Preparation of 3‐pentadecylphenol‐modified cellulose nanocrystal and its application as a filler to polypropylene nanocomposites having improved antibacterial and mechanical properties

Abstract

Polypropylene (PP) nanocomposites were prepared using cellulose nanocrystal (CNC) grafted with 3-pentadecylphenol (PDP) as a filler. Functionalized CNC (f-CNC) was prepared by the reaction of CNC with 4-oxo-4-(3-pentadecylphenoxy)butanoic acid (PDPBA), where PDPBA was synthesized by reacting succinic anhydride (SA) with PDP. PP nanocomposites containing CNC (PP/CNC) and f-CNC (PP/f-CNC), respectively, were prepared to study the effect of fillers on PP. PP/CNC and PP/f-CNC showed improved mechanical stiffness, and especially, PP/f-CNC was found to have larger mechanical strength value than neat PP and PP/CNC due to the PDP moiety having a long alkyl group in f-CNC. Antibacterial property was observed both from PP/CNC and from PP/f-CNC while that of PP/f-CNC was better than that of CNC because PDP could impart the additional antibacterial activity. The improved mechanical properties and antibacterial property of PP/f-CNC could be ascribed to the respective effect of PDP and CNC.

Cellulose Nanocrystals Examined by Atomic Force Microscopy: Applications and Fundamentals

“…The chief goal of CNC research is to fully harness CNC particles’ excellent physical and chemical capabilities in a variety of applications. CNC particles’ distinct mechanical qualities have led to their widespread application as reinforcing agents in a wide range of polymers including PVA, polypropylene (PP), , polyethylene glyco,l , and many others, as a load-bearing element; it is noteworthy that CNC particles can also be employed on their own to make films and gels . CNC particles can function as liquid crystals or fibers due to their geometry, and their rod shape allows them to generate a variety of geometries as nanostructures, resulting in a wide array of features and functionalities.…”

Modification of Cellulose Nanocrystals as Antibacterial Nanofillers to Fabricate Rechargeable Nanocomposite Films for Active Packaging

“…The excellent antibacterial efficacy was mainly due to the introduction of active chlorine on the chlorinated MAM-CNC, which could deactivate bacteria upon contact. 54 This bactericidal effect was also better than those of rose Bengal-modified CNCs, 52 CNCs grafted with 3-pentadecylphenol, 55 and bacteriocin-immobilized CNCs. 56 These results indicated that the MAM-CNCs are promising antibacterial nanofillers for different polymeric materials.…”

Agriculture-derived Cellulose Nanocrystal Hybrid Composite of Chitosan and Polyethylene Glycol for Enhanced Antimicrobial Properties

“…The antimicrobial property of the CNC-functionalized membrane was assessed by a plate counting method (Shin et al 2022). A colony of different bacteria was grown in a Hilton Agar medium and was contacted with the membrane surface for 3 h at room temperature.…”