| 초록 |
Traditionally, printing/writing papers have been produced from bleached virgin pulp with about 20% mineral fillers.The primary components of wood fiber walls are lamellas or bundles (aggregates) of microfibrils, sometimes called macrofibrils.Colloidal interaction and mechanical interlocking increase in relation to the surface area of the particles (Campbell 1959). During drainage, the contraction of the fibrils pulls the fibers closer together and promotes the formation of direct hydrogen bonds between the surfaces (Retulainen et al. 1998). Due to their large specific surface area, welldispersed cellulosic fibrils enhance the bonding between wood fibers and distribute stress peaks under loading (Retulainen et al.1993a; Lobben 1978).The objective of the present work was to study the effect of the dosage of different types of CNFs on the strength properties of paper. |
