Zinc Oxide ◽  
Oxide Nanorods ◽  
The Matrix ◽  
Polypropylene Matrix ◽  
Nano Zinc

<p>Polypropylene and zinc oxide nanorods composites were prepared by combination of solution and mixture melting methods. Dielectric properties of the composite thin films were studied to see if zinc oxide nanorods have effect on the dielectric properties of polypropylene thin film. Introduction of zinc oxide nanorods at low filler content in the polypropylene matrix significantly improves the dielectric constant of the matrix. Simultaneously the structure of the composites was characterized by UV, XRD and SEM to understand the features in the structure that determine the functionality of the material. Composites with different weight percentage of zinc oxide nanorods show better absorption in the UV region compared to polypropylene matrix. This is due to the inherent capability of nano zinc oxide to absorb in the UV region. X-ray diffraction pattern of nanocomposites show sharp and highly intense peaks whereas neat polypropylene shows less intense peaks. This may due to the development of crystallinity in the polymer. Uniform distribution of zinc oxide which have a width of around 160-200 nm is observed in the SEM photographs of composites.</p>

Effect of Different Particle Size of Nano-Zinc Oxide on the Surface Binding Energy in Polyimide/Zinc Oxide Composites

2013 ◽  
Vol 785-786 ◽  
pp. 556-560 ◽  
Author(s):  
Jia Qi Lin ◽  
Hui Lin ◽  
Wen Long Yang ◽  
Xiao Kang Li ◽  
Ying Liu ◽  
...  
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
Binding Energy ◽  
Surface Binding ◽  
Nano Zno ◽  
Surface Binding Energy ◽  
Nano Zinc Oxide ◽  
Nano Zinc ◽  
Oxide Composites ◽  
The Relationship

The surface binding energy between the polyimide(PI) and zinc oxide (ZnO) have been simulated using the molecular dynamics theory.The PI / ZnO model has been established by using Forcite program package of Materials Studio software.The total atoms number about 300 million, the radius of the nano-ZnO cluster model have five groups are respectively 0.5 nm, 1 nm, 1.5 nm, 2 nm, 2.5 nm.The effect of different particle size of nano-ZnO on surface binding energy in PI / ZnO composites was investigated. The relationship between the surface binding energy of PI / ZnO composites and the nano-Zno radius, the maximum of surface binding energy were obtained. The computed results show that the intermolecular bonds between nano-ZnO and PI are mainly van der waals bonds.And the surface atomic number of nano-ZnO increases along with the increasing of nano-ZnO radius, indicating that the increasing of contact surface between the nano-ZnO and PI, which lead to the surface binding energy increases, the total energy lower and the system more stable.

Synthesis of nano-zinc oxide with different morphologies and its application on fabrics for UV protection and microbe-resistant defense clothing

2020 ◽  
Vol 90 (21-22) ◽  
pp. 2492-2503
Author(s):  
MA Mousa ◽  
M Khairy
Keyword(s):  
Electron Microscopy ◽  
Escherichia Coli ◽  
Scanning Electron Microscopy ◽  
Staphylococcus Aureus ◽  
Zinc Oxide ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nano Zinc Oxide ◽  
Nano Zinc ◽  
Scanning Electron

A liquid precipitation method was used to prepare zinc oxide nanoparticles in three diverse media: water, methanol, and ethylene glycol. The studied materials were examined by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and ultraviolet-visible spectroscopy. X-ray diffraction patterns showed a hexagonal Wurtzite structure of zinc oxide with a nanocrystalline size. Acquired powders showed different morphologies (rod, star, and spherical structures), which were affected by the nature of the solvent in the reaction. The different zinc oxide powders have varied optical band gaps. Scanning electron microscopy examinations confirmed the arrangement of nano-zinc oxide on the surfaces of the materials. The zinc oxide-covering procedure was carried out on cotton, polyester, and 50/50 wt% polyester/cotton blended fabrics using a simple dip and curing system. The cotton fabric treated with nanorod zinc oxide exhibited the highest ultraviolet protection factor with a value of 247.2. The antimicrobial properties of untreated and treated fabrics with nano-zinc oxide were measured against Gram-negative bacteria (Escherichia coli), Gram-positive bacteria (Staphylococcus aureus), and diploid fungus (Candida albicans). The results showed the antimicrobial action relies on the morphological structure and the particle size of zinc oxide and that it increases with a reduced particle size. The cotton fabric treated with 26 nm nonspherical zinc oxide particles showed the highest antimicrobial efficiency with values of 91.4%, 86.8%, and 84.7% for Staphylococcus aureus, Escherichia coli, and Candida albicans, respectively. The mechanical properties of treated fabrics were studied. The results confirm that nano-zinc oxide is highly useful for improving the performance of defense textile products because of its biocompatibility, environmental friendliness, and nontoxicity.

Morphology, Structure and Particle Size of Hybrid Nanozinc Oxide

2017 ◽  
Vol 728 ◽  
pp. 204-208
Author(s):  
Tanapak Metanawin ◽  
Praripatsaya Panutumrong ◽  
Siripan Metanawin
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
Miniemulsion Polymerization ◽  
Polymer Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nano Zinc Oxide ◽  
Oxide Particles ◽  
Zinc Oxide Particles ◽  
Nano Zinc

The hybrid polymer materials of nano-zinc oxide were synthesized via miniemulsion polymerization technique. Zinc oxide nanoparticles were encapsulated by polystyrene to introduce multi-function to the hybrid nano-zinc oxide. The contents of zinc oxide particles in the hybrid nano-zinc oxide were various from 1wt% to 40wt%. The particles sizes of hybrid nano-zinc oxide were determined by using dynamic light scattering. It was showed that the particle size of the hybrid nano-zinc oxide was in the range of 124-205nm. Scanning electron microscopy was employed to determine the topography and morphology of hybrid nano-zinc oxide. The crystal structure of hybrid nano-zinc oxide were explored by X-ray diffraction spectroscopy.

EFFECT OF IN SITU SURFACE-MODIFIED NANO–ZINC OXIDE ON THE STRUCTURE AND PROPERTIES OF CONVENTIONAL VULCANIZATION IN NATURAL RUBBER

2014 ◽  
Vol 87 (1) ◽  
pp. 21-30 ◽  
Author(s):  
Zhongbiao Man ◽  
Li Deng ◽  
Miao Yang ◽  
Yuehui Chen ◽  
Zhengjie Jin
Keyword(s):  
Electron Microscopy ◽  
Tensile Strength ◽  
Zinc Oxide ◽  
Natural Rubber ◽  
Nano Zno ◽  
X Ray ◽  
Nano Zinc Oxide ◽  
Nano Zinc ◽  
Surface Modified

ABSTRACT In situ surface-modified nano–zinc oxide (ZnO) had been prepared by the sol-gel method. The microscopic structure of the ZnO particles was characterized by X-ray diffraction and transmission electron microscopy. Scanning electron microscopy with energy-dispersed X-ray spectroscopy was used to observe the dispersal of ZnO in conventional vulcanization of natural rubber (NR). Properties such as cure and tensile characteristics as well as heat-resistance oxygen aging properties were researched and compared. The vulcanized structure of vulcanizate was studied by the balance-swelling method and chemical-detecting process. Results demonstrated that the dispersal of in situ surface-modified nano-ZnO in NR vulcanizate was better than that of ordinary ZnO. Compared with the addition of 5 phr of ordinary ZnO in NR, the tensile strength and elongation of NR vulcanizate filled with 2 phr of in situ surface-modified nano-ZnO increased by 0.55% and 10.34%, respectively. Meanwhile, the retention of tensile strength and elongation of vulcanizate increased by 35.85% and 19.36%, respectively.

scholarly journals Role of Bio-based Synthesized Nano Zinc Oxide in Ameliorating the Deleterious Effects Caused by Lead in Vigna radiata L.

2021 ◽  
Author(s):  
RAVI KUMAR YADAV ◽  
Narsingh Bahadur Singh ◽  
AJEY SINGH ◽  
VIJAYA YADAV ◽  
KM NIHARIKA ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Vigna Radiata ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
Zno Nps ◽  
Positive Effects ◽  
Nano Zinc Oxide ◽  
Transmission Electron ◽  
Nano Zinc

Abstract The present work describes the bio-based synthesis (green) and characterization of Zinc oxide nanoparticles (ZnO NPs) using leaf extract of Tridax, the synthesized nanoparticles were used to study their beneficial effect in the growth and metabolism of Vigna radiata. Zinc oxide nanoparticles (ZnONP) were characterized using X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), High-Resolution Transmission Electron Microscopy (HR-TEM), and Ultraviolet–visible spectroscopy (UV–Vis spectra). Growth of V. radiata seedlings was measured in terms of shoot length (SL) and root length (RL) were treated 20 and 40 mg/L concentrations of green synthesized ZnO NPs, and constant concentration (50 mg/L) of PbCl2. These studies have shown the effect of ZnO NPs in the stimulation of growth as well as physiological and biochemical parameters. Vigna seedlings showed positive effects depending upon the increasing concentrations of ZnO NPs. This study suggests that ZnO NPs can be effectively used to ameliorate the toxicity of Pb in Vigna plants.

Effect of Calcination on the Basic Strength of Surface Modified Nano-Zinc Oxide Characterised by FTIR and Back Titration Methods

2015 ◽  
Vol 1107 ◽  
pp. 326-332
Author(s):  
Abdul Rahim Yacob ◽  
Kamaluddeen Suleiman Kabo
Keyword(s):  
Zinc Oxide ◽  
Metal Oxides ◽  
Base Catalysis ◽  
Nano Zinc Oxide ◽  
Back Titration ◽  
And Performance ◽  
Nano Zinc ◽  
Surface Modified ◽  
Heterogeneous Base ◽  
Basic Strength

The use of metal oxides in heterogeneous base catalysis has gained a large interest due to their application in many chemical and industrial processes and is environmental friendly. Basic metal oxides are commonly used and their structures, morphology and performance can be modified by method of preparation and thermal activation. In this study, surface modified amphoteric zinc oxide was prepared via hydration-dehydration method and characterised by TGA and FTIR. The basic strength at various temperatures is characterised by FTIR and back titration analyses. The results shows that surface modified zinc oxide has the highest basic strength of 1.453mmolg-1at 400°C making it a relatively good and suitable compound for use in heterogeneous basic catalysis. This result is also supported by FTIR spectra which show possible relationship between the Lewis O2-and increasing basic strength.

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