Rheological and antimicrobial properties of epoxy-based hybrid nanocoatings

Islam, Muhammad Remanul; Parimalam, M.; Sumdani, M. G.; Taher, Md Abu; Asyadi, Fahmi; Tong, Woei Yenn

doi:10.1016/j.polymertesting.2019.106202

Cited by 19 publications

(9 citation statements)

References 47 publications

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“…Two processes can be used in commercial polyurethane synthesis: one-shot and prepolymer. As indicated by Schollenberger, both methods have unique applications; one shot synthesis tends to be cheaper to manufacture and is commonly used to produce thermosetting polymers, whereas prepolymer synthesis allows for better control of block segmentation and molecular weight but is more complex. , Recent research has explored methods to create solvent free, − bioderived, − isocyanate free, or functionalized ,,,,− polyurethanes that impart antimicrobial, − antifungal, and color fixing character. Indeed, the nature of polyurethane’s chemistry enables the introduction of functional blocks so long as they have ester or ether end groups.…”

Section: Coating Chemistrymentioning

confidence: 99%

“…Cross-linking can occur via the epoxy (for low and high molecular weight epoxies) or the hydroxyl (for higher molecular weight epoxy resins only), with the curing agents being selected based on the specific properties needed for the intended application. , This unique ability of epoxies to react with various curing agents ranging in chemistry from aliphatic amines to polymercaptans to anhydride terminated moieties gives epoxy resins their versatility. As with polyurethanes, epoxies can be further modified with various chemical groups, such as siloxanes, , phenolics, , metal nanoparticles, and quaternary ammonium compounds to achieve distinct functions, including nonfouling coatings ,, and antimicrobial coatings. ,,,, With these new advancements in epoxy resin technology, there emerge new opportunities to focus these technologies on the food industry, especially in nonfood contact surfaces.…”

Section: Coating Chemistrymentioning

confidence: 99%

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Advances in Nonfouling and Antimicrobial Coatings: Perspectives for the Food Industry

Rudlong

Koga

Goddard

2022

ACS Food Sci. Technol.

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Microbial cross-contamination represents a significant burden to public health and food wasted due to microbial spoilage. Despite established protocols for cleaning and sanitizing surfaces and advances in antimicrobial and nonfouling coatings research, the persistence of pathogenic and spoilage microorganisms remains a challenge in food manufacturing. Specifically, the design and application of antimicrobial and nonfouling coatings in nonfood contact regions of food manufacturing facilities remain an area of research need as these regions are known microbial growth niches. In this review, we survey the state-of-the-art antimicrobial and nonfouling technologies compatible with polyurethane and epoxy coatings suitable for Zone 2/3 regions, such as drain ditches and equipment framework. The properties of polyurethane and epoxy coatings are discussed, followed by a detailed survey of antimicrobial and nonfouling compounds suitable for incorporation into polyurethane and epoxy polymerization chemistries. Challenges and opportunities in the application of antimicrobial and nonfouling coatings to Zones 2/3 are discussed, with an emphasis placed on the design of effective application studies.

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Section: Coating Chemistrymentioning

confidence: 99%

Section: Coating Chemistrymentioning

confidence: 99%

Advances in Nonfouling and Antimicrobial Coatings: Perspectives for the Food Industry

Rudlong

Koga

Goddard

2022

ACS Food Sci. Technol.

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“…Metal, metal oxide, or silica nanoparticles are usually dispersed into the epoxy, and then the resin is hardened to achieve films or bulk samples [ 37 ]. To improve the compatibilization with the epoxy matrix, the metal nanoparticles are often functionalized.…”

Section: Enhancement Of Antimicrobial Properties Via Nanomodification Of Epoxiesmentioning

confidence: 99%

Improving the Antimicrobial and Mechanical Properties of Epoxy Resins via Nanomodification: An Overview

et al. 2021

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The main purpose of this work is to provide a comprehensive overview on the preparation of multifunctional epoxies, with improved antimicrobial activity and enhanced mechanical properties through nanomodification. In the first section, we focus on the approaches to achieve antimicrobial activity, as well as on the methods used to evaluate their efficacy against bacteria and fungi. Relevant application examples are also discussed, with particular reference to antifouling and anticorrosion coatings for marine environments, dental applications, antimicrobial fibers and fabrics, and others. Subsequently, we discuss the mechanical behaviors of nanomodified epoxies with improved antimicrobial properties, analyzing the typical damage mechanisms leading to the significant toughening effect of nanomodification. Some examples of mechanical properties of nanomodified polymers are provided. Eventually, the possibility of achieving, at the same time, antimicrobial and mechanical improvement capabilities by nanomodification with nanoclay is discussed, with reference to both nanomodified epoxies and glass/epoxy composite laminates. According to the literature, a nanomodified epoxy can successfully exhibit antibacterial properties, while increasing its fracture toughness, even though its tensile strength may decrease. As for laminates—obtaining antibacterial properties is not followed by improved interlaminar properties.

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“…Generally, very less amount of dopant (less than 1 dopant per polymer unit) is required for oxidation of monomers and polymers. [21,22] The amount of dopant is regulated by how polarons can be positioned tightly along the polymer chain. Polypyrrole (PPy), polyaniline (PANI), and polythiophene (PT) and PT derivatives, poly(3,-4-ethylenedioxythiophene) (PEDOT), are the most widely researched polymers for application in ESSs, including supercapacitors and batteries.…”

Section: Introductionmentioning

confidence: 99%

Recent advancements in synthesis, properties, and applications of conductive polymers for electrochemical energy storage devices: A review

Sumdani

Islam

Yahaya

et al. 2021

Polymer Engineering & Sci

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Conductive polymer (CP) research has exploded in popularity over the years, with applications ranging from nanoelectronics to material science. CPs are, for all sorts of purposes, Nobel Prize-winning compounds, as their inventors received the Nobel Prize in Chemistry in 2000. Conducting polymers have sparked a lot of interest in academic and industrial sectors because they combine the electrical characteristics of semiconductors and metals with the typical benefits of ordinary polymers, such as ease of preparation and low cost production. Conducting polymers have also received a lot of attention because of their unique characteristics, which include customizable electrical properties, excellent optical and mechanical capabilities, ease of synthesis and manufacturing, and superior environmental durability to traditional inorganic materials. In this study, the molecular structures and behaviors of the most common forms of CPs, namely, polyacetylene, polyaniline, polypyrrole, and polythiophene and derivatives of polythiophene are discussed. The transport phenomenon that allow to understand the conduction process, are also described in this review. An in-depth investigation of conducting polymerbased binary, ternary, and quaternary composites with carbon-based materials, metal oxides, transition metals, and inorganic particles is utilized to analyze their applications as supercapacitors and batteries. There are also explanations of recent advancements in their applications in the areas of energy storage systems including batteries and supercapacitors. The development of their applications in the energy storage devices such as supercapacitors, lithium, and other -ions batteries, as well as their current issues and future prospect to advance energy storage systems are broadly discussed. This review is intended to contribute to a better understanding of this conducting polymer and, as a result, to the development of new research areas.

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Rheological and antimicrobial properties of epoxy-based hybrid nanocoatings

Cited by 19 publications

References 47 publications

Advances in Nonfouling and Antimicrobial Coatings: Perspectives for the Food Industry

Advances in Nonfouling and Antimicrobial Coatings: Perspectives for the Food Industry

Improving the Antimicrobial and Mechanical Properties of Epoxy Resins via Nanomodification: An Overview

Recent advancements in synthesis, properties, and applications of conductive polymers for electrochemical energy storage devices: A review

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