Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (577 KB)

Title: Weathering characteristics and moisture uptake properties of wood coated with water-borne sol-gel thin films

Author: Tshabalala, M. A.; Starr, C.; Sutherland, N. R.;

Date: 2010

Source: PRA's 7th International Woodcoatings Congress : "Reducing the environmental footprint", The Netherlands, 12-13 October 2010 congress papers [electronic resource]. Hampton : PRA Coatings Technology Centre, c2010 [1 CD-ROM]: 11 p.: ISBN: 9780956135728.

Publication Series: Miscellaneous Publication

Description: In this study, wood specimens were coated with water-borne silsesquioxane oligomers by an in situ sol-gel deposition process. The effect of these water-borne sol-gel thin films on weathering characteristics and moisture-uptake properties of the wood specimens were investigated. The weathering characteristics were investigated by exposure of the specimens to artificial weathering conditions in a Weather-Ometerâ„¢. Water vapor uptake properties were determined by equilibrating the specimens in controlled humidity chambers, and liquid water uptake properties were determined by immersing the specimens in water over a period of 28 days. After exposure to artificial weathering conditions, subtle differences were observed between the erosion patterns of the sol-gel-coated and the non-coated specimens. Compared with the noncoated controls, the sol-gel coated specimens showed lower weight losses. There were also differences in lightness, chromaticity, and color changes of the sol-gel coated compared with the non-coated specimen surfaces. Moisture-uptake properties of both coated and non-coated specimens were practically similar.

Keywords: Weathering, water-borne silsesquioxane oligomers, sol-gel thin films, coating systems, wood surfaces, wood deterioration, coatings, thin films, moisture, water repellents, wood moisture, weathering, color fading, Thuja plicata, western redcedar, stabilizing agents, photodegradation, accelerated life testing, humidity, sol-gel deposition, moisture content, resistance to decay, wood decay, durability, discoloration, photostabilizers, western redcedar, surface properties, accelerated testing, silsequioxane oligomers, exposure tests, surface properties, water vapor

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Tshabalala, M. A.; Starr, C.; Sutherland, N. R. 2010. Weathering characteristics and moisture uptake properties of wood coated with water-borne sol-gel thin films. In: PRA's 7th International Woodcoatings Congress : "Reducing the environmental footprint", The Netherlands, 12-13 October 2010 congress papers [electronic resource]. Hampton : PRA Coatings Technology Centre, c2010 [1 CD-ROM]: 11 p.: ISBN: 9780956135728.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.