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Liquefied-Wood-Based Polyurethane–Nanosilica Hybrid Coatings and Hydrophobization by Self-Assembled Monolayers of Orthotrichlorosilane (OTS)
Czech Technical University in Prague, Czech Republic.ORCID iD: 0000-0001-6940-3850
University of Ljubljana, Slovenia.
University of Ljubljana, Slovenia.
University of Ljubljana, Slovenia.
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2015 (English)In: ACS Sustainable Chemistry & Engineering, ISSN 2168-0485, Vol. 3, no 10, 2533-2541 p.Article in journal (Refereed) Published
Abstract [en]

We have produced hybrid liquefied-wood-based polyurethane (LW-PU) and LW-PU/nanosilica hybrid coatings for wood substrates. The prepared hybrid polyurethane coatings were hydrophobized by self-assembled monolayers of orthotrichlorosilane (OTS) via a sol–gel dipping process. The nanosilica addition into the LW-PU system enhanced the physical properties of coatings like surface hardness and stability toward cold liquids. The OTS hydrophobized coatings were characterized by Fourier transforms infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and thermogravimetric analysis (TGA). The surface became hydrophobic as the contact angle (CA) for the water droplet on a modified hybrid coating was ∼115° and very stable. The FTIR, SEM, and EDS analysis confirmed the formation of OTS monolayers on hybrid coatings.

Place, publisher, year, edition, pages
USA: American Chemical Society (ACS), 2015. Vol. 3, no 10, 2533-2541 p.
Keyword [en]
Liquefied Wood, Polyurethane, Hydrophobisation
National Category
Polymer Technologies
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-64035DOI: 10.1021/acssuschemeng.5b00723OAI: oai:DiVA.org:lnu-64035DiVA: diva2:1097023
Available from: 2017-05-21 Created: 2017-05-21 Last updated: 2017-09-05Bibliographically approved

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Kumar, Anuj
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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