Sol–gel coating of cellulose fibres with antimicrobial and repellent properties

Tomšič, Brigita; Simončić, Barbara; Orel, B.; Černe, Lidija; Tavčer, Petra Forte; Zorko, Milena; Jerman, Ivan; Vilčnik, Aljaž; Kovač, Janez

doi:10.1007/s10971-008-1732-1

Cited by 166 publications

(44 citation statements)

References 40 publications

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“…10 In addition to extremely non-wettability, superamphiphobic surfaces also exhibit antibacterial activity. [76][77][78] Vilčnik et al 76,77 investigated the antibacterial properties of hydrophobicoleophobic sol-gel coatings for cotton fabrics by using Escherichia coli bacteria as a model, and found that 15 superamphiphobic surfaces exhibited a long lasting antibacterial effect without the addition of any antibacterial agents. Antibacterial activity test revealed that the reduction of the bacteria on superamphiphobic cotton fabrics was nearly 100%.…”

Section: Anti-freezingmentioning

confidence: 99%

Superamphiphobic surfaces

2014

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Superamphiphobicity is an effect where surface roughness and surface chemistry combine to generate surfaces which are both superhydrophobic and superoleophobic, i.e., contact angles (yCA) greater than 1501 along with low contact angle hysteresis (CAH) not only towards probing water but also for low-surface-tension 'oils'. In this review, we summarize the research on superamphiphobic surfaces, including the characterization of superamphiphobicity, different techniques towards the fabrication of surface roughness and surface modification with low-surface-energy materials as well as their functional applications. Superamphiphobicity is an effect where surface roughness and surface chemistry combine to generate 5 surfaces which are both superhydrophobic and superoleophobic, i.e., contact angles ( CA ) greater than 150° along with low contact angle hysteresis (CAH) not only towards probing water but also for lowsurface-tension 'oils'. In this tutorial review, we summarize the research on superamphiphobic surfaces, including the characterization of superamphiphobicity, different techniques towards the fabrication of surface roughness and surface modification with low-surface-energy materials as well as their functional 10 applications.

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Section: Anti-freezingmentioning

confidence: 99%

Superamphiphobic surfaces

2014

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“…38 By wet chemical application on textile substrates with different perfluorinated recipes in different approaches even contact angles of water in the range of 150° to 160° are reported. [40][41][42] These applications are based on perfluorinated polysiloxanes, fluorinated acrylic lattices and perfluoroalkylacrylate compounds combined with silica nanoparticles. [40][41][42] With different plasma deposition techniques also contact angles of water in the range of 150° to 170° are reached on textile substrates.…”

Section: Hydrophobic Propertiesmentioning

confidence: 99%

“…[40][41][42] These applications are based on perfluorinated polysiloxanes, fluorinated acrylic lattices and perfluoroalkylacrylate compounds combined with silica nanoparticles. [40][41][42] With different plasma deposition techniques also contact angles of water in the range of 150° to 170° are reached on textile substrates. 43,44 In this technique the type of monomer used for plasma deposition is significant for the gained hydrophobic effect.…”

Section: Hydrophobic Propertiesmentioning

confidence: 99%

A Natural Based Method for Hydrophobic Treatment of Natural Fiber Material

Kick

Grethe

Mahltig

2017

ACSi

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A treatment for hydrophobic functionalization of natural fiber materials is developed. This hydrophobic treatment is based mainly on natural products. As hydrophobic component the natural Tung Oil is used, which is originally a compound used for wood conservation purposes. The application on textile is done in a padding process under presence of an oxidative agent. For the current investigations a fiber felt from linen was used. The hydrophobic effect is determined by the concentration of Tung Oil and the duration of a thermal drying process. The hydrophobic effect is investigated by capillary rise tests and contact angle measurements. Scanning electron microscopy SEM is used to investigate the surface topography of the fiber material and the deposited hydrophobic material. Altogether, an interesting and promising method for hydrophobisation of natural fibers is developed, which could especially be used as part of a production process of a fiber reinforced composite material, mainly based on natural products.

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“…In contrast to peruoroalkyltrialkoxysilanes, alkyltrialkoxysilanes cannot provide the oleophobicity of the coating [13,19,40,41]. A low surface energy alkyl-and peruoroalkyl-functionalised coating has been reported to be able to induce additional functional properties, e.g., passive antibacterial activity of the coated bres due to the lowered adhesion of bacteria [13,15,42] and improved anti-icing/de-icing properties of the coated fabric [43] (i.e., the icephobicity because of the low solid-ice adhesion and low shear strength of ice) [44]. [40] and 1H, 1H, 2H, 2H-per uorooctyltriethoxysilane (B) [40] e use of precursors with longer per uoroalkyl groups also has an important disadvantage.…”

Section: Water and Oil Repellencymentioning

confidence: 99%