Timber Properties and Cellulose Crystallites Size in Pine Wood Cut in Different Sawing Patterns after Pretreatment with CH3COOH and H2O2 and Densification

One process to improve wood quality is densification or surface compression. Our study analyzed the changes in some basic properties of pine wood, including its anatomical structure, density, modulus elasticity (MOE), and dimensions cellulose crystallites, after following soaking pretreatment CH3COOH H2O2 at a concentration 20%. Samples were sawn radial tangential directions for analysis wood. The results showed change shape tracheid cells from hexagonal oval, as well damage ray cell constituents on surface. thickness decrease samples was accordance with target, which meant that spring-back short. In general, boards had higher density than boards, lower MOE crystallite dimensions. findings densified board stronger board.