Cellulose nanofiber networked bamboo particle-based biocomposites

Bhole, K and Shivakumar, ND and Chauhan, SS and Tonannavar, S (2022) Cellulose nanofiber networked bamboo particle-based biocomposites. In: Polymer Composites, 43 (2). 977 -986.

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Abstract

This paper deals with preparation and characterization of cellulose nano fibers (CNF) extracted from the bamboo pulp using TEMPO (2,2,6,6,-Tetramethyl-1-piperidinyloxy) oxidization method. The CNF was used as a binder to prepare biocomposites (particleboards) from bamboo particles. The specimens were fabricated using an industrial oven and further hot pressing. Morphological analysis of bamboo pulp and CNF was carried out using scanning electron microscope (SEM), confirming fiber formation in nanoscale. Dynamic Mechanical Analysis (DMA) of the pure CNF film shows storage modulus of 121.58 GPa. Composite specimens prepared were subjected to tensile and flexural tests to characterize the mechanical properties. The tensile strength was found to be 0.19 MPa for oven-dried (OD) samples and 0.661 MPa for hot-pressed (HP) samples. The modulus of elasticity (MOE) for OD samples was 121.8 and 1065.5 MPa for HP samples, respectively. Modulus of rupture (MOR) was found to be 0.77 and 3.25 MPa, for OD and HP samples, respectively. The present study results show that the CNF extracted from the bamboo pulp can be used as a sole binder in making biocomposites. © 2021 Society of Plastics Engineers.

Item Type:	Journal Article
Publication:	Polymer Composites
Publisher:	John Wiley and Sons Inc
Additional Information:	The copyright for this article belongs to John Wiley and Sons Inc
Keywords:	Bamboo; Composite materials; Elastic moduli; Film preparation; Hot pressing; Nanocellulose; Nanocomposites; Nanofibers; Ovens; Tensile strength, 2,2,6,6,-tetramethyl-1-piperidinyloxy oxidation; Bamboo pulp; Biocomposite; Cellulose nano fiber; Cellulose nano fiber binder; Cellulose nanofibers; Green composites; Oxidization; Particle-board; Tetramethyl, Scanning electron microscopy
Department/Centre:	Division of Mechanical Sciences > Centre for Product Design & Manufacturing
Date Deposited:	13 Dec 2021 11:34
Last Modified:	21 Sep 2022 06:21
URI:	https://eprints.iisc.ac.in/id/eprint/70750

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