| Abstract:The poplar P-RC APMP was classified into various fiber fractions by Bauer-McNett Classifier, and the amounts of the fractions, fiber characteristics of the fractions (fiber morphology, surface charge and specific volume and surface area), bonding properties and physical strength properties of the handsheets made of various fiber fractions were studied. The results showed that the distribution of fiber size of P-RC APMP is quite non-uniform and the pulp contains high fines content. With the increase of the sieve meshes in Bauer-McNett Classifier, fiber length and coarseness of the fraction decrease, and the fibers have more surface charge, larger specific surface area, weaker fiber strength, better strength properties of handsheets and stronger inter-fiber bonding ability. |
