Preparation and Properties of PLLA/PBS Fibers

By : Zujiang Xiong, Rui Wang, Ningning Liang, Chunfang Yang, Xiuqin Zhang

Page No: 589-599

Abstract
Poly(butylene succinate) (PBS) was chosen to modify the brittleness of poly(L-lactide) (PLLA). The spinabilities of PLLA/PBS blends with different PBS compositions were investigated, and PLLA/PBS fibers were obtained via two-step melt spinning. The effects of the PBS content on the crystallization, mechanical, dyeing and boiling-water shrinkage properties of PLLA/PBS fibers were systematically studied. It was found that the spinability of PLLA decreased with increasing PBS content. When the PBS content exceeds 10 wt%, it is difficult to prepare PLLA/PBS fibers. The crystallinities of the PLLA/PBS drawn fibers were above 50 %. The addition of PBS improved the flexibility and dyeability of PLLA fibers. Furthermore, the boiling water shrinkage of drawn PLLA/PBS fibers with a draft ratio of 3 was below 10 %, which can meet the fiber application requirements.

Authors :
Zujiang Xiong, Rui Wang, Ningning Liang, Chunfang Yang and Xiuqin Zhang : School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing, 100029, China