Application of Eucalyptus Wood Cellulose in the Composition of Absorbent Types of Paper
摘要
In this work, we investigated the use of eucalyptus cellulose in the composition of paper pulp to produce absorbent types of paper. Softwood cellulose was ground separately to a grinding degree of 29–36 SHR, and cellulose from eucalyptus to 17–23 SHR, respectively. The content of eucalyptus cellulose and softwood bleached sulfate cellulose in the paper composition is, respectively, 42–48 and 52–58 wt.%. The obtained macroporous structure of the developed paper provides high looseness, which is an indirect characteristic of important indicators of absorbent and filter types of paper, namely: air permeability, absorption capacity, and the presence in the composition of long fibers of sulphate bleached pulp and softwood at a high enough level. That is, the addition of cellulose from eucalyptus with a low degree of grinding allows to obtain paper with a uniform and closed structure, increased porosity, looseness and absorbency and to ensure at a high level its mechanical strength. This technological solution can also be used in the production of filtering paper.