Characterizing the Inter-Fiber Bond Strengths of Paper Pulps in Terms of A Breaking Energy.

摘要

The inter-fiber bond strength of paper is an important but an arduous property to measure. In order to characterize a pulp completely,the quality of bondability must be known especially for pulps produced from a mixture of waste paper. It has been postulated that a measure of bond strength can be obtained by measuring 2.5 g/sq m handsheets to tensile failure,recording the number of bonds broken with a sensitive tensile tester and plotting a curve of number of bonds broken as a function of cumulative work done on the system. The value of the minimum slope of this curve is equal to the average energy dissipated per bond break. Results obtained on two different softwood kraft pulps indicate the proposed method may be useful in assessing bond strengths.