Functional Polymer Coating

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (25 November 2023) | Viewed by 3280

Special Issue Editor

Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science &Technology, Xi’an 710021, China
Interests: functional modification; tribological composites; functional coating; self-healing
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymer coating is a very important functional material in economic development and national defense security. Its structure and function have the advantages of strong designability and stable overall performance. Therefore, the development and preparation of functional polymer coatings are of great significance to the development of composite materials. With the development of science and technology, more requirements have been put forward regarding the properties of composite materials: in addition to good mechanical properties, they must also exhibit excellent thermal conductivity, electrical conductivity, and electromagnetic shielding performance and other functional characteristics. They should also offer coating decoration, protection functions (such as anticorrosion, fire prevention, anti-aging, etc.), or new functions such as wave absorption, drag reduction, radiation protection, etc. 

The purpose of this Special Issue is to collect the research results of various functional polymer coatings, as well as different process research methods. You are welcome to contribute a wide variety of research findings in the form of newsletter articles, full-text results, and reviews.

Dr. Chao Liu
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

11 pages, 4367 KiB  
Article
Antioxidation Effect of Graphene Oxide on Silver Nanoparticles and Its Use in Antibacterial Applications
by Hua Jin, Mengyao Cai and Fuquan Deng
Polymers 2023, 15(14), 3045; https://doi.org/10.3390/polym15143045 - 14 Jul 2023
Cited by 5 | Viewed by 1319
Abstract
Silver nanoparticles (AgNPs) have drawn great attention due to their outstanding antibacterial effect in a wide range of applications, such as biomass packaging materials, wound dressings, flexible sensors, etc. However, the oxidation of AgNPs limits the antibacterial effect. Firstly, the effects of pretreatment [...] Read more.
Silver nanoparticles (AgNPs) have drawn great attention due to their outstanding antibacterial effect in a wide range of applications, such as biomass packaging materials, wound dressings, flexible sensors, etc. However, the oxidation of AgNPs limits the antibacterial effect. Firstly, the effects of pretreatment methods on the antibacterial property of AgNPs were investigated by the shake flask method and agar diffusion plate method. Secondly, graphene oxide/silver nanoparticle (GO/AgNPs) nanocomposite prepared by an in-situ growth method was used as antibacterial filler for polyacrylate emulsion via a blending method. The antibacterial mechanism of GO/AgNPs was revealed by comparing the actual contents of oxygen with the theoretically calculated contents of oxygen. Finally, the polyacrylate/graphene oxide/silver nanoparticles (PA/GO/AgNPs) composite emulsion was applied onto a leather surface using a layer-by-layer spraying method to improve the leather’s antibacterial properties. The results showed that ultraviolet irradiation could better maintain the antibacterial property of AgNPs, while GO could improve the dispersibility of AgNPs and prevent their oxidation. The leather finished with the PA/GO/AgNPs-2 wt% composite emulsion showed the highest bacteriostatic rate of 74%, demonstrating its great potential in the application of antibacterial leather products. Full article
(This article belongs to the Special Issue Functional Polymer Coating)
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12 pages, 3875 KiB  
Article
Preparation of Superhydrophobic Materials and Establishment of Anticorrosive Coatings on the Tinplate Substrate by Alkylation of Graphene Oxide
by Jiangdong Gu, Qiufeng An, Jialong Li, Ping Ge, Yanyan Wu and Yihan Li
Polymers 2023, 15(5), 1280; https://doi.org/10.3390/polym15051280 - 3 Mar 2023
Cited by 3 | Viewed by 1614
Abstract
Corrosion of structural parts not only reduces the service life of the equipment but also causes safety accidents, so building a long-lasting anti-corrosion coating on its surface is the key to solving this problem. Under the action of alkali catalysis, n-octyltriethoxysilane (OTES), dimethyldimethoxysilane [...] Read more.
Corrosion of structural parts not only reduces the service life of the equipment but also causes safety accidents, so building a long-lasting anti-corrosion coating on its surface is the key to solving this problem. Under the action of alkali catalysis, n-octyltriethoxysilane (OTES), dimethyldimethoxysilane (DMDMS), and perfluorodecyltrimethoxysilane (FTMS) hydrolyzed and polycondensed co-modified graphene oxide (GO), modified to synthesize a self-cleaning superhydrophobic material fluorosilane-modified graphene oxide (FGO). The structure, film morphology, and properties of FGO were systematically characterized. The results showed that the newly synthesized FGO was successfully modified by long-chain fluorocarbon groups and silanes. FGO presented an uneven and rough morphology on the substrate surface, the water contact angle was 151.3°, and the rolling angle was 3.9°, which caused the coating to exhibit excellent self-cleaning function. Meanwhile, the epoxy polymer/fluorosilane-modified graphene oxide (E-FGO) composite coating adhered to the carbon structural steel’s surface, and its corrosion resistance was detected by the Tafel curve and EIS impedance. It was found that the current density of the 10 wt% E-FGO coating (Icorr) was the lowest (1.087 × 10−10 A/cm2), which was approximately 3 orders of magnitude lower than that of the unmodified epoxy coating. This was primarily due to the introduction of FGO, which formed a continuous physical barrier in the composite coating and gave the composite coating excellent hydrophobicity. This method might provide new ideas for advances in steel corrosion resistance in the marine sector. Full article
(This article belongs to the Special Issue Functional Polymer Coating)
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