Microgeometry of cellulose paper top made of mulberry tree bark branches

Abstract

The paper presents the study results of a microgeometry of the paper top made of cellulose obtained from the bark of mulberry tree branches and paper obtained from cotton pulp for comparison. A relationship has been established between the parameters of the technological process of pulp handsheets, in particular calendering, and the surface properties of paper. A study of the surface properties of paper samples was carried out using the direct method of atomic force microscopy, which is universal in the study of surface topography on a nanoscale. Using a Solver HV scanning probe microscope, the microgeometry of the paper top on a nanoscale and a direct image of the profile of the relief changes in topographic images have been examined. It was revealed that the roughness parameters Ra of the surface of a paper sample made of cellulose pulp obtained from the bark of mulberry tree branches after calendering in three frames ranged from 4,86 to 26,34 nm. It was found that the direct method of atomic force microscopy quickly made it possible to obtain surface raggedness parameters on a nanoscale and a direct image of the profile of relief differences in topographic images.