Sodium silicate modification can improve the overall performance of wood. The modification process has a great
influence on the properties of modified wood. In this study, a new method was introduced to analyze the wood
modification process, and the properties of modified wood were studied. Poplar wood was modified with sodium
silicate by vacuum-pressure impregnation. After screening using single-factor experiments, an orthogonal experiment was carried out with solution concentration, impregnation time, impregnation pressure, and the cycle time...