Investigation on Reinforcement Effects of Nanocellulose on the Mechanical Properties, Water Absorption Capacity, Biodegradability, Optical Properties, and Thermal Stability of a Polyvinyl Alcohol Nanocomposite Film

This paper presents the reinforcement of nanocellulose (NC) in polyvinyl alcohol (PVA) to examine effect amount on properties PVA. The was successfully extracted by sulfuric acid hydrolysis method and ultrasonication, successively reinforced with solvent-casting method. After incorporating into PVA matrix, tensile strength, elongation at break, water absorption capacity, transmittance, thermal stability, biodegradability investigated. strength increased from 24.5 ± 0.53 MPa id="M2"> 35.5 0.55 id="M3"> 40.6 0.73 addition 2%NC 5%NC, respectively. break id="M4"> 40 % id="M5"> 45.7 2%NC, after 7%NC, it decreased id="M6"> 32.2 0.75 . capacity result reveals that neat absorbs highest which is id="M7"> 84.6 0.56 reduced id="M8"> 73 0.78 adding 2%NC. By increasing loading 7%, intake id="M9"> 61 0.59 illustrates linearly increment NC. ultraviolet-visible (UV-Vis) implies transmittance PVA-2%NC composite film 85.4% 78.2% 600 nm, respectively, indicates decrement transmittance. thermogravimetry analysis (TGA) stability particles reduced. weight loss id="M10"> 70.7 1.7 90 days while films 1%, 3%, 5%, 9% id="M11"> 65 1.85 , id="M12"> 57 1.57 id="M13"> 55.6 0.64 id="M14"> 52 1.73 id="M15"> 53.1 1.72 scanning electron microscopy micrograph for PVA-6%NC nanocomposite a dispersion matrix.