Wettability of silicananoparticle–surfactant nanocomposite interfacial layers

Maestro, Armando; Guzmán, Eduardo; Santini, Eva; Ravera, Francesca; Liggieri, Libero; Ortega, Francisco; Rubio, Ramón G.

doi:10.1039/c1sm06421e

Cited by 149 publications

(140 citation statements)

References 46 publications

(82 reference statements)

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“…It was found that d = 9.0, 15.0, and 60.0 ± 0.2 nm, as average particle diameters, in agreement with the nominal values by the BET data, i.e., 300, 200, and 50 cm 2 /g, respectively, and a ζ-potential of −42 ± 4 mV, in agreement with what was found in ref 25.…”

Section: Methodssupporting

confidence: 89%

Two-Dimensional DPPC Based Emulsion-like Structures Stabilized by Silica Nanoparticles

et al. 2014

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We studied the mechanical and structural properties of mixed surface layers composed by 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and silica nanoparticles (NPs). These layers are obtained by spreading a DPPC Langmuir monolayer on a colloidal silica dispersion. The transfer/incorporation of NPs into the DPPC monolayer, driven by electrostatic interactions, alters the molecular orientation, the mechanisms of domain formation, and consequently the phase behavior of the surface layer during compression. The investigation of these systems by means of complementary techniques (Langmuir trough, fluorescence microscopy, ellipsometry, and scanning electron microscopy (SEM)) shows that the incorporated NPs preferentially distribute along the liquid expanded phase of DPPC. The layer assumes the stable and homogeneous bidimensional structure of a two-dimensional (2D) analogue of a Pickering emulsion. In fact, the presence of particles provides a circular shape to the DPPC domains and stabilizes them against growth and coalescence during the monolayer compression.

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Section: Methodssupporting

confidence: 89%

Two-Dimensional DPPC Based Emulsion-like Structures Stabilized by Silica Nanoparticles

et al. 2014

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“…From the comparison of the latter two isotherms, it is apparent that the increase in the salinity of the solution results in an increase of the surface activity of CTAB at the air-water interface and in a noticeable decrease of the critical micellar concentration (cmc) of about one decade [29]. It is worth to mention that seawater contains a complex salt mixture [30], with NaCl as the major component.…”

Section: Effect Of Surfactant On the Sw Interfacial Propertiesmentioning

confidence: 99%

Surfactant induced complex formation and their effects on the interfacial properties of seawater

Guzmán¹,

Santini²,

Benedetti³

et al. 2014

Colloids and Surfaces B: Biointerfaces

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“…For this reason, the static contact angle (CA) tests of p‐SiO 2 and f‐SiO 2 were carried out and the results shown in the insets of Figure reveal that the CA values increase from 12° (p‐SiO 2 ) to 52° (f‐SiO 2 ). The hydrophobicity improvement of f‐SiO 2 suggests better dispersion and fine compatibility in polymer matrix …”

Section: Resultsmentioning

confidence: 99%

Simultaneously reinforcing and toughening poly(lactic acid) by incorporating reactive melt‐functionalized silica nanoparticles

Wang

Zhang

et al. 2019

J of Applied Polymer Sci

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Simultaneously reinforcing and toughening poly(lactic acid) (PLA) was carried out by adding a small amount of functionalized SiO2 (f‐SiO2) with grafting degraded PLA chains in this work. Typically, the high shear force and high temperature condition of melt blending were employed to accelerate the degradation of PLA and graft the degraded PLA chains onto SiO2.The structure characterizations revealed that large quantity of degraded PLA chains were grafted onto the surface of SiO2 by transesterification, condensation, and esterification reactions during melt blending. Due to the improvement in dispersion and interfacial interaction in PLA matrix, the f‐SiO2 exhibited an effective reinforcing and toughening effect for PLA, where the tensile strength, elongation at break, and impact toughness of PLA/f‐SiO2 nanocomposite increased by 14.9, 47.8, and 30.3% compared to neat PLA. Besides, the degree of crystallinity of PLA was significantly improved by the added f‐SiO2, which also contributed to improving mechanical properties. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48834.

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Wettability of silicananoparticle–surfactant nanocomposite interfacial layers

Cited by 149 publications

References 46 publications

Two-Dimensional DPPC Based Emulsion-like Structures Stabilized by Silica Nanoparticles

Two-Dimensional DPPC Based Emulsion-like Structures Stabilized by Silica Nanoparticles

Surfactant induced complex formation and their effects on the interfacial properties of seawater

Simultaneously reinforcing and toughening poly(lactic acid) by incorporating reactive melt‐functionalized silica nanoparticles

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