再生细菌纤维素/氧化铝复合纤维的制备及性能研究

Fabrication and Properties of Regenerated Bacterial Cellulose /Alumina Hybrid Fibers

通过物理气相沉积技术(PVDT)制备再生细菌纤维素/氧化铝(RBC/Al2O3)复合纤维,运用SEM,FT-IR,XPS,XRD,TGA及电子单丝强力仪对样品的形貌、结构、成分、热稳定性和机械强度进行表征。结果表明:再生细菌纤维素纤维表面形成了致密的Al2O3包覆层,当Al2O3包覆层厚度达到40 nm时,RBC/Al2O3复合纤维的机械强度提高了大约60%,优于商用的黏胶纤维;氧化铝包覆层对RBC纤维的热稳定性没有影响。因此,RBC/Al2O3复合纤维在纺织工业方面具有较大的应用潜力。

Regenerated bacterial cellulose /alumina（ RBC /Al2O3） hybrid fibers have been successfully fabricated by using physical vapor deposition technique（ PVDT）,and their morphology,structure,composition,thermal stability and physical properties were characterized by SEM,FT-IR,XPS,XRD,TGA and single filament electric tenacity tester. The investigations indicate that the alumina coating layers are indeed formed and the mechanical strength of RBC fibers has been significantly improved. Especially when the thickness of Al2O3coating layers is up to 40 nm,the tensile property of RBC /Al2O3hybrid fibers result in about 60% increase,superior to the commercial viscose rayon. It is also founded that the Al2O3coating layers have no impact on the thermal stability of RBC fibers. Therefore,RBC /Al2O3hybrid fibers show a great potential in textile industry in the near future.