earticle

영어

Beating and refining can be defined as the mechanical treatment of pulp carried out in the presence of water usually by passing the suspension of pulp fibers through a relatively narrow gap between a revolving rotor and a stationary stator, both of which carry bars or knives aligned more or less across the line of flow of the stock. Beating or refining is carried out primarily because of its effects on the physical properties of finished sheep of paper.
As the result, we found that the mechanical pertreatment did not decrease fiber length and freeness, compared to the control (no pretreatment). The mechanical pretreatment seemed to have resulted in the breakdowns of fiber internal structure, microcompressions on the surface of fibers and internal fibrillation (or delamination) to fibers.