CONSOLIDATION OF DETERIORATED WOOD WITH SOLUBLE RESINS
Y. Wang, & A.P. Schniewind
ABSTRACT—Consolidation of deteriorated wood by impregnation with soluble thermoplastic resins is considered the most promising method because of their physical and mechanical properties, and their reversibility compared with thermosetting synthetic resins. Type of soluble thermoplastic resin, type of solvent, resin concentration, and drying rate of solvent were examined in this study to find their effects on improvement in strength and stiffness. Butvar B98 appears to give somewhat better improvement in strength than Butvar B90. Acryloid B72 has limitations as a consolidant due to solvent retention, the latter acting as a plasticizer. The choice of solvent or of concentration cannot be made on absolute terms, and must be tailored to the particular requirements and conditions of the object to be treated. Very slow rates of solvent removal after treatment did not appear to be advantageous.
2. SYNTHETIC RESINS AS CONSOLIDANTS
3. BASIC FACTORS IN THE TREATMENT OF WOOD
5. EXPERIMENTAL MATERIALS AND METHODS
6. RESULTS AND DISCUSSION