Microstructure and cleanability of uncoated and fluoropolymer, zirconia and titania coated ceramic glazed surfaces

Kuisma, Risto; Fröberg, Linda; Kymäläinen, Hanna‐Riitta; Pesonen-Leinonen, E.; Piispanen, Minna; Melamies, Pauliina; Hautala, M.; Sjöberg, Anna‐Maija; Hupa, Leena

doi:10.1016/j.jeurceramsoc.2006.02.035

Cited by 46 publications

(49 citation statements)

References 21 publications

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“…Physico-chemical processes at interfaces created at different stages of fouling and cleaning may be important (Jensen et al, 2007 ;Detry et al, 2009a;Blel et al, 2010). Under this respect, typical examples are fouling with particles (Määttä et al, 2011;Detry et al, 2011;Pesonen-Leinonen et al, 2006a;2006b;Kuisma et al, 2007) and with a continuous layer of more or less complex composition (Mauermann et al, 2009;Piispanen et al, 2011), but these two situations differ according to the influence of the substrate surface properties on drying and cleaning. The interactions between the substrate and particulate contaminants need to be better understood in order to reduce equipment fouling, to improve the efficiency of cleaning and disinfection, or to develop easy-to-clean surfaces (Podczeck, 1999).…”

Section: Introductionmentioning

confidence: 99%

Conditioning materials with biomacromolecules: Composition of the adlayer and influence on cleanability

Toure

Genet

Dupont‐Gillain

et al. 2014

Journal of Colloid and Interface Science

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AbbreviationsBSA: bovine serum albumin RFC: radial flow cell XPS: X-ray photoelectron spectroscopy 2 ABSTRACTThe influence of substrate hydrophobicity and biomacromolecules (dextran, bovine serum albumin -BSA) adsorption on the cleanability of surfaces soiled by spraying aqueous suspensions of quartz particles (10 to 30 µm size), then dried, was investigated using glass and polystyrene as substrates. The cleanability was evaluated using radial flow cell (RFC).The surface composition was determined by X-ray photoelectron spectroscopy (XPS). The interpretation of XPS data allowed the complexity due to the ubiquitous presence of organic contaminants to be coped with, and the surface composition to be expressed in terms of both the amount of adlayer and the mass concentration of adlayer constituents.When soiled with a suspension of particles in water, glass was much less cleanable than polystyrene, which was attributed to its much lower water contact angle, in agreement with previous observations on starch soil. Dextran was easily desorbed and did not affect the cleanability. The presence of BSA at the interface strongly improved the cleanability of glass while the contact angle did not change appreciably. In contrast, soiling polystyrene with quartz particles suspended in a BSA solution instead of water did not change markedly the cleanability, while the contact angle was much lower and the aggregates of soiling particles were more flat. These observations are explained by the major role of capillary forces developed upon drying, which influence the closeness of the contact between the soiling particles and the substrate and, thereby, the adherence of particles. The capillary forces are proportional to the liquid surface tension and depend in a more complex way on contact angles of the particles and of the substrate. The dependence of cleanability on capillary forces, and in particular on the liquid surface tension, is predominant as compared with its dependence on the size and shape of the soiling aggregates, which influence the efficiency of shear forces exerted by the flowing water upon cleaning.

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Section: Introductionmentioning

confidence: 99%

Conditioning materials with biomacromolecules: Composition of the adlayer and influence on cleanability

Toure

Genet

Dupont‐Gillain

et al. 2014

Journal of Colloid and Interface Science

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“…This porosity appears during the polishing phase, where about 0.5-1 mm of the superficial layer is removed, causing a superficial microporosity that increases the tendency to the product dirtiness. There are many ways of intervention (some of them have already been widely adopted) as for exemplum using transparent polymeric layers, however the mechanical properties and chemical durability of these coatings are often very poor [5].…”

Section: Introductionmentioning

confidence: 99%

“…by investigating different surface structures. Some models of selfcleaning surfaces are available in nature, such as lotus plant leaves [5] and the wings of insects [6]. Recently to improve surface cleanability properties [7][8][9] the photocatalicity of TiO 2 nanoparticles has been used.…”

Section: Introductionmentioning

confidence: 99%

Functionalization of ceramic tile surface by sol–gel technique

Bondioli

Taurino

Ferrari

2009

Journal of Colloid and Interface Science

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“…Similarly, siloxane branches of a polydimethylsiloxane-grafted polymer can enhance hydrophobic property [4]. A fluoropolymer has also been utilized to coat glazed tiles to enhance water repellency and to reduce soil attachment, thus providing a better cleanability [5]. Environmental friendly, solvent-free hybrid organic-inorganic methacrylic-based coatings have been introduced with a performance in terms of hydrophobicity and color change comparable to those of the commercial products [6].…”

Section: Introductionmentioning

confidence: 99%

Transparent superhydrophobic coating application to the interlocking clay block for the microbial growth mitigation

Nimittrakoolchai

Suwan

Supothina

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract.Interlocking clay block is of widespread use in many countries due to its less laborintensive design. The block comprises of considerable amount of pore structures; therefore water can easily penetrate into it causing deterioration by natural weathering as well as the growth of microbes on its surface. In this present work, a transparent, superhydrophobic coating was applied onto the block"s surface to prevent water absorption. The coating which is a poly(methyl hydrogensiloxane) base containing fumed SiO 2 nanoparticle was designed to possess surface topographic feature similar to that of the lotus leaf. After coating the block with the superhydrophobic compound, its water absorption decreased from 11.5 to 4.8% and porosity substantially decreased from 22.5 to 9.2%, while bulk and apparent densities did not change. Accelerated weathering test revealed that the coating had good stability. The coated samples exhibited growth inhibition of algae.

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Microstructure and cleanability of uncoated and fluoropolymer, zirconia and titania coated ceramic glazed surfaces

Cited by 46 publications

References 21 publications

Conditioning materials with biomacromolecules: Composition of the adlayer and influence on cleanability

Conditioning materials with biomacromolecules: Composition of the adlayer and influence on cleanability

Functionalization of ceramic tile surface by sol–gel technique

Transparent superhydrophobic coating application to the interlocking clay block for the microbial growth mitigation

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