Abstract
Recent years have witnessed significant interest in biodegradable and transparent ultraviolet (UV) protecting films from renewable resources. In the present paper, preparation, characterization and evaluation of UV radiation blocking capability of transparent and flexible cellulose nano fibril (CNF)–poly vinyl alcohol (PVA) films are described. Synthesized films exhibited good transparency in the visible region and UV blocking ability. Addition of plasmonic silver (~ 22 nm) to the films lead to complete blocking of UV radiations. Synthesized films were highly stable for a long exposure to intense sunlight. The defined methods show a straightforward procedure for the fabrication of environment friendly UV-radiation blocking films for industrial/commercial/textile applications.
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