In this work, a fully biodegradable poly(butylene succinate) (PBS) biocomposite was fabricated from ultrafine PBS fiber and waste paper (WP) using a paper-manufacturing and compression molding method. A PBS biocomposite containing 60 wt% WP showed a tensile strength, elongation at break, flexural strength, flexural modulus, interlaminar shear strength (ILSS), and impact strength of 78.1 MPa, 11.1%, 92.0 MPa, 7.5 GPa, 2.9 MPa, and 36.9 kJ/m², respectively, which were superior to those of previously-reported PBS biocomposites. The damage mechanics reveals that tremendous deformation of plant fibers (PF) from WP and their riveting improved the mechanical properties of WP/PBS biocomposites. The weight loss ratio of WP/PBS-60 wt% biocomposite during biodegradation reached 95.1 wt% after immersion in an enzyme solution for 35 d. This fabrication approach provides a novel and facile strategy to develop high-performance, low-cost, and fully biodegradable PBS biocomposites.

在这项工作中，采用造纸和压缩成型方法，由超细PBS纤维和废纸（WP）制成了一种可完全生物降解的聚丁二酸丁二酯（PBS）生物复合材料。包含60 wt％WP的PBS生物复合材料显示出抗张强度，断裂伸长率，挠曲强度，挠曲模量，层间剪切强度（ILSS）和冲击强度分别为78.1 MPa，11.1％，92.0 MPa，7.5 GPa，2.9 MPa和36.9 kJ / m ²分别优于先前报道的PBS生物复合材料。损伤机理表明，WP中植物纤维（PF）的巨大变形及其铆接改善了WP / PBS生物复合材料的机械性能。WP / PBS-60 wt％生物复合材料在生物降解过程中的重量损失率在酶溶液中浸泡35 d后达到95.1 wt％。这种制造方法为开发高性能，低成本和可完全生物降解的PBS生物复合材料提供了一种新颖而简便的策略。