Date of Award

12-1963

Degree Name

Bachelor of Science

Department

Pulp and Paper Technology

Abstract

Several different thrust pressures were exerted on the plates of the Mead Laboratory Refiner and pulp samples were refined over a wide freeness range for each of the several pressures. The strength characteristics developed were measured and it was found that maximum burst and tensile strength was developed by a thrust pressure of 31.22 pounds. Maximum tearing strength was developed at a thrust pressure of 25.94 pounds.

The refining time required to reach a given freeness increased as as the thrust was reduced, but reached a maximum at 20.66 pounds and remained constant for lesser pressures.

Share

COinS