Advanced anticorrosive coatings prepared from electroactive epoxy–SiO2 hybrid nanocomposite materials

2011 ◽  
Vol 56 (17) ◽  
pp. 6142-6149 ◽  
Author(s):  
Tsao-Cheng Huang ◽  
Yu-An Su ◽  
Tzu-Chun Yeh ◽  
Hsiu-Ying Huang ◽  
Chi-Phi Wu ◽  
...  
Keyword(s):  
Nanocomposite Materials ◽  
Hybrid Nanocomposite ◽  
Anticorrosive Coatings

Advanced anticorrosive coatings prepared from electroactive polyimide–TiO2 hybrid nanocomposite materials

2010 ◽  
Vol 55 (28) ◽  
pp. 8430-8438 ◽  
Author(s):  
Chang-Jian Weng ◽  
Jane-Yu Huang ◽  
Kuan-Yeh Huang ◽  
Yu-Sian Jhuo ◽  
Mei-Hui Tsai ◽  
...  
Keyword(s):  
Nanocomposite Materials ◽  
Hybrid Nanocomposite ◽  
Anticorrosive Coatings

Anticorrosive Coatings Prepared Using Epoxy–Silica Hybrid Nanocomposite Materials

2014 ◽  
Vol 53 (27) ◽  
pp. 10858-10869 ◽  
Author(s):  
H. Abdollahi ◽  
A. Ershad-Langroudi ◽  
A. Salimi ◽  
A. Rahimi
Keyword(s):  
Nanocomposite Materials ◽  
Hybrid Nanocomposite ◽  
Anticorrosive Coatings ◽  
Silica Hybrid

scholarly journals Effects of Ultrasound on Zinc Oxide/Vermiculite/Chlorhexidine Nanocomposite Preparation and Their Antibacterial Activity

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1309 ◽  
Author(s):  
Karla Čech Barabaszová ◽  
Sylva Holešová ◽  
Kateřina Šulcová ◽  
Marianna Hundáková ◽  
Barbora Thomasová
Keyword(s):  
Antimicrobial Activity ◽  
Particle Size ◽  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Ultrasonic Treatment ◽  
Nanocomposite Materials ◽  
Hybrid Nanocomposite ◽  
X Ray Diffraction ◽  
X Ray

Microbial infection and biofilm formation are both problems associated with medical implants and devices. In recent years, hybrid organic-inorganic nanocomposites based on clay minerals have attracted significant attention due to their application potential in the field of antimicrobial materials. Organic drug/metal oxide hybrids exhibit improved antimicrobial activity, and intercalating the above materials into the interlayer of clay endows a long-term and controlled-release behavior. Since antimicrobial activity is strongly related to the structure of the material, ultrasonic treatment appears to be a suitable method for the synthesis of these materials as it can well control particle size distribution and morphology. This study aims to prepare novel, structurally stable, and highly antimicrobial nanocomposites based on zinc oxide/vermiculite/chlorhexidine. The influence of ultrasonic treatment at different time intervals and under different intercalation conditions (ultrasonic action in a breaker or in a Roset’s vessel) on the structure, morphology, and particle size of prepared hybrid nanocomposite materials was evaluated by the following methods: scanning electron microscopy, X-ray diffraction, energy dispersive X-ray fluorescence spectroscopy, carbon phase analysis, Fourier transforms infrared spectroscopy, specific surface area measurement, particle size analysis, and Zeta potential analysis. Particle size analyses confirmed that the ultrasonic method contributes to the reduction of particle size, and to their homogenization/arrangement. Further, X-ray diffraction analysis confirmed that ultrasound intercalation in a beaker helps to more efficiently intercalate chlorhexidine dihydrochloride (CH) into the vermiculite interlayer space, while a Roset’s vessel contributed to the attachment of the CH molecules to the vermiculite surface. The antibacterial activity of hybrid nanocomposite materials was investigated on Gram negative (Escherichia coli, Pseudomonas aeruginosa) and Gram positive (Staphylococcus aureus, Enterococcus faecalis) bacterial strains by finding the minimum inhibitory concentration. All hybrid nanocomposite materials prepared by ultrasound methods showed high antimicrobial activity after 30 min, with a long-lasting effect and without being affected by the concentration of the antibacterial components zinc oxide (ZnO) and CH. The benefits of the samples prepared by ultrasonic methods are the rapid onset of an antimicrobial effect and its long-term duration.

A New Approach to Hybrid Nanocomposite Materials with Periodic Structures

2002 ◽  
Vol 124 (49) ◽  
pp. 14512-14513 ◽  
Author(s):  
Jiguang Zhang ◽  
Neil Coombs ◽  
Eugenia Kumacheva
Keyword(s):  
Periodic Structures ◽  
Nanocomposite Materials ◽  
Hybrid Nanocomposite ◽  
New Approach

Tunable dielectric constant of polyimide–barium titanate nanocomposite materials as the gate dielectrics for organic thin film transistor applications

RSC Advances ◽  
2014 ◽  
Vol 4 (107) ◽  
pp. 62132-62139 ◽  
Author(s):  
Yang-Yen Yu ◽  
Cheng-Liang Liu ◽  
Yung-Chih Chen ◽  
Yu-Cheng Chiu ◽  
Wen-Chang Chen
Keyword(s):  
Thin Film ◽  
Dielectric Constant ◽  
Thin Film Transistors ◽  
Gate Dielectrics ◽  
Thin Film Transistor ◽  
Nanocomposite Materials ◽  
Organic Thin Film Transistors ◽  
Hybrid Nanocomposite ◽  
Organic Thin Film ◽  
Organic Thin Film Transistor

Polyimide (PI)–BaTiO3 (BT) NPs hybrid nanocomposite dielectrics with tunable BT loadings (X) were fabricated for investigating their properties on the pentacene organic thin film transistors (OTFTs).

scholarly journals O USO DE MATERIAIS HIBRIDOS OU NANOCOMPÓSITOS COMO REVESTIMENTOS ANTICORROSIVOS DO AÇO

Química Nova ◽  
2021 ◽  
Author(s):  
Guilherme Clemente ◽  
Gustavo Gonçalves ◽  
Eduardo Nassar ◽  
Eduardo Molina ◽  
Lucas Rocha
Keyword(s):  
Hybrid Materials ◽  
Nanocomposite Materials ◽  
Exploratory Research ◽  
Metallic Surfaces ◽  
Metallic Material ◽  
Functional Loss ◽  
Anticorrosive Coatings ◽  
Different Types

THE USE OF HYBRID OR NANOCOMPOSITE MATERIALS AS STEEL ANTICORROSIVE COATINGS. The search had as the goal to present and reflect the hybrid materials as an alternative for anticorrosive coatings of metallic surfaces, such as steel. For comparison purposes, different types of anti-corrosion coatings capable of protecting metallic surfaces, such as steel, from oxidation action were presented. Steel is a metallic material widely used by industry in different types of segments, and its corrosion is a pathology responsible for its functional loss, causing losses in its use. Through a qualitative, bibliographic and exploratory research, based on academic works, it was presented that hybrid materials or nanocomposites prove to be efficient as anticorrosive coatings capable of protecting steel against oxidation.

Interfacial shear strength characterization of GMA-grafted UHMWPE fiber/epoxy/nano clay hybrid nanocomposite materials

RSC Advances ◽  
2016 ◽  
Vol 6 (48) ◽  
pp. 41793-41799 ◽  
Author(s):  
Mohammad Mohammadalipour ◽  
Mahmood Masoomi ◽  
Mojtaba Ahmadi ◽  
Somayeh Safi
Keyword(s):  
Glycidyl Methacrylate ◽  
Interfacial Shear Strength ◽  
Nanocomposite Materials ◽  
Interfacial Shear ◽  
Hybrid Nanocomposite ◽  
Uhmwpe Fiber ◽  
Nano Clay ◽  
Strength Characterization ◽  
Ultra High Molecular Weight

Interfacial properties of glycidyl methacrylate grafted ultra-high molecular weight polyethylene fibers and nano clay/epoxy resin were characterized by a microdroplet test.

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