Methods for Wood Modification
Chemical modification of wood: Chemical reactants react with hydroxyl groups in the wood cell wall polymer, leading to the formation of covalent bonds between the reactants and the wood matrix.
Wood thermal modification: Heating wood leads to a certain degree of degradation of its components, resulting in the desired improvement in wood properties.
Wood surface modification: Chemical, physical, or biological (enzyme) reagents are applied to the wood surface to achieve the desired performance improvement.
Wood impregnation modification: Fill the wood matrix with inert materials (impregnating agents) to achieve the desired performance changes.
Wood densification modification: First, steam or boil the wood in hot water to soften it, and then use a hot press to heat the wood to a specified thickness, thereby improving the density and strength of the wood.
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