Preparation and structural investigation of Polyethylene glycol (PEG) / nano-ferrite composites

Saafan, S.A.; El-Ghazzawy, E.H.; Abo-aita, Nagat M.

doi:10.21608/ejs.2021.98349.1022

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…All prepared samples' elastic properties were investigated based on their XRD and FTIR results. The F A , F B , C 11 , C 12 , B , Y , G , V L , and V S have been calculated by using the following formulas (Equations (1) , (2) , (3) , (4) , (5) , (6) ) [ 39 , 40 ]:

where ( μ = 2.061 × 10 −23 g) is the reduced mass of O 2− and Fe 3+ ions and ( c = 3 × 10 10 cm/s) is the velocity of the electromagnetic wave, D x is the X-ray density [ 41 ],

is the Poisson’s ratio, and a is the lattice constant.…”

Section: Resultsmentioning

confidence: 99%

“…As a result of this interaction, there is also an expansion in the bond length at the tetrahedral and octahedral sites of the ferrites. This expansion accounts for the observed decrease in the values of the vibrational frequencies ν 1 and ν 2 [ 41 ]. This has greatly affected the composites' electrical properties, as will be discussed later.…”

Section: Resultsmentioning

confidence: 99%

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Delving into the properties of nanostructured Mg ferrite and PEG composites: A comparative study on structure, electrical conductivity, and dielectric relaxation

El-Ghazzawy,

Zakaly,

Alrowaily

et al. 2023

Heliyon

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where ( μ = 2.061 × 10 −23 g) is the reduced mass of O 2− and Fe 3+ ions and ( c = 3 × 10 10 cm/s) is the velocity of the electromagnetic wave, D x is the X-ray density [ 41 ],

is the Poisson’s ratio, and a is the lattice constant.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Delving into the properties of nanostructured Mg ferrite and PEG composites: A comparative study on structure, electrical conductivity, and dielectric relaxation

El-Ghazzawy,

Zakaly,

Alrowaily

et al. 2023

Heliyon

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Consolidation materials used with illuminated and non-illuminated paper manuscripts and historical leather bindings: a review

Abdel-Hamied,

Abdelhafez,

Abdel-Maksoud

2024

PRT

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Purpose This study aims to focus on the main materials used in consolidation processes of illuminated paper manuscripts and leather binding. Design/methodology/approach For each material, chemical structure, chemical composition, molecular formula, solubility, advantages, disadvantages and its role in treatment process are presented. Findings This study concluded that carboxy methyl cellulose, hydroxy propyl cellulose, methyl cellulose, cellulose acetate, nanocrystalline cellulose, funori, sturgeon glue, poly vinyl alcohol, chitosan, chitosan nanoparticles (NPs), gelatin, aquazol, paraloid B72 and hydroxyapatite NPs were the most common and important materials used for the consolidation of illuminated paper manuscripts. For the leather bindings, hydroxy propyl cellulose, polyethylene glycol, oligomeric melamine-formaldehyde resin, acrylic wax SC6000, pliantex, paraloid B67 and B72, silicone oil and collagen NPs are the most consolidants used. Originality/value Illuminated paper manuscripts with leather binding are considered one of the most important objects in libraries, museums and storehouses. The uncontrolled conditions and other deterioration factors inside the libraries and storehouses lead to degradation of these artifacts. The brittleness, fragility and weakness are considered the most common deterioration aspects of illuminated paper manuscripts and leather binding. Therefore, the consolidation process became vital and important to solve this problem. This study presents the main materials used for consolidation process of illuminated paper manuscripts and leather bindings.

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Effects of heat treatment on characteristics of Zn substituted Co/Mn ferrite nanoparticles

Deraz

2023

SCI SINTER

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Glycine assisted self-combustion method resulted in fabrication of cobalt-manganese ferrite substituted by zinc ( Zn ) element. The as-synthesized Zn substituted Co-Mn ferrite was subjected to heat treatment at 600?C and 800?C for 2h. Effects of heat treatment on the structural, morphological, surface and magnetic properties of ZnCoMn ferrite were studied. These properties were characterized by using various techniques including TGA-DTGA, FTIR, XRD, SEM, EDX, TEM and VSM. The results showed that the used preparation route led to the formation of nano crystalline Zn0.2Co0.4Mn0.4Fe2O4 particle with cubic spinel type structure. The crystallinity of this ferrite increases as the heat treatment increases. However, the preparation method resulted to the creation of spongy, fluffy, foamy and fragile material with cubic type structure with some agglomerations. Increasing the calcination temperature from 600?C to 800?C, led to a decrease in the surface area (39.4 %) of the as-synthesized ferrite. This treatment causes an increase in the magnetization(40.3%) of this ferrite. The heat treatment that led to various changes in the different properties of the manufactured ferrite was discussed.

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Preparation and structural investigation of Polyethylene glycol (PEG) / nano-ferrite composites

Cited by 3 publications

References 31 publications

Delving into the properties of nanostructured Mg ferrite and PEG composites: A comparative study on structure, electrical conductivity, and dielectric relaxation

Delving into the properties of nanostructured Mg ferrite and PEG composites: A comparative study on structure, electrical conductivity, and dielectric relaxation

Consolidation materials used with illuminated and non-illuminated paper manuscripts and historical leather bindings: a review

Effects of heat treatment on characteristics of Zn substituted Co/Mn ferrite nanoparticles

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