Rheological properties of blend spinning solution of sodium alginate and TiO_2 nanoparticles

摘要

Rheological properties of blend spinning solution of sodium alginate and TiO_2 nanoparticles (SA/nano-TiO_2) were investigated. The rheological parameters, structural viscosity index (?η) and flow activation energy (E_η) of spinning solutions were calculated. The results reported that the blend spinning solutions were non-newtonian fluids. The apparent viscosity, consistency index (k) and E_η increased with increasing nano-TiO_2 content in SA spinning solution, but the degradation degree of apparent viscosity decreased, flow behavior index (n) only slightly decreased and the ?η had no significantly change. The apparent viscosity (η_a) of spinning solutions could be regulated by changing temperature under 50°C. Blend spinning solution had good stability and practical applicability.