Advanced Multifunctional Oil Structurants for Sustainable Lubricants Engineered by Electrospinning Lignin/Cellulose Acetate Butyrate Nanofibers and TiO2 Atomic Layer Deposition DOI Creative Commons
José F. Rubio‐Valle, E. Martı́nez, Margarita Sánchez‐Domínguez

et al.

Small Structures, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

This work investigates the potential of electrospun nanofibers derived from alkaline kraft lignin (AKL) and cellulose acetate butyrate (CAB) as renewable structuring agents for vegetable oils their modification with TiO 2 by means atomic layer deposition (ALD). These are targeted to replace traditional components lubricating greases more ecofriendly multifunctional ingredients resources. The electrospinnability AKL/CAB solutions improves concentration, a critical entanglement concentration ( C e ≈ 7.2 wt%) that needs be exceeded obtain fiber‐dominated nanostructures. Above , increasing solution yields larger fiber diameters (from 0.63 2.69 μm) higher structural homogeneity. Higher CAB contents favor formation uniform nanofiber networks improved elongational properties. Dispersions mats in castor oil produce stable gel‐like systems, tunable rheological properties depending on content AKL:CAB ratio. Oleo‐dispersions AKL‐rich provide lower friction coefficients (≈0.11) reduced wear (365 μm average scar diameter) tribological contact. ALD remarkably these oleo‐dispersions, significantly reducing (by 41%) totally preventing wear, which is reported noticeable advance customization semisolid lubricants.

Language: Английский

Advanced Multifunctional Oil Structurants for Sustainable Lubricants Engineered by Electrospinning Lignin/Cellulose Acetate Butyrate Nanofibers and TiO2 Atomic Layer Deposition DOI Creative Commons
José F. Rubio‐Valle, E. Martı́nez, Margarita Sánchez‐Domínguez

et al.

Small Structures, Journal Year: 2025, Volume and Issue: unknown

Published: May 15, 2025

This work investigates the potential of electrospun nanofibers derived from alkaline kraft lignin (AKL) and cellulose acetate butyrate (CAB) as renewable structuring agents for vegetable oils their modification with TiO 2 by means atomic layer deposition (ALD). These are targeted to replace traditional components lubricating greases more ecofriendly multifunctional ingredients resources. The electrospinnability AKL/CAB solutions improves concentration, a critical entanglement concentration ( C e ≈ 7.2 wt%) that needs be exceeded obtain fiber‐dominated nanostructures. Above , increasing solution yields larger fiber diameters (from 0.63 2.69 μm) higher structural homogeneity. Higher CAB contents favor formation uniform nanofiber networks improved elongational properties. Dispersions mats in castor oil produce stable gel‐like systems, tunable rheological properties depending on content AKL:CAB ratio. Oleo‐dispersions AKL‐rich provide lower friction coefficients (≈0.11) reduced wear (365 μm average scar diameter) tribological contact. ALD remarkably these oleo‐dispersions, significantly reducing (by 41%) totally preventing wear, which is reported noticeable advance customization semisolid lubricants.

Language: Английский

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