Polymer icephobic surface by graphite coating and chemical grafting with diazonium salts

Idriss, H.; Guselnikova, Olga; Postnikov, Pavel; Kolská, Zdeňka; Haušild, Petr; Lyutakov, Oleksiy; Švorčı́k, Václav

doi:10.1016/j.surfin.2021.101226

Cited by 5 publications

(6 citation statements)

References 19 publications

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“…From an icephobic perspective, a water droplet that can slide away from a surface at a very low SA is of interest as the chances that it freezes on the surface before being shed out are minimized. Unfortunately, the sliding angle is generally provided at room temperature as part of a wettability characterization, even for icephobic materials [ 84 , 85 ].…”

Section: What Is An Icephobic Surface?mentioning

confidence: 99%

On the Durability of Icephobic Coatings: A Review

Nistal,

Sierra-Martín,

Fernández-Barbero

2023

Materials

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Ice formation and accumulation on surfaces has a negative impact in many different sectors and can even represent a potential danger. In this review, the latest advances and trends in icephobic coatings focusing on the importance of their durability are discussed, in an attempt to pave the roadmap from the lab to engineering applications. An icephobic material is expected to lower the ice adhesion strength, delay freezing time or temperature, promote the bouncing of a supercooled drop at subzero temperatures and/or reduce the ice accretion rate. To better understand what is more important for specific icing conditions, the different types of ice that can be formed in nature are summarized. Similarly, the alternative methods to evaluate the durability are reviewed, as this is key to properly selecting the method and parameters to ensure the coating is durable enough for a given application. Finally, the different types of icephobic surfaces available to date are considered, highlighting the strategies to enhance their durability, as this is the factor limiting the commercial applicability of icephobic coatings.

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Section: What Is An Icephobic Surface?mentioning

confidence: 99%

On the Durability of Icephobic Coatings: A Review

Nistal,

Sierra-Martín,

Fernández-Barbero

2023

Materials

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“…chemická aktivace povrchů pomocí tzv. Piranha roztoků 54 a/nebo roubování různých chemických látek a tím nových funkčních skupin na povrchy substrátů 40,[49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67] , roubování kovových nanočástic 40,[68][69][70] ; (c) fyzikálně-chemické depozice napařování či naprašování kovových 37,43,68,[71][72][73][74] či uhlíkových nanostruktur a nanovrstev 75,76 ; (d) jejich kombinace, kdy v prvním kroku dochází k tzv. aktivaci povrchu (fyzikálně, chemicky) a následnému chemickému roubování.…”

Section: Přípravy Nanostrukturovaných Povrchůunclassified

“…Pro studium chemie povrchu materiálů se využívají zejména různé spektroskopické metody, nejčastěji fotoelektronová mikroskopie (XPS) 37-76 , infračervená spektroskopie s Fourierovou transformací (FTIR) 64,67,68 , Ramanova spektroskopie 65,66,74,76 . Pro studium drsnosti a morfologie povrchu nám slouží řada mikroskopických metod, jako mikroskopie atomárních sil (AFM) [37][38][39][42][43][44][45][46][47][48][49][50][51]53,[56][57][58][59][60][61][62]64,66,[68][69][70][71][72][73]74,76 , konfokální mikroskopie 43 , skenovací elektronová mikroskopie (SEM) 46,[48][49][50][51][52][54][55][56]…”

Section: Charakterizace Nanostrukturovaných Povrchůunclassified

“…Velikost kovových klastrů, jejich mřížkové parametry a chemie jsou často studovány rentgenovou difrakční analýzou (XRD) 53,60,68,71 , tvrdost a adheze tenkých nanovrstev nebo nanostruktur na substrátech pak pomocí nanoindentačních technik 64,68,71,73 . U povrchově modifikovaných vzorků bývají studovány i mechanické 52,55,64 , případně magnetické vlastnosti 61 . Mohou být určovány i změny teplot fázových přechodů pomocí kalorimetrie 53 .…”

Section: Charakterizace Nanostrukturovaných Povrchůunclassified

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For What Am I Grateful to the University of Chemical Technology in Prague? 35 Years of Cooperation in the Field of Estimation Methods and Preparation and Characterization of Nanostructured Materials

Kolská¹

2022

Chem. Listy

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In this short writing I tried to describe my all-life positive experience with the University of Chemical Technology (UCT) Prague, starting from the student age till now, my adult age. At UCT, I met many amazing people not only when I was a student but especially as a researcher and an academic person. I am very grateful for all collaborations with them: firstly in the field of estimation of various physico-chemical properties of chemical compounds, which lasted for 20 years, and then in the field of preparation and characterization of nanostructured materials for many applications which has been continuing last 15 years.

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“…The mechanical properties of four types of solid samples were determined: a pristine one and ones with 15% of grafted AgNPs after being soaked in deionized water for 1 week and 1 month (to understand the effect of Ag ions release on mechanical properties of the material). Nanoindentation tests were carried out using an NHT2 tester (Anton Paar, Graz, Austria) equipped with a Berkovich diamond indentor using instrumented indentation technique [18]. The maximum load was P max = 50 mN, the loading and unloading time was 30 s, the hold period at the maximum load was 10 s. The acquired data (force-depth of penetration data record) were evaluated to obtain hardness HIT and plane strain elastic modulus E* according to the ISO 14577 standard by the Oliver-Pharr method [19].…”

Section: Physical and Chemical Characterizationmentioning

confidence: 99%

Printable Resin Modified by Grafted Silver Nanoparticles for Preparation of Antifouling Microstructures with Antibacterial Effect

et al. 2021

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The usage of three-dimensional (3D) printed materials in many bioapplications has been one of the fastest-growing sectors in the nanobiomaterial industry in the last couple of years. In this work, we present a chemical approach for grafting silver nanoparticles (AgNPs) into a resin matrix, which is convenient for 3D printing. In this way, the samples can be prepared and are able to release silver ions (Ag+) with excellent antibacterial effect against bacterial strains of E. coli and S. epidermidis. By the proposed process, the AgNPs are perfectly mixed and involved in the polymerization process and their distribution in the matrix is homogenous. It was also demonstrated that this approach does not affect the printing resolution and the resin is therefore suitable for the construction of microstructures enabling controlled silver ion release and antifouling properties. At the same time the physical properties of the material, such as viscosity and elasticity modulus are preserved. The described approach can be used for the fabrication of facile, low-cost 3D printed resin with antifouling-antibacterial properties with the possibility to control the release of Ag+ through microstructuring.

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Polymer icephobic surface by graphite coating and chemical grafting with diazonium salts

Cited by 5 publications

References 19 publications

On the Durability of Icephobic Coatings: A Review

On the Durability of Icephobic Coatings: A Review

For What Am I Grateful to the University of Chemical Technology in Prague? 35 Years of Cooperation in the Field of Estimation Methods and Preparation and Characterization of Nanostructured Materials

Printable Resin Modified by Grafted Silver Nanoparticles for Preparation of Antifouling Microstructures with Antibacterial Effect

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