COAGULATION EFFECT ON FINE STRUCTURES OF REGENERATED CELLULOSE

PART II. STUDIES ON MODEL CELLULOSE GELS COAGULATED BY A SINGLE-BATH TREATMENT

Abstract

In this paper, fine structures of cellulose gels coagulated freely in a single-bath such as H₂SO₄ or H₂SO₄ Na₂SO₄ baths, were investigated. Effects of bath composition, temperatue, acid-alkali ratio and degree of ripeness of viscose are examined and discussed.
Although it appears that this bath produces regenerated cellulose in a single reaction, it is appearent that gelatination and regeneration processes must still occur either simultaneously ar in some definite, relative succession, depending upon the bath conditions. On the basis of above suggestion, all experimental results could be explained satisfactorily from a point of fundamental view confirmed in the previous study.