Tailoring hydrogel structures: investigating the effects of multistep cellulose defibrillation on polyvinyl alcohol composites.

Defibrillating cellulose through various grinding steps and incorporating it into hydrogels introduces unique properties that warrant thorough exploration. This study investigates cellulose defibrillation at different steps (15–120) using an ultra-fine friction grinder, blended with high-molecular-weight polyvinyl alcohol (PVA), and crosslinked via freeze–thawing. A critical discovery is the influence of defibrillation on the hydrogel structure, as evidenced by reduced crystallinity, thermal degradation, and the enhanced swelling of PVA chains. Despite an increased elastic modulus of up to 120 steps, the synthesized material maintains remarkable strength under hydrated conditions, holding significant promise in biomaterial applications.

Bibliographic Details

Main Authors:	LIMA, G. G. de, AGGIO, B. B., PEDRO, A. C., LIMA, T. A. de M. de, MAGALHAES, W. L. E.
Other Authors:	GABRIEL GOETTEN DE LIMA, TECHNOLOGICAL UNIVERSITY OF THE SHANNON; BRUNO BERNARDI AGGIO; ALESSANDRA CRISTINA PEDRO; TIELIDY ANGELINA DE MORAES DE LIMA, TECHNOLOGICAL UNIVERSITY OF THE SHANNON; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF.
Format:	Artigo de periódico biblioteca
Language:	eng
Published:	2024-11-26
Subjects:	Nanofibrillated cellulose, Composite hydrogels, Freeze–thawing, Kraft process, Celulose nanofibrilada, Hidrogel, Processo kraft, Celulose, Cellulose,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1169575 https://doi.org/10.3390/gels10030212
Tags:	Add Tag No Tags, Be the first to tag this record!