Abstract

Melt composite spinning was utilized to successfully produce the degradable side-by-side fibers employing poly(butylene succinate-co-terephthalate) (PBST) and poly(L-lactic acid) (PLLA). The structures, elasticity during recycling, and biodegradability of fibers were investigated. The findings reveal that the fibers contain entirely crimped structures and intriguing half-wrinkled surfaces, similar to half rings aligned along the fiber axis. After five cycles, the crimp elastic ratio can reach 96.3 % ± 1.7 %. After nine days, the mass loss can reach 17.50 wt% deteriorated.

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