Flame retardant properties of Viscose/Carrageenan fibers blend papers

Viscose fiber (VIF) burns easily, bio-based carrageenan fiber (CAF) is inherently flame retardant. Can the addition of carrageenan fibers improve the flame retardant properties of VIF/CAF blended materials? In this study, VIF/CAF papers were successfully prepared in a green way without any pollution. The thermal degradation properties and flame retardancy of VIF/CAF papers were tested by thermogravimetric analysis, limiting oxygen index test, flammability test and cone calorimeter test. The results showed that the introduction of carrageenan fibers significantly changed the thermal stability and flame retardancy of VIF/CAF papers. Moreover, the addition of carrageenan fibers obviously increased the mechanical strength of the VIF/CAF papers.