Tailoring Hydrogel Structures: Investigating the Effects of Multistep Cellulose Defibrillation on Polyvinyl Alcohol Composites

Autor:	Gabriel Goetten de Lima, Bruno Bernardi Aggio, Alessandra Cristina Pedro, Tielidy A. de M. de Lima, Washington Luiz Esteves Magalhães
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	PVA nanofibrillated cellulose composite hydrogels freeze–thawing kraft process Science Chemistry QD1-999 Inorganic chemistry QD146-197 General. Including alchemy QD1-65
Zdroj:	Gels, Vol 10, Iss 3, p 212 (2024)
Druh dokumentu:	article
ISSN:	10030212 2310-2861
DOI:	10.3390/gels10030212
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/e18cebfb0d7746aa9271f87ea5eeb86f Zobrazit plný text záznamu View record in DOAJ