Pickering Emulsions: Role of Particle Wettability and Adhesive Force on Droplet Bridging DOI
Madhvi Tiwari, Madivala G. Basavaraj, Venkateshwar Rao Dugyala

et al.

Langmuir, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

This study demonstrates the engineering of bridged Pickering emulsion (PE) gels by tuning particle position at interface and adhesive forces. is achieved through controlled surface modification hematite particles using oleic acid in a water-decane system. Microscopy observations revealed that droplets are stabilized bridging mechanism, where oil connected shared monolayer particles, with an intervening water layer between them. The experimental reveal concentration affects both respect to (wettability) forces, leading formation emulsions specific ranges. To investigate this, strength force measured as function direct visualization droplet stretching technique, respectively. These studies confirm low concentrations, favors bridging, preferentially wettable continuous phase (water) but forces not strong. Thus, this condition promotes oil-in-water without bridging. While, higher hinders despite sufficient because becomes dispersed (oil), thereby supporting inversion emulsions. Therefore, precise amount necessary achieve stable factors contributing bridge formation. Further, versatility process illustrated different types modifiers. In all cases, obtained modifier. effect water-to-decane volume ratio on stability these also studied. show remarkable under undisturbed conditions due gel-like nature being partially covered particles. Moreover, after such destabilized external stimuli, similar features can be readily reversibly formed.

Language: Английский

Porous covalent organic framework films with abundant zinc-philic groups by controlled interfacial polymerization for zinc anode protection DOI
Ning An,

Liangheng Liu,

Yongqiang Fang

et al.

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 117, P. 116214 - 116214

Published: March 14, 2025

Language: Английский

Citations

0
Surfactant‐Assisted Construction of Covalent Organic Frameworks DOI Creative Commons
Yuan Li,

Qingqing Zhang,

Zhendong Dai

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Abstract Covalent organic frameworks (COFs), characterized by their unique ordered pore structures, chemical diversity, and high degree of designability, have demonstrated immense application potential across multiple fields. However, traditional synthesis methods often encounter challenges such as low crystallinity uneven morphology. The introduction surfactants has opened up new pathways for the COFs. Leveraging intermolecular interactions self‐assembly properties, can effectively regulate nucleation, growth processes, ultimate structure properties This paper systematically reviews latest research achievements future trends in surfactant‐assisted COF synthesis, emphasizing crucial role key additives preparation Surfactants not only facilitate uniform nucleation COFs, enhancing structural order products but also enable precise diverse regulation dimensionality, morphology, Furthermore, influencing dispersion processability enhance practicality workability. Finally, presents some prospects opportunities this emerging area.

Language: Английский

Citations

0
Pickering Emulsions: Role of Particle Wettability and Adhesive Force on Droplet Bridging DOI
Madhvi Tiwari, Madivala G. Basavaraj, Venkateshwar Rao Dugyala

et al.

Langmuir, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

This study demonstrates the engineering of bridged Pickering emulsion (PE) gels by tuning particle position at interface and adhesive forces. is achieved through controlled surface modification hematite particles using oleic acid in a water-decane system. Microscopy observations revealed that droplets are stabilized bridging mechanism, where oil connected shared monolayer particles, with an intervening water layer between them. The experimental reveal concentration affects both respect to (wettability) forces, leading formation emulsions specific ranges. To investigate this, strength force measured as function direct visualization droplet stretching technique, respectively. These studies confirm low concentrations, favors bridging, preferentially wettable continuous phase (water) but forces not strong. Thus, this condition promotes oil-in-water without bridging. While, higher hinders despite sufficient because becomes dispersed (oil), thereby supporting inversion emulsions. Therefore, precise amount necessary achieve stable factors contributing bridge formation. Further, versatility process illustrated different types modifiers. In all cases, obtained modifier. effect water-to-decane volume ratio on stability these also studied. show remarkable under undisturbed conditions due gel-like nature being partially covered particles. Moreover, after such destabilized external stimuli, similar features can be readily reversibly formed.

Language: Английский

Citations

0