Soil-resistant surfaces for traditional ceramics

Thomas Kronberg (Corresponding Author), Anne-Christine Ritschkoff, Riitta Mahlberg, Juha Mannila, Marke Kallio, Anne Vesa, Lena Hupa

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

Abstract

Increasing demands for better cleanability have led to development of functional coatings on traditional glaze surfaces. However, mechanical and chemical durability of these coatings are not yet fully understood. In this work a traditional white sanitaryware glaze was coated with both commercial fluoropolymers and new hybrid sol–gel functional coatings. Also the influence of a transparent double-glaze on the surface properties was tested. Surface energy, hydrophobic and oleophobic properties of the surfaces were determined by contact angle measurements. Mechanical properties were evaluated by applying the accelerated abrasion tests by means of Erichsen apparatus. Chemical durability was determined in acidic, neutral and basic solutions. Cleanability of the surfaces was studied by FTIR technique with oleic acid as soiling agent. Surface topology and surface analysis were determined by scanning electron microscope and confocal optical microscope. The improved anti-soiling property of the coatings was due to the increased hydrophobicity and oleophobicity. The mechanical durability of the sol–gel coatings was shown to be highly dependent on the increased number of ceramic components. The coatings have good chemical durability in acidic and neutral environments but rapidly fail in alkaline solutions.
Original languageEnglish
Pages (from-to)1775-1780
Number of pages6
JournalJournal of the European Ceramic Society
Volume27
Issue number2-3
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed
EventIX Conference & Exhibition of the European Ceramic Society - Portorož, Slovenia
Duration: 19 Jun 200523 Jun 2005

Fingerprint

Soils
Coatings
Glazes
Durability
Fluorine containing polymers
Oleic acid
Surface analysis
Oleic Acid
Hydrophobicity
Angle measurement
Interfacial energy
Abrasion
Contact angle
Surface properties
Microscopes
Electron microscopes
Topology
Scanning
Mechanical properties

Keywords

  • traditional ceramics
  • surfaces
  • mechanical properties
  • functional applications
  • coatings

Cite this

Kronberg, Thomas ; Ritschkoff, Anne-Christine ; Mahlberg, Riitta ; Mannila, Juha ; Kallio, Marke ; Vesa, Anne ; Hupa, Lena. / Soil-resistant surfaces for traditional ceramics. In: Journal of the European Ceramic Society. 2006 ; Vol. 27, No. 2-3. pp. 1775-1780.
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Soil-resistant surfaces for traditional ceramics. / Kronberg, Thomas (Corresponding Author); Ritschkoff, Anne-Christine; Mahlberg, Riitta; Mannila, Juha; Kallio, Marke; Vesa, Anne; Hupa, Lena.

In: Journal of the European Ceramic Society, Vol. 27, No. 2-3, 2006, p. 1775-1780.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Soil-resistant surfaces for traditional ceramics

AU - Kronberg, Thomas

AU - Ritschkoff, Anne-Christine

AU - Mahlberg, Riitta

AU - Mannila, Juha

AU - Kallio, Marke

AU - Vesa, Anne

AU - Hupa, Lena

PY - 2006

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AB - Increasing demands for better cleanability have led to development of functional coatings on traditional glaze surfaces. However, mechanical and chemical durability of these coatings are not yet fully understood. In this work a traditional white sanitaryware glaze was coated with both commercial fluoropolymers and new hybrid sol–gel functional coatings. Also the influence of a transparent double-glaze on the surface properties was tested. Surface energy, hydrophobic and oleophobic properties of the surfaces were determined by contact angle measurements. Mechanical properties were evaluated by applying the accelerated abrasion tests by means of Erichsen apparatus. Chemical durability was determined in acidic, neutral and basic solutions. Cleanability of the surfaces was studied by FTIR technique with oleic acid as soiling agent. Surface topology and surface analysis were determined by scanning electron microscope and confocal optical microscope. The improved anti-soiling property of the coatings was due to the increased hydrophobicity and oleophobicity. The mechanical durability of the sol–gel coatings was shown to be highly dependent on the increased number of ceramic components. The coatings have good chemical durability in acidic and neutral environments but rapidly fail in alkaline solutions.

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KW - functional applications

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