CELLULOSE-BASED FIBERS FROM LIQUID-CRYSTALLINE SOLUTIONS .5. PROCESSING AND MORPHOLOGY OF CAB BLENDS WITH LIGNIN

Continuous fibers from blends of cellulose acetate butyrate (CAB) with lignin (L) were spun from liquid crystalline solution. Morphological investigations suggest that CAB and L form blends with considerable ph ase mixing. The porosity of the surface structure of CAB/L fibres incr eased with increasing L content. The mechanical properties of the L-co ntaining fibres increased with phase mixing of CAB and L molecules in the fibre matrix. This study shows that phase mixing can be enhanced b y coagulation during wet spinning. (C) 1997 Elsevier Science Ltd.