Study on Dissolving Rules of Nano Particles from E. camaldulensis Wood Flour

Now Eucalyptus wood begins to be used to pulp. The leaching rule of nano particles from E.camaldulensis Wood has an important significance in the forestry research and paper making engineering. Therefore, based on the single-factor method, the fresh E. camaldulensis shavings were treated by LiOH in a concentration range of 0.5%~25% g/mL and the duration is 3, 16 and 24 hours respectively. The extraction mass was analyzed and the results were discussed. The filtrates were analyzed by ZETA and SIZER. The results were following as: (1)The extraction mass arrived at the maximum value when concentration is about 17.5%. (2)The micro/nano particles in the diameter of 531-1720 nm, 531-17200 nm, 164-531nm is the most at the extracting time of 3h, 16h, 24h, respectively (2) The diameter the micro/nano particles of wood extractives and hemicellulose is chiefly between 164-1720 nm according to number fraction. However, there are micro particles in the diameter of more than 1720nm when LiOH concentration is biger than 15%. The micro/nano particles in the diameter of 531-1720 nm, 531-1720 nm, 164-531 nm is the most at the extracting time of 3h, 16h, 24h, respectively.