PREPARATION OF A NOVEL NANO-BIOMATERIAL BY DISPERSION OF ZnO NANOPARTICLES INTO CMC/SILICA SURFACE
Abstract
In this study carboxymethyl cellulose (CMC) reinforced by silica at concentrations from 2 to 15(w/w) have been prepared to investigate the optimal physicochemical properties. The morphological structural and thermal properties of the CMC/ZnO-silica nanobiomaterials were studied to analyze size-dependent interfacial properties and reactivity. X-ray diffraction (XRD) technique was used to characterize the crystallographic structure of the nano- biomaterial. XRD results showed that the silica and ZnO were homogenously dispersed in the CMC matrix. Scanning electron microscopy (SEM) was used to evaluate the ZnO nano particle settlement on silica surface. The thermal stability of CMC and the novel nano-biomaterial was investigated by thermal gravimetric analysis (TGA). The thermal stability of the nano-material was improved systematically with increasing amounts of silica, up to a loading of 10 wt %. The hardness and the elastic modulus were gradually enhanced with increasing silica concentration.
Keywords
References
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Details
Primary Language
English
Subjects
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Journal Section
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Publication Date
January 30, 2015
Submission Date
January 27, 2015
Acceptance Date
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Published in Issue
Year 2015 Volume: 2 Number: 2
