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Impact of organosilicon treatments on the wood-water relationship of solid wood
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Liesbeth De Vetter
Published/Copyright:
May 4, 2010
Abstract
The interaction of wood with water is a primary factor for degradation of the substrate. Organosilicons are known to behave like a water repellent, thus they are in discussion as protecting agents for wood used outdoors. In the present paper, the influence of water on organosilicon treated material was investigated. Solid Scots pine sapwood was impregnated or treated superficially with low concentrations of organosilicons and evaluated for several water related characteristics. The results confirm the water repellent properties of organosilicons as the polysiloxane film increases the contact angle between water and the wood substrate. However, they do not influence the total uptake of moisture but can change the rate at which moisture is taken up, and as such, prolong the service life of the substrate. In general, impregnated specimens behave better than dipped ones. To gain more insight in the exact behavior, continuous moisture uptake experiments are needed in real outdoor exposure tests.
Received: 2009-9-11
Accepted: 2010-3-4
Published Online: 2010-05-04
Published Online: 2010-05-4
Published in Print: 2010-06-01
©2010 by Walter de Gruyter Berlin New York
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Keywords for this article
anti-swelling efficiency;
contact angles;
organosilicons;
water repellence
Articles in the same Issue
- Original Papers
- Pre-extraction of hemicelluloses and subsequent ASA and ASAM pulping: Comparison of autohydrolysis and alkaline extraction
- Effect of drying and rewetting of wood on cellulose molecular packing
- Determination of native (wood derived) formaldehyde by the desiccator method in particleboards generated during panel production
- A computational study of pyrolysis reactions of lignin model compounds
- Energy reduction of refining by cellulases
- Macro- and micro-mechanical properties of red oak wood (Quercus rubra L.) treated with hemicellulases
- Acoustic emission measurements and lattice simulations of microfracture events in spruce
- Impact of organosilicon treatments on the wood-water relationship of solid wood
- Analysis of the water vapour sorption behaviour of Sitka spruce [Picea sitchensis (Bongard) Carr.] based on the parallel exponential kinetics model
- Effects of modification with glutaraldehyde on the mechanical properties of wood
- Effect of glutaraldehyde on water related properties of solid wood
- Creep behavior of bamboo under various desorption conditions
- Predicting the longitudinal modulus of elasticity of Sitka spruce from cellulose orientation and abundance
- Examination of the mode I critical stress intensity factor of wood obtained by single-edge-notched bending test
- Potential Brazilian wood species for bows of string instruments
- Non-destructive assessment of green density and moisture condition in plantation-grown radiata pine (Pinus radiata D. Don.) by increment core measurements
- Development of wood decay in wound-initiated discolored wood of eastern red cedar
- The effects of subthreshold loadings of tebuconazole, DDAC, and boric acid on wood decay by Postia placenta
- Short Notes
- New aspects of residual lignin isolation
- Personalia
- Horst H. Nimz celebrated his 80th birthday on April 21st, 2010
- Meetings
- Meetings
