Bioabsorption and environmental degradation of high strength fibers and nanofibers of bio-based polymers

高拉伸强度纤维和纳米纤维由微生物聚酯和聚乳酸加工而成，所述聚乳酸由可再生资源如糖和植物油生产。利用微束X射线衍射和X射线显微层析技术对SPring-8的力学性能进行了研究，并对材料的分子结构、晶体结构和内部结构进行了分析。此外，纳米纤维在大鼠体内的生物吸收性和单丝在土壤中的环境降解性也得到了证实。

High tensile strength fibers and nanofibers were processed from microbial polyesters and poly(lactic acid) produced from renewable resources as sugar and plant oil. Mechanical properties were investigated and molecular, crystal and inner structures were analyzed by using micro-beam X-ray diffraction and X-ray micro-tomography techniques in SPring-8. Furthermore, bio-absorbability of nanofibers in rat and environmental degradability of monofilament in soil and were demonstrated.