PREPARATION OF ANTIBACTERIAL SELF-REINFORCED ZINC OXIDE-CELLULOSE COMPOSITE BY THE SYNTHESIS OF ZNO IN PARTIALLY DISSOLVED CELLULOSE

摘要

A novel preparation route of zinc oxide(ZnO)-cellulose composite was developed via synthesis of ZnO in partially dissolved cellulose.Filter paper was partially dissolved in zinc chloride(ZnCl2)solution.Then,the ZnO-cellulose composite was achieved when the partially dissolved cellulose was reacted with sodium hydroxide(NaOH)solution.Several factors affecting the ZnO content and mechanical properties of the composite were investigated.The ZnO-cellulose composite was characterized using X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),scanning electron microscope(SEM)and energy dispersive X-ray spectroscopy(EDS).Compared to the untreated paper,the ZnO-cellulose composite had high compactness.Meanwhile,its tensile strength and folding strength were improved two times and fifteen times,respectively.Cellulose fibers treated with this method had the skeleton of un-dissolved cellulose fibers,the matrix of gelled cellulose,and flower-like ZnO nanoplate on cellulose surface.In addition,the antibacterial property was identified from the ZnO-cellulose composite.