Decay resistance of wood treated with amino-silicone compounds
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Abstract
An amino-silicone (AS; amino-polydimethylsiloxane) micro-emulsion was tested for its suitability to preserve wood against basidiomycetes in a mini-block experiment and in a test according to the European standard (1996) EN 113. Decay resistance was assessed against the white rot fungi Trametes versicolor, Ceriporiopsis subvermispora, and Hypoxylon fragiforme, as well as the brown rot fungi Coniophora puteana, Antrodia vaillantii, Gloeophyllum trabeum and Serpula lacrymans. Pine sapwood and beech wood were treated with AS emulsions at solute concentration levels of 2%, 5% and 15%. The mini-blocks treated with 15% concentrations of AS resisted decay by T. versicolor and C. puteana over a long time (12 weeks), while samples treated with low and moderate concentrations underwent considerable mass losses. Accordingly, microscopic studies revealed a high degree of colonisation by the white rot fungus and loss of cell wall integrity (brown rot) in samples treated with 2% AS. At high AS content (15%), no or only initial stages of decay could be observed. In the European standard (1996) test EN 113, the mass loss in all fungal cultures except for the white rot ascomycete H. fragiforme was below 5%, when the samples were treated with 15% AS. The effect of low and moderate AS concentration on the decay resistance was dependent on the fungal strain. The mode of action of AS treatment against basidiomycete decay is discussed.
©2008 by Walter de Gruyter Berlin New York
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- Polyoxometalate (POM) oxidation of lignin model compounds
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- Selection criteria of Eucalyptus globulus Labill. for production of chemithermomechanical pulps (CTMP)
- The effect of (induced) dislocations on the tensile properties of individual Norway spruce fibres
- Mode I and Mode II fracture toughness of densified Sitka spruce fabricated in an airtight atmosphere with high-temperature steam
- Characteristic properties of embedding strength for the nailing of the gonfolo rose (Qualea rosea Aubl.)
- Adhesive penetration of wood cell walls investigated by scanning thermal microscopy (SThM)
- Laboratory screening of tropical hardwoods for natural resistance to the marine borer Limnoria quadripunctata: The role of leachable and non-leachable factors
- Decay resistance of wood treated with amino-silicone compounds
- Hydrothermal treatment of mixed preservative-treated wood waste
- Variation of tracheid length within annual rings of Scots pine and Norway spruce
Articles in the same Issue
- Meetings
- Evaluation of Eucalyptus grandis Hill ex Maiden biopulping with Ceriporiopsis subvermispora under non-aseptic conditions
- Paper dry strength improvement by xyloglucan addition: Wet-end application, spray coating and synergism with borate
- A new and facile method for isolation of lignin from wood based on complete wood dissolution
- Isolation and characterization of lignins from Eucalyptus grandis Hill ex Maiden and Eucalyptus globulus Labill. by enzymatic mild acidolysis (EMAL)
- Fractionation and characterization of xylan rich extracts from birch
- Polyoxometalate (POM) oxidation of lignin model compounds
- Pyrolytic cleavage mechanisms of lignin-ether linkages: A study on p-substituted dimers and trimers
- Polysaccharide degradation in waterlogged oak wood from the ancient warship Vasa
- Degradation of polyethylene glycol and hemicellulose in the Vasa
- Selection criteria of Eucalyptus globulus Labill. for production of chemithermomechanical pulps (CTMP)
- The effect of (induced) dislocations on the tensile properties of individual Norway spruce fibres
- Mode I and Mode II fracture toughness of densified Sitka spruce fabricated in an airtight atmosphere with high-temperature steam
- Characteristic properties of embedding strength for the nailing of the gonfolo rose (Qualea rosea Aubl.)
- Adhesive penetration of wood cell walls investigated by scanning thermal microscopy (SThM)
- Laboratory screening of tropical hardwoods for natural resistance to the marine borer Limnoria quadripunctata: The role of leachable and non-leachable factors
- Decay resistance of wood treated with amino-silicone compounds
- Hydrothermal treatment of mixed preservative-treated wood waste
- Variation of tracheid length within annual rings of Scots pine and Norway spruce
