Modification Of B. Mori Silk Fiber And Fabric Treated With Nano-ZnO

For improving the B.mori silk performance and enhancing the silk product attachment value, the B.mori silk was treated with nano-ZnO dispersion. The feasibility of silk yarn modified with nano material was investigated, which provided theoretical base for developing functional silk with ultramicro material.The optimum preparation technology of Nano-ZnO dispersion system was determined.Then the formation mechanism and dispersed state of nano-ZnO was analyzed by means of modern analysis of the laser size detector and transmission electron microscope. The average diameter of nano-ZnO was 53.16nm,The structures of Bombyx mori silk fiber treated with nano-ZnO was studied by Fourier transfoim infrared microspectroscopy ( FT-IR), X-ray diffraction (XRD), thermal analysis and X-ray photoelectron spectroscopy (XPS) analysis. It was found that the interior structure of the treated silk fiber tended to formβ-structure, and the comparative crystallinity and thermal stability increased at the same time. Furthermore, the crosslinking reaction occurred among silk fiber, coupling reagent and nano-ZnO.The silk fabric treated with nano-ZnO dispersion has good antibacterial performance against the staphylococcus aureus and bacillus coli. The findings indicated that the antibacterial and anti-UV performance of the silk fabric enhanced distinctly. In addition, the dyeability and anti-wrinkle ability of treated fabric have enhanced. Moreover, the whiteness and its mechanical intension changed little.