Innovative Bio-based Poly(Lactic Acid)/Poly(Alkylene Furanoate)s Fiber Blends for Sustainable Textile Applications

Abstract This work aims at producing and investigating, for the first time, microstructural thermo-mechanical properties of fibers constituted by poly(lactic acid) (PLA)/poly(alkylene furanoate)s (PAFs) blends textile applications. Two different PAFs have been investigated, i.e., poly(octylene furanoate) (P8F) poly(dodecylene (P12F), which blended with PLA in concentrations spun through a lab-made wet spinning device. The investigation fiber cross-section evidenced domains homogeneously dispersed within matrix. immiscibility produced was also suggested fact that glass transition temperature unaffected presence PAF. thermal stability not substantially influenced PAF content, whereas water absorption tendency decreased an increase P12F fraction. mechanical PLA/P8F P8F amount, while PLA/P12F stiffness strength were approximatively constant increasing content. drawing process, performed 70 °C two draw ratios, brought interesting upon introduction. These promising results constitute basis future research on these innovative bio-based fibers.