Conservation of model degraded pine wood with selected organosilicons studied by XFM and nanoindentation
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View abstract on PubMed
Summary
This summary is machine-generated.Organosilicon compounds effectively stabilize degraded wood, with penetration into cell walls crucial for preservation. The best results depend on the specific organosilicon and wood condition, requiring tailored conservation approaches.
Area Of Science
- Materials Science
- Wood Science
- Conservation Science
Background
- Archeological wood conservation requires model materials for testing new agents.
- Understanding organosilicon compound mechanisms is key to effective wood preservation.
Purpose Of The Study
- To determine the mechanism of wood stabilization by organosilicon compounds.
- To inform effective application strategies for preserving wooden artifacts.
Main Methods
- Treatment of chemically (ChP) and biologically degraded (BP) Scots pine model wood with Methyltrimethoxysilane (MTMS), (3-Mercaptopropyl)trimethoxysilane (MPTMS), and DEAPTMDS.
- Synchrotron-based X-ray fluorescence microscopy (XFM) for organosilicon penetration analysis.
- Nanoindentation for assessing mechanical properties of treated wood cell walls.
Main Results
- High volumetric anti-shrink efficiency (ASEv) achieved (74-82%), except for MTMS-treated ChP (52%).
- Organosilicons penetrated cell lumina and walls; retention was highest in BP wood.
- DEAPTMDS plasticized cell walls, reducing elastic modulus and hardness; MTMS/MPTMS effects varied.
Conclusions
- Organosilicon treatment effectiveness depends on both the compound and the wood's properties.
- Cell wall infiltration is vital for dimensional stabilization.
- A tailored, non-universal approach is necessary for conserving individual wooden objects.
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