US EPA

1631429 

Journal Article 

WOOD-INORGANIC COMPOSITES PREPARED BY SOL-GEL PROCESS .3. CHEMICALLY-MODIFIED WOOD-INORGANIC COMPOSITES 

Saka, S; Yakake, Y 

1993 

39 

3 

308-314 

WOS:A1993LA90800009 

To bind it with inorganic substances, wood was chemically modified with 3-isocyanatepropyl triethoxysilane (IPTEOS). The prepared chemically-modified wood
was then treated with a tetraisopropyl titanate solution in isopropanol to prepare chemically-
modified wood-inorganic composites with TiO2 gels. In these composites, the TiO2 gels were
deposited in the cell lumens, binding chemically with wood substances on the inner surfaces of
the cell walls. Such composites showed great dimensional stabilities with fire-resistant effects.
Furthermore, a comparison with wood-inorganic composites prepared with a tetraisopropyl titanate
solution in isopropanol indicated that the chemical modification with IPTEOS is effective for
subsequent treatment with tetraisopropyl titanate to improve the properties of the wood. 

WOOD-INORGANIC COMPOSITES; CHEMICALLY-MODIFIED WOOD-INORGANIC COMPOSITES; TIO2 GELS; SOL GEL PROCESS; TOPOCHEMICAL EFFECTS