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Ageing of modified wood. Part 2: Determination of surface composition of acetylated, furfurylated, and thermally modified wood by XPS and ToF-SIMS
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Lars Elof Bryne
Veröffentlicht/Copyright:
18. Februar 2010
Abstract
The main objective of this work was to study the chemical composition of surfaces and ageing effects on acetylated pine (Pinus sylvestris), heat treated spruce (Picea abies), and furfurylated radiata pine (Pinus radiata) in comparison to unmodified wood. X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were the instruments of choice. Observation with a low-vacuum scanning electron microscope (LV-SEM) complemented the study. The spectroscopic information was also linked to a parallel wettability study on matched wood samples by the Wilhelmy method. The results show that XPS and ToF-SIMS are two powerful tools that in combination give complementary information, both quantitative and qualitative, and are well suited for observation of the ageing process of different wood surfaces. The hydrophobization process as a result of migration of extractives during ageing was well quantified by the XPS measurements and the results correlated well with wetting results. Several specific hydrophobic substances could be identified by ToF-SIMS measurements.
Keywords: acetylation; electron spectroscopy for chemical analysis (ESCA); furfurylation; heat treatment; modified wood; surface chemical composition; time-of-flight secondary ion mass spectrometry (ToF-SIMS); X-ray photoelectron spectroscopy (XPS)
Received: 2008-4-25
Accepted: 2010-1-5
Published Online: 2010-02-18
Published Online: 2010-02-18
Published in Print: 2010-04-01
©2010 by Walter de Gruyter Berlin New York
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Artikel in diesem Heft
- Original Papers
- Interaction of dissolved and colloidal material during the mixing of different pulps
- Liquefaction behavior of Western red cedar and Japanese beech in the ionic liquid 1-ethyl-3-methylimidazolium chloride
- Ageing of modified wood. Part 1: Wetting properties of acetylated, furfurylated, and thermally modified wood
- Ageing of modified wood. Part 2: Determination of surface composition of acetylated, furfurylated, and thermally modified wood by XPS and ToF-SIMS
- Water sorption in wood and modified wood at high values of relative humidity. Part I: Results for untreated, acetylated, and furfurylated Norway spruce
- Water sorption in wood and modified wood at high values of relative humidity. Part 2: Appendix. Theoretical assessment of the amount of capillary water in wood microvoids
- Electron spectroscopy on plasma treated lignin and cellulose
- Tensile shear strength of UF- and MUF-bonded veneer related to data of adhesives and cell walls measured by nanoindentation
- Characterizing macro-voids of uncompressed mats and finished particleboard panels using response surface methodology and X-ray CT
- Mixed mode fracture testing of adhesively bonded wood specimens using a dual actuator load frame
- Application of non-symmetrical drying tests for assessment of drying behaviour of ntholo (Pseudolachnostylis maprounaefolia PAX)
- Automated measurement of vessel properties in birch and poplar wood
- Degradation of wood veneers by Fenton's reagents: Effects of wood constituents and low molecular weight phenolic compounds on hydrogen peroxide decomposition and wood tensile strength loss
- Growth of ZnO nanofilms on wood with improved photostability
- Termite-resistant heartwood. Effect of antioxidants on termite feeding deterrence and mortality
- Biological performance of copper azole-treated wood and wood-based composites
- Short Notes
- Kraft pulping of wood treated with carbon-based preservatives
- Decay resistance of wood treated with fluorinated waterproofing agents
- Meetings
- Meetings
Artikel in diesem Heft
- Original Papers
- Interaction of dissolved and colloidal material during the mixing of different pulps
- Liquefaction behavior of Western red cedar and Japanese beech in the ionic liquid 1-ethyl-3-methylimidazolium chloride
- Ageing of modified wood. Part 1: Wetting properties of acetylated, furfurylated, and thermally modified wood
- Ageing of modified wood. Part 2: Determination of surface composition of acetylated, furfurylated, and thermally modified wood by XPS and ToF-SIMS
- Water sorption in wood and modified wood at high values of relative humidity. Part I: Results for untreated, acetylated, and furfurylated Norway spruce
- Water sorption in wood and modified wood at high values of relative humidity. Part 2: Appendix. Theoretical assessment of the amount of capillary water in wood microvoids
- Electron spectroscopy on plasma treated lignin and cellulose
- Tensile shear strength of UF- and MUF-bonded veneer related to data of adhesives and cell walls measured by nanoindentation
- Characterizing macro-voids of uncompressed mats and finished particleboard panels using response surface methodology and X-ray CT
- Mixed mode fracture testing of adhesively bonded wood specimens using a dual actuator load frame
- Application of non-symmetrical drying tests for assessment of drying behaviour of ntholo (Pseudolachnostylis maprounaefolia PAX)
- Automated measurement of vessel properties in birch and poplar wood
- Degradation of wood veneers by Fenton's reagents: Effects of wood constituents and low molecular weight phenolic compounds on hydrogen peroxide decomposition and wood tensile strength loss
- Growth of ZnO nanofilms on wood with improved photostability
- Termite-resistant heartwood. Effect of antioxidants on termite feeding deterrence and mortality
- Biological performance of copper azole-treated wood and wood-based composites
- Short Notes
- Kraft pulping of wood treated with carbon-based preservatives
- Decay resistance of wood treated with fluorinated waterproofing agents
- Meetings
- Meetings
