文献类型：期刊文献

英文题名：Novel bioresource-based poly(3-Hydroxybutyrate-co-4-Hydroxybutyrate)/poly(LacticAcid) blend fibers with high strength and toughness via melt-spinning

作者：Chen, Ziyang[1];Zhao, Zuoxian[1];Hong, Jianhan[2];Pan, Zhijuan[3]

机构：[1]Soochow Univ, Coll Text & Clothing Engn, Suzhou 215021, Peoples R China;[2]Shaoxing Univ, Coll Text & Garment, Shaoxing 312000, Peoples R China;[3]Soochow Univ, Natl Engn Lab Modern Silk, Suzhou 215123, Peoples R China

年份：2020

卷号：137

期号：32

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000508460600001)、、EI(收录号：20200508116669)、Scopus(收录号：2-s2.0-85078741617)、WOS

基金：This research was funded by the Jiangsu Province Important Research and Development Plan-Industry Innovation and Common Key Technology Project, grant number BE2016073.

语种：英文

外文关键词：Biodegradable; Biopolymers and Renewable Polymers; Biosynthesis of Polymers; Crystallization; Mechanical Properties

外文摘要：Novel biodegradable blend fibers based on the biomaterials poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P3HB4HB) and poly(lacticacid) (PLA) were successfully prepared by combining melt spinning and hot drawing. The results showed that the commixture could continuous and stable spin for a P3HB4HB ratio of 30-35 wt% and winding speed of 20-30 m/min. The thermal stability of the P3HB4HB/PLA blend fiber was increased, as determined by thermogravimetric analysis. The crystallinity degree of the P3HB4HB/PLA blend fibers increased with increasing the P3HB4HB content. The addition of PLA resulted in a low cold crystallization temperature and diminutive size of the lamellar stacks, which would be favorable for the enhancement of the mechanical properties of the blend fiber, when the P3HB4HB content was 30-35 wt%. The P3HB4HB/PLA composite fiber was one type of high-strength and high-toughness fiber, with 1 GPa breaking stress and over 80% strain at break. (c) 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48956.