Polymer nanocomposites for biomedical applications

Khan, Ezzat; Khan, Shahab; Khan, Abdullah

doi:10.1016/b978-0-323-91611-0.00025-6

Cited by 10 publications

(31 citation statements)

References 93 publications

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“…Typically, thermoplastic polymers like PEO undergo physical crosslinking, while thermosetting polymers like PU undergo chemical crosslinking. 23 In this study, chemical crosslinking is achieved between the CL and –COOH-containing PU. At first, the crosslinker reacts with COOH-group-containing PU and forms an intermediate containing an acyl urea structure.…”

Section: Resultsmentioning

confidence: 99%

Water-based eco-friendly fabrication of physicochemically crosslinked and highly wettable PU-rich electrospun PU/PEO nanofiber composites with exceptional chemical and thermal stability

Ohsawa¹,

Mayakrishnan²,

Yan³

et al. 2023

Green Chem.

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Section: Resultsmentioning

confidence: 99%

Water-based eco-friendly fabrication of physicochemically crosslinked and highly wettable PU-rich electrospun PU/PEO nanofiber composites with exceptional chemical and thermal stability

Ohsawa¹,

Mayakrishnan²,

Yan³

et al. 2023

Green Chem.

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“…Reinforcement is an ingredient that is inserted into the matrix material in order to improve the mechanical properties of nanocomposites (or nanomaterials). Nanoscale filler materials are commonly used as reinforcement [7].…”

Section: Nanocompositesmentioning

confidence: 99%

A Review on the Three Types of Nanocomposites Synthesis, Characterization and Their Applications in Different Areas.

Gemachu,

Bogale

2024

Preprint

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Nanotechnology is concerned with the creation of particles and materials at nanoscale levels. Nanocomposite is a combination or matrix, in which different materials combine to develop new properties of the materials ensuring that one of the materials have size in range of 1-100 nm. Nanocomposites are classified according to the types of reinforcement materials and matrix materials used in their construction. Nanocomposites are divided into three types based on the matrix material: ceramic matrix nanocomposites (CMNC), polymer matrix nanocomposites (PMNC), and metal matrix nanocomposites (MMNC) (MMNC). The synthetic methods of nanocomposites are frequently classified in to two classes. These are top-down and bottom up approaches. The type of synthetic technique used is determined by the nanocomposites' intended properties. There are different wet methods for synthesis of metal nanoparticles and nanocomposites among these co-precipitations, sol gel and hydrothermal methods are cost effective as compared to other methods. The synthesized nanocomposites can be characterized using different techniques to get insight into the morphology, particle size, phase, composition, thermal stability, optical, magnetic, electrical and thermal properties. Also, nanocomposites are used in medical, pharmaceutical industry, food packaging, to electronics and energy industry. Thus this review focuses on the main ideas about synthesis, characterization and application of nanocomposites.

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“…Metal‐ and metal oxide‐fortified polymeric materials have been widely used as composites to guard against X‐ and γ‐rays, as shown by previous studies 21–24 . Metal‐polymer composites are often discussed in the literature, whereby two distinct components are combined to create a lightweight lattice structure along with the inclusion of high Z elements like bismuth (Bi), tungsten (W), and barium (Ba) 25,26 . For example, adding Bi 2 O 3 to silicone rubber as a flexible shielding material increased its elastic modulus, thermal stability, and X/γ‐ray attenuation rate to 96.4% 27 …”

Section: Introductionmentioning

confidence: 98%

Synthesis and characterization of waste polyethylene/Bi₂O₃ composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials

Awad,

Raslan,

Abou‐Laila

et al. 2024

Polymer Engineering & Sci

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In the present research, waste polyethylene (WPE)/Bi2O3 composites have been investigated as lightweight, inexpensive, and nontoxic lead‐free γ‐ray shielding materials. Different WPE‐based composites were prepared with varying concentrations of Bi2O3 (30 and 40 phr). The effect of adding ZnO and CuO nanoparticles (NPs) inside the WPE/Bi2O3 (30) matrix was studied by incorporating 10 phr of NPs inside it. The nanocomposites' structural, thermal, and mechanical properties and competence in shielding against γ‐radiation are studied. The outcomes revealed that the mechanical properties of the pristine WPE were enhanced after incorporating Bi2O3 by 30 phr, and then it worsened after increasing the Bi2O3 ratio to 40 phr. In contrast, better mechanical properties were obtained for those composites with NPs, where the maximum tensile strength (16.2 MPa) was recorded for the WPE/Bi2O3/CuO composite (higher than WPE by 47.27%). Numbers of parameters like μm, HVL (half‐value layer), TVL (tenth value layer), RPE%, and percentage of heaviness can denote the efficiency of shielding properties of composites at 662 KeV from 137Cs point source. It was found that μm and RPE% reach the maximum value for WPE/Bi2O3 (40 phr). Adding NPs decreases μm of WPE/Bi2O3 (30) slightly.Highlights Composites based on waste polyethylene (WPE)/Bi2O3 (30 and 40 phr) were fabricated. Nano CuO and ZnO improved the mechanical properties of WPE/Bi2O3 (30). WPE/Bi2O3 (40) composites show the best shielding characteristics. Nano CuO and ZnO slightly decreased μm of WPE/Bi2O3 (30).

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Polymer nanocomposites for biomedical applications

Cited by 10 publications

References 93 publications

Water-based eco-friendly fabrication of physicochemically crosslinked and highly wettable PU-rich electrospun PU/PEO nanofiber composites with exceptional chemical and thermal stability

Water-based eco-friendly fabrication of physicochemically crosslinked and highly wettable PU-rich electrospun PU/PEO nanofiber composites with exceptional chemical and thermal stability

A Review on the Three Types of Nanocomposites Synthesis, Characterization and Their Applications in Different Areas.

Synthesis and characterization of waste polyethylene/Bi₂O₃ composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials

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Polymer nanocomposites for biomedical applications

Cited by 10 publications

References 93 publications

Water-based eco-friendly fabrication of physicochemically crosslinked and highly wettable PU-rich electrospun PU/PEO nanofiber composites with exceptional chemical and thermal stability

Water-based eco-friendly fabrication of physicochemically crosslinked and highly wettable PU-rich electrospun PU/PEO nanofiber composites with exceptional chemical and thermal stability

A Review on the Three Types of Nanocomposites Synthesis, Characterization and Their Applications in Different Areas.

Synthesis and characterization of waste polyethylene/Bi2O3 composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials

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Product

Resources

About

Synthesis and characterization of waste polyethylene/Bi₂O₃ composites reinforced with CuO/ZnO nanoparticles as sustainable radiation shielding materials